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  Subjects -> ANIMAL WELFARE (Total: 103 journals)
Showing 1 - 22 of 22 Journals sorted by number of followers
Animal Welfare     Open Access   (Followers: 32)
Journal of Veterinary Internal Medicine     Open Access   (Followers: 32)
Animal Nutrition     Open Access   (Followers: 26)
Ethics and Social Welfare     Hybrid Journal   (Followers: 24)
Journal of Applied Animal Welfare Science     Hybrid Journal   (Followers: 22)
Animal Cognition     Hybrid Journal   (Followers: 21)
Journal of Comparative Social Welfare     Hybrid Journal   (Followers: 16)
European Journal of Wildlife Research     Hybrid Journal   (Followers: 14)
Society and Animals     Hybrid Journal   (Followers: 14)
Animals     Open Access   (Followers: 14)
Social Choice and Welfare     Hybrid Journal   (Followers: 12)
Wildfowl     Open Access   (Followers: 12)
Acrocephalus     Open Access   (Followers: 10)
Advances in Animal Biosciences     Full-text available via subscription   (Followers: 10)
Veterinary Clinical Pathology     Hybrid Journal   (Followers: 9)
Asian Journal of Animal and Veterinary Advances     Open Access   (Followers: 8)
Australian Mammalogy     Hybrid Journal   (Followers: 8)
Animal Studies Journal     Open Access   (Followers: 8)
Journal of Research in Forestry, Wildlife and Environment     Open Access   (Followers: 8)
Animal - Science Proceedings     Full-text available via subscription   (Followers: 7)
Canadian Journal of Animal Science     Hybrid Journal   (Followers: 6)
Alternatives to Laboratory Animals     Full-text available via subscription   (Followers: 6)
Proceedings of the Vertebrate Pest Conference     Open Access   (Followers: 6)
Animal Diseases     Open Access   (Followers: 6)
Animal Research International     Full-text available via subscription   (Followers: 5)
Journal of Applied Animal Research     Open Access   (Followers: 5)
Derecho Animal. Forum of Animal Law Studies     Open Access   (Followers: 5)
British Poultry Abstracts     Hybrid Journal   (Followers: 4)
Asian Journal of Animal Sciences     Open Access   (Followers: 4)
Asian Journal of Cell Biology     Open Access   (Followers: 4)
Natural History Sciences     Open Access   (Followers: 4)
Animal Frontiers     Hybrid Journal   (Followers: 4)
Botanical Review     Hybrid Journal   (Followers: 3)
Journal of Animal Science and Biotechnology     Open Access   (Followers: 3)
Bulletin of Animal Health and Production in Africa     Full-text available via subscription   (Followers: 3)
Nutrición Animal Tropical     Open Access   (Followers: 3)
Agrivet : Jurnal Ilmu-Ilmu Pertanian dan Peternakan / Journal of Agricultural Sciences and Veteriner)     Open Access   (Followers: 3)
Journal of Pest Science     Hybrid Journal   (Followers: 2)
Research Journal of Parasitology     Open Access   (Followers: 2)
Between the Species     Open Access   (Followers: 2)
Pastoralism : Research, Policy and Practice     Open Access   (Followers: 2)
International Journal for Parasitology : Parasites and Wildlife     Open Access   (Followers: 2)
Nigerian Journal of Animal Science     Full-text available via subscription   (Followers: 2)
Revista Colombiana de Ciencias Pecuarias (Colombian journal of animal science and veterinary medicine)     Open Access   (Followers: 2)
International Journal of Health, Animal Science and Food Safety     Open Access   (Followers: 2)
Journal of Anatolian Environmental and Animal Sciences     Open Access   (Followers: 2)
Advances in Botanical Research     Full-text available via subscription   (Followers: 1)
Revue de primatologie     Open Access   (Followers: 1)
Archivos de Medicina Veterinaria     Open Access   (Followers: 1)
Australian Holstein Journal     Full-text available via subscription   (Followers: 1)
Italian Journal of Animal Science     Open Access   (Followers: 1)
Online Journal of Animal and Feed Research     Open Access   (Followers: 1)
Global Journal of Animal Scientific Research     Open Access   (Followers: 1)
Buletin Peternakan : Bulletin of Animal Science     Open Access   (Followers: 1)
Journal of Threatened Taxa     Open Access   (Followers: 1)
Applied Animal Science     Hybrid Journal   (Followers: 1)
Journal of Veterinary Science & Medicine     Open Access   (Followers: 1)
Veterinary and Animal Science     Open Access   (Followers: 1)
Archiva Zootehnica     Open Access   (Followers: 1)
Journal of Zoological and Botanical Gardens     Open Access   (Followers: 1)
Human-Wildlife Interactions     Open Access  
Turkish Journal of Veterinary Research     Open Access  
Revista Colombiana de Ciencia Animal     Open Access  
People and Animals : The International Journal of Research and Practice     Open Access  
Hayvansal Üretim     Open Access  
Jurnal Ilmu-Ilmu Peternakan     Open Access  
Translational Animal Science     Open Access  
RUDN Journal of Agronomy and Animal Industries     Open Access  
Spei Domus     Open Access  
Revista de Salud Animal     Open Access  

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Botanical Review
Journal Prestige (SJR): 0.708
Citation Impact (citeScore): 2
Number of Followers: 3  
 
  Hybrid Journal Hybrid journal (It can contain Open Access articles)
ISSN (Print) 1874-9372 - ISSN (Online) 0006-8101
Published by Springer-Verlag Homepage  [2468 journals]
  • A Typological and Morphological Analysis of the Pleurothallidinae
           (Orchidaceae) Inflorescences

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      Abstract: Abstract Despite its relevance, the study of the inflorescence from a typological point of view generally goes unnoticed in taxonomy, which is fundamental for the comparison of structural elements of the same origin. Pleurothallidinae is not the exception, and its typology has not been studied in detail, causing incorrect interpretations of its structures and misapplication of terms. Here the morphology of Pleurothallidinae inflorescences is analyzed and discussed from a typological point of view, based on the detailed study of structural elements of living material, which are illustrated by photographs and diagrams. The study shows that the subtribe presents a generalized type of inflorescences formed by an abbreviated peduncle and branch system that cannot be seen with the naked eye. Each branch may produce coflorescences of different lengths with one or multiple flowers, also presenting different patterns of succession that determine the general appearance of the plant. Single-flowered coflorescences are dominant in members of the Octomeria and Restrepia affinities, while multi-flowered coflorescences dominate the Acianthera, Lepanthes, Masdevallia, Phloeophila, Pleurothallis and Specklinia affinities. A general and practical classification is established for the different types of coflorescences according to the length and number of flowers produced.
      PubDate: 2024-07-09
       
  • Macrofungal Species Richness and Composition of Acre State, Amazon,
           Brazil: State of the Art

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      Abstract: Abstract Data on fungi in the state of Acre lack systematization. A total of 99 species have been recorded, but actual numbers of macrofungi and species composition in local forests are still unknown. In the present study, we sought to produce a checklist of macrofungi collected in Acre, between the years 1901 and 2020. We retrieved and organized information about specimens deposited in the databases of the mycological collections of the New York Botanical Garden and Louisiana State University, and the records made available on the speciesLink platform of the Reference Center for Environmental Information. We added to the information the macrofungi that were published in articles, up to the year 2020. Over 120 years of botanical history in the state, we recorded 1,912 macrofungal specimens collected in Acre. A total of 855 were identified at the species level, corresponding to 279 species distributed in 145 genera and 56 families. The families Polyporaceae, Hypoxylaceae, Xylariaceae and Hymenochaetaceae contribute with about 50% of the identified species. The genera Hypoxylon, Trametes, Xylaria, Ganoderma and Polyporus present the highest species richness, while Hypomontagnella monticulosa, Cerrena caperata, Auricularia delicata, A. fuscosuccinea and Ranadivia modesta are the most abundant species in number of specimens collected. Data analysis allowed us to determine a reliable number that best represents the knowledge of fungi in Acre. However, when considering the estimates of fungal species for the Amazon, these data are insufficient, which demonstrates the need to encourage and invest in more studies on these fungi in the region.
      PubDate: 2024-05-20
       
  • An Overview of Reproductive Allocation and Reproductive Costs in
           Bryophytes: Challenges and Prospects

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      Abstract: Abstract Reproductive allocation and cost play a crucial role in the survival of organisms, but research on these traits in bryophytes has been limited and inconsistent. To address this, we conducted a literature review focusing on bryophyte studies. Our goal was to clarify inconsistencies and explore reproductive allocation and cost concepts, as well as current trends in bryophyte reproduction. We examined different approaches and highlighted advantages and limitations. We emphasized five key topics: the importance of understanding reproductive allocation and reproductive cost in bryophytes; the significance of bryophytes as model organisms; historical research; terminological and methodological inconsistencies; sexual dimorphism and reproductive allocation; and measurement methods. Furthermore, we provided insights into future perspectives. Based on our findings, we advocate for standardized quantification of reproductive allocation. Standardization would enhance comparability and synthesis of results, ultimately advancing our understanding of reproductive allocation and cost of reproduction in bryophytes.
      PubDate: 2024-05-16
       
  • Polyembryony: A Potential Horticultural Trait, Reveals Complex Mechanism,
           Role of Molecular Markers and their Application in Fruit Crops

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      Abstract: Abstract Rootstocks/scions with potential for commercial growing, either for the industry or fresh market, have been one of the main objectives of the fruit breeding programs. Fruit crop breeding has impediments like polyembryony (PE) which is otherwise desirable for clonal plant propagation. In nature PE exist in some fruit crops like citrus, mango, jamun, rose apple, almond etc. In polyembryonic crops, there is an occurrence of the more than one embryo in seed and subsequently numerous seedlings emerge from that single seed. The mother type seedlings are considered nucellar are often vigorous in nature as compared to zygotic ones. In this review, the classification, genetic basis and mechanism of PE has been discussed. In current review, morphogenetic authentication of seedling from polyembronic seed has been discussed in the light of recent research. Transcriptional pathway along with the inheritance pattern and molecular breeding aspects of PE has also been summarized.
      PubDate: 2024-05-01
      DOI: 10.1007/s12229-024-09300-9
       
  • Computer Vision for Plant Disease Recognition: A Comprehensive Review

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      Abstract: Abstract Agriculture has undergone a remarkable transformation, transitioning from traditional methods that were used for centuries to technology-driven practices. The advent of image processing and computational intelligence has revolutionized crop production and plant health monitoring. From drones capturing detailed crop growth data to sensors meticulously measuring soil moisture levels, the possibilities are boundless. This review delves into the cutting-edge research advancements in the application of image processing and computational intelligence techniques for botanical fields, with a particular focus on plant health monitoring. First, it provides a comprehensive overview of the diverse imaging sensors employed in agriculture, including visible, near-infrared, thermal, and hyperspectral imaging. Subsequently, it carefully analyzes the advantages and limitations of each sensor type, along with illustrative examples of their utilization in plant health monitoring. The review further explores the application of machine learning and deep learning for automated plant disease identification, highlighting the critical need for standardized datasets, benchmarking protocols, and domain-specific knowledge for effective implementation. In conclusion, the review emphasizes the future challenges and trends in this rapidly evolving field. It serves as a valuable resource, providing insights into the latest trends in computer vision-based plant disease monitoring and identifying gaps that demand further attention from the scientific community.
      PubDate: 2024-03-05
      DOI: 10.1007/s12229-024-09299-z
       
  • A Review on the State of the Art in Frugivory and Seed Dispersal on
           Islands and the Implications of Global Change

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      Abstract: Abstract We provide an overview of the current state of knowledge of island frugivory and seed dispersal and identify knowledge gaps that are important for fundamental research on—and applied conservation of—island ecosystems. We conducted a systematic literature search of frugivory and seed dispersal on islands, omitting large, continental islands. This revealed a total of 448 studies, most (75%) published during the last two decades, especially after 2010. Nearly 65% of them were focused on eight archipelagos. There is a paucity of studies in Pacific archipelagos near Asia and Australia, and in the Indian Ocean. Data on island frugivory and seed dispersal are diverse but highly uneven in geographic and conceptual coverage. Despite their limited biodiversity, islands are essential reservoirs of endemic plants and animals and their interactions. Due to the simplicity of insular ecosystems, we can assess the importance of seed dispersal theory and mechanisms at species and community levels. These include the ecological and biogeographical meaning and prevalence of non-standard mechanisms of seed dispersal on islands; the seed dispersal effectiveness and the relative roles of different frugivore guilds (birds and reptiles being the most important); and patterns of community organization and their drivers as revealed by interaction networks. Island systems are characterized by the extinction of many natives and endemics, and high rates of species introductions. Therefore, understanding how these losses and additions alter seed dispersal processes has been a prevailing goal of island studies and an essential foundation for the effective restoration and conservation of islands.
      PubDate: 2024-01-17
      DOI: 10.1007/s12229-023-09296-8
       
  • Temporal Dynamics of Tree Crown Fractal Dimension in Two Species of
           Deciduous Oaks

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      Abstract: Abstract Fractal dimension (D) can be used to characterise temporal changes of crown architecture of individual trees. Our goal in this study was to analyse seasonal changes in tree crown fractal dimension of two species of deciduous oaks (Quercus castanea and Q. obtusata) coexisting in a natural forest in central Mexico using low cost sampling, and relate these changes to morphological attributes and environmental variables. Every two months, from May 2017 to September 2018, for each oak species, we photographed fixed portions of the crowns of individual trees, measured their trunk diameters, and obtained average temperature and accumulated precipitation data recorded for the sampling date. From the obtained images, we calculated D values by the semivariogram method using three different variability estimators (square increment, isotropic, and transect variation). We identified a positive correlation between D and temperature, and a negative correlation between temperature and crown cover. The fractal dimension (D) of crowns of two deciduous oak species changes according to the tree’s phenological stage. D values varied through time in relation to tree crown phenological variation, but not with crown cover dimension. We propose a model of annual D value fluctuation in deciduous trees, characterised by two high complexity peaks and two low complexity valleys, corresponding to the effects on crown cover of annual periods of leaf abscission and development.
      PubDate: 2024-01-16
      DOI: 10.1007/s12229-023-09298-6
       
  • Reproductive Biology of Asteraceae on Oceanic Islands

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      Abstract: Abstract Asteraceae are among the most abundant angiosperm families on oceanic islands. The reproductive biology of Asteraceae is reviewed and the attributes of the family contributing to their success on islands are discussed. Asteraceae are effective dispersers (the small, single-seeded fruits are moved great distances by wind and birds), and colonization is most likely limited by establishment. The pollinators of the colonizing ancestors rarely disperse with them to islands. Divorced from the pollinators of their ancestral habitats, the capitulum of aggregated small, shallow flowers typical of Asteraceae facilitates pollination of colonizers by various novel biotic visitors and by wind. Self-compatible (SC) colonizing ancestors are common, permitting establishment of sexual populations from one or few propagules. However, several large insular lineages of Asteraceae originated from functionally self-incompatible (SI) colonizers that may have also possessed the capacity to set some self-seed. Establishment may also be facilitated by dominance relationships among S-alleles in the sporophytic SI (SSI) system of Asteraceae, increasing cross-compatibility within small populations. Factors potentially promoting outcrossing in SC Asteraceae are: gynomonoecy, with temporal separation of receptive pistillate ray florets and pollen presentation in the hermaphroditic disc florets of a capitulum (interfloral protogyny); and intrafloral protandry where pollen presentation occurs before stigmata become receptive. Dioecy, gynodioecy, and monoecy are infrequent sexual systems in insular Asteraceae. Multiple paternity is similar in island composites to other Asteraceae, suggesting that neither compatible mates nor pollinators are typically limiting. Additional studies, particularly with genomic markers, are needed for more refined insights into mating systems and paternity in island Asteraceae as these results have important conservation implications.
      PubDate: 2023-12-14
      DOI: 10.1007/s12229-023-09295-9
       
  • Cretaceous-Paleocene Patagonian Spore and Pollen Clumps: New Findings,
           Alternative Explanations, and Opened Questions

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      Abstract: Abstract There are few studies focused on spore and pollen clumps in paleopalynological samples, and these are only reports from the Northern Hemisphere. These aggregates may be of animal or floral origin. The goal of this contribution is to provide the first detailed study of spore and pollen clumps from the Southern Hemisphere, and to discuss their possible origin, botanical affinities, and pollination modes, based on their morphological characteristics, preservation and comparison with putative living representatives. Three fern spore clumps and 18 angiosperm pollen clumps were recognized in Maastrichtian-Danian La Colonia Formation sediments that outcrop at Chubut Province, Patagonia, Argentina. Most clumps are monospecific and composed of undamaged elements but some of them have two types of spore/pollen with corroded and/or fragmented exines. These findings represent the most diverse and abundant record of fern and angiosperm clumps from the Late Cretaceous and early Paleocene so far known from South America and the Southern Hemisphere. These results are indicative of the need for comprehensive large-scale studies on pollination of modern taxa and careful processing of palynological samples to lessen the already large bias in paleopalynological interpretations. The paucity of information on clumps in the fossil record has impaired our comprehension of dispersion/pollination in deep time.
      PubDate: 2023-12-07
      DOI: 10.1007/s12229-023-09297-7
       
  • A Review of Taxonomic Concepts and Species Delimitation in Cycadales

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      Abstract: Abstract Taxonomic data is essential to advance the discovery and description of biodiversity, as well as the study of evolutionary processes. Emerging large-scale datasets and new methods of analysis have provided different approaches to describe biodiversity. Here, we present a review of the taxonomic history in Cycadales including an analysis of historical taxonomic concepts and approaches used for species delimitation. We examine the trends in the publication of new species following taxonomic works in books, journals and horticultural catalogues, monographic projects and floras where species treatments were published. In addition, we review the studies concerning species delimitations using the literature available in scientific journals appearing in the database ISI Web of Knowledge. The approaches used were discussed throughout all research focused on empirical and theoretical considerations in each study. We review the current state of the studies on causal processes that have given rise to the currently recognized diversity. The trend shows that taxonomic work on discovery and description of species has been intensive in the last 40 years culminating in 38.8% of binomials published. As a result, we consider the relevance of the monographs and floras for identification of species for other biological disciplines and the content of these contributions is compared and discussed. A total of six criteria (diagnosability, phenetic, phylogenetic, genotypic cluster, niche specialization and coalescent) were detected from the following three approaches to species delimitation within Cycadales: traditional, integrative taxonomy, and monophyletic. In all cases, the results from these species delimitations not only provided a taxonomic treatment or proposed a new species, but also supposedly clarified the other species involved as a result of the new taxonomic concept of the new species described. Most investigations of species delimitation used the traditional approach or a phenetic criteria. Finally, we discuss evolutionary studies on causal processes involved in cycad diversity. This is considered in the context of species delimitation as hypothesis testing for a successful evaluation of variation in both genetic and morphological understanding.
      PubDate: 2023-11-16
      DOI: 10.1007/s12229-023-09293-x
       
  • The Remarkable Diversity of Parasitic Flowering Plants in Colombia

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      Abstract: Abstract Parasitic plants have evolved independently in 12 Angiosperm orders. Nine of them (Boraginales, Cucurbitales, Ericales, Lamiales, Laurales, Malvales, Santalales, Solanales, and Zygophyllales) are represented in Colombia by 17 families, 44 genera and 246 species, including facultative (37) and obligate (187) hemiparasites, holoexoparasites (19) and holoendoparasites (3). Cladocolea coriacea (Loranthaceae) is reported for the first time in Colombia. One genus (Sanguisuga, Cytinaceae) and 69 species (28.04%) are endemic to the country. Endemism decreases with elevation, ranging from 26 species (37.68%) below 1000 m, to one species (1.44%) above 4000 m. Speciation in Aetanthus, Psittacanthus and Tristerix (Loranthaceae), Dendrophthora and Phoradendron (Viscaceae), and Castilleja and Neobartsia (Orobanchaceae) was likely prompted by the Andean uplift. The highest number of species (169) are found in the Andean Region, whereas the Orinoco Region contains the lowest number (29). Dry forests and thickets, and coastal vegetation of the Caribbean Region are the preferred ecosystems for Krameria (Krameriaceae), Sanguisuga, Acanthosyris (Cervantesiaceae), Maracanthus (Loranthaceae), Ximenia (Ximeniaceae), Lennoa (Ehretiaceae), and Anisantherina (Orobanchaceae). Orobanche minor, recently introduced to the country, is the only potential weed for crops between 2500 and 3200 m in the Eastern Cordillera. Convergent lifeforms include: the obligate, twining stem holoparasitic Cassytha (Lauraceae) and Cuscuta (Convolvulaceae); the root holoexoparasitic Sanguisuga, Mitrastemon (Mitrastemonaceae), all Balanophoraceae, and Lennoa; and the root obligate hemiparasitic Krameria, Gaiadendron (Loranthaceae), and all Cervantesiaceae, Opiliaceae, Schoepfiaceae, Strombosiaceae and Ximeniaceae. Holoendoparasitism occurs only in Apodanthaceae, whereas root facultative hemiparasitism is restricted to the Orobanchaceae.
      PubDate: 2023-11-08
      DOI: 10.1007/s12229-023-09294-w
       
  • Deforestation Impacts on Diversity of Orchids with Inference on the
           Conservation Initiatives: Malaysia Case Study

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      Abstract: Abstract Monitoring the impact of anthropogenic and naturogenic threats on orchid community through diversity, taxonomy and conservation studies is necessary. Reintroduction of these species to their natural habitat associates with their resilience, selection of suitable trees and sites for regeneration and restoration efforts, drives the conservation initiative. Upon obtaining an accurate estimate of the diversity for genetic resource conservation, integrative methods of classical morphological taxonomy, anatomy (micromorphology), and molecular genetics are crucial to solve the taxonomic uncertainty. Changes in microclimatic conditions and habitat structures are the key determinants of both epiphytic and terrestrial orchids assemblages following disturbance. Any assessments of biodiversity and ecosystem service must include variable forest types and management regimes to provide impartial views on the effect of forest and ecological disturbance on the orchid community. Accordingly, a plant-microbial ecology study should be included to study the extent of human-induced climatic variability towards the orchid diversification.
      PubDate: 2023-07-10
      DOI: 10.1007/s12229-023-09292-y
       
  • A Review of Breeding Systems in the Pineapple Family (Bromeliaceae,
           Poales)

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      Abstract: Abstract Breeding systems play an essential role in plant sexual reproduction and influence speciation and extinction processes. However, our understanding of the breeding systems for particular neotropical angiosperm families is inadequate. The Pineapple family (Bromeliaceae) is one of the few indigenous and highly diverse plant lineages native to the American Continent and is a resource for the ornamental plant industry. Bromeliads have a remarkable history of adaptive radiation, yet the role of breeding systems in their evolution and ecology is still unknown. This review aims to establish the current state of knowledge on breeding systems in Bromeliaceae by identifying general patterns, data limitations, and information gaps. We compiled data on self-compatibility (SC), autonomous self-fertilization (selfing), and apomixis based on a thorough review of the scientific literature from 1990 to 2020. The final database included 177 entries, which represented 26 genera and 152 species (4.1% of the family). Two-thirds of the studies were conducted on species from highly diverse genera: Aechmea, Pitcairnia, Tillandsia, and Vriesea. Bromeliaceae exhibit a wide variety of breeding systems (SC and selfing). Subfamilies Pitcairnioideae (sensu stricto) and Tillandsioideae had higher values of SC and selfing, although some of the most investigated genera in each subfamily exhibited contradictory patterns and data for subfamilies considered ancestral were absent. Complete apomixis was rare, but it was more prevalent in Pitcairnioideae. The evolution of autofertility is likely the combined result of floral herkogamy as well as the species’ self-compatibility. Our present understanding of the evolutionary advantages of selfing in Bromeliaceae is limited and deserves further investigation.
      PubDate: 2023-07-05
      DOI: 10.1007/s12229-023-09290-0
       
  • Calculating the Growth of Vascular Cambium in Woody Plants as the
           Cylindrical Surface

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      Abstract: Abstract The expansion of the vascular cambium cylinder in the stem of woody plants has been modeled many times, using different approaches and focusing on contributions of different cell events (cell divisions, intrusive cell growth and symplastic cell growth). Although there are many case studies in the literature, a universal model is still lacking. Therefore, the aim of this study is to estimate the quantitative changes in the contribution of symplastic growth of a single cambial cell (a sector of the cambial circumference) to the expansion of the vascular cambium cylinder, as the stem increases in girth. The proposed calculations, using the number π, and considering the actual dimensions of cambial cells, show (a) that the average symplastic increase per one initial cell in the circumferential direction decreases exponentially with the enlargement of cambial circumference, and (b) that the significant difference in the magnitude of symplastic increment of a single initial in the radial and circumferential directions increases proportionally to the increase in the circumference of the cambial cylinder. The proposed mathematical formula helps to understand the general rules that govern the gradual increase of the vascular cambium cylinder during wood production and would further facilitate the description/modeling of stem growth and formation of wood structural patterns.
      PubDate: 2023-06-29
      DOI: 10.1007/s12229-023-09291-z
       
  • Cytogenetic Diversity in Scilloideae (Asparagaceae): a Comprehensive
           Recollection and Exploration of Karyo-Evolutionary Trends

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      Abstract: Abstract The family Asparagaceae (subfamily Scilloideae, APG III, Botanical Journal of the Linnean Society 161:105–121, 2009) constitutes approximately 1000 species in about 33 genera of deciduous bulbous geophytes with long history of medicinal utilities. However, satisfactory delimitation of genera as well as species boundaries within most genera still remain doubtful for the lack of reliable discriminating characters with morphological traits showing continuous variation. Detailed cytogenetic characterization and thorough comparative analysis is still scanty in this group and thus can provide supportive taxonomical data besides serving as basis for further genomic studies. This group showcases diverse cytogenetic characters studied across 4 tribes: Hyacintheae, Urgineeae, Ornithogaleae and Oziroëeae. Cytogenetic investigation has not yet been initiated in more than 50% of accepted species, studies mostly limited to chromosome counts or conventional karyotyping methods. Somatic chromosome counts have been reported in around 378 species varying from 2n = 4 in Ornithogaleae to 2n = 150 in Hyacintheae and the basic ancestral chromosome number of x = 10 is proposed for the subfamily and secondary base numbers presumed to arise by descending dysploidy followed by polyploidization leading to such variation. Meiotic analysis and genome size estimation is reported in very few species and requires further investigation. Karyotype in most taxa exhibits a general pattern characterized by asymmetry with predominance of acrocentric chromosomes. Fluorochrome banding by CMA/DAPI staining and FISH although reported in very few species revealed characteristic patterns in different taxa, with potential taxonomic utilities. Thus, comparison of compiled data depicted some patterns of chromosomal diversity within the subfamily Scilloideae but study of more taxa is required for prediction of trends.
      PubDate: 2023-06-01
      DOI: 10.1007/s12229-022-09279-1
       
  • Global Plant Ecology of Tropical Ultramafic Ecosystems

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      Abstract: Abstract Ultramafic ecosystems are renowned for high endemism and habitat specialization. However, most of our understanding of ultramafic plant ecology comes from Mediterranean and temperate climes, raising questions about the generalizability of plant responses to ultramafic soils. This is especially apparent in tropical ultramafic ecosystems which exhibit a wide range of endemism and differentiation between ultramafic and adjacent non-ultramafic soils. Our objectives were two-fold: 1) synthesize our understanding of tropical ultramafic plant ecology, paying particular attention to generalities that may explain variation in endemism and habitat specialization among tropical ultramafic ecosystems; and 2) define an interdisciplinary research agenda using tropical ultramafic ecosystems as a macroecological model. We demonstrate that tropical ultramafic floras are diverse and variable in plant form and function due to the interactive effects of biogeography, climate, and edaphic properties. The variable rates of endemism, specialization, and stress tolerance traits across tropical ultramafic ecosystems have implications for the management and conservation of these diverse systems. Resumen. Los ecosistemas ultramáficos son reconocidos por su endemismo y especialización del hábitat. Sin embargo, la mayor parte de nuestra comprensión de la ecología vegetal ultramáfica proviene de climas mediterráneos y templados, lo que plantea dudas sobre la generalización de las respuestas de las plantas a los suelos ultramáficos. Esto es especialmente evidente en los ecosistemas tropicales ultramáficos que exhiben una amplia gama de endemismo y diferenciación entre suelos tropicales ultramáficos y no ultramáficos adyacentes. Nosotros teníamos dos objetivos: 1) sintetizar nuestra comprensión actual de la ecología de las plantas tropicales ultramáficas, prestando especial atención a las generalidades que pueden explicar la variación en el endemismo y la especialización del hábitat entre los ecosistemas tropicales ultramáficos; y 2) definir una agenda de investigación interdisciplinaria utilizando ecosistemas ultramáficos tropicales como modelo macroecológico. Las floras tropicales ultramáficas son diversas y variables en la forma y función de las plantas debido a los efectos interactivos de la biogeografía, el clima y las propiedades edáficas. Las tasas variables de endemismo, especialización y rasgos de tolerancia al estrés en los ecosistemas tropicales ultramáficos tienen implicaciones para el manejo y conservación de estos diversos sistemas.
      PubDate: 2023-06-01
      DOI: 10.1007/s12229-022-09278-2
       
  • Critical Factors Responsible for Potato Tuberization

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      Abstract: Abstract The potato (Solanum tuberosum) is the fourth most cultivated and consumed crop worldwide. The swelled stolonic region of the plant is economically important due to its considerable quantities of carbohydrates plus modest quantities of minerals and vitamins. Tuber formation is governed by various external and internal factors including light, oxygen concentration, photosynthate availability, phytochromes, transcription factors, and metabolite availability. This review updates and expands upon our current knowledge regarding the involvement of these variables in the tuberization process. Tuber formation starts at the onset of the supportive season under optimal light conditions where phytochromes in leaves sense the signal. The transmittance of the signal results in photosynthate accumulation, phloem loading with sucrose, phloem transport and unloading at the stolonic region, sucrose entry into the tuber cell, and conversion of sucrose to starch, all under the direction of regulatory enzymes. Several genes are associated with tuberization and regulated either positively or negatively. During the course of these cellular micro-reactions, a very fine stolonic tip will ultimately be transformed into a fully matured potato tuber. Tuber formation can be increased by genetic modifications, that further improve tuber yield and quality.
      PubDate: 2023-05-05
      DOI: 10.1007/s12229-023-09289-7
       
  • Seed Dispersal in Pines (Pinus)

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      Abstract: Abstract Pines (n = 121 species) are important elements of forest ecosystems. They are economically and ecologically valuable and are often at the center of efforts to manage forests to reduce the risk of wildland fires. The pattern and process of pine seed dispersal and seedling establishment have important implications for maintaining healthy forests. 75% of pines are dispersed by wind, and 25% are dispersed by scatter-hoarding birds and rodents. Among the wind-dispersed pines, there are about 20 species that attract the attention of seed-caching animals that gather seeds and cache them in soil, so these species are dispersed by a combination of wind and animals. Animal-dispersed pines often occur in semi-arid ecosystems. The seeds cached by animals are a dynamic resource. Animals pilfer each other’s caches, move them to new sites and recache them. Some seed reside in dozens of different cache sites between seed maturation and seed germination. Many pines are adapted to fire. This involves serotinous cones (about 24 species), which are dense, woody, and lignified and remain closed at maturity. Serotiny establishes a canopy seed bank that can persist for several decades. Shortly after fire, these cones open and shed seeds onto the burned landscape. Pines often mast, producing large crops of seeds at intervals of several years. These large cone crops satiate the appetites of specialist seed predators, resulting in increased seedling establishment and also increases the effectiveness of seed dispersal. In the past, pines have responded to climate change by shifting geographic ranges, and some pines appear to be responding to warming climates in a similar way.
      PubDate: 2023-03-22
      DOI: 10.1007/s12229-023-09288-8
       
  • Richness, Endemism and Floristic Affinities of the Palms of Mexico

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      Abstract: Abstract The Arecaceae family is ecologically, ethnobotanically and floristically important in Mexico; however, an updated review is required. Here, we investigate the species richness, floristic geographic affinities, and conservation status of the native Mexican palm flora. We constructed a database of the distribution of species by state, performed a cluster analysis, and identified threatened species according to the Mexican red list (NOM-ECOL-059). We found that Mexico hosts 3 subfamilies, 10 tribes, 21 genera, and 99 species of palms (37.7% of which are endemic). Compred to other families, Arecaceae presents intermediate diversity, in which 62.7% of the species are considerd rare. Arecaceae is one of the most threatened families in Mexico. Five large regions are segregated according to species composition (similarity < 8%). Western Mexico exclusively presents Nearctic elements; the tribes Chamaedoreeae, Sabaleae, and Trachycarpeae are the most diversified. The genera Brahea, Sabal and Washingtonia prefer calcareous substrates, and are responsible for the distinctiveness of the Mexican palm flora. The species assemblage has South American and Laurasian origins. The remarkable species richness of Mexican palms is due to the speciation of these Chamaedoreeae, Sabaleae and Trachycarpeae tribes. The greatest species richness is presented in the South-Southeast region of the country (CAM, Q.ROO, YUC, CHIS, OAX, VER, TAB, PUE). Given the importance of palms for humans and the threatened status of the family in general, a more comprehensive analysis of the taxonomy and systematics of the family is required in Mexico, as well as to motivate the continued scientific study of these key plants. Specifically, more studies are required of the ecology, conservation, and sustainable management of the family in the southern states such as Chiapas, Oaxaca and Veracruz, which present the highest species richness, but also face rapid anthropogenic transformation.
      PubDate: 2022-09-09
      DOI: 10.1007/s12229-022-09284-4
       
  • Development, Diversity and Dynamics of Plant Architecture in Utricularia
           subgenus Polypompholyx – Towards Understanding Evolutionary Processes in
           the Lentibulariaceae

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      Abstract: Abstract To uncover the nature of various kinds of stolons of Utricularia subgenus Polypompholyx (Lentibulariaceae) we studied branching of stolons by scanning electron microscopy, statistically investigated correlations of stolon types and other traits across 56 species, and evaluated seedling development and process morphological aspects. Some results were compared to the sister genera Pinguicula and Genlisea. A key to nine stolon types in Polypompholyx is provided. Predominant stolon types were rhizoids, runner stolons with rhizoids on nodes, and runner stolons without rhizoids on nodes but with bladders on internodes. Stolon types were taxonomically relevant and correlated to the distribution/climate. They obviously diverged with speciation events in Australia. Examined seedlings of Genlisea and Polypompholyx showed similar developmental patterns. Stolons were homologous to traps and leaves. Selected subterranean organs contained specific but similar process combinations of roots, shoots and/or leaves. We assume the Genlisea-Utricularia ancestor trap included processes of a Pinguicula root and leaf.
      PubDate: 2022-08-12
      DOI: 10.1007/s12229-022-09283-5
       
 
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  Subjects -> ANIMAL WELFARE (Total: 103 journals)
Showing 1 - 22 of 22 Journals sorted by number of followers
Animal Welfare     Open Access   (Followers: 32)
Journal of Veterinary Internal Medicine     Open Access   (Followers: 32)
Animal Nutrition     Open Access   (Followers: 26)
Ethics and Social Welfare     Hybrid Journal   (Followers: 24)
Journal of Applied Animal Welfare Science     Hybrid Journal   (Followers: 22)
Animal Cognition     Hybrid Journal   (Followers: 21)
Journal of Comparative Social Welfare     Hybrid Journal   (Followers: 16)
European Journal of Wildlife Research     Hybrid Journal   (Followers: 14)
Society and Animals     Hybrid Journal   (Followers: 14)
Animals     Open Access   (Followers: 14)
Social Choice and Welfare     Hybrid Journal   (Followers: 12)
Wildfowl     Open Access   (Followers: 12)
Acrocephalus     Open Access   (Followers: 10)
Advances in Animal Biosciences     Full-text available via subscription   (Followers: 10)
Veterinary Clinical Pathology     Hybrid Journal   (Followers: 9)
Asian Journal of Animal and Veterinary Advances     Open Access   (Followers: 8)
Australian Mammalogy     Hybrid Journal   (Followers: 8)
Animal Studies Journal     Open Access   (Followers: 8)
Journal of Research in Forestry, Wildlife and Environment     Open Access   (Followers: 8)
Animal - Science Proceedings     Full-text available via subscription   (Followers: 7)
Canadian Journal of Animal Science     Hybrid Journal   (Followers: 6)
Alternatives to Laboratory Animals     Full-text available via subscription   (Followers: 6)
Proceedings of the Vertebrate Pest Conference     Open Access   (Followers: 6)
Animal Diseases     Open Access   (Followers: 6)
Animal Research International     Full-text available via subscription   (Followers: 5)
Journal of Applied Animal Research     Open Access   (Followers: 5)
Derecho Animal. Forum of Animal Law Studies     Open Access   (Followers: 5)
British Poultry Abstracts     Hybrid Journal   (Followers: 4)
Asian Journal of Animal Sciences     Open Access   (Followers: 4)
Asian Journal of Cell Biology     Open Access   (Followers: 4)
Natural History Sciences     Open Access   (Followers: 4)
Animal Frontiers     Hybrid Journal   (Followers: 4)
Botanical Review     Hybrid Journal   (Followers: 3)
Journal of Animal Science and Biotechnology     Open Access   (Followers: 3)
Bulletin of Animal Health and Production in Africa     Full-text available via subscription   (Followers: 3)
Nutrición Animal Tropical     Open Access   (Followers: 3)
Agrivet : Jurnal Ilmu-Ilmu Pertanian dan Peternakan / Journal of Agricultural Sciences and Veteriner)     Open Access   (Followers: 3)
Journal of Pest Science     Hybrid Journal   (Followers: 2)
Research Journal of Parasitology     Open Access   (Followers: 2)
Between the Species     Open Access   (Followers: 2)
Pastoralism : Research, Policy and Practice     Open Access   (Followers: 2)
International Journal for Parasitology : Parasites and Wildlife     Open Access   (Followers: 2)
Nigerian Journal of Animal Science     Full-text available via subscription   (Followers: 2)
Revista Colombiana de Ciencias Pecuarias (Colombian journal of animal science and veterinary medicine)     Open Access   (Followers: 2)
International Journal of Health, Animal Science and Food Safety     Open Access   (Followers: 2)
Journal of Anatolian Environmental and Animal Sciences     Open Access   (Followers: 2)
Advances in Botanical Research     Full-text available via subscription   (Followers: 1)
Revue de primatologie     Open Access   (Followers: 1)
Archivos de Medicina Veterinaria     Open Access   (Followers: 1)
Australian Holstein Journal     Full-text available via subscription   (Followers: 1)
Italian Journal of Animal Science     Open Access   (Followers: 1)
Online Journal of Animal and Feed Research     Open Access   (Followers: 1)
Global Journal of Animal Scientific Research     Open Access   (Followers: 1)
Buletin Peternakan : Bulletin of Animal Science     Open Access   (Followers: 1)
Journal of Threatened Taxa     Open Access   (Followers: 1)
Applied Animal Science     Hybrid Journal   (Followers: 1)
Journal of Veterinary Science & Medicine     Open Access   (Followers: 1)
Veterinary and Animal Science     Open Access   (Followers: 1)
Archiva Zootehnica     Open Access   (Followers: 1)
Journal of Zoological and Botanical Gardens     Open Access   (Followers: 1)
Human-Wildlife Interactions     Open Access  
Turkish Journal of Veterinary Research     Open Access  
Revista Colombiana de Ciencia Animal     Open Access  
People and Animals : The International Journal of Research and Practice     Open Access  
Hayvansal Üretim     Open Access  
Jurnal Ilmu-Ilmu Peternakan     Open Access  
Translational Animal Science     Open Access  
RUDN Journal of Agronomy and Animal Industries     Open Access  
Spei Domus     Open Access  
Revista de Salud Animal     Open Access  

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