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1. Ongoing declines for the world’s amphibians in the face of emerging threats

Author

Luedtke, Jennifer A., Chanson, Janice, Neam, Kelsey, Hobin, Louise, Maciel, Adriano O., Catenazzi, Alessandro, Borzée, Amaël, Hamidy, Amir, Aowphol, Anchalee, Jean, Anderson, Sosa-Bartuano, Ángel, Fong G., Ansel, de Silva, Anslem, Fouquet, Antoine, Angulo, Ariadne, Kidov, Artem A., Muñoz Saravia, Arturo, Diesmos, Arvin C., Tominaga, Atsushi, Shrestha, Biraj, Gratwicke, Brian, Tjaturadi, Burhan, Martínez Rivera, Carlos C., Vásquez Almazán, Carlos R., Señaris, Celsa, Chandramouli, S. R., Strüssmann, Christine, Cortez Fernández, Claudia Fabiola, Azat, Claudio, Hoskin, Conrad J., Hilton-Taylor, Craig, Whyte, Damion L., Gower, David J., Olson, Deanna H., Cisneros-Heredia, Diego F., Santana, Diego José, Nagombi, Elizah, Najafi-Majd, Elnaz, Quah, Evan S. H., Bolaños, Federico, Xie, Feng, Brusquetti, Francisco, Álvarez, Francisco S., Andreone, Franco, Glaw, Frank, Castañeda, Franklin Enrique, Kraus, Fred, Parra-Olea, Gabriela, Chaves, Gerardo, Medina-Rangel, Guido F., González-Durán, Gustavo, Ortega-Andrade, H. Mauricio, Machado, Iberê F., Das, Indraneil, Dias, Iuri Ribeiro, Urbina-Cardona, J. Nicolas, Crnobrnja-Isailović, Jelka, Yang, Jian-Huan, Jianping, Jiang, Wangyal, Jigme Tshelthrim, Rowley, Jodi J. L., Measey, John, Vasudevan, Karthikeyan, Chan, Kin Onn, Gururaja, Kotambylu Vasudeva, Ovaska, Kristiina, Warr, Lauren C., Canseco-Márquez, Luis, Toledo, Luís Felipe, Díaz, Luis M., Khan, M. Monirul H., Meegaskumbura, Madhava, Acevedo, Manuel E., Napoli, Marcelo Felgueiras, Ponce, Marcos A., Vaira, Marcos, Lampo, Margarita, Yánez-Muñoz, Mario H., Scherz, Mark D., Rödel, Mark-Oliver, Matsui, Masafumi, Fildor, Maxon, Kusrini, Mirza D., Ahmed, Mohammad Firoz, Rais, Muhammad, Kouamé, N’Goran G., García, Nieves, Gonwouo, Nono Legrand, Burrowes, Patricia A., Imbun, Paul Y., Wagner, Philipp, Kok, Philippe J. R., Joglar, Rafael L., Auguste, Renoir J., Brandão, Reuber Albuquerque, Ibáñez, Roberto, von May, Rudolf, Hedges, S. Blair, Biju, S. D., Ganesh, S. R., Wren, Sally, Das, Sandeep, Flechas, Sandra V., Ashpole, Sara L., Robleto-Hernández, Silvia J., Loader, Simon P., Incháustegui, Sixto J., Garg, Sonali, Phimmachak, Somphouthone, Richards, Stephen J., Slimani, Tahar, Osborne-Naikatini, Tamara, Abreu-Jardim, Tatianne P. F., Condez, Thais H., De Carvalho, Thiago R., Cutajar, Timothy P., Pierson, Todd W., Nguyen, Truong Q., Kaya, Uğur, Yuan, Zhiyong, Long, Barney, Langhammer, Penny, and Stuart, Simon N.

Published
2023
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2. Author Correction: Ongoing declines for the world’s amphibians in the face of emerging threats

Author

Luedtke, Jennifer A., Chanson, Janice, Neam, Kelsey, Hobin, Louise, Maciel, Adriano O., Catenazzi, Alessandro, Borzée, Amaël, Hamidy, Amir, Aowphol, Anchalee, Jean, Anderson, Sosa-Bartuano, Ángel, Fong G., Ansel, de Silva, Anslem, Fouquet, Antoine, Angulo, Ariadne, Kidov, Artem A., Muñoz Saravia, Arturo, Diesmos, Arvin C., Tominaga, Atsushi, Shrestha, Biraj, Gratwicke, Brian, Tjaturadi, Burhan, Martínez Rivera, Carlos C., Vásquez Almazán, Carlos R., Señaris, Celsa, Chandramouli, S. R., Strüssmann, Christine, Cortez Fernández, Claudia Fabiola, Azat, Claudio, Hoskin, Conrad J., Hilton-Taylor, Craig, Whyte, Damion L., Gower, David J., Olson, Deanna H., Cisneros-Heredia, Diego F., Santana, Diego José, Nagombi, Elizah, Najafi-Majd, Elnaz, Quah, Evan S. H., Bolaños, Federico, Xie, Feng, Brusquetti, Francisco, Álvarez, Francisco S., Andreone, Franco, Glaw, Frank, Castañeda, Franklin Enrique, Kraus, Fred, Parra-Olea, Gabriela, Chaves, Gerardo, Medina-Rangel, Guido F., González-Durán, Gustavo, Ortega-Andrade, H. Mauricio, Machado, Iberê F., Das, Indraneil, Dias, Iuri Ribeiro, Urbina-Cardona, J. Nicolas, Crnobrnja-Isailović, Jelka, Yang, Jian-Huan, Jianping, Jiang, Wangyal, Jigme Tshelthrim, Rowley, Jodi J. L., Measey, John, Vasudevan, Karthikeyan, Chan, Kin Onn, Gururaja, Kotambylu Vasudeva, Ovaska, Kristiina, Warr, Lauren C., Canseco-Márquez, Luis, Toledo, Luís Felipe, Díaz, Luis M., Khan, M. Monirul H., Meegaskumbura, Madhava, Acevedo, Manuel E., Napoli, Marcelo Felgueiras, Ponce, Marcos A., Vaira, Marcos, Lampo, Margarita, Yánez-Muñoz, Mario H., Scherz, Mark D., Rödel, Mark-Oliver, Matsui, Masafumi, Fildor, Maxon, Kusrini, Mirza D., Ahmed, Mohammad Firoz, Rais, Muhammad, Kouamé, N’Goran G., García, Nieves, Gonwouo, Nono Legrand, Burrowes, Patricia A., Imbun, Paul Y., Wagner, Philipp, Kok, Philippe J. R., Joglar, Rafael L., Auguste, Renoir J., Brandão, Reuber Albuquerque, Ibáñez, Roberto, von May, Rudolf, Hedges, S. Blair, Biju, S. D., Ganesh, S. R., Wren, Sally, Das, Sandeep, Flechas, Sandra V., Ashpole, Sara L., Robleto-Hernández, Silvia J., Loader, Simon P., Incháustegui, Sixto J., Garg, Sonali, Phimmachak, Somphouthone, Richards, Stephen J., Slimani, Tahar, Osborne-Naikatini, Tamara, Abreu-Jardim, Tatianne P. F., Condez, Thais H., De Carvalho, Thiago R., Cutajar, Timothy P., Pierson, Todd W., Nguyen, Truong Q., Kaya, Uğur, Yuan, Zhiyong, Long, Barney, Langhammer, Penny, and Stuart, Simon N.

Published
2024
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3. Ongoing declines for the world’s amphibians in the face of emerging threats:[Inkl. Correction]

Author

Luedtke, Jennifer A., Chanson, Janice, Neam, Kelsey, Hobin, Louise, Maciel, Adriano O., Catenazzi, Alessandro, Borzée, Amaël, Hamidy, Amir, Aowphol, Anchalee, Jean, Anderson, Sosa-Bartuano, Ángel, Fong G., Ansel, de Silva, Anslem, Fouquet, Antoine, Angulo, Ariadne, Kidov, Artem A., Muñoz Saravia, Arturo, Diesmos, Arvin C., Tominaga, Atsushi, Shrestha, Biraj, Gratwicke, Brian, Tjaturadi, Burhan, Martínez Rivera, Carlos C., Vásquez Almazán, Carlos R., Señaris, Celsa, Chandramouli, S. R., Strüssmann, Christine, Cortez Fernández, Claudia Fabiola, Azat, Claudio, Hoskin, Conrad J., Hilton-Taylor, Craig, Whyte, Damion L., Gower, David J., Olson, Deanna H., Cisneros-Heredia, Diego F., Santana, Diego José, Nagombi, Elizah, Najafi-Majd, Elnaz, Quah, Evan S. H., Bolaños, Federico, Xie, Feng, Brusquetti, Francisco, Álvarez, Francisco S., Andreone, Franco, Glaw, Frank, Castañeda, Franklin Enrique, Kraus, Fred, Parra-Olea, Gabriela, Chaves, Gerardo, Medina-Rangel, Guido F., González-Durán, Gustavo, Ortega-Andrade, H. Mauricio, Machado, Iberê F., Das, Indraneil, Dias, Iuri Ribeiro, Urbina-Cardona, J. Nicolas, Crnobrnja-Isailović, Jelka, Yang, Jian-Huan, Jianping, Jiang, Wangyal, Jigme Tshelthrim, Rowley, Jodi J.L., Measey, John, Vasudevan, Karthikeyan, Chan, Kin Onn, Gururaja, Kotambylu Vasudeva, Ovaska, Kristiina, Warr, Lauren C., Canseco-Márquez, Luis, Toledo, Luís Felipe, Díaz, Luis M., Khan, M. Monirul H., Meegaskumbura, Madhava, Acevedo, Manuel E., Napoli, Marcelo Felgueiras, Ponce, Marcos A., Vaira, Marcos, Lampo, Margarita, Yánez-Muñoz, Mario H., Scherz, Mark D., Rödel, Mark-Oliver, Matsui, Masafumi, Fildor, Maxon, Kusrini, Mirza D., Ahmed, Mohammad Firoz, Rais, Muhammad, Kouamé, N’Goran G. G., García, Nieves, Gonwouo, Nono Legrand, Burrowes, Patricia A., Imbun, Paul Y., Wagner, Philipp, Kok, Philippe J. R., Joglar, Rafael L., Auguste, Renoir J., Brandão, Reuber Albuquerque, Ibáñez, Roberto, von May, Rudolf, Hedges, S. Blair, Biju, S. D., Ganesh, S. R., Wren, Sally, Das, Sandeep, Flechas, Sandra V., Ashpole, Sara L., Robleto-Hernández, Silvia J., Loader, Simon P., Incháustegui, Sixto J., Garg, Sonali, Phimmachak, Soumphthone, Richards, Stephen J., Slimani, Tahar, Osborne-Naikatini, Tamara, Abreu-Jardim, Tatianne P. F., Condez, Thais H., De Carvalho, Thiago R., Cutajar, Timothy P., Pierson, Todd W., Nguyen, Truong Q., Kaya, Uğur, Yuan, Zhiyong, Long, Barney, Langhammer, Penny, Stuart, Simon N., Luedtke, Jennifer A., Chanson, Janice, Neam, Kelsey, Hobin, Louise, Maciel, Adriano O., Catenazzi, Alessandro, Borzée, Amaël, Hamidy, Amir, Aowphol, Anchalee, Jean, Anderson, Sosa-Bartuano, Ángel, Fong G., Ansel, de Silva, Anslem, Fouquet, Antoine, Angulo, Ariadne, Kidov, Artem A., Muñoz Saravia, Arturo, Diesmos, Arvin C., Tominaga, Atsushi, Shrestha, Biraj, Gratwicke, Brian, Tjaturadi, Burhan, Martínez Rivera, Carlos C., Vásquez Almazán, Carlos R., Señaris, Celsa, Chandramouli, S. R., Strüssmann, Christine, Cortez Fernández, Claudia Fabiola, Azat, Claudio, Hoskin, Conrad J., Hilton-Taylor, Craig, Whyte, Damion L., Gower, David J., Olson, Deanna H., Cisneros-Heredia, Diego F., Santana, Diego José, Nagombi, Elizah, Najafi-Majd, Elnaz, Quah, Evan S. H., Bolaños, Federico, Xie, Feng, Brusquetti, Francisco, Álvarez, Francisco S., Andreone, Franco, Glaw, Frank, Castañeda, Franklin Enrique, Kraus, Fred, Parra-Olea, Gabriela, Chaves, Gerardo, Medina-Rangel, Guido F., González-Durán, Gustavo, Ortega-Andrade, H. Mauricio, Machado, Iberê F., Das, Indraneil, Dias, Iuri Ribeiro, Urbina-Cardona, J. Nicolas, Crnobrnja-Isailović, Jelka, Yang, Jian-Huan, Jianping, Jiang, Wangyal, Jigme Tshelthrim, Rowley, Jodi J.L., Measey, John, Vasudevan, Karthikeyan, Chan, Kin Onn, Gururaja, Kotambylu Vasudeva, Ovaska, Kristiina, Warr, Lauren C., Canseco-Márquez, Luis, Toledo, Luís Felipe, Díaz, Luis M., Khan, M. Monirul H., Meegaskumbura, Madhava, Acevedo, Manuel E., Napoli, Marcelo Felgueiras, Ponce, Marcos A., Vaira, Marcos, Lampo, Margarita, Yánez-Muñoz, Mario H., Scherz, Mark D., Rödel, Mark-Oliver, Matsui, Masafumi, Fildor, Maxon, Kusrini, Mirza D., Ahmed, Mohammad Firoz, Rais, Muhammad, Kouamé, N’Goran G. G., García, Nieves, Gonwouo, Nono Legrand, Burrowes, Patricia A., Imbun, Paul Y., Wagner, Philipp, Kok, Philippe J. R., Joglar, Rafael L., Auguste, Renoir J., Brandão, Reuber Albuquerque, Ibáñez, Roberto, von May, Rudolf, Hedges, S. Blair, Biju, S. D., Ganesh, S. R., Wren, Sally, Das, Sandeep, Flechas, Sandra V., Ashpole, Sara L., Robleto-Hernández, Silvia J., Loader, Simon P., Incháustegui, Sixto J., Garg, Sonali, Phimmachak, Soumphthone, Richards, Stephen J., Slimani, Tahar, Osborne-Naikatini, Tamara, Abreu-Jardim, Tatianne P. F., Condez, Thais H., De Carvalho, Thiago R., Cutajar, Timothy P., Pierson, Todd W., Nguyen, Truong Q., Kaya, Uğur, Yuan, Zhiyong, Long, Barney, Langhammer, Penny, and Stuart, Simon N.

Abstract

Systematic assessments of species extinction risk at regular intervals are necessary for informing conservation action1,2. Ongoing developments in taxonomy, threatening processes and research further underscore the need for reassessment3,4. Here we report the findings of the second Global Amphibian Assessment, evaluating 8,011 species for the International Union for Conservation of Nature Red List of Threatened Species. We find that amphibians are the most threatened vertebrate class (40.7% of species are globally threatened). The updated Red List Index shows that the status of amphibians is deteriorating globally, particularly for salamanders and in the Neotropics. Disease and habitat loss drove 91% of status deteriorations between 1980 and 2004. Ongoing and projected climate change effects are now of increasing concern, driving 39% of status deteriorations since 2004, followed by habitat loss (37%). Although signs of species recoveries incentivize immediate conservation action, scaled-up investment is urgently needed to reverse the current trends.

Published
2023

6. Paedomorphic Blotched Tiger Salamander (Ambystoma mavortium melanostictum) in ovo counts, British Columbia, Canada.

Author

ASHPOLE, SARA L. and NATI, MARISSA R.

Abstract

Reproductively mature larval morphs, known as paedogens, are a rare occurrence in Blotched Tiger Salamander (Ambystoma mavortium melanostictum). The Southern Mountain population of this subspecies, confined to the southern interior of British Columbia, is listed federally as Endangered and has been facing increasing pressures from anthropogenic stressors in both their aquatic and terrestrial landscapes. In 2017, we examined a subset of 36 frozen Blotched Tiger Salamander paedogens collected in September 1985 after rotenone treatment in preparation for a recreational fishery near Oliver, British Columbia. We estimated total in ovo numbers in nine gravid individuals to gain insight into paedogen reproductive condition. The number of eggs per individual averaged 227 ± 109 [SD]; range 28-421), with larger dark eggs accounting for 133 ± 69 and smaller pale eggs (possibly follicles or colour may be an artifact of storage) accounting for 94 ± 49. Salamanders were collected in September after the expected egg-laying period for the terrestrial form (early spring); thus, the reproductive stage of the eggs is unclear, but is assumed to be post-breeding and representative of developing eggs and follicles. Canadian data on in ovo counts within the body cavity have not been reported for Blotched Tiger Salamander paedogens and our study provides valuable information on the reproductive condition of paedogens. Although terrestrial forms have been observed, the presence of paedogens in the treated wetland has yet to be detected. [ABSTRACT FROM AUTHOR]

Published
2021

7. Conservation of herpetofauna in northern landscapes: Threats and challenges from a Canadian perspective

Author

Lesbarrères, David, primary, Ashpole, Sara L., additional, Bishop, Christine A., additional, Blouin-Demers, Gabriel, additional, Brooks, Ronald J., additional, Echaubard, Pierre, additional, Govindarajulu, Purnima, additional, Green, David M., additional, Hecnar, Stephen J., additional, Herman, Tom, additional, Houlahan, Jeff, additional, Litzgus, Jacqueline D., additional, Mazerolle, Marc J., additional, Paszkowski, Cynthia A., additional, Rutherford, Pamela, additional, Schock, Danna M., additional, Storey, Kenneth B., additional, and Lougheed, Stephen C., additional

Published
2014
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9. Author Correction: Ongoing declines for the world’s amphibians in the face of emerging threats

Author

Luedtke, Jennifer A., Chanson, Janice, Neam, Kelsey, Hobin, Louise, Maciel, Adriano O., Catenazzi, Alessandro, Borzée, Amaël, Hamidy, Amir, Aowphol, Anchalee, Jean, Anderson, Sosa-Bartuano, Ángel, Fong G., Ansel, de Silva, Anslem, Fouquet, Antoine, Angulo, Ariadne, Kidov, Artem A., Muñoz Saravia, Arturo, Diesmos, Arvin C., Tominaga, Atsushi, Shrestha, Biraj, Gratwicke, Brian, Tjaturadi, Burhan, Martínez Rivera, Carlos C., Vásquez Almazán, Carlos R., Señaris, Celsa, Chandramouli, S. R., Strüssmann, Christine, Cortez Fernández, Claudia Fabiola, Azat, Claudio, Hoskin, Conrad J., Hilton-Taylor, Craig, Whyte, Damion L., Gower, David J., Olson, Deanna H., Cisneros-Heredia, Diego F., Santana, Diego José, Nagombi, Elizah, Najafi-Majd, Elnaz, Quah, Evan S. H., Bolaños, Federico, Xie, Feng, Brusquetti, Francisco, Álvarez, Francisco S., Andreone, Franco, Glaw, Frank, Castañeda, Franklin Enrique, Kraus, Fred, Parra-Olea, Gabriela, Chaves, Gerardo, Medina-Rangel, Guido F., González-Durán, Gustavo, Ortega-Andrade, H. Mauricio, Machado, Iberê F., Das, Indraneil, Dias, Iuri Ribeiro, Urbina-Cardona, J. Nicolas, Crnobrnja-Isailović, Jelka, Yang, Jian-Huan, Jianping, Jiang, Wangyal, Jigme Tshelthrim, Rowley, Jodi J. L., Measey, John, Vasudevan, Karthikeyan, Chan, Kin Onn, Gururaja, Kotambylu Vasudeva, Ovaska, Kristiina, Warr, Lauren C., Canseco-Márquez, Luis, Toledo, Luís Felipe, Díaz, Luis M., Khan, M. Monirul H., Meegaskumbura, Madhava, Acevedo, Manuel E., Napoli, Marcelo Felgueiras, Ponce, Marcos A., Vaira, Marcos, Lampo, Margarita, Yánez-Muñoz, Mario H., Scherz, Mark D., Rödel, Mark-Oliver, Matsui, Masafumi, Fildor, Maxon, Kusrini, Mirza D., Ahmed, Mohammad Firoz, Rais, Muhammad, Kouamé, N’Goran G., García, Nieves, Gonwouo, Nono Legrand, Burrowes, Patricia A., Imbun, Paul Y., Wagner, Philipp, Kok, Philippe J. R., Joglar, Rafael L., Auguste, Renoir J., Brandão, Reuber Albuquerque, Ibáñez, Roberto, von May, Rudolf, Hedges, S. Blair, Biju, S. D., Ganesh, S. R., Wren, Sally, Das, Sandeep, Flechas, Sandra V., Ashpole, Sara L., Robleto-Hernández, Silvia J., Loader, Simon P., Incháustegui, Sixto J., Garg, Sonali, Phimmachak, Somphouthone, Richards, Stephen J., Slimani, Tahar, Osborne-Naikatini, Tamara, Abreu-Jardim, Tatianne P. F., Condez, Thais H., De Carvalho, Thiago R., Cutajar, Timothy P., Pierson, Todd W., Nguyen, Truong Q., Kaya, Uğur, Yuan, Zhiyong, Long, Barney, Langhammer, Penny, and Stuart, Simon N.

Published
2023
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10. Reconnecting Amphibian Habitat through Small Pond Construction and Enhancement, South Okanagan River Valley, British Columbia, Canada.

Author

Ashpole, Sara L., Bishop, Christine A., and Murphy, Stephen D.

Subjects
*AMPHIBIAN ecology, *HABITATS
Abstract

The arid south Okanagan River Valley, British Columbia is a highly-modified landscape; where wetland and riparian habitat loss exceeds 85%, and 88% of remaining wetlands experience at least one harmful anthropogenic stressor. This multi-stressor landscape for amphibian species at risk led to a collaborative stakeholder approach for habitat restoration and species recovery. The main project goal was to increase the quantity and quality of lowland wetland habitat by reconnecting known amphibian-breeding sites with constructed and/or enhanced small ponds. Long-term amphibian monitoring data were used to determine strategic locations for wetland construction and/or enhancement. Habitat enhancement outcomes (Ntotal = 21 sites) since 2006 include 10 newly constructed ponds, enhancement of eight re-contoured ponds after historic infilling, and invasive predatory species removal at three sites. Project ponds were monitored annually (2007 to 2014) for calling frogs, the presence of eggs, and metamorphic emergence. Early signs of colonization and metamorphic success for Great Basin Spadefoot (Spea intermontana) (N = 13 sites) and Pacific treefrog (Pseudacris regilla) (N = 7 sites) populations have been observed, however no records of Blotched tiger salamanders (Ambystoma mavortium) colonization has been detected. Wetland habitat construction and enhancement have doubled the number of available fishless ponds to support breeding within the study area and engaged landowners through voluntary stewardship. Whether constructed or enhanced ponds have aided species recovery is unclear, though the colonization and successful metamorphosis of some species provides early supporting evidence that it will. [ABSTRACT FROM AUTHOR]

Published
2018
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