The effects of human population density on trophic interactions are contingent upon latitude
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2024
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| author | Juan A. Hernández‐Agüero Ildefonso Ruiz‐Tapiador Lucas A. Garibaldi Mikhail V. Kozlov Elina Mäntylä Marcos E. Nacif Norma Salinas Luis Cayuela |
| author_facet | Juan A. Hernández‐Agüero Ildefonso Ruiz‐Tapiador Lucas A. Garibaldi Mikhail V. Kozlov Elina Mäntylä Marcos E. Nacif Norma Salinas Luis Cayuela Juan A. Hernández‐Agüero Ildefonso Ruiz‐Tapiador Lucas A. Garibaldi Mikhail V. Kozlov Elina Mäntylä Marcos E. Nacif Norma Salinas Luis Cayuela |
| collection | Wiley Open Access |
| contents | The effects of human population density on trophic interactions are contingent upon latitude Juan A. Hernández‐Agüero Ildefonso Ruiz‐Tapiador Lucas A. Garibaldi Mikhail V. Kozlov Elina Mäntylä Marcos E. Nacif Norma Salinas Luis Cayuela Global Ecology and Biogeography Abstract Aim Global‐scale studies are necessary to draw general conclusions on how trophic interactions vary with urbanization and to explore how the effects of urbanization change along latitudinal gradients. We predict that the intensity of trophic interactions decreases in response to urbanization (quantified by human population density). Since trophic interactions are more intense at lower latitudes, we also expect major impacts of urbanization at higher latitudes, where base levels are essentially lower. Location Global (881 study sites). Time period 2000–2021. Major taxa studied Birds, arthropods and woody plants. Methods We compiled global data on insect herbivory and bird predation from studies that employed similar methods and fitted generalized linear mixed models to test how these trophic interactions vary with human population density, latitude and their interactions. Results The intensity of herbivory and predation decreased with an increase in human population density at lower latitudes. Surprisingly, it remained unaffected at intermediate latitudes and even increased at higher latitudes. Main conclusions The observed patterns may be attributed to local climate changes in urban areas, such as the Urban Heat Island effect, which disrupts thermal stability in the tropics while increasing niche availability at polar latitudes. 10.1111/geb.13849 http://creativecommons.org/licenses/by/4.0/ |
| doi_str_mv | 10.1111/geb.13849 |
| format | Artículo Open Access |
| id | wiley_oa_10_1111_geb_13849 |
| institution | Wiley Open Access |
| license_str_mv | http://creativecommons.org/licenses/by/4.0/ |
| publishDate | 2024 |
| publisher | Wiley |
| record_format | wiley_oa |
| spellingShingle | The effects of human population density on trophic interactions are contingent upon latitude Juan A. Hernández‐Agüero Ildefonso Ruiz‐Tapiador Lucas A. Garibaldi Mikhail V. Kozlov Elina Mäntylä Marcos E. Nacif Norma Salinas Luis Cayuela Global Ecology and Biogeography The effects of human population density on trophic interactions are contingent upon latitude Juan A. Hernández‐Agüero Ildefonso Ruiz‐Tapiador Lucas A. Garibaldi Mikhail V. Kozlov Elina Mäntylä Marcos E. Nacif Norma Salinas Luis Cayuela Global Ecology and Biogeography Abstract Aim Global‐scale studies are necessary to draw general conclusions on how trophic interactions vary with urbanization and to explore how the effects of urbanization change along latitudinal gradients. We predict that the intensity of trophic interactions decreases in response to urbanization (quantified by human population density). Since trophic interactions are more intense at lower latitudes, we also expect major impacts of urbanization at higher latitudes, where base levels are essentially lower. Location Global (881 study sites). Time period 2000–2021. Major taxa studied Birds, arthropods and woody plants. Methods We compiled global data on insect herbivory and bird predation from studies that employed similar methods and fitted generalized linear mixed models to test how these trophic interactions vary with human population density, latitude and their interactions. Results The intensity of herbivory and predation decreased with an increase in human population density at lower latitudes. Surprisingly, it remained unaffected at intermediate latitudes and even increased at higher latitudes. Main conclusions The observed patterns may be attributed to local climate changes in urban areas, such as the Urban Heat Island effect, which disrupts thermal stability in the tropics while increasing niche availability at polar latitudes. 10.1111/geb.13849 http://creativecommons.org/licenses/by/4.0/ |
| title | The effects of human population density on trophic interactions are contingent upon latitude |
| topic | Global Ecology and Biogeography |
| url | https://onlinelibrary.wiley.com/doi/10.1111/geb.13849 |