33 results on '"Challender, Daniel W. S."'
Search Results
2. Understanding Markets to Conserve CITES-Listed Species
- Author
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Challender, Daniel W. S., primary and MacMillan, Douglas C., additional
- Published
- 2023
- Full Text
- View/download PDF
3. Author Correction: Identifying species likely threatened by international trade on the IUCN Red List can inform CITES trade measures
- Author
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Challender, Daniel W. S., Cremona, Patricia J., Malsch, Kelly, Robinson, Janine E., Pavitt, Alyson T., Scott, Janet, Hoffmann, Rachel, Joolia, Ackbar, Oldfield, Thomasina E. E., Jenkins, Richard K. B., Conde, Dalia A., Hilton-Taylor, Craig, and Hoffmann, Michael
- Published
- 2023
- Full Text
- View/download PDF
4. Evaluating key evidence and formulating regulatory alternatives regarding the UK's Hunting Trophies (Import Prohibition) Bill.
- Author
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Challender, Daniel W. S., 't Sas‐Rolfes, Michael, Dickman, Amy, Hare, Darragh, Hart, Adam G., Hoffmann, Michael, Mallon, David, Mandisodza‐Chikerema, Roseline L., and Roe, Dilys
- Subjects
- *
ENDANGERED species , *WILD animal trade , *ENVIRONMENTAL degradation ,CONVENTION on International Trade in Endangered Species of Wild Fauna & Flora (1973) - Abstract
Public policy addressing biodiversity loss is most likely to be effective when it is informed by appropriate evidence and considers potential unintended consequences. We evaluate key evidence relating to the Hunting Trophies (Import Prohibition) Bill that was discussed in the UK Parliament between 2022 and 2024. We characterize the UK's role in international hunting trophy trade by analyzing CITES (Convention on International Trade in Endangered Species of Wild Fauna and Flora) trade data for 2000–2021 and 2015–2021. For CITES‐listed species imported to/exported from the UK as hunting trophies in these periods we use data from the International Union for Conservation of Nature (IUCN) Red List of Threatened Species to determine whether hunting designated as "trophy hunting" is (i) likely a major threat contributing to species being of elevated conservation concern, (ii) likely or possibly causing localized declines, or (iii) not a threat. We then use the Red List to determine whether such hunting provides, or potentially provides, benefits for species and/or people. Finally, we evaluate the UK Government's impact assessment of the bill. In 2000–2021 an estimated 3494 hunting trophies from 73 CITES‐listed species and subspecies were exported to the UK involving an estimated 2549 whole organism equivalents (WOEs), that is, individual animals. Imports involved 158.86 ± 66.53 (mean ± SD) trophies/year (115.83 ± 32.27 WOEs/year). In 2015–2021, 79% of imports were from countries where populations of the hunted species are stable, increasing, or abundant. Legal hunting for trophies is not a major threat to any of the species or subspecies imported to the UK, but likely or possibly represents a local threat to some populations of eight species. This hunting does, or could potentially, benefit 20 species and subspecies, and people. Among other concerns, the impact assessment failed to adequately consider the costs and benefits to local communities in countries where such hunting occurs. Informed by these analyses we discuss alternative regulatory options. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
5. Designing celebrity‐endorsed behavioral interventions in conservation
- Author
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Olmedo, Alegría, primary, Veríssimo, Diogo, additional, Challender, Daniel W. S., additional, Dao, Huong Thi Thu, additional, Rubino, Elena C., additional, and Milner‐Gulland, E. J., additional
- Published
- 2024
- Full Text
- View/download PDF
6. Evaluating key evidence and formulating regulatory alternatives regarding the UK 's Hunting Trophies (Import Prohibition) Bill
- Author
-
Challender, Daniel W. S., 't Sas‐Rolfes, Michael, Dickman, Amy, Hare, Darragh, Hart, Adam G., Hoffmann, Michael, Mallon, David, Mandisodza‐Chikerema, Roseline L., Roe, Dilys, Challender, Daniel W. S., 't Sas‐Rolfes, Michael, Dickman, Amy, Hare, Darragh, Hart, Adam G., Hoffmann, Michael, Mallon, David, Mandisodza‐Chikerema, Roseline L., and Roe, Dilys
- Abstract
Public policy addressing biodiversity loss is most likely to be effective when it is informed by appropriate evidence and considers potential unintended consequences. We evaluate key evidence relating to the Hunting Trophies (Import Prohibition) Bill that was discussed in the UK Parliament between 2022 and 2024. We characterize the UK's role in international hunting trophy trade by analyzing CITES (Convention on International Trade in Endangered Species of Wild Fauna and Flora) trade data for 2000–2021 and 2015–2021. For CITES‐listed species imported to/exported from the UK as hunting trophies in these periods we use data from the International Union for Conservation of Nature (IUCN) Red List of Threatened Species to determine whether hunting designated as “trophy hunting” is (i) likely a major threat contributing to species being of elevated conservation concern, (ii) likely or possibly causing localized declines, or (iii) not a threat. We then use the Red List to determine whether such hunting provides, or potentially provides, benefits for species and/or people. Finally, we evaluate the UK Government's impact assessment of the bill. In 2000–2021 an estimated 3494 hunting trophies from 73 CITES‐listed species and subspecies were exported to the UK involving an estimated 2549 whole organism equivalents (WOEs), that is, individual animals. Imports involved 158.86 ± 66.53 (mean ± SD) trophies/year (115.83 ± 32.27 WOEs/year). In 2015–2021, 79% of imports were from countries where populations of the hunted species are stable, increasing, or abundant. Legal hunting for trophies is not a major threat to any of the species or subspecies imported to the UK, but likely or possibly represents a local threat to some populations of eight species. This hunting does, or could potentially, benefit 20 species and subspecies, and people. Among other concerns, the impact assessment failed to adequately consider the costs and benefits to local communities in countries where such hunt
- Published
- 2024
7. Incentivizing pangolin conservation: Decisions at CITES CoP19 may reduce conservation options for pangolins.
- Author
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Challender, Daniel W. S., Embolo, Luc Evouna, Keboy Mov Linkey Iflankoy, Claude, Mouafo, Alain D. T., Simo, Franklin T., Ullmann, Tessa, and Shirley, Matthew H.
- Subjects
- *
POPULATION viability analysis , *PANGOLINS , *INDIGENOUS rights , *PDF (Computer file format) ,CONVENTION on International Trade in Endangered Species of Wild Fauna & Flora (1973) - Abstract
The article discusses the policy direction for pangolin conservation in the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES). The current prohibitionist approach may not be optimal for conserving the species, as it fails to consider diverse and adaptive management approaches. The article suggests that restricting policy options for pangolins in CITES may hinder optimal national policies and proposes that formal domestic use and/or trade of pangolins could contribute to their conservation under appropriate governance conditions. The authors recommend recognizing the need for context-specific solutions and not removing potential tools for pangolin conservation. [Extracted from the article]
- Published
- 2024
- Full Text
- View/download PDF
8. Historical data for conservation : reconstructing range changes of Chinese pangolin ( Manis pentadactyla ) in eastern China (1970–2016)
- Author
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Yang, Li, Chen, Minhao, Challender, Daniel W. S., Waterman, Carly, Zhang, Chao, Huo, Zhaomin, Liu, Hongwei, and Luan, Xiaofeng
- Published
- 2018
9. Identifying species likely threatened by international trade on the IUCN Red List can inform CITES trade measures
- Author
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Challender, Daniel W S, Cremona, Patricia J, Malsch, Kelly, Robinson, Janine E, Pavitt, Alyson T, Scott, Janet, Hoffmann, Rachel, Joolia, Ackbar, Oldfield, Thomasina E E, Jenkins, Richard K B, Conde, Dalia A, Hilton-Taylor, Craig, Hoffmann, Michael, Challender, Daniel W S, Cremona, Patricia J, Malsch, Kelly, Robinson, Janine E, Pavitt, Alyson T, Scott, Janet, Hoffmann, Rachel, Joolia, Ackbar, Oldfield, Thomasina E E, Jenkins, Richard K B, Conde, Dalia A, Hilton-Taylor, Craig, and Hoffmann, Michael
- Abstract
Overexploitation is a major threat to biodiversity and international trade in many species is regulated through the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES). However, there is no established method to systematically determine which species are most at risk from international trade to inform potential trade measures under CITES. Here, we develop a mechanism using the International Union for Conservation of Nature's Red List of Threatened Species to identify species that are likely to be threatened by international trade. Of 2,211 such species, CITES includes 59% (1,307 species), leaving two-fifths overlooked and in potential need of international trade regulation. Our results can inform deliberations on potential proposals to revise trade measures for species at CITES Conference of the Parties meetings. We also show that, for taxa with biological resource use documented as a threat, the number of species threatened by local and national use is four times greater than species likely threatened by international trade. To effectively address the overexploitation of species, interventions focused on achieving sustainability in international trade need to be complemented by commensurate measures to ensure that local and national use and trade of wildlife is well-regulated and sustainable.
- Published
- 2023
10. Response: Commentary: Think Before You Act: Improving the Conservation Outcomes of CITES Listing Decisions
- Author
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Cooney, Rosie, primary, Challender, Daniel W. S., additional, Broad, Steven, additional, Roe, Dilys, additional, and Natusch, Daniel J. D., additional
- Published
- 2022
- Full Text
- View/download PDF
11. Prevalence of sustainable and unsustainable use of wild species inferred from the IUCN Red List of Threatened Species
- Author
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Marsh, Sophie M. E., Hoffmann, Michael, Burgess, Neil D., Brooks, Thomas M., Challender, Daniel W. S., Cremona, Patricia J., Hilton-Taylor, Craig, de Micheaux, Flore Lafaye, Lichtenstein, Gabriela, Roe, Dilys, Böhm, Monika, Marsh, Sophie M. E., Hoffmann, Michael, Burgess, Neil D., Brooks, Thomas M., Challender, Daniel W. S., Cremona, Patricia J., Hilton-Taylor, Craig, de Micheaux, Flore Lafaye, Lichtenstein, Gabriela, Roe, Dilys, and Böhm, Monika
- Abstract
Unsustainable exploitation of wild species represents a serious threat to biodiversity and to the livelihoods of local communities and Indigenous peoples. However, managed, sustainable use has the potential to forestall extinctions, aid recovery, and meet human needs. We analyzed species-level data for 30,923 species from 13 taxonomic groups on the International Union for Conservation of Nature Red List of Threatened Species to investigate patterns of intentional biological resource use. Forty percent of species (10,098 of 25,009 species from 10 data-sufficient taxonomic groups) were used. The main purposes of use were pets, display animals, horticulture, and human consumption. Intentional use is currently contributing to elevated extinction risk for 28–29% of threatened or near threatened (NT) species (2752–2848 of 9753 species). Intentional use also affected 16% of all species used (1597–1631 of 10,098). However, 72% of used species (7291 of 10,098) were least concern, of which nearly half (3469) also had stable or improving population trends. The remainder were not documented as threatened by biological resource use, including at least 172 threatened or NT species with stable or improving populations. About one-third of species that had use documented as a threat had no targeted species management actions to directly address this threat. To improve use-related red-list data, we suggest small amendments to the relevant classification schemes and required supporting documentation. Our findings on the prevalence of sustainable and unsustainable use, and variation across taxa, can inform international policy making, including the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services, the Convention on Biological Diversity, and the Convention on International Trade in Endangered Species.
- Published
- 2022
12. Trading species to extinction: evidence of extinction linked to the wildlife trade.
- Author
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Hinsley, Amy, Willis, Jasmin, Dent, Abigail R., Oyanedel, Rodrigo, Takahiro Kubo, and Challender, Daniel W. S.
- Subjects
WILD animal trade ,BIOLOGICAL extinction ,ANIMAL species ,ENDANGERED species ,ACTINOPTERYGII ,NUMBERS of species - Abstract
The link between unsustainable harvest of species for the wildlife trade and extinction is clear in some cases, but little is known about the number of species across taxonomic groups that have gone extinct because of trade-related factors, or future risks for traded species. We conducted a rapid review of published articles and species assessments on the IUCN Red List of Threatened Species with the aim of recording examples of extinctions that were attributed to trade. Wefound reports of extinctions linked, at least in part, to wildlife trade for 511 unique taxa. These include 294 reports of global extinctions, 25 extinctions in the wild, and 192 local extinctions. The majority of global/in the wild extinctions linked to trade (230) involved ray-finned fishes, primarily due to predation by introduced commercial species. Seventy-one of the 175 reported local extinctions of animal taxa linked to trade were mammals. Twenty-two global/in the wild extinctions and 16 local extinctions of plants were reportedly linked to trade. One fungal species was reported locally extinct due to over-harvesting for trade. Furthermore, 340 species were reported to be near-extinct linked to trade, 269 of which were animals, including several highprofile megafauna. Extinctions were linked to direct harvesting and/or indirect threats such as bycatch or invasive species introduced for trade, but often it was not possible to determine the relative role of trade-related threats in extinctions. Our results highlight the need for better data collection on trade-related extinction risk to understand its impacts and to inform more effective wildlife trade policy. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
13. Prevalence of sustainable and unsustainable use of wild species inferred from the IUCN Red List of Threatened Species
- Author
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Marsh, Sophie M. E., primary, Hoffmann, Michael, additional, Burgess, Neil D., additional, Brooks, Thomas M., additional, Challender, Daniel W. S., additional, Cremona, Patricia J., additional, Hilton‐Taylor, Craig, additional, de Micheaux, Flore Lafaye, additional, Lichtenstein, Gabriela, additional, Roe, Dilys, additional, and Böhm, Monika, additional
- Published
- 2021
- Full Text
- View/download PDF
14. Think Before You Act: Improving the Conservation Outcomes of CITES Listing Decisions
- Author
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Cooney, Rosie, primary, Challender, Daniel W. S., additional, Broad, Steven, additional, Roe, Dilys, additional, and Natusch, Daniel J. D., additional
- Published
- 2021
- Full Text
- View/download PDF
15. Who eats wild meat? Profiling consumers in Ho Chi Minh City, Vietnam
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Olmedo, Alegría, primary, Veríssimo, Diogo, additional, Challender, Daniel W. S., additional, Dao, Huong Thi Thu, additional, and Milner‐Gulland, E. J., additional
- Published
- 2021
- Full Text
- View/download PDF
16. “Saving Lives, Protecting Livelihoods, and Safeguarding Nature”: Risk-Based Wildlife Trade Policy for Sustainable Development Outcomes Post-COVID-19
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Booth, Hollie, primary, Arias, Melissa, additional, Brittain, Stephanie, additional, Challender, Daniel W. S., additional, Khanyari, Munib, additional, Kuiper, Timothy, additional, Li, Yuhan, additional, Olmedo, Alegria, additional, Oyanedel, Rodrigo, additional, Pienkowski, Thomas, additional, and Milner-Gulland, E. J., additional
- Published
- 2021
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- View/download PDF
17. A scoping review of celebrity endorsement in environmental campaigns and evidence for its effectiveness
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Olmedo, Alegría, primary, Milner‐Gulland, E. J., additional, Challender, Daniel W. S., additional, Cugnière, Laure, additional, Dao, Huong Thi Thu, additional, Nguyen, Linh Bao, additional, Nuno, Ana, additional, Potier, Emelyne, additional, Ribadeneira, Martin, additional, Thomas‐Walters, Laura, additional, Wan, Anita Kar Yan, additional, Wang, Yifu, additional, and Veríssimo, Diogo, additional
- Published
- 2020
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- View/download PDF
18. “Saving lives, protecting livelihoods, and safeguarding nature”: risk-based wildlife trade policy for sustainable development outcomes post-COVID-19
- Author
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Booth, Hollie, primary, Arias, Melissa, additional, Brittain, Stephanie, additional, Challender, Daniel W. S., additional, Khanyari, Munib, additional, Kupier, Timothy, additional, Li, Yuhan, additional, Castro, Alegria Olmedo, additional, Oyanedel, Rodrigo, additional, Pienkowski, Tom, additional, and Milner-Gulland, E.J., additional
- Published
- 2020
- Full Text
- View/download PDF
19. Pangolins in global camera trap data: Implications for ecological monitoring
- Author
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Khwaja, Hannah, Buchan, Claire, Wearn, Oliver R., Bahaa-el-din, Laila, Bantlin, Drew, Bernard, Henry, Bitariho, Robert, Bohm, Torsten, Borah, Jimmy, Brodie, Jedediah, Chutipong, Wanlop, du Preez, Byron, Ebang-Mbele, Alex, Edwards, Sarah, Fairet, Emilie, Frechette, Jackson L., Garside, Adrian, Gibson, Luke, Giordano, Anthony, Gopi, Govindan Veeraswami, Granados, Alys, Gubbi, Sanjay, Harich, Franziska, Haurez, Barbara, Havmoller, Rasmus W., Helmy, Olga, Isbell, Lynne A., Jenks, Kate, Kalle, Riddhika, Kamjing, Anucha, Khamcha, Daphawan, Kiebou-Opepa, Cisquet, Kinnaird, Margaret, Kruger, Caroline, Laudisoit, Anne, Lynam, Antony, Macdonald, Suzanne E., Mathai, John, Sienne, Julia Metsio, Meier, Amelia, Mills, David, Mohd-Azlan, Jayasilan, Nakashima, Yoshihiro, Nash, Helen C., Ngoprasert, Dusit, Nguyen, An, O'Brien, Timothy J., Olson, David, Orbell, Christopher, Poulsen, John, Ramesh, Tharmalingam, Reeder, DeeAnn, Reyna, Rafael, Rich, Lindsey N., Rode-Margono, Johanna, Rovero, Francesco, Sheil, Douglas, Shirley, Matthew H., Stratford, Ken, Sukumal, Niti, Suwanrat, Saranphat, Tantipisanuh, Naruemon, Tilker, Andrew, Van Berkel, Tim, Van der Weyde, Leanne K., Varney, Matthew, Weise, Florian, Wiesel, Ingrid, Wilting, Andreas, Wong, Seth T., Waterman, Carly, Challender, Daniel W. S., Khwaja, Hannah, Buchan, Claire, Wearn, Oliver R., Bahaa-el-din, Laila, Bantlin, Drew, Bernard, Henry, Bitariho, Robert, Bohm, Torsten, Borah, Jimmy, Brodie, Jedediah, Chutipong, Wanlop, du Preez, Byron, Ebang-Mbele, Alex, Edwards, Sarah, Fairet, Emilie, Frechette, Jackson L., Garside, Adrian, Gibson, Luke, Giordano, Anthony, Gopi, Govindan Veeraswami, Granados, Alys, Gubbi, Sanjay, Harich, Franziska, Haurez, Barbara, Havmoller, Rasmus W., Helmy, Olga, Isbell, Lynne A., Jenks, Kate, Kalle, Riddhika, Kamjing, Anucha, Khamcha, Daphawan, Kiebou-Opepa, Cisquet, Kinnaird, Margaret, Kruger, Caroline, Laudisoit, Anne, Lynam, Antony, Macdonald, Suzanne E., Mathai, John, Sienne, Julia Metsio, Meier, Amelia, Mills, David, Mohd-Azlan, Jayasilan, Nakashima, Yoshihiro, Nash, Helen C., Ngoprasert, Dusit, Nguyen, An, O'Brien, Timothy J., Olson, David, Orbell, Christopher, Poulsen, John, Ramesh, Tharmalingam, Reeder, DeeAnn, Reyna, Rafael, Rich, Lindsey N., Rode-Margono, Johanna, Rovero, Francesco, Sheil, Douglas, Shirley, Matthew H., Stratford, Ken, Sukumal, Niti, Suwanrat, Saranphat, Tantipisanuh, Naruemon, Tilker, Andrew, Van Berkel, Tim, Van der Weyde, Leanne K., Varney, Matthew, Weise, Florian, Wiesel, Ingrid, Wilting, Andreas, Wong, Seth T., Waterman, Carly, and Challender, Daniel W. S.
- Abstract
Despite being heavily exploited, pangolins (Pholidota: Manidae) have been subject to limited research, resulting in a lack of reliable population estimates and standardised survey methods for the eight extant species. Camera trapping represents a unique opportunity for broad-scale collaborative species monitoring due to its largely nondiscriminatory nature, which creates considerable volumes of data on a relatively wide range of species. This has the potential to shed light on the ecology of rare, cryptic and understudied taxa, with implications for conservation decision-making. We undertook a global analysis of available pangolin data from camera trapping studies across their range in Africa and Asia. Our aims were (1) to assess the utility of existing camera trapping efforts as a method for monitoring pangolin populations, and (2) to gain insights into the distribution and ecology of pangolins. We analysed data collated from 103 camera trap surveys undertaken across 22 countries that fell within the range of seven of the eight pangolin species, which yielded more than half a million trap nights and 888 pangolin encounters. We ran occupancy analyses on three species (Sunda pangolin Manis javanica, white-bellied pangolin Phataginus tricuspis and giant pangolin Smutsia gigantea). Detection probabilities varied with forest cover and levels of human influence for P. tricuspis, but were low (<0.05) for all species. Occupancy was associated with distance from rivers for M. javanica and S. gigantea, elevation for P. tricuspis and S. gigantea, forest cover for P. tricuspis and protected area status for M. javanica and P. tricuspis. We conclude that camera traps are suitable for the detection of pangolins and large-scale assessment of their distributions. However, the trapping effort required to monitor populations at any given study site using existing methods appears prohibitively high. This may change in the future should anticipated technological and methodological adva
- Published
- 2019
- Full Text
- View/download PDF
20. Pangolins in global camera trap data: Implications for ecological monitoring
- Author
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Fish and Wildlife Conservation, Khwaja, Hannah, Buchan, Claire, Wearn, Oliver R., Bahaa-el-din, Laila, Bantlin, Drew, Bernard, Henry, Bitariho, Robert, Bohm, Torsten, Borah, Jimmy, Brodie, Jedediah, Chutipong, Wanlop, du Preez, Byron, Ebang-Mbele, Alex, Edwards, Sarah, Fairet, Emilie, Frechette, Jackson L., Garside, Adrian, Gibson, Luke, Giordano, Anthony, Gopi, Govindan Veeraswami, Granados, Alys, Gubbi, Sanjay, Harich, Franziska, Haurez, Barbara, Havmoller, Rasmus W., Helmy, Olga, Isbell, Lynne A., Jenks, Kate, Kalle, Riddhika, Kamjing, Anucha, Khamcha, Daphawan, Kiebou-Opepa, Cisquet, Kinnaird, Margaret, Kruger, Caroline, Laudisoit, Anne, Lynam, Antony, Macdonald, Suzanne E., Mathai, John, Sienne, Julia Metsio, Meier, Amelia, Mills, David, Mohd-Azlan, Jayasilan, Nakashima, Yoshihiro, Nash, Helen C., Ngoprasert, Dusit, Nguyen, An, O'Brien, Timothy J., Olson, David, Orbell, Christopher, Poulsen, John, Ramesh, Tharmalingam, Reeder, DeeAnn, Reyna, Rafael, Rich, Lindsey N., Rode-Margono, Johanna, Rovero, Francesco, Sheil, Douglas, Shirley, Matthew H., Stratford, Ken, Sukumal, Niti, Suwanrat, Saranphat, Tantipisanuh, Naruemon, Tilker, Andrew, Van Berkel, Tim, Van der Weyde, Leanne K., Varney, Matthew, Weise, Florian, Wiesel, Ingrid, Wilting, Andreas, Wong, Seth T., Waterman, Carly, Challender, Daniel W. S., Fish and Wildlife Conservation, Khwaja, Hannah, Buchan, Claire, Wearn, Oliver R., Bahaa-el-din, Laila, Bantlin, Drew, Bernard, Henry, Bitariho, Robert, Bohm, Torsten, Borah, Jimmy, Brodie, Jedediah, Chutipong, Wanlop, du Preez, Byron, Ebang-Mbele, Alex, Edwards, Sarah, Fairet, Emilie, Frechette, Jackson L., Garside, Adrian, Gibson, Luke, Giordano, Anthony, Gopi, Govindan Veeraswami, Granados, Alys, Gubbi, Sanjay, Harich, Franziska, Haurez, Barbara, Havmoller, Rasmus W., Helmy, Olga, Isbell, Lynne A., Jenks, Kate, Kalle, Riddhika, Kamjing, Anucha, Khamcha, Daphawan, Kiebou-Opepa, Cisquet, Kinnaird, Margaret, Kruger, Caroline, Laudisoit, Anne, Lynam, Antony, Macdonald, Suzanne E., Mathai, John, Sienne, Julia Metsio, Meier, Amelia, Mills, David, Mohd-Azlan, Jayasilan, Nakashima, Yoshihiro, Nash, Helen C., Ngoprasert, Dusit, Nguyen, An, O'Brien, Timothy J., Olson, David, Orbell, Christopher, Poulsen, John, Ramesh, Tharmalingam, Reeder, DeeAnn, Reyna, Rafael, Rich, Lindsey N., Rode-Margono, Johanna, Rovero, Francesco, Sheil, Douglas, Shirley, Matthew H., Stratford, Ken, Sukumal, Niti, Suwanrat, Saranphat, Tantipisanuh, Naruemon, Tilker, Andrew, Van Berkel, Tim, Van der Weyde, Leanne K., Varney, Matthew, Weise, Florian, Wiesel, Ingrid, Wilting, Andreas, Wong, Seth T., Waterman, Carly, and Challender, Daniel W. S.
- Abstract
Despite being heavily exploited, pangolins (Pholidota: Manidae) have been subject to limited research, resulting in a lack of reliable population estimates and standardised survey methods for the eight extant species. Camera trapping represents a unique opportunity for broad-scale collaborative species monitoring due to its largely nondiscriminatory nature, which creates considerable volumes of data on a relatively wide range of species. This has the potential to shed light on the ecology of rare, cryptic and understudied taxa, with implications for conservation decision-making. We undertook a global analysis of available pangolin data from camera trapping studies across their range in Africa and Asia. Our aims were (1) to assess the utility of existing camera trapping efforts as a method for monitoring pangolin populations, and (2) to gain insights into the distribution and ecology of pangolins. We analysed data collated from 103 camera trap surveys undertaken across 22 countries that fell within the range of seven of the eight pangolin species, which yielded more than half a million trap nights and 888 pangolin encounters. We ran occupancy analyses on three species (Sunda pangolin Manis javanica, white-bellied pangolin Phataginus tricuspis and giant pangolin Smutsia gigantea). Detection probabilities varied with forest cover and levels of human influence for P. tricuspis, but were low (<0.05) for all species. Occupancy was associated with distance from rivers for M. javanica and S. gigantea, elevation for P. tricuspis and S. gigantea, forest cover for P. tricuspis and protected area status for M. javanica and P. tricuspis. We conclude that camera traps are suitable for the detection of pangolins and large-scale assessment of their distributions. However, the trapping effort required to monitor populations at any given study site using existing methods appears prohibitively high. This may change in the future should anticipated technological and methodological adva
- Published
- 2019
21. Criteria for CITES species protection
- Author
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Challender, Daniel W. S., primary, Hoffmann, Michael, additional, Hoffmann, Rachel, additional, Scott, Janet, additional, Robinson, Janine E., additional, Cremona, Patricia, additional, Hilton-Taylor, Craig, additional, Jenkins, Richard K. B., additional, Malsch, Kelly, additional, Conde, Dalia, additional, and De Meulenaer, Tom, additional
- Published
- 2019
- Full Text
- View/download PDF
22. Identifying global centers of unsustainable commercial harvesting of species
- Author
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Di Minin, Enrico, primary, Brooks, Thomas M., additional, Toivonen, Tuuli, additional, Butchart, Stuart H. M., additional, Heikinheimo, Vuokko, additional, Watson, James E. M., additional, Burgess, Neil D., additional, Challender, Daniel W. S., additional, Goettsch, Bárbara, additional, Jenkins, Richard, additional, and Moilanen, Atte, additional
- Published
- 2019
- Full Text
- View/download PDF
23. Investigating the Influence of Non-state Actors on Amendments to the CITES Appendices
- Author
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Challender, Daniel W. S., primary and MacMillan, Douglas C., additional
- Published
- 2019
- Full Text
- View/download PDF
24. The emergence of a commercial trade in pangolins from Gabon
- Author
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Mambeya, Meine M., primary, Baker, Francesca, additional, Momboua, Brice R., additional, Koumba Pambo, Aurélie Flore, additional, Hega, Martin, additional, Okouyi Okouyi, Vivien Joseph, additional, Onanga, Martial, additional, Challender, Daniel W. S., additional, Ingram, Daniel J., additional, Wang, Hongyan, additional, and Abernethy, Katharine, additional
- Published
- 2018
- Full Text
- View/download PDF
25. From poachers to protectors:engaging local communities in solutions to illegal wildlife trade
- Author
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Cooney, Rosie, Roe, Dilys, Dublin, Holly, Phelps, Jacob Wesley, Wilkie, David, Keane, Aidan, Travers, Henry, Skinner, Diane, Challender, Daniel W. S., Allan, James R., Cooney, Rosie, Roe, Dilys, Dublin, Holly, Phelps, Jacob Wesley, Wilkie, David, Keane, Aidan, Travers, Henry, Skinner, Diane, Challender, Daniel W. S., and Allan, James R.
- Abstract
Combating the surge of illegal wildlife trade (IWT) devastating wildlife populations is an urgent global priority for conservation. There are increasing policy commitments to take action at the local community level as part of effective responses. However, there is scarce evidence that in practice such interventions are being pursued and there is scant understanding regarding how they can help. Here we set out a conceptual framework to guide efforts to effectively combat IWT through actions at community level. This framework is based on articulating the net costs and benefits involved in supporting conservation versus supporting IWT, and how these incentives are shaped by anti-IWT interventions. Using this framework highlights the limitations of an exclusive focus on "top-down," enforcement-led responses to IWT. These responses can distract from a range of other approaches that shift incentives for local people toward supporting conservation rather than IWT, as well as in some cases actually decrease the net incentives in favor of wildlife conservation.
- Published
- 2017
26. Quantity Does Not Always Mean Quality: The Importance of Qualitative Social Science in Conservation Research
- Author
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Rust, Niki A., primary, Abrams, Amber, additional, Challender, Daniel W. S., additional, Chapron, Guillaume, additional, Ghoddousi, Arash, additional, Glikman, Jenny A., additional, Gowan, Catherine H., additional, Hughes, Courtney, additional, Rastogi, Archi, additional, Said, Alicia, additional, Sutton, Alexandra, additional, Taylor, Nik, additional, Thomas, Sarah, additional, Unnikrishnan, Hita, additional, Webber, Amanda D., additional, Wordingham, Gwen, additional, and Hill, Catherine M., additional
- Published
- 2017
- Full Text
- View/download PDF
27. From Poachers to Protectors: Engaging Local Communities in Solutions to Illegal Wildlife Trade
- Author
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Cooney, Rosie, primary, Roe, Dilys, additional, Dublin, Holly, additional, Phelps, Jacob, additional, Wilkie, David, additional, Keane, Aidan, additional, Travers, Henry, additional, Skinner, Diane, additional, Challender, Daniel W. S., additional, Allan, James R., additional, and Biggs, Duan, additional
- Published
- 2016
- Full Text
- View/download PDF
28. Historical data for conservation: reconstructing range changes of Chinese pangolin (Manis pentadactyla) in eastern China (1970-2016).
- Author
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Minhao Chen, Chao Zhang, Zhaomin Huo, Xiaofeng Luan, Li Yang, Challender, Daniel W. S., Waterman, Carly, and Hongwei Liu
- Subjects
MANIS ,PANGOLINS ,CONSERVATION biology ,ANTHROPOGENIC effects on nature - Abstract
The Chinese pangolin (Manis pentadactyla) has long suffered from intense exploitation driven by consumer demand for medicinal use and food. Effective conservation management is hampered by insufficient data on pangolin status and distribution. We integrated ecological niche modelling with long-term ecological records at the local scale (e.g. from local historical documents, grey and published literature and interviews) to estimate the magnitude of potential distribution change of the Chinese pangolin in eastern China (Fujian, Jiangxi and Zhejiang provinces) over time. Our results suggest that the range of the species decreased by 52.20% between the 1970s and early 2000s and that the population is now mainly confined to the Wuyi Mountains. This reduction in potential distribution range is attributable to anthropogenic pressures. According to our conservation prioritization analysis, the priority conservation area for the Chinese pangolin in eastern China is 51 268.4 km², 5.62% of which is covered by nature reserves. There are 18 nature reserves and 46 prefectures which are priority areas for conservation in China. The priority-level nature reserves and prefectures in eastern China are mainly located in the centre of the Wuyi Mountains, and areas declared important tend to be around the Wuyi Mountains. We propose several actions to improve the conservation status of this species: establish or enlarge nature reserves, ensure local governments at the prefecture level prioritize conservation management and encourage local communities to participate in pangolin conservation. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
- View/download PDF
29. From Poachers to Protectors: Engaging Local Communities in Solutions to Illegal Wildlife Trade.
- Author
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Cooney, Rosie, Roe, Dilys, Dublin, Holly, Phelps, Jacob, Wilkie, David, Keane, Aidan, Travers, Henry, Skinner, Diane, Challender, Daniel W. S., Allan, James R., and Biggs, Duan
- Subjects
WILD animal trade laws ,ANIMAL populations ,WILDLIFE conservation ,POACHING ,SUSTAINABLE development - Abstract
Combating the surge of illegal wildlife trade (IWT) devastating wildlife populations is an urgent global priority for conservation. There are increasing policy commitments to take action at the local community level as part of effective responses. However, there is scarce evidence that in practice such interventions are being pursued and there is scant understanding regarding how they can help. Here we set out a conceptual framework to guide efforts to effectively combat IWT through actions at community level. This framework is based on articulating the net costs and benefits involved in supporting conservation versus supporting IWT, and how these incentives are shaped by anti-IWT interventions. Using this framework highlights the limitations of an exclusive focus on "top-down," enforcement-led responses to IWT. These responses can distract from a range of other approaches that shift incentives for local people toward supporting conservation rather than IWT, as well as in some cases actually decrease the net incentives in favor of wildlife conservation. [ABSTRACT FROM AUTHOR]
- Published
- 2017
- Full Text
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30. Poaching is more than an Enforcement Problem
- Author
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Challender, Daniel W. S., primary and MacMillan, Douglas C., additional
- Published
- 2014
- Full Text
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31. Time-budgets and activity patterns of captive Sunda pangolins (Manis javanica)
- Author
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Challender, Daniel W. S., primary, Thai, Nguyen Van, additional, Jones, Martin, additional, and May, Les, additional
- Published
- 2011
- Full Text
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32. Time-budgets and activity patterns of captive Sunda pangolins ( Manis javanica).
- Author
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Challender, Daniel W. S., Thai, Nguyen Van, Jones, Martin, and May, Les
- Abstract
This is the first assessment of Manis javanica behavior in captivity. The aim of the investigation was to assess behavior in order to suggest ways of improving captive care and management of the species. This was undertaken by constructing time-budgets and activity patterns and identifying any abnormal repetitive behavior (ARB) exhibited. Scan and focal animal sampling were implemented in observations of seven subjects. Analyses detailed idiosyncrasies in how subjects partitioned their active time. Peak activity occurred between 18:00 and 21:00 hr. Two ARBs, clawing and pacing, were identified and the cessation of clawing in one subject was possible by modifying its enclosure. Stress-related behavior, understood to be related to several factors, means maintaining this species in captivity remains problematic. Recommendations are made pertaining to husbandry, captive management, and future research. Zoo Biol 31: 206-218, 2012. © 2011 Wiley Periodicals, Inc. [ABSTRACT FROM AUTHOR]
- Published
- 2012
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33. Prevalence of sustainable and unsustainable use of wild species inferred from the IUCN Red List of Threatened Species.
- Author
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Marsh SME, Hoffmann M, Burgess ND, Brooks TM, Challender DWS, Cremona PJ, Hilton-Taylor C, de Micheaux FL, Lichtenstein G, Roe D, and Böhm M
- Subjects
- Animals, Biodiversity, Commerce, Conservation of Natural Resources, Internationality, Prevalence, Ecosystem, Endangered Species
- Abstract
Unsustainable exploitation of wild species represents a serious threat to biodiversity and to the livelihoods of local communities and Indigenous peoples. However, managed, sustainable use has the potential to forestall extinctions, aid recovery, and meet human needs. We analyzed species-level data for 30,923 species from 13 taxonomic groups on the International Union for Conservation of Nature Red List of Threatened Species to investigate patterns of intentional biological resource use. Forty percent of species (10,098 of 25,009 species from 10 data-sufficient taxonomic groups) were used. The main purposes of use were pets, display animals, horticulture, and human consumption. Intentional use is currently contributing to elevated extinction risk for 28-29% of threatened or near threatened (NT) species (2752-2848 of 9753 species). Intentional use also affected 16% of all species used (1597-1631 of 10,098). However, 72% of used species (7291 of 10,098) were least concern, of which nearly half (3469) also had stable or improving population trends. The remainder were not documented as threatened by biological resource use, including at least 172 threatened or NT species with stable or improving populations. About one-third of species that had use documented as a threat had no targeted species management actions to directly address this threat. To improve use-related red-list data, we suggest small amendments to the relevant classification schemes and required supporting documentation. Our findings on the prevalence of sustainable and unsustainable use, and variation across taxa, can inform international policy making, including the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services, the Convention on Biological Diversity, and the Convention on International Trade in Endangered Species., (© 2021 The Authors. Conservation Biology published by Wiley Periodicals LLC on behalf of Society for Conservation Biology.)
- Published
- 2022
- Full Text
- View/download PDF
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