气候变化领域集成服务门户(CCPortal): Introduced herbivores restore late pleistocene ecological functions

CCPortal

DOI	10.1073/pnas.1915769117
	Introduced herbivores restore late pleistocene ecological functions
	Lundgren E.J.; Ramp D.; Rowan J.; Middleton O.; Schowanek S.D.; Sanisidro O.; Carroll S.P.; Davis M.; Sandom C.J.; Svenning J.-C.; Wallach A.D.
发表日期	2020
ISSN	0027-8424
起始页码	7871
结束页码	7878
卷号	117 期号:14
英文摘要	Large-bodied mammalian herbivores dominated Earth's terrestrial ecosystems for several million years before undergoing substantial extinctions and declines during the Late Pleistocene (LP) due to prehistoric human impacts. The decline of large herbivores led to widespread ecological changes due to the loss of their ecological functions, as driven by their unique combinations of traits. However, recently, humans have significantly increased herbivore species richness through introductions in many parts of the world, potentially counteracting LP losses. Here, we assessed the extent to which introduced herbivore species restore lost-or contribute novel-functions relative to preextinction LP assemblages. We constructed multidimensional trait spaces using a trait database for all extant and extinct mammalian herbivores ≥10 kg known from the earliest LP (∼130,000 ybp) to the present day. Extinction-driven contractions of LP trait space have been offset through introductions by ∼39% globally. Analysis of trait space overlap reveals that assemblages with introduced species are overall more similar to those of the LP than native-only assemblages. This is because 64% of introduced species are more similar to extinct rather than extant species within their respective continents. Many introduced herbivores restore trait combinations that have the capacity to influence ecosystem processes, such as wildfire and shrub expansion in drylands. Although introduced species have long been a source of contention, our findings indicate that they may, in part, restore ecological functions reflective of the past several million years before widespread human-driven extinctions. © 2020 National Academy of Sciences. All rights reserved.
英文关键词	Functional ecology; Invasion; Megafauna; Novel ecosystems; Restoration ecology
语种	英语
scopus关键词	article; ecology; ecosystem; extant species; herbivore; human; introduced species; mammal; nonhuman; shrub; Upper Pleistocene; wildfire; animal; biodiversity; ecosystem; evolution; genetics; herbivory; introduced species; physiology; species extinction; Animals; Biodiversity; Biological Evolution; Ecosystem; Extinction, Biological; Herbivory; Humans; Introduced Species; Mammals
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/161002
作者单位	Lundgren, E.J., Centre for Compassionate Conservation, Faculty of Science, University of Technology Sydney, Ultimo, NSW 2007, Australia; Ramp, D., Centre for Compassionate Conservation, Faculty of Science, University of Technology Sydney, Ultimo, NSW 2007, Australia; Rowan, J., Organismic and Evolutionary Biology, University of Massachusetts Amherst, Amherst, MA 01003, United States; Middleton, O., School of Life Sciences, University of Sussex, Brighton, BN1 9RH, United Kingdom; Schowanek, S.D., Section for Ecoinformatics and Biodiversity, Department of Biology, Aarhus University, Aarhus C, DK 8000, Denmark, Center for Biodiversity Dynamics in a Changing World (BIOCHANGE), Department of Biology, Aarhus University, Aarhus C, DK 8000, Denmark; Sanisidro, O., Departamento Ciencias de la Vida, Universidad de Alcalá, Alcalá de Henares, 28801, Spain, Department of Vertebrate Paleontology, Biodiversity Institute, University of KansasKS 66045, United States; Carroll, S.P., Department of Entomology and Nematol...
推荐引用方式 GB/T 7714	Lundgren E.J.,Ramp D.,Rowan J.,et al. Introduced herbivores restore late pleistocene ecological functions[J],2020,117(14).
APA	Lundgren E.J..,Ramp D..,Rowan J..,Middleton O..,Schowanek S.D..,...&Wallach A.D..(2020).Introduced herbivores restore late pleistocene ecological functions.Proceedings of the National Academy of Sciences of the United States of America,117(14).
MLA	Lundgren E.J.,et al."Introduced herbivores restore late pleistocene ecological functions".Proceedings of the National Academy of Sciences of the United States of America 117.14(2020).