| Literature DB >> 28522532 |
Tomas Roslin1,2, Bess Hardwick2, Vojtech Novotny3,4,5, William K Petry6,7, Nigel R Andrew8, Ashley Asmus9, Isabel C Barrio10,11, Yves Basset3,4,12, Andrea Larissa Boesing13, Timothy C Bonebrake14, Erin K Cameron15,16, Wesley Dáttilo17, David A Donoso18, Pavel Drozd19, Claudia L Gray20,21, David S Hik10, Sarah J Hill8, Tapani Hopkins22, Shuyin Huang23, Bonny Koane5, Benita Laird-Hopkins12, Liisa Laukkanen24, Owen T Lewis21, Sol Milne25, Isaiah Mwesige26, Akihiro Nakamura23, Colleen S Nell6, Elizabeth Nichols13,27, Alena Prokurat28, Katerina Sam3,4, Niels M Schmidt29,30, Alison Slade31, Victor Slade31, Alžběta Suchanková19, Tiit Teder32, Saskya van Nouhuys15, Vigdis Vandvik33, Anita Weissflog34, Vital Zhukovich28, Eleanor M Slade2,21,35.
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.Mesh：
Year: 2017 PMID： 28522532 DOI： 10.1126/science.aaj1631
Source DB: PubMed Journal: Science ISSN： 0036-8075 Impact factor: 47.728