DOI: 10.1111/ele.13839
论文题名: Effects of maternal age and stress on offspring quality in a viviparous fly
作者: Lord J.S. ; Leyland R. ; Haines L.R. ; Barreaux A.M.G. ; Bonsall M.B. ; Torr S.J. ; English S.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2021
语种: 英语
中文关键词: maternal allocation
; senescence
; tsetse
英文摘要: Many organisms show signs of deterioration with age in terms of survival and reproduction. We tested whether intraspecific variation in such senescence patterns can be driven by resource availability or reproductive history. We did this by manipulating nutritional stress and age at first reproduction and measuring age-dependent reproductive output in tsetse (Glossina morsitans morsitans), a viviparous fly with high maternal allocation. Across all treatments, offspring weight followed a bell-shaped curve with maternal age. Nutritionally stressed females had a higher probability of abortion and produced offspring with lower starvation tolerance. There was no evidence of an increased rate of reproductive senescence in nutritionally stressed females, or a reduced rate due to delayed mating, as measured by patterns of abortion, offspring weight or offspring starvation tolerance. Therefore, although we found evidence of reproductive senescence in tsetse, our results did not indicate that resource allocation trade-offs or costs of reproduction increase the rate of senescence. © 2021 The Authors. Ecology Letters published by John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/166876
Appears in Collections: 气候变化与战略
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作者单位: Department of Vector Biology, Liverpool School of Tropical Medicine, Liverpool, United Kingdom; School of Biological Sciences, University of Bristol, Bristol, United Kingdom; Mathematical Ecology Research Group, Department of Zoology, University of Oxford, Oxford, United Kingdom
Recommended Citation:
Lord J.S.,Leyland R.,Haines L.R.,et al. Effects of maternal age and stress on offspring quality in a viviparous fly[J]. Ecology Letters,2021-01-01