Climate Change Data Portal
DOI | 10.1186/s13071-019-3431-x |
Eutrophication governs predator-prey interactions and temperature effects in Aedes aegypti populations | |
Krol, Louie1,2; Gorsich, Erin E.3,4; Hunting, Ellard R.5,6; Govender, Danny7,8; van Bodegom, Peter M.1; Schrama, Maarten1,2 | |
发表日期 | 2019 |
ISSN | 1756-3305 |
卷号 | 12 |
英文摘要 | BackgroundMosquito population dynamics are driven by large-scale (e.g. climatological) and small-scale (e.g. ecological) factors. While these factors are known to independently influence mosquito populations, it remains uncertain how drivers that simultaneously operate under natural conditions interact to influence mosquito populations. We, therefore, developed a well-controlled outdoor experiment to assess the interactive effects of two ecological drivers, predation and nutrient availability, on mosquito life history traits under multiple temperature regimes.MethodsWe conducted a temperature-controlled mesocosm experiment in Kruger National Park, South Africa, with the yellow fever mosquito, Aedes aegypti. We investigated how larval survival, emergence and development rates were impacted by the presence of a locally-common invertebrate predator (backswimmers Anisops varia Fieber (Notonectidae: Hemiptera), nutrient availability (oligotrophic vs eutrophic, reflecting field conditions), water temperature, and interactions between each driver.ResultsWe observed that the effects of predation and temperature both depended on eutrophication. Predation caused lower adult emergence in oligotrophic conditions but higher emergence under eutrophic conditions. Higher temperatures caused faster larval development rates in eutrophic but not oligotrophic conditions.ConclusionsOur study shows that ecological bottom-up and top-down drivers strongly and interactively govern mosquito life history traits for Ae. aegypti populations. Specifically, we show that eutrophication can inversely affect predator-prey interactions and mediate the effect of temperature on mosquito survival and development rates. Hence, our results suggest that nutrient pollution can overrule biological constraints on natural mosquito populations and highlights the importance of studying multiple factors. |
WOS研究方向 | Parasitology ; Tropical Medicine |
来源期刊 | PARASITES & VECTORS |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/96654 |
作者单位 | 1.Leiden Univ, Inst Environm Sci, Leiden, Netherlands; 2.Naturalis Biodivers Ctr, Leiden, Netherlands; 3.Univ Warwick, Zeeman Inst Syst Biol & Infect Dis Epidemiol Res, Coventry, W Midlands, England; 4.Univ Warwick, Sch Life Sci, Coventry, W Midlands, England; 5.Univ Bristol, Sch Biol Sci, Bristol, Avon, England; 6.Woods Hole Oceanog Inst, Dept Biol, Woods Hole, MA 02543 USA; 7.Univ Pretoria, Dept Paraclin Sci, Pretoria, South Africa; 8.Sci Serv Kruger Natl Pk, Skukuza, South Africa |
推荐引用方式 GB/T 7714 | Krol, Louie,Gorsich, Erin E.,Hunting, Ellard R.,et al. Eutrophication governs predator-prey interactions and temperature effects in Aedes aegypti populations[J],2019,12. |
APA | Krol, Louie,Gorsich, Erin E.,Hunting, Ellard R.,Govender, Danny,van Bodegom, Peter M.,&Schrama, Maarten.(2019).Eutrophication governs predator-prey interactions and temperature effects in Aedes aegypti populations.PARASITES & VECTORS,12. |
MLA | Krol, Louie,et al."Eutrophication governs predator-prey interactions and temperature effects in Aedes aegypti populations".PARASITES & VECTORS 12(2019). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。