Conservation implications of a limited avian cross-habitat spillover in pasture lands
Increasing evidence demonstrates a role for the cross-habitat spillover process in the maintenance of biodiversity in managed agricultural landscapes. However, the mechanisms that drive this process are less well understood. In particular, it is critical to know how landscape structure modulates spi...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Boesing, Andrea Larissa [verfasserIn] Marques, Thiago Simon [verfasserIn] Martinelli, Luiz Antonio [verfasserIn] Nichols, Elizabeth [verfasserIn] Siqueira, Paulo Ricardo [verfasserIn] Beier, Christian [verfasserIn] de Camargo, Plinio Barbosa [verfasserIn] Metzger, Jean Paul [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2020 |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: Biological conservation - Amsterdam [u.a.] : Elsevier Science, 1968, 253 |
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| Übergeordnetes Werk: |
volume:253 |
| DOI / URN: |
10.1016/j.biocon.2020.108898 |
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ELV005373522 |
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| 245 | 1 | 0 | |a Conservation implications of a limited avian cross-habitat spillover in pasture lands |
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| 520 | |a Increasing evidence demonstrates a role for the cross-habitat spillover process in the maintenance of biodiversity in managed agricultural landscapes. However, the mechanisms that drive this process are less well understood. In particular, it is critical to know how landscape structure modulates spillover movements, and whether species are moving through the matrix to acquire resources or simply to disperse between habitat fragments. We tested landscape effects and food resource use within cattle pasture matrices. We used mist-nets to collect data on avian communities across 51 sampling sites, spanning a forest cover gradient. We additionally integrated stable isotopic analysis (δ13C signature) to determine the provenance of resources used (either forest - dominated by C3 plants; or pasture, dominated by C4). Bird movement across pasture matrices was extremely reduced, and bird occupation was concentrated near forest edges. There was a clear distinction of resource use according to species’ habitat preferences, with forest-species foraging predominantly in-forests, open-area species in pastures, and generalist species having more varied diets, but still relying on a large proportion of C3 sources. Forest cover was unrelated to avian spillover from forests into pastures, but positively related to C3 signatures for both forest and open-area associated species. Finally, we found that most birds moving from forests to pastures were habitat generalists (63%), and that pastures work as a barrier for forest-associated species movement. Landscapes dominated by pasture are very unfavorable to the conservation of forest species, but potentially can maintain ecosystem services from the spillover of generalist species. | ||
| 650 | 4 | |a Landscape complementation | |
| 650 | 4 | |a Landscape supplementation | |
| 650 | 4 | |a Stable isotopes | |
| 650 | 4 | |a Agricultural landscapes | |
| 650 | 4 | |a Brazilian Atlantic Forest | |
| 650 | 4 | |a Birds | |
| 700 | 1 | |a Marques, Thiago Simon |e verfasserin |4 aut | |
| 700 | 1 | |a Martinelli, Luiz Antonio |e verfasserin |4 aut | |
| 700 | 1 | |a Nichols, Elizabeth |e verfasserin |4 aut | |
| 700 | 1 | |a Siqueira, Paulo Ricardo |e verfasserin |4 aut | |
| 700 | 1 | |a Beier, Christian |e verfasserin |4 aut | |
| 700 | 1 | |a de Camargo, Plinio Barbosa |e verfasserin |4 aut | |
| 700 | 1 | |a Metzger, Jean Paul |e verfasserin |4 aut | |
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10.1016/j.biocon.2020.108898 doi (DE-627)ELV005373522 (ELSEVIER)S0006-3207(20)30956-3 DE-627 ger DE-627 rda eng 570 DE-600 BIODIV DE-30 fid 42.00 bkl Boesing, Andrea Larissa verfasserin aut Conservation implications of a limited avian cross-habitat spillover in pasture lands 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Increasing evidence demonstrates a role for the cross-habitat spillover process in the maintenance of biodiversity in managed agricultural landscapes. However, the mechanisms that drive this process are less well understood. In particular, it is critical to know how landscape structure modulates spillover movements, and whether species are moving through the matrix to acquire resources or simply to disperse between habitat fragments. We tested landscape effects and food resource use within cattle pasture matrices. We used mist-nets to collect data on avian communities across 51 sampling sites, spanning a forest cover gradient. We additionally integrated stable isotopic analysis (δ13C signature) to determine the provenance of resources used (either forest - dominated by C3 plants; or pasture, dominated by C4). Bird movement across pasture matrices was extremely reduced, and bird occupation was concentrated near forest edges. There was a clear distinction of resource use according to species’ habitat preferences, with forest-species foraging predominantly in-forests, open-area species in pastures, and generalist species having more varied diets, but still relying on a large proportion of C3 sources. Forest cover was unrelated to avian spillover from forests into pastures, but positively related to C3 signatures for both forest and open-area associated species. Finally, we found that most birds moving from forests to pastures were habitat generalists (63%), and that pastures work as a barrier for forest-associated species movement. Landscapes dominated by pasture are very unfavorable to the conservation of forest species, but potentially can maintain ecosystem services from the spillover of generalist species. Landscape complementation Landscape supplementation Stable isotopes Agricultural landscapes Brazilian Atlantic Forest Birds Marques, Thiago Simon verfasserin aut Martinelli, Luiz Antonio verfasserin aut Nichols, Elizabeth verfasserin aut Siqueira, Paulo Ricardo verfasserin aut Beier, Christian verfasserin aut de Camargo, Plinio Barbosa verfasserin aut Metzger, Jean Paul verfasserin aut Enthalten in Biological conservation Amsterdam [u.a.] : Elsevier Science, 1968 253 Online-Ressource (DE-627)306318415 (DE-600)1496231-7 (DE-576)081952937 0006-3207 nnns volume:253 GBV_USEFLAG_U SYSFLAG_U GBV_ELV FID-BIODIV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 42.00 Biologie: Allgemeines AR 253 |
| spelling |
10.1016/j.biocon.2020.108898 doi (DE-627)ELV005373522 (ELSEVIER)S0006-3207(20)30956-3 DE-627 ger DE-627 rda eng 570 DE-600 BIODIV DE-30 fid 42.00 bkl Boesing, Andrea Larissa verfasserin aut Conservation implications of a limited avian cross-habitat spillover in pasture lands 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Increasing evidence demonstrates a role for the cross-habitat spillover process in the maintenance of biodiversity in managed agricultural landscapes. However, the mechanisms that drive this process are less well understood. In particular, it is critical to know how landscape structure modulates spillover movements, and whether species are moving through the matrix to acquire resources or simply to disperse between habitat fragments. We tested landscape effects and food resource use within cattle pasture matrices. We used mist-nets to collect data on avian communities across 51 sampling sites, spanning a forest cover gradient. We additionally integrated stable isotopic analysis (δ13C signature) to determine the provenance of resources used (either forest - dominated by C3 plants; or pasture, dominated by C4). Bird movement across pasture matrices was extremely reduced, and bird occupation was concentrated near forest edges. There was a clear distinction of resource use according to species’ habitat preferences, with forest-species foraging predominantly in-forests, open-area species in pastures, and generalist species having more varied diets, but still relying on a large proportion of C3 sources. Forest cover was unrelated to avian spillover from forests into pastures, but positively related to C3 signatures for both forest and open-area associated species. Finally, we found that most birds moving from forests to pastures were habitat generalists (63%), and that pastures work as a barrier for forest-associated species movement. Landscapes dominated by pasture are very unfavorable to the conservation of forest species, but potentially can maintain ecosystem services from the spillover of generalist species. Landscape complementation Landscape supplementation Stable isotopes Agricultural landscapes Brazilian Atlantic Forest Birds Marques, Thiago Simon verfasserin aut Martinelli, Luiz Antonio verfasserin aut Nichols, Elizabeth verfasserin aut Siqueira, Paulo Ricardo verfasserin aut Beier, Christian verfasserin aut de Camargo, Plinio Barbosa verfasserin aut Metzger, Jean Paul verfasserin aut Enthalten in Biological conservation Amsterdam [u.a.] : Elsevier Science, 1968 253 Online-Ressource (DE-627)306318415 (DE-600)1496231-7 (DE-576)081952937 0006-3207 nnns volume:253 GBV_USEFLAG_U SYSFLAG_U GBV_ELV FID-BIODIV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 42.00 Biologie: Allgemeines AR 253 |
| allfields_unstemmed |
10.1016/j.biocon.2020.108898 doi (DE-627)ELV005373522 (ELSEVIER)S0006-3207(20)30956-3 DE-627 ger DE-627 rda eng 570 DE-600 BIODIV DE-30 fid 42.00 bkl Boesing, Andrea Larissa verfasserin aut Conservation implications of a limited avian cross-habitat spillover in pasture lands 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Increasing evidence demonstrates a role for the cross-habitat spillover process in the maintenance of biodiversity in managed agricultural landscapes. However, the mechanisms that drive this process are less well understood. In particular, it is critical to know how landscape structure modulates spillover movements, and whether species are moving through the matrix to acquire resources or simply to disperse between habitat fragments. We tested landscape effects and food resource use within cattle pasture matrices. We used mist-nets to collect data on avian communities across 51 sampling sites, spanning a forest cover gradient. We additionally integrated stable isotopic analysis (δ13C signature) to determine the provenance of resources used (either forest - dominated by C3 plants; or pasture, dominated by C4). Bird movement across pasture matrices was extremely reduced, and bird occupation was concentrated near forest edges. There was a clear distinction of resource use according to species’ habitat preferences, with forest-species foraging predominantly in-forests, open-area species in pastures, and generalist species having more varied diets, but still relying on a large proportion of C3 sources. Forest cover was unrelated to avian spillover from forests into pastures, but positively related to C3 signatures for both forest and open-area associated species. Finally, we found that most birds moving from forests to pastures were habitat generalists (63%), and that pastures work as a barrier for forest-associated species movement. Landscapes dominated by pasture are very unfavorable to the conservation of forest species, but potentially can maintain ecosystem services from the spillover of generalist species. Landscape complementation Landscape supplementation Stable isotopes Agricultural landscapes Brazilian Atlantic Forest Birds Marques, Thiago Simon verfasserin aut Martinelli, Luiz Antonio verfasserin aut Nichols, Elizabeth verfasserin aut Siqueira, Paulo Ricardo verfasserin aut Beier, Christian verfasserin aut de Camargo, Plinio Barbosa verfasserin aut Metzger, Jean Paul verfasserin aut Enthalten in Biological conservation Amsterdam [u.a.] : Elsevier Science, 1968 253 Online-Ressource (DE-627)306318415 (DE-600)1496231-7 (DE-576)081952937 0006-3207 nnns volume:253 GBV_USEFLAG_U SYSFLAG_U GBV_ELV FID-BIODIV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 42.00 Biologie: Allgemeines AR 253 |
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10.1016/j.biocon.2020.108898 doi (DE-627)ELV005373522 (ELSEVIER)S0006-3207(20)30956-3 DE-627 ger DE-627 rda eng 570 DE-600 BIODIV DE-30 fid 42.00 bkl Boesing, Andrea Larissa verfasserin aut Conservation implications of a limited avian cross-habitat spillover in pasture lands 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Increasing evidence demonstrates a role for the cross-habitat spillover process in the maintenance of biodiversity in managed agricultural landscapes. However, the mechanisms that drive this process are less well understood. In particular, it is critical to know how landscape structure modulates spillover movements, and whether species are moving through the matrix to acquire resources or simply to disperse between habitat fragments. We tested landscape effects and food resource use within cattle pasture matrices. We used mist-nets to collect data on avian communities across 51 sampling sites, spanning a forest cover gradient. We additionally integrated stable isotopic analysis (δ13C signature) to determine the provenance of resources used (either forest - dominated by C3 plants; or pasture, dominated by C4). Bird movement across pasture matrices was extremely reduced, and bird occupation was concentrated near forest edges. There was a clear distinction of resource use according to species’ habitat preferences, with forest-species foraging predominantly in-forests, open-area species in pastures, and generalist species having more varied diets, but still relying on a large proportion of C3 sources. Forest cover was unrelated to avian spillover from forests into pastures, but positively related to C3 signatures for both forest and open-area associated species. Finally, we found that most birds moving from forests to pastures were habitat generalists (63%), and that pastures work as a barrier for forest-associated species movement. Landscapes dominated by pasture are very unfavorable to the conservation of forest species, but potentially can maintain ecosystem services from the spillover of generalist species. Landscape complementation Landscape supplementation Stable isotopes Agricultural landscapes Brazilian Atlantic Forest Birds Marques, Thiago Simon verfasserin aut Martinelli, Luiz Antonio verfasserin aut Nichols, Elizabeth verfasserin aut Siqueira, Paulo Ricardo verfasserin aut Beier, Christian verfasserin aut de Camargo, Plinio Barbosa verfasserin aut Metzger, Jean Paul verfasserin aut Enthalten in Biological conservation Amsterdam [u.a.] : Elsevier Science, 1968 253 Online-Ressource (DE-627)306318415 (DE-600)1496231-7 (DE-576)081952937 0006-3207 nnns volume:253 GBV_USEFLAG_U SYSFLAG_U GBV_ELV FID-BIODIV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 42.00 Biologie: Allgemeines AR 253 |
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10.1016/j.biocon.2020.108898 doi (DE-627)ELV005373522 (ELSEVIER)S0006-3207(20)30956-3 DE-627 ger DE-627 rda eng 570 DE-600 BIODIV DE-30 fid 42.00 bkl Boesing, Andrea Larissa verfasserin aut Conservation implications of a limited avian cross-habitat spillover in pasture lands 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Increasing evidence demonstrates a role for the cross-habitat spillover process in the maintenance of biodiversity in managed agricultural landscapes. However, the mechanisms that drive this process are less well understood. In particular, it is critical to know how landscape structure modulates spillover movements, and whether species are moving through the matrix to acquire resources or simply to disperse between habitat fragments. We tested landscape effects and food resource use within cattle pasture matrices. We used mist-nets to collect data on avian communities across 51 sampling sites, spanning a forest cover gradient. We additionally integrated stable isotopic analysis (δ13C signature) to determine the provenance of resources used (either forest - dominated by C3 plants; or pasture, dominated by C4). Bird movement across pasture matrices was extremely reduced, and bird occupation was concentrated near forest edges. There was a clear distinction of resource use according to species’ habitat preferences, with forest-species foraging predominantly in-forests, open-area species in pastures, and generalist species having more varied diets, but still relying on a large proportion of C3 sources. Forest cover was unrelated to avian spillover from forests into pastures, but positively related to C3 signatures for both forest and open-area associated species. Finally, we found that most birds moving from forests to pastures were habitat generalists (63%), and that pastures work as a barrier for forest-associated species movement. Landscapes dominated by pasture are very unfavorable to the conservation of forest species, but potentially can maintain ecosystem services from the spillover of generalist species. Landscape complementation Landscape supplementation Stable isotopes Agricultural landscapes Brazilian Atlantic Forest Birds Marques, Thiago Simon verfasserin aut Martinelli, Luiz Antonio verfasserin aut Nichols, Elizabeth verfasserin aut Siqueira, Paulo Ricardo verfasserin aut Beier, Christian verfasserin aut de Camargo, Plinio Barbosa verfasserin aut Metzger, Jean Paul verfasserin aut Enthalten in Biological conservation Amsterdam [u.a.] : Elsevier Science, 1968 253 Online-Ressource (DE-627)306318415 (DE-600)1496231-7 (DE-576)081952937 0006-3207 nnns volume:253 GBV_USEFLAG_U SYSFLAG_U GBV_ELV FID-BIODIV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 42.00 Biologie: Allgemeines AR 253 |
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570 DE-600 BIODIV DE-30 fid 42.00 bkl Conservation implications of a limited avian cross-habitat spillover in pasture lands Landscape complementation Landscape supplementation Stable isotopes Agricultural landscapes Brazilian Atlantic Forest Birds |
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Conservation implications of a limited avian cross-habitat spillover in pasture lands |
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Boesing, Andrea Larissa Marques, Thiago Simon Martinelli, Luiz Antonio Nichols, Elizabeth Siqueira, Paulo Ricardo Beier, Christian de Camargo, Plinio Barbosa Metzger, Jean Paul |
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conservation implications of a limited avian cross-habitat spillover in pasture lands |
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Conservation implications of a limited avian cross-habitat spillover in pasture lands |
| abstract |
Increasing evidence demonstrates a role for the cross-habitat spillover process in the maintenance of biodiversity in managed agricultural landscapes. However, the mechanisms that drive this process are less well understood. In particular, it is critical to know how landscape structure modulates spillover movements, and whether species are moving through the matrix to acquire resources or simply to disperse between habitat fragments. We tested landscape effects and food resource use within cattle pasture matrices. We used mist-nets to collect data on avian communities across 51 sampling sites, spanning a forest cover gradient. We additionally integrated stable isotopic analysis (δ13C signature) to determine the provenance of resources used (either forest - dominated by C3 plants; or pasture, dominated by C4). Bird movement across pasture matrices was extremely reduced, and bird occupation was concentrated near forest edges. There was a clear distinction of resource use according to species’ habitat preferences, with forest-species foraging predominantly in-forests, open-area species in pastures, and generalist species having more varied diets, but still relying on a large proportion of C3 sources. Forest cover was unrelated to avian spillover from forests into pastures, but positively related to C3 signatures for both forest and open-area associated species. Finally, we found that most birds moving from forests to pastures were habitat generalists (63%), and that pastures work as a barrier for forest-associated species movement. Landscapes dominated by pasture are very unfavorable to the conservation of forest species, but potentially can maintain ecosystem services from the spillover of generalist species. |
| abstractGer |
Increasing evidence demonstrates a role for the cross-habitat spillover process in the maintenance of biodiversity in managed agricultural landscapes. However, the mechanisms that drive this process are less well understood. In particular, it is critical to know how landscape structure modulates spillover movements, and whether species are moving through the matrix to acquire resources or simply to disperse between habitat fragments. We tested landscape effects and food resource use within cattle pasture matrices. We used mist-nets to collect data on avian communities across 51 sampling sites, spanning a forest cover gradient. We additionally integrated stable isotopic analysis (δ13C signature) to determine the provenance of resources used (either forest - dominated by C3 plants; or pasture, dominated by C4). Bird movement across pasture matrices was extremely reduced, and bird occupation was concentrated near forest edges. There was a clear distinction of resource use according to species’ habitat preferences, with forest-species foraging predominantly in-forests, open-area species in pastures, and generalist species having more varied diets, but still relying on a large proportion of C3 sources. Forest cover was unrelated to avian spillover from forests into pastures, but positively related to C3 signatures for both forest and open-area associated species. Finally, we found that most birds moving from forests to pastures were habitat generalists (63%), and that pastures work as a barrier for forest-associated species movement. Landscapes dominated by pasture are very unfavorable to the conservation of forest species, but potentially can maintain ecosystem services from the spillover of generalist species. |
| abstract_unstemmed |
Increasing evidence demonstrates a role for the cross-habitat spillover process in the maintenance of biodiversity in managed agricultural landscapes. However, the mechanisms that drive this process are less well understood. In particular, it is critical to know how landscape structure modulates spillover movements, and whether species are moving through the matrix to acquire resources or simply to disperse between habitat fragments. We tested landscape effects and food resource use within cattle pasture matrices. We used mist-nets to collect data on avian communities across 51 sampling sites, spanning a forest cover gradient. We additionally integrated stable isotopic analysis (δ13C signature) to determine the provenance of resources used (either forest - dominated by C3 plants; or pasture, dominated by C4). Bird movement across pasture matrices was extremely reduced, and bird occupation was concentrated near forest edges. There was a clear distinction of resource use according to species’ habitat preferences, with forest-species foraging predominantly in-forests, open-area species in pastures, and generalist species having more varied diets, but still relying on a large proportion of C3 sources. Forest cover was unrelated to avian spillover from forests into pastures, but positively related to C3 signatures for both forest and open-area associated species. Finally, we found that most birds moving from forests to pastures were habitat generalists (63%), and that pastures work as a barrier for forest-associated species movement. Landscapes dominated by pasture are very unfavorable to the conservation of forest species, but potentially can maintain ecosystem services from the spillover of generalist species. |
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Conservation implications of a limited avian cross-habitat spillover in pasture lands |
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| score |
7.400757 |