Mapping extinction debt highlights conservation opportunities for birds and mammals in the south American Chaco
Habitat loss is the primary cause of local extinctions. Yet, there is considerable uncertainty regarding how fast species respond to habitat loss, and how time‐delayed responses vary in space. We focused on the Argentine Dry Chaco (c. 32 million ha), a global deforestation hotspot, and tested for t...
| Autores principales: | , , , , , , , , |
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| Formato: | info:eu-repo/semantics/article |
| Lenguaje: | Inglés |
| Publicado: |
2018
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| Acceso en línea: | http://hdl.handle.net/20.500.12123/2202 https://besjournals.onlinelibrary.wiley.com/doi/full/10.1111/1365-2664.13074 https://doi.org/10.1111/1365-2664.13074 |
| _version_ | 1855034921407479808 |
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| author | Semper-Pascal, Asunción Macchi, Leandro Sabatini, Francesco María Decarre, Julieta Baumann, Matthias Blendinger, Pedro Gerardo Gomez Valencia, Bibiana Mastrangelo, Matías Enrique Kuemmerle, Tobias |
| author_browse | Baumann, Matthias Blendinger, Pedro Gerardo Decarre, Julieta Gomez Valencia, Bibiana Kuemmerle, Tobias Macchi, Leandro Mastrangelo, Matías Enrique Sabatini, Francesco María Semper-Pascal, Asunción |
| author_facet | Semper-Pascal, Asunción Macchi, Leandro Sabatini, Francesco María Decarre, Julieta Baumann, Matthias Blendinger, Pedro Gerardo Gomez Valencia, Bibiana Mastrangelo, Matías Enrique Kuemmerle, Tobias |
| author_sort | Semper-Pascal, Asunción |
| collection | INTA Digital |
| description | Habitat loss is the primary cause of local extinctions. Yet, there is considerable uncertainty regarding how fast species respond to habitat loss, and how time‐delayed responses vary in space.
We focused on the Argentine Dry Chaco (c. 32 million ha), a global deforestation hotspot, and tested for time‐delayed response of bird and mammal communities to landscape transformation. We quantified the magnitude of extinction debt by modelling contemporary species richness as a function of either contemporary or past (2000 and 1985) landscape patterns. We then used these models to map communities' extinction debt.
We found strong evidence for an extinction debt: landscape structure from 2000 explained contemporary species richness of birds and mammals better than contemporary and 1985 landscapes. This suggests time‐delayed responses between 10 and 25 years. Extinction debt was especially strong for forest specialists.
Projecting our models across the Chaco highlighted areas where future local extinctions due to unpaid extinction debt are likely. Areas recently converted to agriculture had highest extinction debt, regardless of the post‐conversion land use. Few local extinctions were predicted in areas with remaining larger forest patches.
Synthesis and applications. The evidence for an unpaid extinction debt in the Argentine Dry Chaco provides a substantial window of opportunity for averting local biodiversity losses. However, this window may close rapidly if conservation activities such as habitat restoration are not implemented swiftly. Our extinction debt maps highlight areas where such conservation activities should be implemented. |
| format | info:eu-repo/semantics/article |
| id | INTA2202 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| record_format | dspace |
| spelling | INTA22022024-10-08T13:30:40Z Mapping extinction debt highlights conservation opportunities for birds and mammals in the south American Chaco Semper-Pascal, Asunción Macchi, Leandro Sabatini, Francesco María Decarre, Julieta Baumann, Matthias Blendinger, Pedro Gerardo Gomez Valencia, Bibiana Mastrangelo, Matías Enrique Kuemmerle, Tobias Habitat Pájaros Mamíferos Conservación de la Naturaleza Habitats Birds Mammals Nature Conservation Región Chaqueña Aves Habitat loss is the primary cause of local extinctions. Yet, there is considerable uncertainty regarding how fast species respond to habitat loss, and how time‐delayed responses vary in space. We focused on the Argentine Dry Chaco (c. 32 million ha), a global deforestation hotspot, and tested for time‐delayed response of bird and mammal communities to landscape transformation. We quantified the magnitude of extinction debt by modelling contemporary species richness as a function of either contemporary or past (2000 and 1985) landscape patterns. We then used these models to map communities' extinction debt. We found strong evidence for an extinction debt: landscape structure from 2000 explained contemporary species richness of birds and mammals better than contemporary and 1985 landscapes. This suggests time‐delayed responses between 10 and 25 years. Extinction debt was especially strong for forest specialists. Projecting our models across the Chaco highlighted areas where future local extinctions due to unpaid extinction debt are likely. Areas recently converted to agriculture had highest extinction debt, regardless of the post‐conversion land use. Few local extinctions were predicted in areas with remaining larger forest patches. Synthesis and applications. The evidence for an unpaid extinction debt in the Argentine Dry Chaco provides a substantial window of opportunity for averting local biodiversity losses. However, this window may close rapidly if conservation activities such as habitat restoration are not implemented swiftly. Our extinction debt maps highlight areas where such conservation activities should be implemented. Inst. de Recursos Biológicos Fil: Semper-Pascal, Asunción. Humboldt-University Berlin. Geography Department; Alemania Fil: Macchi, Leandro. Humboldt-University Berlin. Geography Department; Alemania. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Instituto de Ecología Regional; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tucumán; Argentina Fil: Sabatini, Francesco María. Humboldt-University Berlin. Geography Department; Alemania Fil: Decarre, Julieta. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Recursos Biológicos; Argentina Fil: Baumann, Matthias. Humboldt-University Berlin. Geography Department; Alemania Fil: Blendinger, Pedro G. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Instituto de Ecología Regional; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tucumán; Argentina. Fil: Gomez Valencia, Bibiana. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Grupo de Estudios de Sistemas Ecológicos en Ambientes Agrícolas; Argentina Fil: Mastrangelo, Matias Enrique. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias. Grupo de Estudios de Agroecosistemas y Paisajes Rurales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Kuemmerle, Tobias. Humboldt-University Berlin. Geography Department; Alemania. Humboldt-University Berlin. Integrative Research Institute for Transformations in Human Environment Systems; Alemania 2018-04-09T15:47:05Z 2018-04-09T15:47:05Z 2018-02 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/2202 https://besjournals.onlinelibrary.wiley.com/doi/full/10.1111/1365-2664.13074 0021-8901 1365-2664 https://doi.org/10.1111/1365-2664.13074 eng info:eu-repo/semantics/restrictedAccess application/pdf Journal of Applied Ecology February 2018 |
| spellingShingle | Habitat Pájaros Mamíferos Conservación de la Naturaleza Habitats Birds Mammals Nature Conservation Región Chaqueña Aves Semper-Pascal, Asunción Macchi, Leandro Sabatini, Francesco María Decarre, Julieta Baumann, Matthias Blendinger, Pedro Gerardo Gomez Valencia, Bibiana Mastrangelo, Matías Enrique Kuemmerle, Tobias Mapping extinction debt highlights conservation opportunities for birds and mammals in the south American Chaco |
| title | Mapping extinction debt highlights conservation opportunities for birds and mammals in the south American Chaco |
| title_full | Mapping extinction debt highlights conservation opportunities for birds and mammals in the south American Chaco |
| title_fullStr | Mapping extinction debt highlights conservation opportunities for birds and mammals in the south American Chaco |
| title_full_unstemmed | Mapping extinction debt highlights conservation opportunities for birds and mammals in the south American Chaco |
| title_short | Mapping extinction debt highlights conservation opportunities for birds and mammals in the south American Chaco |
| title_sort | mapping extinction debt highlights conservation opportunities for birds and mammals in the south american chaco |
| topic | Habitat Pájaros Mamíferos Conservación de la Naturaleza Habitats Birds Mammals Nature Conservation Región Chaqueña Aves |
| url | http://hdl.handle.net/20.500.12123/2202 https://besjournals.onlinelibrary.wiley.com/doi/full/10.1111/1365-2664.13074 https://doi.org/10.1111/1365-2664.13074 |
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