Incorporating anthropogenic effects into trophic ecology: predator-prey interactions in a human-dominated landscape
Apex predators perform important functions that regulate ecosystems worldwide. However, little is known about how ecosystem regulation by predators is influenced by human activities. In particular, how important are top-down effects of predators relative to direct and indirect human-mediated bottom-...
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ftdeakinunifig:oai:figshare.com:article/20900119 2023-05-15T15:50:49+02:00 Incorporating anthropogenic effects into trophic ecology: predator-prey interactions in a human-dominated landscape I Dorresteijn J Schultner D G Nimmo J Fischer J Hanspach T Kuemmerle L Kehoe Euan Ritchie 2015-01-01T00:00:00Z http://hdl.handle.net/10536/DRO/DU:30078864 https://figshare.com/articles/journal_contribution/Incorporating_anthropogenic_effects_into_trophic_ecology_predator-prey_interactions_in_a_human-dominated_landscape/20900119 unknown http://hdl.handle.net/10536/DRO/DU:30078864 https://figshare.com/articles/journal_contribution/Incorporating_anthropogenic_effects_into_trophic_ecology_predator-prey_interactions_in_a_human-dominated_landscape/20900119 All Rights Reserved Uncategorized apex predators habitat modification large herbivores mesopredators top-down versus bottom-up trophic cascade Science & Technology Life Sciences & Biomedicine Biology Ecology Evolutionary Biology Life Sciences & Biomedicine - Other Topics Environmental Sciences & Ecology YELLOWSTONE-NATIONAL-PARK BIALOWIEZA PRIMEVAL FOREST DEER HABITAT SELECTION VULPES-VULPES DENSITY TOP PREDATORS CANIS-LUPUS ROE DEER MESOPREDATOR RELEASE SPATIAL-PATTERNS RED DEER Text Journal contribution 2015 ftdeakinunifig 2022-11-17T21:10:16Z Apex predators perform important functions that regulate ecosystems worldwide. However, little is known about how ecosystem regulation by predators is influenced by human activities. In particular, how important are top-down effects of predators relative to direct and indirect human-mediated bottom-up and top-down processes? Combining data on species' occurrence from camera traps and hunting records, we aimed to quantify the relative effects of top-down and bottom-up processes in shaping predator and prey distributions in a human-dominated landscape in Transylvania, Romania. By global standards this system is diverse, including apex predators (brown bear and wolf), mesopredators (red fox) and large herbivores (roe and red deer). Humans and free-ranging dogs represent additional predators in the system. Using structural equation modelling, we found that apex predators suppress lower trophic levels, especially herbivores. However, direct and indirect top-down effects of humans affected the ecosystem more strongly, influencing species at all trophic levels. Our study highlights the need to explicitly embed humans and their influences within trophic cascade theory. This will greatly expand our understanding of species interactions in human-modified landscapes, which compose the majority of the Earth's terrestrial surface. Other Non-Article Part of Journal/Newspaper Canis lupus DRO - Deakin Research Online |
institution |
Open Polar |
collection |
DRO - Deakin Research Online |
op_collection_id |
ftdeakinunifig |
language |
unknown |
topic |
Uncategorized apex predators habitat modification large herbivores mesopredators top-down versus bottom-up trophic cascade Science & Technology Life Sciences & Biomedicine Biology Ecology Evolutionary Biology Life Sciences & Biomedicine - Other Topics Environmental Sciences & Ecology YELLOWSTONE-NATIONAL-PARK BIALOWIEZA PRIMEVAL FOREST DEER HABITAT SELECTION VULPES-VULPES DENSITY TOP PREDATORS CANIS-LUPUS ROE DEER MESOPREDATOR RELEASE SPATIAL-PATTERNS RED DEER |
spellingShingle |
Uncategorized apex predators habitat modification large herbivores mesopredators top-down versus bottom-up trophic cascade Science & Technology Life Sciences & Biomedicine Biology Ecology Evolutionary Biology Life Sciences & Biomedicine - Other Topics Environmental Sciences & Ecology YELLOWSTONE-NATIONAL-PARK BIALOWIEZA PRIMEVAL FOREST DEER HABITAT SELECTION VULPES-VULPES DENSITY TOP PREDATORS CANIS-LUPUS ROE DEER MESOPREDATOR RELEASE SPATIAL-PATTERNS RED DEER I Dorresteijn J Schultner D G Nimmo J Fischer J Hanspach T Kuemmerle L Kehoe Euan Ritchie Incorporating anthropogenic effects into trophic ecology: predator-prey interactions in a human-dominated landscape |
topic_facet |
Uncategorized apex predators habitat modification large herbivores mesopredators top-down versus bottom-up trophic cascade Science & Technology Life Sciences & Biomedicine Biology Ecology Evolutionary Biology Life Sciences & Biomedicine - Other Topics Environmental Sciences & Ecology YELLOWSTONE-NATIONAL-PARK BIALOWIEZA PRIMEVAL FOREST DEER HABITAT SELECTION VULPES-VULPES DENSITY TOP PREDATORS CANIS-LUPUS ROE DEER MESOPREDATOR RELEASE SPATIAL-PATTERNS RED DEER |
description |
Apex predators perform important functions that regulate ecosystems worldwide. However, little is known about how ecosystem regulation by predators is influenced by human activities. In particular, how important are top-down effects of predators relative to direct and indirect human-mediated bottom-up and top-down processes? Combining data on species' occurrence from camera traps and hunting records, we aimed to quantify the relative effects of top-down and bottom-up processes in shaping predator and prey distributions in a human-dominated landscape in Transylvania, Romania. By global standards this system is diverse, including apex predators (brown bear and wolf), mesopredators (red fox) and large herbivores (roe and red deer). Humans and free-ranging dogs represent additional predators in the system. Using structural equation modelling, we found that apex predators suppress lower trophic levels, especially herbivores. However, direct and indirect top-down effects of humans affected the ecosystem more strongly, influencing species at all trophic levels. Our study highlights the need to explicitly embed humans and their influences within trophic cascade theory. This will greatly expand our understanding of species interactions in human-modified landscapes, which compose the majority of the Earth's terrestrial surface. |
format |
Other Non-Article Part of Journal/Newspaper |
author |
I Dorresteijn J Schultner D G Nimmo J Fischer J Hanspach T Kuemmerle L Kehoe Euan Ritchie |
author_facet |
I Dorresteijn J Schultner D G Nimmo J Fischer J Hanspach T Kuemmerle L Kehoe Euan Ritchie |
author_sort |
I Dorresteijn |
title |
Incorporating anthropogenic effects into trophic ecology: predator-prey interactions in a human-dominated landscape |
title_short |
Incorporating anthropogenic effects into trophic ecology: predator-prey interactions in a human-dominated landscape |
title_full |
Incorporating anthropogenic effects into trophic ecology: predator-prey interactions in a human-dominated landscape |
title_fullStr |
Incorporating anthropogenic effects into trophic ecology: predator-prey interactions in a human-dominated landscape |
title_full_unstemmed |
Incorporating anthropogenic effects into trophic ecology: predator-prey interactions in a human-dominated landscape |
title_sort |
incorporating anthropogenic effects into trophic ecology: predator-prey interactions in a human-dominated landscape |
publishDate |
2015 |
url |
http://hdl.handle.net/10536/DRO/DU:30078864 https://figshare.com/articles/journal_contribution/Incorporating_anthropogenic_effects_into_trophic_ecology_predator-prey_interactions_in_a_human-dominated_landscape/20900119 |
genre |
Canis lupus |
genre_facet |
Canis lupus |
op_relation |
http://hdl.handle.net/10536/DRO/DU:30078864 https://figshare.com/articles/journal_contribution/Incorporating_anthropogenic_effects_into_trophic_ecology_predator-prey_interactions_in_a_human-dominated_landscape/20900119 |
op_rights |
All Rights Reserved |
_version_ |
1766385847562665984 |