Fitness costs of parasites explain multiple life history tradeoffs in a wild mammal
Fitness costs of parasites explain multiple life history tradeoffs in a wild mammal
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寄生虫的健康成本解释了野生哺乳动物的多种生活史权衡
DOI:
10.1101/683094
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发表时间:
2019
期刊:
影响因子:
--
通讯作者:
Albery G
中科院分区:
文献类型:
--
作者:
Albery G
Reproduction in wild animals can divert limited resources away from immune defense, resulting in increased parasite burdens. A long-standing prediction of life-history theory states that these parasites can harm the reproductive individual, reducing its subsequent survival and fecundity, producing reproduction-fitness trade-offs. Here, we examined associations among reproductive allocation, immunity, parasitism, and subsequent survival and fecundity in a wild population of individually identified red deer (Cervus elaphus). Using path analysis, we investigated whether costs of lactation in terms of downstream survival and fecundity were mediated by changes in strongyle nematode count and mucosal antibody levels. Lactating females exhibited increased parasite counts, which were in turn associated with substantially decreased fitness in the following year in terms of overwinter survival, fecundity, subsequent calf weight, and parturition date. This study offers observational evidence for parasite regulation of multiple life-history trade-offs, supporting the role of parasites as an important mediating factor in wild mammal populations.
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影响因子:
56.9
作者:
Graham, Andrea L.;Hayward, Adam D.;Nussey, Daniel H.
通讯作者:
Nussey, Daniel H.
DOI:
10.1098/rspb.2014.1873
发表时间:
2015-01-07
影响因子:
4.7
作者:
Brambilla, Alice;Biebach, Iris;von Hardenberg, Achaz
通讯作者:
von Hardenberg, Achaz
影响因子:
4.8
作者:
FESTABIANCHET, M
通讯作者:
FESTABIANCHET, M
影响因子:
4.8
作者:
K. Vandegrift;T. Raffel;P. Hudson
通讯作者:
P. Hudson
影响因子:
4.8
作者:
Garnier, Alexandre;Gaillard, Jean-Michel;Besnard, Aurelien
通讯作者:
Besnard, Aurelien