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1. Mapping the distribution of the Sunda pangolin (Manis javanica) within natural forest in Sabah, Malaysian Borneo

Author

Panjang, Elisa, Lim, Hong Ye, Thomas, Robert J., Goossens, Benoit, Hearn, Andrew J., Macdonald, David W., Ross, Joanna, Wong, Seth Timothy, Guharajan, Roshan, Mohamed, Azlan, Gardner, Penny C., Koh, Sharon, Cheah, Cheryl, Ancrenaz, Marc, Lackman, Isabelle, Ong, Robert, Nilus, Reuben, Hastie, Alex, Brodie, Jedediah F., Granados, Alys, Helmy, Olga, Lapis, Olivia Magritta, Simon, Donna, Davies, Glyn, Te Wong, Siew, Rampangajouw, Mark, Matsubayashi, Hisashi, Sano, Chihiro, Runting, Rebecca K., Sipangkui, Symphorosa, and Abram, Nicola K.

Published
2024
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2. Socio-ecological factors shape the distribution of a cultural keystone species in Malaysian Borneo

Author

Kurz, David J., Connor, Thomas, Brodie, Jedediah F., Baking, Esther L., Szeto, Sabrina H., Hearn, Andrew J., Gardner, Penny C., Wearn, Oliver R., Deith, Mairin C. M., Deere, Nicolas J., Ampeng, Ahmad, Bernard, Henry, Goon, Jocelyn, Granados, Alys, Helmy, Olga, Lim, Hong-Ye, Luskin, Matthew Scott, Macdonald, David W., Ross, Joanna, Simpson, Boyd K., Struebig, Matthew J., Mohd-Azlan, Jayasilan, Potts, Matthew D., Goossens, Benoit, and Brashares, Justin S.

Published
2023
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3. Landscape-scale benefits of protected areas for tropical biodiversity

Author

Brodie, Jedediah F., Mohd-Azlan, Jayasilan, Chen, Cheng, Wearn, Oliver R., Deith, Mairin C. M., Ball, James G. C., Slade, Eleanor M., Burslem, David F. R. P., Teoh, Shu Woan, Williams, Peter J., Nguyen, An, Moore, Jonathan H., Goetz, Scott J., Burns, Patrick, Jantz, Patrick, Hakkenberg, Christopher R., Kaszta, Zaneta M., Cushman, Sam, Coomes, David, Helmy, Olga E., Reynolds, Glen, Rodríguez, Jon Paul, Jetz, Walter, and Luskin, Matthew Scott

Published
2023
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4. Author Correction: Landscape-scale benefits of protected areas for tropical biodiversity

Author

Brodie, Jedediah F., Mohd-Azlan, Jayasilan, Chen, Cheng, Wearn, Oliver R., Deith, Mairin C. M., Ball, James G. C., Slade, Eleanor M., Burslem, David F. R. P., Teoh, Shu Woan, Williams, Peter J., Nguyen, An, Moore, Jonathan H., Goetz, Scott J., Burns, Patrick, Jantz, Patrick, Hakkenberg, Christopher R., Kaszta, Zaneta M., Cushman, Sam, Coomes, David, Helmy, Olga E., Reynolds, Glen, Rodríguez, Jon Paul, Jetz, Walter, and Luskin, Matthew Scott

Published
2024
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5. Publisher Correction: Landscape-scale benefits of protected areas for tropical biodiversity

Author

Brodie, Jedediah F., Mohd-Azlan, Jayasilan, Chen, Cheng, Wearn, Oliver R., Deith, Mairin C. M., Ball, James G. C., Slade, Eleanor M., Burslem, David F. R. P., Teoh, Shu Woan, Williams, Peter J., Nguyen, An, Moore, Jonathan H., Goetz, Scott J., Burns, Patrick, Jantz, Patrick, Hakkenberg, Christopher R., Kaszta, Zaneta M., Cushman, Sam, Coomes, David, Helmy, Olga E., Reynolds, Glen, Rodríguez, Jon Paul, Jetz, Walter, and Luskin, Matthew Scott

Published
2024
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10. Socio-ecological factors shape the distribution of a cultural keystone species (bearded pig, Sus barbatus) in Malaysian Borneo

Author

struebig, matthew, Macdonald, David, Luskin, Matthew, Simpson, Boyd, Kurz, David, Gardner, Penny, Connor, Thomas, Baking, Esther, Brodie, Jedediah, Ross, Joanna, Wearn, Oliver, Deith, Mairin, Ampeng, Ahmad, Mohd-Azlan, Jayasilan, Deere, Nicolas, Bernard, Henry, Goossens, Benoit, Potts, Matthew, Brashares, Justin, Lim, Hong-Ye, Szeto, Sabrina, Hearn, Andrew, Granados, Alys, Helmy, Olga, and Wern, Jocelyn

Subjects
bepress|Life Sciences|Ecology and Evolutionary Biology|Terrestrial and Aquatic Ecology, bepress|Life Sciences, bepress|Life Sciences|Ecology and Evolutionary Biology
Abstract

Biophysical and socio-cultural factors have jointly shaped the distribution of global biodiversity, yet relatively few studies have quantitatively assessed the influence of social and ecological landscapes on wildlife distributions. We sought to determine whether social and ecological covariates shape the distribution of a cultural keystone species, the bearded pig (Sus barbatus). Drawing on a dataset of 295 total camera trap locations and 25,755 trap days across 18 field sites and three years in Sabah and Sarawak, Malaysian Borneo, we fitted occupancy models incorporating socio-cultural covariates and environmental covariates hypothesized to be associated with bearded pig occupancy. We found that all competitive occupancy models included both socio-cultural covariates and ecological covariates. Moreover, we found quantitative evidence supporting Indigenous pig hunting rights: high levels of Indigenous pig-hunting groups were positively associated with pig occupancy in low-accessibility areas, and medium and low levels of Indigenous pig-hunting groups were positively associated with pig occupancy in high-accessibility areas. These results suggest that bearded pig populations in Malaysian Borneo should be managed with context-specific strategies, promoting Indigenous pig hunting rights. We also provide important baseline information on bearded pig occupancy levels prior to the 2020-2021 outbreak of African Swine Fever (ASF), which caused social and ecological concerns after mass dieoffs of bearded pigs in Borneo.

Published
2022

12. Ecology, occurrence and distribution of wild felids in Sarawak, Malaysian Borneo.

Author

Mohd-Azlan, Jayasilan, Kaicheen, Sally Soo, Hong, Lisa Lok Choy, Yi, Melynda Cheok Ka, Maiwald, Marius Joscha, Helmy, Olga E., Giordano, Anthony J., and Brodie, Jedediah F.

Subjects
MOUNTAIN forests, HABITAT destruction, FOREST productivity, LEOPARD, HABITATS, OIL palm
Abstract

Sarawak is the largest state in the megadiverse country of Malaysia. Its rich biodiversity is threatened by land-use change and hunting, with mammalian carnivores particularly affected. Data on the ecology, occurrence and distribution of small carnivores are crucial to inform their effective conservation, but no large-scale assessments have previously been conducted in Sarawak. Here we examine the status of the five species of felids in Sarawak based on data from camera-trap studies over 17 years (May 2003–February 2021) across 31 study areas, including protected areas of various sizes, production forests and forest matrix within oil palm plantations. Felids were detected at 39% of 845 camera stations. The marbled cat Pardofelis marmorata and Sunda clouded leopard Neofelis diardi had higher probabilities of occurrence in protected than unprotected areas, and vice versa for the leopard cat Prionailurus bengalensis and bay cat Catopuma badia. The marbled and bay cats were mostly diurnal, and the leopard cat was predominantly nocturnal; activity patterns did not substantively differ between protected and unprotected sites. The probabilities of occurrence of marbled and bay cats increased with greater distance from roads. The leopard cat and flat-headed cat Prionailurus planiceps were more likely, and the clouded leopard less likely, to occur near rivers. Flat-headed cats preferred peat swamp forest, bay cats lowland forest, and marbled cats and clouded leopards occurred in both lowland and montane forest. Felids may tolerate higher elevations to avoid anthropogenic disturbance; therefore, it is critical to preserve lowland and mid-elevation habitats that provide refugia from climate change and the destruction of lowland habitat. [ABSTRACT FROM AUTHOR]

Published
2023
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15. Pangolins in global camera trap data:Implications for ecological monitoring

Author

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, Preez, Byron du, Ebang-Mbele, Alex, Edwards, Sarah, Fairet, Emilie, Frechette, Jackson L., Garside, Adrian, Gibson, Luke, Giordano, Anthony, Veeraswami Gopi, Govindan, Granados, Alys, Gubbi, Sanjay, Harich, Franziska, Haurez, Barbara, Havmøller, 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, Tim, Olson, David, Orbell, Christopher, Poulsen, John, Ramesh, Tharmalingam, Reeder, Dee Ann, 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, Preez, Byron du, Ebang-Mbele, Alex, Edwards, Sarah, Fairet, Emilie, Frechette, Jackson L., Garside, Adrian, Gibson, Luke, Giordano, Anthony, Veeraswami Gopi, Govindan, Granados, Alys, Gubbi, Sanjay, Harich, Franziska, Haurez, Barbara, Havmøller, 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, Tim, Olson, David, Orbell, Christopher, Poulsen, John, Ramesh, Tharmalingam, Reeder, Dee Ann, 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 non-discriminatory 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 methodologic

Published
2019

16. Pangolins in global camera trap data: Implications for ecological monitoring

Author

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
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17. Pangolins in global camera trap data: Implications for ecological monitoring

Author

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

18. Pangolins in global camera trap data: Implications for ecological monitoring

Author

Khwaja, Hannah, primary, Buchan, Claire, additional, Wearn, Oliver R., additional, Bahaa-el-din, Laila, additional, Bantlin, Drew, additional, Bernard, Henry, additional, Bitariho, Robert, additional, Bohm, Torsten, additional, Borah, Jimmy, additional, Brodie, Jedediah, additional, Chutipong, Wanlop, additional, Preez, Byron du, additional, Ebang-Mbele, Alex, additional, Edwards, Sarah, additional, Fairet, Emilie, additional, Frechette, Jackson L., additional, Garside, Adrian, additional, Gibson, Luke, additional, Giordano, Anthony, additional, Veeraswami Gopi, Govindan, additional, Granados, Alys, additional, Gubbi, Sanjay, additional, Harich, Franziska, additional, Haurez, Barbara, additional, Havmøller, Rasmus W., additional, Helmy, Olga, additional, Isbell, Lynne A., additional, Jenks, Kate, additional, Kalle, Riddhika, additional, Kamjing, Anucha, additional, Khamcha, Daphawan, additional, Kiebou-Opepa, Cisquet, additional, Kinnaird, Margaret, additional, Kruger, Caroline, additional, Laudisoit, Anne, additional, Lynam, Antony, additional, Macdonald, Suzanne E., additional, Mathai, John, additional, Sienne, Julia Metsio, additional, Meier, Amelia, additional, Mills, David, additional, Mohd-Azlan, Jayasilan, additional, Nakashima, Yoshihiro, additional, Nash, Helen C., additional, Ngoprasert, Dusit, additional, Nguyen, An, additional, O’Brien, Tim, additional, Olson, David, additional, Orbell, Christopher, additional, Poulsen, John, additional, Ramesh, Tharmalingam, additional, Reeder, DeeAnn, additional, Reyna, Rafael, additional, Rich, Lindsey N., additional, Rode-Margono, Johanna, additional, Rovero, Francesco, additional, Sheil, Douglas, additional, Shirley, Matthew H., additional, Stratford, Ken, additional, Sukumal, Niti, additional, Suwanrat, Saranphat, additional, Tantipisanuh, Naruemon, additional, Tilker, Andrew, additional, Van Berkel, Tim, additional, Van der Weyde, Leanne K., additional, Varney, Matthew, additional, Weise, Florian, additional, Wiesel, Ingrid, additional, Wilting, Andreas, additional, Wong, Seth T., additional, Waterman, Carly, additional, and Challender, Daniel W.S., additional

Published
2019
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24. Evidence of Climate-Induced Range Contractions in Bull Trout Salvelinus confluentus in a Rocky Mountain Watershed, U.S.A.

Author

Eby, Lisa A., Helmy, Olga, Holsinger, Lisa M., and Young, Michael K.

Subjects
*BULL trout, *CLIMATE change, *CLASSIFICATION of fish, *GLOBAL warming, *WATER temperature, *HABITATS
Abstract

Many freshwater fish species are considered vulnerable to stream temperature warming associated with climate change because they are ectothermic, yet there are surprisingly few studies documenting changes in distributions. Streams and rivers in the U.S. Rocky Mountains have been warming for several decades. At the same time these systems have been experiencing an increase in the severity and frequency of wildfires, which often results in habitat changes including increased water temperatures. We resampled 74 sites across a Rocky Mountain watershed 17 to 20 years after initial samples to determine whether there were trends in bull trout occurrence associated with temperature, wildfire, or other habitat variables. We found that site abandonment probabilities (0.36) were significantly higher than colonization probabilities (0.13), which indicated a reduction in the number of occupied sites. Site abandonment probabilities were greater at low elevations with warm temperatures. Other covariates, such as the presence of wildfire, nonnative brook trout, proximity to areas with many adults, and various stream habitat descriptors, were not associated with changes in probability of occupancy. Higher abandonment probabilities at low elevation for bull trout provide initial evidence validating the predictions made by bioclimatic models that bull trout populations will retreat to higher, cooler thermal refuges as water temperatures increase. The geographic breadth of these declines across the region is unknown but the approach of revisiting historical sites using an occupancy framework provides a useful template for additional assessments. [ABSTRACT FROM AUTHOR]

Published
2014
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