气候变化领域集成服务门户(CCPortal): Mutualism disruption by an invasive ant reduces carbon fixation for a foundational East African ant-plant

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DOI	10.1111/ele.13725
	Mutualism disruption by an invasive ant reduces carbon fixation for a foundational East African ant-plant
	Milligan P.D.; Martin T.A.; John G.P.; Riginos C.; Goheen J.R.; Carpenter S.M.; Palmer T.M.
发表日期	2021
ISSN	1461023X
起始页码	1052
结束页码	1062
卷号	24 期号:5
英文摘要	Invasive ants shape assemblages and interactions of native species, but their effect on fundamental ecological processes is poorly understood. In East Africa, Pheidole megacephala ants have invaded monodominant stands of the ant-tree Acacia drepanolobium, extirpating native ant defenders and rendering trees vulnerable to canopy damage by vertebrate herbivores. We used experiments and observations to quantify direct and interactive effects of invasive ants and large herbivores on A. drepanolobium photosynthesis over a 2-year period. Trees that had been invaded for ≥ 5 years exhibited 69% lower whole-tree photosynthesis during key growing seasons, resulting from interaction between invasive ants and vertebrate herbivores that caused leaf- and canopy-level photosynthesis declines. We also surveyed trees shortly before and after invasion, finding that recent invasion induced only minor changes in leaf physiology. Our results from individual trees likely scale up, highlighting the potential of invasive species to alter ecosystem-level carbon fixation and other biogeochemical cycles. © 2021 John Wiley & Sons Ltd.
关键词	ant-plant biological invasion invasive ant mutualism photosynthesis
英文关键词	Acacia drepanolobium; Pheidole megacephala; Vertebrata; Acacia; animal; ant; carbon cycle; ecosystem; symbiosis; Acacia; Animals; Ants; Carbon Cycle; Ecosystem; Symbiosis
语种	英语
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/204447
作者单位	Department of Biology, University of Florida, Gainesville, FL, United States; Mpala Research Centre, Nanyuki, Kenya; School of Forest Resources and Conservation, University of Florida, Gainesville, FL, United States; School of the Environment, Yale University, New Haven, CT, United States; The Nature Conservancy, Lander, WY, United States; Department of Zoology and Physiology, University of Wyoming, Laramie, WY, United States
推荐引用方式 GB/T 7714	Milligan P.D.,Martin T.A.,John G.P.,et al. Mutualism disruption by an invasive ant reduces carbon fixation for a foundational East African ant-plant[J],2021,24(5).
APA	Milligan P.D..,Martin T.A..,John G.P..,Riginos C..,Goheen J.R..,...&Palmer T.M..(2021).Mutualism disruption by an invasive ant reduces carbon fixation for a foundational East African ant-plant.Ecology Letters,24(5).
MLA	Milligan P.D.,et al."Mutualism disruption by an invasive ant reduces carbon fixation for a foundational East African ant-plant".Ecology Letters 24.5(2021).