| Literature DB >> 35879541 |
Jodi N Price1, Judith Sitters2,3, Timothy Ohlert4, Pedro M Tognetti5, Cynthia S Brown6, Eric W Seabloom7, Elizabeth T Borer7, Suzanne M Prober8, Elisabeth S Bakker9, Andrew S MacDougall10, Laura Yahdjian5, Daniel S Gruner11, Harry Olde Venterink12, Isabel C Barrio13, Pamela Graff5, Sumanta Bagchi14, Carlos Alberto Arnillas15, Jonathan D Bakker16, Dana M Blumenthal17, Elizabeth H Boughton18, Lars A Brudvig19, Miguel N Bugalho20, Marc W Cadotte21, Maria C Caldeira22, Chris R Dickman23, Ian Donohue24, Sonnier Grégory18, Yann Hautier25, Ingibjörg S Jónsdóttir26, Luciola S Lannes27, Rebecca L McCulley28, Joslin L Moore29, Sally A Power30, Anita C Risch31, Martin Schütz31, Rachel Standish32, Carly J Stevens33, G F Veen34, Risto Virtanen35, Glenda M Wardle23.
Abstract
Ecological models predict that the effects of mammalian herbivore exclusion on plant diversity depend on resource availability and plant exposure to ungulate grazing over evolutionary time. Using an experiment replicated in 57 grasslands on six continents, with contrasting evolutionary history of grazing, we tested how resources (mean annual precipitation and soil nutrients) determine herbivore exclusion effects on plant diversity, richness and evenness. Here we show that at sites with a long history of ungulate grazing, herbivore exclusion reduced plant diversity by reducing both richness and evenness and the responses of richness and diversity to herbivore exclusion decreased with mean annual precipitation. At sites with a short history of grazing, the effects of herbivore exclusion were not related to precipitation but differed for native and exotic plant richness. Thus, plant species' evolutionary history of grazing continues to shape the response of the world's grasslands to changing mammalian herbivory.Entities:
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Year: 2022 PMID： 35879541 DOI： 10.1038/s41559-022-01809-9
Source DB: PubMed Journal: Nat Ecol Evol ISSN： 2397-334X Impact factor: 19.100