Predator traits determine food-web architecture across ecosystems.
СтатьяПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод в очереди
Обработка статьи · этапы, ошибки и управление
Загрузка состояния…
Ошибки и ограничения
История · было → стало
Состояние обновляется каждые 5 секунд, пока блок открыт. Процент показывается только там, где известен объём работы. Пауза останавливает продолжение этапа; текущий запрос к источнику может завершиться.
Brose Ulrich, Archambault Phillippe, Barnes Andrew D, Bersier Louis-Felix, Boy Thomas, Canning-Clode João, Conti Erminia, Dias Marta, Digel Christoph, Dissanayake Awantha, Flores Augusto A V, Fussmann Katarina, Gauzens Benoit, Gray Clare, Häussler Johanna, Hirt Myriam R, Jacob Ute, Jochum Malte, Kéfi Sonia, McLaughlin Orla, MacPherson Muriel M, Latz Ellen, Layer-Dobra Katrin, Legagneux Pierre, Li Yuanheng, Madeira Carolina, Martinez Neo D, Mendonça Vanessa, Mulder Christian, Navarrete Sergio A, O'Gorman Eoin J, Ott David, Paula José, Perkins Daniel, Piechnik Denise, Pokrovsky Ivan, Raffaelli David, Rall Björn C, Rosenbaum Benjamin, Ryser Remo, Silva Ana, Sohlström Esra H, Sokolova Natalia, Thompson Murray S A, Thompson Ross M, Vermandele Fanny, Vinagre Catarina, Wang Shaopeng, Wefer Jori M, Williams Richard J, Wieters Evie, Woodward Guy, Iles Alison C
Аннотация
Predator-prey interactions in natural ecosystems generate complex food webs that have a simple universal body-size architecture where predators are systematically larger than their prey. Food-web theory shows that the highest predator-prey body-mass ratios found in natural food webs may be especially important because they create weak interactions with slow dynamics that stabilize communities against perturbations and maintain ecosystem functioning. Identifying these vital interactions in real communities typically requires arduous identification of interactions in complex food webs. Here, we overcome this obstacle by developing predator-trait models to predict average body-mass ratios based on a database comprising 290 food webs from freshwater, marine and terrestrial ecosystems across all continents. We analysed how species traits constrain body-size architecture by changing the slope of the predator-prey body-mass scaling. Across ecosystems, we found high body-mass ratios for predator groups with specific trait combinations including (1) small vertebrates and (2) large swimming or flying predators. Including the metabolic and movement types of predators increased the accuracy of predicting which species are engaged in high body-mass ratio interactions. We demonstrate that species traits explain striking patterns in the body-size architecture of natural food webs that underpin the stability and functioning of ecosystems, paving the way for community-level management of the most complex natural ecosystems.