 Subjects -> CONSERVATION (Total: 128 journals)
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- ORX volume 57 issue 5 Cover and Front matter
Pages: 1 - 2
PubDate: 2023-09-08
DOI: 10.1017/S0030605323001205
- ORX volume 57 issue 5 Cover and Back matter
Pages: 1 - 2
PubDate: 2023-09-08
DOI: 10.1017/S0030605323001217
- Assessment, planning and action for species conservation
Authors: Rodriguez; Jon Paul, Fisher, Martin
Pages: 545 - 546
PubDate: 2023-09-08
DOI: 10.1017/S0030605323001102
- Briefly
Pages: 547 - 552
PubDate: 2023-09-08
DOI: 10.1017/S0030605323001114
- Two Centers for Species Survival launch collaborative conservation
programmes
Authors: Alvarez-Clare; Silvia, Mileham, Kira, Rodríguez, Jon Paul, Knapp, Charles R.
Pages: 553 - 553
PubDate: 2023-09-08
DOI: 10.1017/S0030605323000960
- Ten-year update of IUCN Red List assessments for tunas, mackerels, and
billfishes
Authors: Collette; Bruce B., Polidoro, Beth, Shiffman, David, Kemppinen, Krista
Pages: 553 - 554
PubDate: 2023-09-08
DOI: 10.1017/S0030605323000856
- Sustainable Use and Livelihoods Specialist Group launches its Species Use
Database
Authors: Hoffmann; Rachel, Roe, Dilys
Pages: 554 - 554
PubDate: 2023-09-08
DOI: 10.1017/S0030605323000820
- IUCN launches Behaviour Change Task Force
Authors: Veríssimo; Diogo, Pinho, Isa
Pages: 555 - 555
PubDate: 2023-09-08
DOI: 10.1017/S0030605323000819
- New toolkit for Nature-Positive Enterprise development
Authors: Hughes; Vivian, Amarnath, Mrunmayee, Perkins, Rhona, Mohanan, Kiran
Pages: 555 - 556
PubDate: 2023-09-08
DOI: 10.1017/S0030605323000844
- The Whitley Awards 2023
Authors: Law; Janice
Pages: 556 - 556
PubDate: 2023-09-08
DOI: 10.1017/S0030605323000649
- Another Indonesian songbird on the brink of extinction: is it too late for
the Kangean shama'
Authors: Berryman; Alex J.
Pages: 556 - 557
PubDate: 2023-09-08
DOI: 10.1017/S0030605323000996
- Reintroduction of adult Orinoco crocodiles: a crucial step towards the
species recovery
Authors: Vargas-Ramírez; Mario, Forero-Medina, Germán, Moreno Torres, Carlos, Balaguera-Reina, Sergio A.
Pages: 557 - 558
PubDate: 2023-09-08
DOI: 10.1017/S0030605323000613
- Developing a national conservation action plan for threatened trees of
Guinea
Authors: Couch; Charlotte, Magassouba, Sekou, Kante, Mamadou Saliou
Pages: 558 - 558
PubDate: 2023-09-08
DOI: 10.1017/S0030605323000832
- A new record of the Critically Endangered tree Dipterocarpus littoralis
discovered from social media
Authors: Primananda; Enggal, Robiansyah, Iyan
Pages: 558 - 559
PubDate: 2023-09-08
DOI: 10.1017/S0030605323000601
- Successful ex situ conservation of Nymphaea candida
Authors: Liu; Huiliang, Zhang, Yuanming, Guan, Kaiyun, Zhou, Xinyu
Pages: 559 - 559
PubDate: 2023-09-08
DOI: 10.1017/S0030605323000650
- Snow Leopard Network: 20 years of collaboration among practitioners
Authors: Alexander; Justine Shanti, Johansson, Örjan, Xiao, Lingyun, Chetri, Madhu, Lkhagvajav, Purevjav, Karumbaya, Rakhee, Wright, Belinda, Modaqiq, Wali, Lovari, Sandro
Pages: 559 - 560
PubDate: 2023-09-08
DOI: 10.1017/S0030605323000881
- High readership on academic social platforms could poorly reflect
conservation interest
Authors: Meijaard; Erik, Moqanaki, Ehsan
Pages: 578 - 580
Abstract: Social media are being used increasingly by the science community to share research output with a wide audience and to seek feedback. They are also used as alternatives to the traditional citation-based assessment of the impacts of scientific products and even to inform employment decisions in academia. One of these media platforms, ResearchGate, is a popular application with more than 20 million users who share and discuss scientific products. We report on a remarkably high level of interest in one of our publications on ResearchGate about the Eurasian wild pig Sus scrofa in Iran, a poorly studied species in a conservation priority region. The number of reads of our publication was c. 1,500 times higher than the mean per publication for scientists from a range of American and Asian universities. Comparison with other ResearchGate statistics and reader feedback indicates these reads resulted from data-gathering processes unrelated to the details of the research. Although this raises questions regarding the ability of ResearchGate and similar platforms to measure research interest and impacts reliably, we use the popularity of our article as an opportunity to advocate for conservation research in an understudied region and on an understudied species.
PubDate: 2023-05-09
DOI: 10.1017/S0030605323000030
- New records of the Endangered Helan Shan pika Ochotona argentata, with
notes on its natural history and conservation
Authors: Lambert; Joseph P., Li, Jingyao, Li, Yibin, Hou, Xuehan, Shi, Kun
Pages: 581 - 584
Abstract: The Helan Shan pika Ochotona argentata is an Endangered pika endemic to Ningxia Helan Shan National Nature Reserve in China. Little is known about the species, including regarding its population status, distribution, habitat requirements and even basic natural history. We conducted camera trapping in the Reserve during 13 January 2020–25 January 2022 and obtained two new records for this species. These, combined with five other new records obtained during the monitoring programme in the Reserve, represent a significant increase in the known range of the species and more than double the species’ known extent of occurrence from 107 to 223 km2. These records also provide the first evidence that this species is active both nocturnally and diurnally. However, this range increase does not alter the Endangered status of the pika, and the pika was not observed within its previously known range; future research should involve intensive camera trapping in the Reserve to ascertain whether this is a result of local extirpation, habitat loss or fragmentation or under-sampling on our part. Studies should also incorporate techniques used for other alpine pika species to collect baseline data on habitat use, population size and behaviour to determine the potential response of the Helan Shan pika to present and future threats.
PubDate: 2023-08-08
DOI: 10.1017/S003060532300056X
- Is the hangul Cervus hanglu hanglu in Kashmir drifting towards extinction'
Evidence from 19 years of monitoring
Authors: Ahmad; Khursheed, Mirelli, Marco, Charoo, Samina, Nigam, Parag, Qureshi, Qamar, Naqash, Rashid Y., Focardi, Stefano
Pages: 585 - 591
Abstract: The Tarim red deer Cervus hanglu has been recently recognized as a separate deer species with populations in China, Central Asia and Kashmir. These populations are few, isolated and at risk of extinction. The documented range of the Kashmir population of the hangul, now recognized as Cervus hanglu hanglu, is restricted to c. 808 km2 and comprises < 200 individuals, confined mainly to the 141 km2 Dachigam National Park. A few relict herds inhabit the surrounding landscape. Here we analyse the results of almost 20 years of population monitoring (January 2001–March 2020). We found that this population is unable to increase despite full protection within Dachigam National Park. We performed a population viability analysis using both deterministic and stochastic simulations and found that further population decrease is likely. We recommend the use of improved monitoring methods to investigate the population dynamics of the hangul and the implementation of measures to reduce the risk of extinction faced by this small population. Science-based conservation policies, including ex situ conservation and reintroduction programmes, will be required to increase the hangul population size and range.
PubDate: 2023-08-31
DOI: 10.1017/S0030605323000686
- Predicting suitable habitat for the Critically Endangered African wild ass
Equus africanus in the Danakil Desert of Eritrea
Authors: Tesfai; Redae T., Parrini, Francesca, Moehlman, Patricia D., Young, Nicholas E., Evangelista, Paul H.
Pages: 592 - 599
Abstract: The Critically Endangered African wild ass Equus africanus is one of the most threatened equids, with fewer than 400 individuals persisting in the Danakil Desert (Eritrea), and fewer than 600 globally. To effectively conserve the species, it is essential to determine the extent of available suitable habitats and understand the environmental factors that most influence its current distribution. During 2016–2019 we observed African wild asses, recorded their locations during both the wet and dry seasons and analysed the bioclimatic data and topography using the maximum entropy species distribution model. Distance from water sources and precipitation of the driest month were the top predictors of suitable habitat for the dry season, whereas seasonal temperature variability and precipitation during the warmest quarter were the top predictors for the wet season. Model performances were high, with area under the curve values of 0.97 and 0.98 for the dry and wet seasons, respectively. In the Danakil Desert of Eritrea, the extent of optimal habitat for African wild asses is estimated to be 130 km2 in the dry season and 739 km2 in the wet season, with a potential range of 11,000 km2 for both seasons. Our model results also indicate that in the dry season 89 km2 of the Messir Plateau is optimal habitat, and the entire plateau area of 124 km2 provides optimal habitat during the wet season. These findings provide wildlife management authorities with substantive information and rationale for the establishment of a protected area on the Messir Plateau for African wild asses in Eritrea.
PubDate: 2023-07-04
DOI: 10.1017/S0030605323000297
- The potential conservation value of anthropogenically modified habitat for
the Endangered moor macaque Macaca maura in Sulawesi, Indonesia
Authors: Riley; Erin P., Albani, Alessandro, Zak, Alison A., Germani, Lavinia, Rothman, Jessica M., Carosi, Monica, Ngakan, Putu Oka
Pages: 600 - 610
Abstract: Human-induced land-use change has resulted in substantial loss and degradation of habitat for forest-dwelling wildlife. The moor macaque Macaca maura, an Endangered primate endemic to Sulawesi, Indonesia, has been observed in a wide array of habitats, including heavily modified areas, but little is known about the quality of these habitats. Here we compared the habitat quality of two areas occupied by moor macaque populations: a previously human-modified karst forest now located within a national park and a heavily modified forest located in an unprotected area. We assessed habitat quality by measuring specific indicators of potential food availability derived from vegetation data and quantified the nutritional environment based on macronutrient analysis of fruit samples collected at the two sites. Although the species richness, diversity and overall stem density of macaque food trees were greater in the protected area forest, total basal area and mean diameter at breast height were greater in the heavily modified forest. Mean metabolizable energy concentrations of fruits eaten by macaques were similar between forests, as were the proportions of protein, lipids and total non-structural carbohydrates. These results provide further support for the notion that heavily modified habitats should not be overlooked for their potential conservation value. To further augment their value, conservation efforts should focus on forest restoration, specifically the planting of fast-growing species that are utilized by both wildlife and people.
PubDate: 2023-05-19
DOI: 10.1017/S003060532200151X
- Cheetahs persist in the wild in the remote Awdal region of Somaliland
Authors: Marker; Laurie, Connolly, Erin, Saed, Abdinasir Hussein, Reasoner, Emma, Aden, Khadar Yasin, Cristescu, Bogdan
Pages: 611 - 614
Abstract: Although cheetahs Acinonyx jubatus were once widespread in the Horn of Africa, their presence in Somaliland has not been confirmed since 2010, and they have been presumed extirpated in recent years. During 2021–2022 the Cheetah Conservation Fund and the Ministry of Environment and Climate Change in Somaliland carried out two rapid surveys in the Awdal region of western Somaliland to investigate the status of the cheetah in this area. The team collected socio-ecological data from 26 villages for a total of 13 days. In both years people from most villages reported sightings of cheetahs, and the team also received multiple reports of predation on small livestock (sheep and goats) by cheetahs. We also investigated two reports of recent cheetah presence. This led to finding a set of confirmed cheetah tracks, which we followed for> 250 m, and two large feline scrapes, both approximately the size expected of a cheetah. In 2020 and 2022 we received direct evidence of cheetah presence in the form of mature cheetah carcasses. In the first instance the cheetah was reported as having been shot in defence of livestock, and in the second instance two cheetahs were apparently poison-baited. Both reports were accompanied by photographic records. This combination of social and ecological data means that we can confirm the recent presence of wild cheetahs in western Somaliland. We will now prioritize work with local communities to understand and mitigate human–cheetah conflict and continue to investigate the distribution of cheetahs throughout Somaliland.
PubDate: 2023-02-02
DOI: 10.1017/S0030605322001442
- Human–wildlife conflicts in Patagonia: ranchers’ perceptions of
guanaco Lama guanicoe abundance
Authors: Flores; Celina, Lichtenstein, Gabriela, Schiavini, Adrián
Pages: 615 - 625
Abstract: Conflicts between people and wildlife have become widespread as people move to areas previously home to wildlife and as wild populations recover. In Patagonia, one of the main threats to guanaco Lama guanicoe conservation is the animosity of sheep ranchers towards the species. As key stakeholders in guanaco conservation we assessed ranchers’ perceptions regarding guanaco abundance in Isla Grande de Tierra del Fuego, Argentina. We contrasted these perceptions with estimated guanaco abundance and explored the socio-ecological factors influencing perceptions and how perceptions of overabundance are rooted in contextual factors rather than actual abundance. We performed semi-structured interviews with ranchers from Isla Grande and estimated guanaco abundance independently using density surface modelling. Ranchers were divided into three categories depending on their perception of guanaco abundance: ‘too many’, ‘many’ and ‘normal’. Those in the ‘many’ and ‘normal’ categories perceived guanaco abundance as being similar to actual abundance, whereas those in the category ‘too many' overestimated guanaco abundance. The perceived issues affecting livestock production varied between categories, although feral dogs emerged as the main problem. Negative perceptions of the guanaco stemmed from ranchers' beliefs that the species reduces forage availability for livestock, and from their disappointment about the government's handling of concerns regarding livestock production. Greater understanding and integration of the human dimension in conservation are needed to design more inclusive and resilient management plans.
PubDate: 2023-06-05
DOI: 10.1017/S0030605322001508
- From terra incognita to hotspot: the largest South Pacific green turtle
nesting population in the forgotten reefs of New Caledonia
Authors: Fretey; Jacques, Read, Tyffen C., Carron, Léa, Fontfreyde, Christophe, Fourdrain, Aurélie, Kerandel, Julie-Anne, Liardet, Vincent, Oremus, Marc, Reix-Tronquet, Morgane, Girondot, Marc
Pages: 626 - 636
Abstract: The green turtle Chelonia mydas is a large marine turtle present in tropical and subtropical seas of the Atlantic, Pacific and Indian Oceans. It is categorized as Endangered on the IUCN Red List based on the trend of nesting populations at 32 sites, of which only three are in the Pacific Ocean. New Caledonia is a sui generis overseas territory of France in the south-west Pacific Ocean c. 1,210 km east of Australia. The presence of green turtles in New Caledonian waters is known, although the main nesting sites are far from the main island, on remote uninhabited islands. Since 1988 field missions to these remote reefs, namely d'Entrecasteaux, Bellona and Chesterfield, have collected data to quantify the nesting of green turtles in New Caledonia. For the first time we analyse the data collected during these missions. D'Entrecasteaux, Bellona and Chesterfield Reefs host a large nesting colony of green turtles, with the upper credible estimate of nesting activities reaching 150,000 nesting tracks in some years. These numbers exceed the estimated number of green turtle activities in the Pacific. The trend of the number of nesting activities is stable and has the same relationship with the Southern Oscillation Index as observed at Australian nesting sites. Our recommendations for the French authorities are to continue monitoring these populations, collect new demographic parameters and ensure the protection of these remote reefs, which should be considered a national treasure for New Caledonia.
PubDate: 2023-08-01
DOI: 10.1017/S0030605323000108
- On the road to self-sustainability: reintroduced migratory European
northern bald ibises Geronticus eremita still need management
interventions for population viability
Authors: Drenske; Sinah, Radchuk, Viktoriia, Scherer, Cédric, Esterer, Corinna, Kowarik, Ingo, Fritz, Johannes, Kramer-Schadt, Stephanie
Pages: 637 - 648
Abstract: The northern bald ibis Geronticus eremita disappeared from Europe in the Middle Ages. Since 2003 a migratory population has been reintroduced in Central Europe. We conducted demographic analyses of the survival and reproduction of 384 northern bald ibises over a period of 12 years (2008–2019). These data also formed the basis for a population viability analysis simulating the possible future development of the northern bald ibis population under different scenarios. We analysed life stage-specific survival rates, rearing protocols and colonies, and the influence of stochastic catastrophic events and reinforcement translocations on population growth. Life stage-specific survival probabilities were 0.64–0.78. Forty-five per cent of the mature females reproduced, with a mean fecundity of 2.15 fledglings per nest. The complementary population viability analysis indicated that the Waldrappteam population is close to self-sustainability, with an estimated population growth rate of 0.95 and a 24% extinction probability within 50 years. Of the 326 future scenarios tested, 94% reached the criteria of extinction probabilities < 5% and population growth rates> 1. Stochastic catastrophic events had only a limited effect. Despite comparatively high survival and fecundity rates the population viability analysis indicated that to achieve self-sustainability the Waldrappteam population needs further translocations to support population growth and the implementation of effective measures against major mortality threats: illegal hunting in Italy and electrocution on unsecured power poles. The findings of this study are to be implemented as part of a second European LIFE project.
PubDate: 2023-02-13
DOI: 10.1017/S0030605322000540
- The mitochondrial DNA diversity of captive ruffed lemurs (Varecia spp.):
implications for conservation
Authors: Vega; Rodrigo, Hopper, Jane, Kitchener, Andrew C., Catinaud, Jérôme, Roullet, Delphine, Robsomanitrandrasana, Eric, Hollister, Jack D., Roos, Christian, King, Tony
Pages: 649 - 658
Abstract: Ruffed lemurs (Varecia variegata and Varecia rubra) are categorized as Critically Endangered on the IUCN Red List, and genetic studies are needed for assessing the conservation value of captive populations. Using 280 mitochondrial DNA (mtDNA) D-loop sequences, we studied the genetic diversity and structure of captive ruffed lemurs in Madagascar, Europe and North America. We found 10 new haplotypes: one from the European captive V. rubra population, three from captive V. variegata subcincta (one from Europe and two from Madagascar) and six from other captive V. variegata in Madagascar. We found low mtDNA genetic diversity in the European and North American captive populations of V. variegata. Several founder individuals shared the same mtDNA haplotype and therefore should not be assumed to be unrelated founders when making breeding recommendations. The captive population in Madagascar has high genetic diversity, including haplotypes not yet identified in wild populations. We determined the probable geographical provenance of founders of captive populations by comparison with previous studies; all reported haplotypes from captive ruffed lemurs were identical to or clustered with haplotypes from wild populations located north of the Mangoro River in Madagascar. Effective conservation strategies for wild populations, with potentially unidentified genetic diversity, should still be considered the priority for conserving ruffed lemurs. However, our results illustrate that the captive population in Madagascar has conservation value as a source of potential release stock for reintroduction or reinforcement projects and that cross-regional transfers within the global captive population could increase the genetic diversity and therefore the conservation value of each regional population.
PubDate: 2023-01-24
DOI: 10.1017/S0030605322000643
- Population parameters, performance and insights into factors influencing
the reproduction of the black rhinoceros Diceros bicornis in Namibia
Authors: Muntifering; Jeff R., Guerier, Abigail, Beytell, Piet, Stratford, Ken
Pages: 659 - 669
Abstract: Estimating the population parameters, performance and factors that influence reproduction from long-term, individual-based monitoring data is the gold standard for effective wildlife management and conservation. Yet this information is often difficult and costly to collect or inaccessible to managers. We synthesized a 20-year set of individual-based monitoring data from a subset of black rhinoceros Diceros bicornis subpopulations across a range of environmental conditions in Namibia. Our findings demonstrate that despite the relatively arid landscape in Namibia, the black rhinoceros metapopulation is performing well, measured by age at first reproduction, inter-birth interval, population growth and survivorship. Information-theoretic modelling revealed that a univariate model including normalized differential vegetative index had a greater influence upon age at first reproduction than population density. The inter-birth interval model set identified cumulative rainfall during the 15 months prior to the birth month as the top model, although the mean normalized differential vegetative index during the inter-birth interval was comparable. There was little evidence for density-dependence effects on reproduction. These findings suggest that although browse quality could have a greater impact on parameters spanning multiple years, shorter-term parameters could be more influenced by rainfall. Our analysis also revealed a synchronous pattern of conceptions occurring in the rainy season. Our study provides a set of population parameter estimates for Namibian black rhinoceros subpopulations and preliminary insights on factors driving their reproduction. These expand our collective knowledge of global black rhinoceros population dynamics and improve our confidence and capability to adaptively manage the black rhinoceros metapopulation of Namibia.
PubDate: 2023-03-15
DOI: 10.1017/S0030605322001065
- First record of the bush dog Speothos venaticus in the Atlantic Forest of
Minas Gerais, Brazil
Authors: Soto-Werschitz; Alejandra, Mandujano, Salvador, Passamani, Marcelo
Pages: 673 - 675
Abstract: The bush dog Speothos venaticus is a highly social Neotropical canid categorized globally on the IUCN Red List as Near Threatened, as Vulnerable in Brazil and as Critically Endangered in Minas Gerais, south-eastern Brazil, and the Atlantic Forest as a result of human pressure. As part of the monitoring of this mammal, during January 2019–March 2020 we placed one camera trap in each of 22 forest fragments in various landscapes in 15 municipalities in the state of Minas Gerais and one municipality in the state of Rio de Janeiro. On average, each camera trap was active for 4.3 months in each fragment. In a total of 2,856 trap-days we obtained the first record of S. venaticus in south-eastern Minas Gerais, c. 2 km from Serra de Santa Rita Mítzi Brandão Biological Reserve. This is the northernmost record of S. venaticus in the Atlantic Forest and highlights the importance of forest remnants in a fragmented landscape for this species. Further monitoring of this area should be a priority, to increase knowledge regarding the distribution of this species and for developing conservation strategies appropriate to these fragmented landscapes.
PubDate: 2023-06-08
DOI: 10.1017/S0030605323000236
- Updated estimates of biotic diversity and endemism for
Madagascar—revisited after 20 years – CORRIGENDUM
Authors: Goodman; Steven M.
Pages: 676 - 676
PubDate: 2023-09-08
DOI: 10.1017/S0030605323001084
- The potential conservation value of anthropogenically modified habitat for
the Endangered moor macaque Macaca maura in Sulawesi, Indonesia –
CORRIGENDUM
Authors: Riley; Erin P., Albani, Alessandro, Zak, Alison A., Germani, Lavinia, Rothman, Jessica M., Carosi, Monica, Ngakan, Putu Oka
Pages: 676 - 676
PubDate: 2023-09-08
DOI: 10.1017/S0030605323001072
- Cheetahs persist in the wild in the remote Awdal region of Somaliland
– CORRIGENDUM
Authors: Marker; Laurie, Connolly, Erin, Saed, Abdinasir Hussein, Reasoner, Emma, Aden, Khadar Yasin, Cristescu, Bogdan
Pages: 677 - 677
PubDate: 2023-09-08
DOI: 10.1017/S0030605323001096
- A Poison Like No Other: How Microplastics Corrupted Our Planet and Our
Bodies by Matt Simon (2022) 252 pp., Island Press, Washington, DC, USA.
ISBN 978-1-64283-235-8 (hbk), USD 30.00.
Authors: Norris; Catrin
Pages: 678 - 678
PubDate: 2023-09-08
DOI: 10.1017/S003060532300100X
- Hunting Wildlife in the Tropics and Subtropics by Julia E. Fa, Stephan M.
Funk and Robert Nasi (2022) 300 pp., Cambridge University Press,
Cambridge, UK. ISBN 978-1-107-54034-7 (pbk), GBP 39.99. Also available:
ISBN 978-1-316-33870-4 (e-book), open access,
doi.org/10.1017/9781316338704.
Authors: Mandisodza-Chikerema; Roseline L.
Pages: 678 - 679
PubDate: 2023-09-08
DOI: 10.1017/S0030605323000923
- Grants & opportunities
Pages: 680 - 680
PubDate: 2023-09-08
DOI: 10.1017/S0030605323001126
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