Multi-season regional analysis of multi-species occupancy : implications for bird conservation in agricultural lands in East-Central Argentina
Rapid expansion and intensification of agriculture create challenges for the conservation of biodiversity and associated ecosystem services. In Argentina, the total row crop planted area has increased in recent decades with the expansion of soybean cultivation, homogenizing the landscape. In 2003 we...
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| Format: | Artículo |
| Language: | Inglés |
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2017
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| Online Access: | http://hdl.handle.net/20.500.12123/1368 http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0130874#sec002 https://doi.org/10.1371/journal.pone.0130874 |
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| author | Goijman, Andrea Paula Conroy, Michael J. Bernardos, Jaime Nicolás Zaccagnini, Maria Elena |
| author_browse | Bernardos, Jaime Nicolás Conroy, Michael J. Goijman, Andrea Paula Zaccagnini, Maria Elena |
| author_facet | Goijman, Andrea Paula Conroy, Michael J. Bernardos, Jaime Nicolás Zaccagnini, Maria Elena |
| author_sort | Goijman, Andrea Paula |
| collection | INTA Digital |
| description | Rapid expansion and intensification of agriculture create challenges for the conservation of biodiversity and associated ecosystem services. In Argentina, the total row crop planted area has increased in recent decades with the expansion of soybean cultivation, homogenizing the landscape. In 2003 we started the first long-term, large-scale bird monitoring program in agroecosystems of central Argentina, in portions of the Pampas and Espinal ecoregions. Using data from this program, we evaluated the effect of land use and cover extent on birds between 2003-2012, accounting for imperfect detection probabilities using a Bayesian hierarchical, multi-species and multi-season occupancy model. We tested predictions that species diversity is positively related to habitat heterogeneity, which in intensified agroecosystems is thought to be mediated by food availability; thus the extent of land use and cover is predicted to affect foraging guilds differently. We also infer about ecosystem services provisioning and inform management recommendations for conservation of birds. Overall our results support the predictions. Although many species within each guild responded differently to land use and native forest cover, we identified generalities for most trophic guilds. For example, granivorous gleaners, ground insectivores and omnivores responded negatively to high proportions of soybean, while insectivore gleaners and aerial foragers seemed more tolerant. Habitat heterogeneity would likely benefit most species in an intensified agroecosystem, and can be achieved with a diversity of crops, pastures, and natural areas within the landscape. Although most studied species are insectivores, potentially beneficial for pest control, some guilds such as ground insectivores are poorly represented, suggesting that agricultural intensification reduces ecological functions, which may be recovered through management. Continuation of the bird monitoring program will allow us to continue to inform for conservation of birds in agroecosystems, identify research needed to reduce key uncertainties, and anticipate the effects of changes in agriculture in central Argentina. |
| format | Artículo |
| id | INTA1368 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2017 |
| publishDateRange | 2017 |
| publishDateSort | 2017 |
| record_format | dspace |
| spelling | INTA13682018-02-19T17:59:17Z Multi-season regional analysis of multi-species occupancy : implications for bird conservation in agricultural lands in East-Central Argentina Goijman, Andrea Paula Conroy, Michael J. Bernardos, Jaime Nicolás Zaccagnini, Maria Elena Aves Tierras Agrícolas Conservación de la Naturaleza Ecosistema Farmland Nature Conservation Ecosystems Conservation of Birds Conservación de Aves Rapid expansion and intensification of agriculture create challenges for the conservation of biodiversity and associated ecosystem services. In Argentina, the total row crop planted area has increased in recent decades with the expansion of soybean cultivation, homogenizing the landscape. In 2003 we started the first long-term, large-scale bird monitoring program in agroecosystems of central Argentina, in portions of the Pampas and Espinal ecoregions. Using data from this program, we evaluated the effect of land use and cover extent on birds between 2003-2012, accounting for imperfect detection probabilities using a Bayesian hierarchical, multi-species and multi-season occupancy model. We tested predictions that species diversity is positively related to habitat heterogeneity, which in intensified agroecosystems is thought to be mediated by food availability; thus the extent of land use and cover is predicted to affect foraging guilds differently. We also infer about ecosystem services provisioning and inform management recommendations for conservation of birds. Overall our results support the predictions. Although many species within each guild responded differently to land use and native forest cover, we identified generalities for most trophic guilds. For example, granivorous gleaners, ground insectivores and omnivores responded negatively to high proportions of soybean, while insectivore gleaners and aerial foragers seemed more tolerant. Habitat heterogeneity would likely benefit most species in an intensified agroecosystem, and can be achieved with a diversity of crops, pastures, and natural areas within the landscape. Although most studied species are insectivores, potentially beneficial for pest control, some guilds such as ground insectivores are poorly represented, suggesting that agricultural intensification reduces ecological functions, which may be recovered through management. Continuation of the bird monitoring program will allow us to continue to inform for conservation of birds in agroecosystems, identify research needed to reduce key uncertainties, and anticipate the effects of changes in agriculture in central Argentina. Fil: Goijman, Andrea Paula. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Recursos Biológicos; Argentina. University of Georgia. D.B. Warnell School of Forestry and Natural Resources; Estados Unidos Fil: Conroy, Michael J. University of Georgia. D.B. Warnell School of Forestry and Natural Resources; Estados Unidos Fil: Bernardos, Jaime Nicolás. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Anguil; Argentina Fil: Zaccagnini, Maria Elena. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Recursos Biológicos; Argentina 2017-09-29T18:37:58Z 2017-09-29T18:37:58Z 2015-07-18 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/1368 http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0130874#sec002 1932-6203 https://doi.org/10.1371/journal.pone.0130874 eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Argentina Plos One (June 18, 2015) |
| spellingShingle | Aves Tierras Agrícolas Conservación de la Naturaleza Ecosistema Farmland Nature Conservation Ecosystems Conservation of Birds Conservación de Aves Goijman, Andrea Paula Conroy, Michael J. Bernardos, Jaime Nicolás Zaccagnini, Maria Elena Multi-season regional analysis of multi-species occupancy : implications for bird conservation in agricultural lands in East-Central Argentina |
| title | Multi-season regional analysis of multi-species occupancy : implications for bird conservation in agricultural lands in East-Central Argentina |
| title_full | Multi-season regional analysis of multi-species occupancy : implications for bird conservation in agricultural lands in East-Central Argentina |
| title_fullStr | Multi-season regional analysis of multi-species occupancy : implications for bird conservation in agricultural lands in East-Central Argentina |
| title_full_unstemmed | Multi-season regional analysis of multi-species occupancy : implications for bird conservation in agricultural lands in East-Central Argentina |
| title_short | Multi-season regional analysis of multi-species occupancy : implications for bird conservation in agricultural lands in East-Central Argentina |
| title_sort | multi season regional analysis of multi species occupancy implications for bird conservation in agricultural lands in east central argentina |
| topic | Aves Tierras Agrícolas Conservación de la Naturaleza Ecosistema Farmland Nature Conservation Ecosystems Conservation of Birds Conservación de Aves |
| url | http://hdl.handle.net/20.500.12123/1368 http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0130874#sec002 https://doi.org/10.1371/journal.pone.0130874 |
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