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Title: Higher predation risk for insect prey at low latitudes and elevations
Contributor(s): Roslin, Tomas (author); Hardwick, Bess (author); Cameron, Erin K (author); Dattilo, Wesley (author); Donoso, David A (author); Drozd, Pavel (author); Gray, Claudia L (author); Hik, David S (author); Hill, Sarah  (author); Hopkins, Tapani (author); Huang, Shuyin (author); Koane, Bonny (author); Novotny, Vojtech (author); Laird-Hopkins, Benita (author); Laukkanen, Liisa (author); Lewis, Owen T (author); Milne, Sol (author); Mwesige, Isaiah (author); Nakamura, Akihiro (author); Nell, Colleen S (author); Nichols, Elizabeth (author); Prokurat, Alena (author); Sam, Katerina (author); Petry, William K (author); Schmidt, Niels M (author); Slade, Alison (author); Slade, Victor (author); Suchankova, Alzbeta (author); Teder, Tiit (author); van Nouhuys, Saskya (author); Vandvik, Vigdis (author); Weissflog, Anita (author); Zhukovich, Vital (author); Slade, Eleanor M (author); Andrew, Nigel R  (author)orcid ; Asmus, Ashley (author); Barrio, Isabel C (author); Basset, Yves (author); Boesing, Andrea Larissa (author); Bonebrake, Timothy C (author)
Publication Date: 2017
Open Access: Yes
DOI: 10.1126/science.aaj1631
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Abstract: Biotic interactions underlie ecosystem structure and function, but predicting interaction outcomes is difficult. We tested the hypothesis that biotic interaction strength increases toward the equator, using a global experiment with model caterpillars to measure predation risk. Across an 11,660-kilometer latitudinal gradient spanning six continents, we found increasing predation toward the equator, with a parallel pattern of increasing predation toward lower elevations. Patterns across both latitude and elevation were driven by arthropod predators,with no systematic trend in attack rates by birds or mammals. These matching gradients at global and regional scales suggest consistent drivers of biotic interaction strength, a finding that needs to be integrated into general theories of herbivory, community organization, and life-history evolution.
Publication Type: Journal Article
Source of Publication: Science, 356(6339), p. 742-744
Publisher: American Association for the Advancement of Science
Place of Publication: United States of America
ISSN: 1095-9203
Field of Research (FOR): 060808 Invertebrate Biology
060208 Terrestrial Ecology
050104 Landscape Ecology
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
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