干旱区生态环境知识资源中心(Arid): Additive multiple predator effects of two specialist paradiaptomid copepods towards larval mosquitoes

Arid

DOI	10.1016/j.limno.2019.125727
	Additive multiple predator effects of two specialist paradiaptomid copepods towards larval mosquitoes
	Cuthbert, Ross N.1,2,3; Dalu, Tatenda 4,5; Wasserman, Ryan J.5,6; Weyl, Olaf L. F.2; Froneman, P. William 7; Callaghan, Amanda 3; Dick, Jaimie T. A.1
通讯作者	Cuthbert, Ross N.
来源期刊	LIMNOLOGICA
ISSN	0075-9511
EISSN	1873-5851
出版年	2019
卷号	79
英文摘要	Interactions between multiple predators can profoundly affect prey risk, with implications for prey population stability and ecosystem functioning. In austral temporary wetlands, arid-area adapted specialist copepods are key predators for much of the hydroperiod. Limited autoecological information relating to species interactions negates understandings of trophic dynamics in these systems. In the present study, we examined multiple predator effects of two key predatory paradiaptomid copepods which often coexist in austral temporary wetlands, Lovenula raynerae Suarez-Morales, Wasserman and Dalu 2015 and Paradiaptomus lamellatus Sars, 1985. Predation rates towards larval mosquito prey across different water depths were quantified. Using a comparative functional response approach, individual L. raynerae exhibited significantly higher feeding rates than P. lamellatus, characterised by higher attack rates, shorter handling times and higher maximum feeding rates. Increasing water depth tended to negatively affect prey consumption, particularly for L. raynerae. Interspecific multiple predator consumption combined additively, and thus prey risks were well-predicted from consumption rates by individual paradiaptomid copepod species, irrespective of water depth. Our results suggest that increasing copepod predator diversity in austral temporary wetland ecosystems additively heightens prey risk across different water volumes, and may help to regulate disease vector mosquito populations. Therefore, the numerical extent, phenology and diversity of predator hatching events during the hydroperiod may substantially mediate interaction strengths in these ecosystems.
英文关键词	Zooplankton Temporary wetland Predator-predator interaction Larval mosquitoes Water depth Functional response
类型	Article
语种	英语
国家	North Ireland ; South Africa ; England ; Botswana
开放获取类型	Green Published
收录类别	SCI-E
WOS记录号	WOS:000498822200001
WOS关键词	FUNCTIONAL-RESPONSES ; TROPHIC INTERACTIONS ; EGG BANKS ; PREY ; COMMUNITY ; IMPACTS ; ZOOPLANKTON ; COMPETITION ; DIVERSITY ; CALANOIDA
WOS类目	Limnology
WOS研究方向	Marine & Freshwater Biology
EI主题词	2019-11-01
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310664
作者单位	1.Queens Univ Belfast, Sch Biol Sci, Inst Global Food Secur, Belfast BT9 5DL, Antrim, North Ireland; 2.South African Inst Aquat Biodivers, DST NRF Res Chair Inland Fisheries & Freshwater E, ZA-6140 Makhanda, South Africa; 3.Univ Reading, Sch Biol Sci, Ecol & Evolutionary Biol, Harborne Bldg, Reading RG6 6AS, Berks, England; 4.Univ Venda, Dept Ecol & Resource Management, ZA-0950 Thohoyandou, South Africa; 5.South African Inst Aquat Biodivers, ZA-6140 Makhanda, South Africa; 6.Botswana Int Univ Sci & Technol, Dept Biol Sci & Biotechnol, Palapye, Botswana; 7.Rhodes Univ, Dept Zool & Entomol, ZA-6140 Makhanda, South Africa
推荐引用方式 GB/T 7714	Cuthbert, Ross N.,Dalu, Tatenda,Wasserman, Ryan J.,et al. Additive multiple predator effects of two specialist paradiaptomid copepods towards larval mosquitoes[J],2019,79.
APA	Cuthbert, Ross N..,Dalu, Tatenda.,Wasserman, Ryan J..,Weyl, Olaf L. F..,Froneman, P. William.,...&Dick, Jaimie T. A..(2019).Additive multiple predator effects of two specialist paradiaptomid copepods towards larval mosquitoes.LIMNOLOGICA,79.
MLA	Cuthbert, Ross N.,et al."Additive multiple predator effects of two specialist paradiaptomid copepods towards larval mosquitoes".LIMNOLOGICA 79(2019).