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- ENC volume 49 issue 2 Cover and Front matter
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Pages: 1 - 2
PubDate: 2022-05-12
DOI: 10.1017/S0376892922000170
- ENC volume 49 issue 2 Cover and Back matter
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Pages: 1 - 3
PubDate: 2022-05-12
DOI: 10.1017/S0376892922000182
- Google Trends data reveal a sharp trend: teeth and claws attract more
interest than feathers, hooves or fins-
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Authors: Holmes; Branden, Strzelecki, Artur, Springer, Steffen, Zieger, Michael
Pages: 65 - 73
Abstract: In nature conservation, the generation of public interest, attention or emotions is an important instrument for nature, biotope and species protection; in this, charismatic flagship species play an important role. In the present study, flagship-making affiliation to a taxonomic unit as well as morphological, ecological and conservation traits were identified by analysing vertebrate species from each of the five extant vertebrate classes (Mammalia, Aves, Reptilia, Amphibia and fishes). Google Trends data on the 20 most Googled species of each of the five classes were used, a representation index was derived and the body mass, diet and protection status of these species were analysed. A clear concentration of interest in mammalian species was evident with the help of the introduced representation index. Furthermore, species with a higher body mass were clearly overrepresented in the data. Overall, important patterns in the studied traits were determined: belonging to Mammalia, a large body mass and a carnivorous diet are frequently represented among these species. For conservation purposes, such popular species can be specifically selected as flagship species or ambassadors to help protect entire biomes, which will therefore benefit less charismatic species as well. Possible ways to use traits that are perceived to be flagship-making in order to further the global conservation endeavour are briefly discussed.
PubDate: 2022-03-25
DOI: 10.1017/S037689292200011X
- Serra do Divisor National Park: a protected area under threat in the
south-western Brazilian Amazon-
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Authors: Koga; Diogo Mitsuru, Brown, Irving Foster, Fearnside, Philip M, Salisbury, David S, Silva, Sonaira Souza da
Pages: 74 - 82
Abstract: Protected areas have numerous roles (such as biodiversity preservation, the development of scientific research and the sustainable use of natural resources), but they are under threat from political and economic forces. The 837 000-ha Serra do Divisor National Park (SDNP) in the south-western Brazilian Amazon combines the conservation of natural resources and the maintenance of the productive activities of c. 400 resident families. The Brazilian and Peruvian governments have proposed a road linking Acre (Brazil) to Ucayali (Peru) that would bisect the SDNP. Another threat to the SDNP is a bill proposing its downgrading to an ‘environmental protection area’. This study aims to map the land cover of the SDNP and its surroundings from 1988 to 2018 and to analyse the dynamics of land-use change. Analysis of Landsat satellite images with supervised classification using the MaxVer algorithm show that, during the 30-year period, pasture showed the highest absolute land-cover gain, with 1986 ha in the interior and 7661 ha along the periphery of the SDNP. Only 1% of the park’s primary forest was lost by 2018, but the proposed road and potential downgrading may result in accelerated deforestation and forest degradation in the near future.
PubDate: 2022-04-22
DOI: 10.1017/S0376892922000091
- Changes in the potential distribution of valuable tree species based on
their regeneration in the Neotropical seasonal dry forest of north-western
Argentina-
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Authors: Alabar; Fabio, Politi, Natalia, Názaro, Paula, Amoroso, Mariano, Rivera, Luis
Pages: 83 - 89
Abstract: The distribution of regeneration makes it possible to assess whether populations of tree species will maintain or change their distributions. For Neotropical dry forests there is little information on the potential changes in the distribution of tree species. Here, we evaluate the potential distributions of adults and seedlings of eight timber tree species of the Piedmont Forest of north-western Argentina by recording the presence of seedlings and adults in plots and modelling with MaxEnt software using three bioclimatic variables. The potential distribution areas of seedlings and adults and the percentage of overlap of seedlings with respect to adults were calculated. The potential distribution for adults was 694 457 ± 62 535 ha, and this figure was 656 564 ± 194 769 ha for seedlings. The potential distribution of seedlings of Calycophyllum multiflorum covered the smallest area (184 496 ha) and had the least overlap with the adults (18%). The difference in the overlap of the potential distribution areas between adults and seedlings suggests that there could be changes in the future distribution of this tree species and C. multiflorum should therefore be the focus of conservation strategies so that the species can follow its bioclimatic niche as the climate changes.
PubDate: 2022-04-08
DOI: 10.1017/S0376892922000133
- Hunting sustainability within two eastern Amazon Extractive Reserves
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Authors: de Paula; Milton José, Carvalho, Elildo AR, Lopes, Cintia Karoline Manos, Sousa, Reysane de Alencar, Maciel, Emerson Luiz Pereira, Wariss, Manoela, Barboza, Rafael Sá Leitão, Braga, Francisco Chen de Araújo, Félix-Silva, Daniely, Peres, Carlos A, Pezzuti, Juarez CB
Pages: 90 - 98
Abstract: Subsistence hunting provides an important food source for rural populations in tropical forests but can lead to wildlife depletion. Management of wildlife resources depends on assessments of hunting sustainability. We assessed the sustainability of subsistence hunting in two Amazonian Extractive Reserves. We examined hunting data from a community-based monitoring programme conducted in 30 communities during 63 consecutive months to address temporal trends in hunting yields in terms of catch per unit of effort of all game species and the six most hunted species. We also assessed the prey profiles across different communities. Game species composition did not differ between monitored communities, and the most hunted species were Tayassu pecari, large cracids, Cuniculus paca, Mazama spp., Tapirus terrestris and Pecari tajacu. Catch per unit of effort was stable for all game species and each of the most hunted species, indicating that hunting was generally sustainable. These findings reflect the exceptionally low human population density and continuous forest cover of the study landscape, and long-term hunting sustainability and local protein acquisition will depend on maintaining these social and environmental settings. The results also show that large Sustainable Use Protected Areas can help foster sustainable game management and should thus be included in public policies.
PubDate: 2022-05-12
DOI: 10.1017/S0376892922000145
- Worth more than 1000 words: how photographs can bolster viewers’
valuing of biodiversity-
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Authors: Gehlbach; Hunter, Robinson, Carly D, Vriesema, Christine Calderon, Bernal, Eduardo, Heise, Ursula K
Pages: 99 - 104
Abstract: For many, declining biodiversity represents an emotionally and psychologically distant ‘cost’ – similar to how a number of people perceive climate change. Using an expectancy-value theory framework, we showed participants photographs that visibly illustrated the threat of biodiversity loss. Specifically, we tested a combination of preregistered and exploratory hypotheses through an online experiment (n = 843) to understand whether viewing photographs of plants and animals (with and without captions) bolstered people’s valuing of biodiversity and willingness to donate to a nature-focused charity relative to a control group. Participants who viewed photographs (without captions) valued biodiversity more and donated more to the nature-focused charity; those who viewed photographs with captions showed similar though more muted (non-statistically significant) effects. Follow-up mediation analyses on the photographs-only participants suggested that the photographs may have catalysed negative emotions that increased valuing of biodiversity and, in turn, increased donations. This study provides preregistered evidence that thoughtfully selected photographs boost people’s valuing of biodiversity and exploratory evidence that the pathway through which that might occur is more likely via negative emotions than through reduced psychological distance. Educators, conservationists, journalists and others may find these results informative as they develop strategies for addressing the acute problem of biodiversity loss.
PubDate: 2022-02-03
DOI: 10.1017/S0376892922000042
- Do anthropogenic sources of food increase livestock predation in the area
surrounding Ruaha National Park'-
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Authors: Kalyahe; Montan M, Hofer, Heribert, East, Marion L
Pages: 105 - 113
Abstract: Wild carnivores are threatened by human activities, particularly by lethal responses to livestock predation. As natural prey populations decline, predation of livestock and consumption of discarded livestock ‘waste’ (carcasses and body parts) should increase. We investigated whether parameters linked to the production of livestock waste affected the likelihood of livestock predation. We interviewed 160 households near Ruaha National Park in Tanzania to obtain information on households, livestock ownership, predation and parameters linked to livestock waste production. Our analysis identified parameters that affected the likelihood of predation on cattle, sheep and goats. When these parameters were controlled for, we found an increased likelihood of cattle predation as waste from diseased and slaughtered cattle increased. Sheep predation was more likely and cattle predation was less likely as sheep deaths from starvation increased. Goat predation was more likely in medium-sized than smaller or larger villages, suggesting a trade-off to predators between the increasing benefit of more livestock waste and the costs of higher human disturbance and diminishing natural prey abundance as village size category increased. Our findings suggest that improved disposal of livestock waste from slaughtered cattle and measures to decrease cattle deaths from disease should reduce predation of highly prized cattle.
PubDate: 2022-03-16
DOI: 10.1017/S037689292200008X
- Drivers of prohibited natural resource collection in Chitwan National
Park, Nepal-
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Authors: Yabiku; Scott T, Sullivan, Abigail, York, Abigail M, Zhao, Qunshan, Glick, Jennifer E, Hall, Sharon J, Ghimire, Dirgha J, An, Li
Pages: 114 - 121
Abstract: Protected areas (PAs) are critical for achieving conservation, economic and development goals, but the factors that lead households to engage in prohibited resource collection in PAs are not well understood. We examine collection behaviours in community forests and the protected Chitwan National Park in Chitwan, Nepal. Our approach incorporates household and ecological data, including structured interviews, spatially explicit data on collection behaviours measured with computer tablets and a systematic field survey of invasive species. We pair our data with a framework that considers factors related to a household’s demand for resources, barriers to prohibited resource collection, barriers to legal resource collection and alternatives to resource collection. The analysis identifies key drivers of prohibited collection, including sociodemographic variables and perceptions of an invasive plant (Mikania micrantha). The social-ecological systems approach reveals that household perceptions of the presence of M. micrantha were more strongly associated with resource collection decisions than the actual ecologically measured presence of the plant. We explore the policy implications of our findings for PAs and propose that employing a social-ecological systems approach leads to conservation policy and scientific insights that are not possible to achieve with social or ecological approaches alone.
PubDate: 2022-04-07
DOI: 10.1017/S0376892922000121
- Sanitation is the greatest concern in outdoor cat management but
ecological message frames promote biodiversity conservation in Japan-
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Authors: Mameno; Kota, Kubo, Takahiro, Suzuki, Takaaki, Tsuge, Takahiro, Shoji, Yasushi
Pages: 122 - 129
Abstract: Message framing contributes to an increase in public support for invasive species management. However, little is known about people’s preferences for the multiple objectives of management within different contexts relating to the challenges and benefits of invasive species management. We examine Japanese citizens’ preferences for the goals of free-roaming unowned cat (Felis catus) management in three contextual frames by applying experimentally controlled information and the best–worst scaling technique. Our results indicate that the ecological frame highlighting the ecological impacts of free-roaming unowned cats on native ecosystems significantly increases Japanese citizens’ concern about cat predation, although the frame did not change the preference ranking of goals. There are differences in the effects of message framing depending on cat ownership. The best–worst scaling technique shows that Japanese citizens prefer to maintain a sanitary environment, followed by the prevention of zoonotic diseases. Although the ranking of sanitary environmental management does not depend on cat ownership, the ranking of the other goals differs depending on cat ownership. The findings highlight the importance of strategic message framing and its prioritization in encouraging public support for invasive species management.
PubDate: 2022-04-04
DOI: 10.1017/S0376892922000108
- Integrating burrowing crayfish and waterfowl conservation management on
moist-soil wetlands-
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Authors: Bloomer; Caitlin C, Taylor, Christopher A, Distefano, Robert J
Pages: 130 - 135
Abstract: The North American Waterfowl Management Plan highlights the importance of enhancing waterfowl habitat for productivity and resilience. Many forms of land management are conducted in wetlands to support the diverse communities of waterfowl and other species. Primary burrowing crayfish are also abundant and important in these environments, but little research is available assessing the effects of waterfowl land management on primary burrowers. We examined the response of the digger crayfish, Creaserinus fodiens, to the common vegetation management practices of mowing and disking at waterfowl conservation areas in south-eastern Missouri. Our results demonstrated that at a fine scale, crayfish density was affected by only canopy cover. We also highlighted distributional effects of landscape-level environmental variables and suggested that habitat generalists were tolerant of vegetation management, responding more to vegetation composition and broader landscape effects. We discuss wetlands conservation practices and suggest that burrowing crayfish management would integrate well with some current management strategies for waterfowl.
PubDate: 2022-03-04
DOI: 10.1017/S0376892922000078
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