| DOI: | 10.1111/ele.13698
|
| 论文题名: | Experimental manipulation of body size alters life history in hydra |
| 作者: | Ngo K.S.; R-Almási B.; Barta Z.; Tökölyi J.
|
| 刊名: | Ecology Letters
|
| ISSN: | 1461023X
|
| 出版年: | 2021
|
| 卷: | 24, 期:4 | | 起始页码: | 728
|
| 结束页码: | 738
|
| 语种: | 英语
|
| 中文关键词: | Ageing
; allometric scaling
; development
; growth
; life history trade-offs
; longevity
; phenotypic engineering
; physiological regulation
; reproductive allocation
; sexual maturity
|
| 英文关键词: | body size
; climate change
; experimental study
; fecundity
; growth rate
; human activity
; invertebrate
; life history
; physiology
; survival
; Hydra oligactis
; animal
; body size
; fertility
; human
; Hydra
; population dynamics
; reproduction
; Animals
; Body Size
; Fertility
; Humans
; Hydra
; Population Dynamics
; Reproduction
|
| 英文摘要: | Body size has fundamental impacts on animal ecology and physiology but has been strongly influenced by recent climate change and human activities, such as size-selective harvesting. Understanding the ecological and life history consequences of body size has proved difficult due to the inseparability of direct effects of body size from processes connected to it (such as growth rate and individual condition). Here, we used the cnidarian Hydra oligactis to directly manipulate body size and understand its causal effects on reproduction and senescence. We found that experimentally reducing size delayed sexual development and lowered fecundity, while post-reproductive survival increased, implying that smaller individuals can physiologically detect their reduced size and adjust life history decisions to achieve higher survival. Our experiment suggests that ecological or human-induced changes in body size will have immediate effects on life history and population dynamics through a growth-independent link between body size, reproduction and 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/166895
|
| Appears in Collections: | 气候变化与战略
|
|
There are no files associated with this item.
|
|
作者单位: | MTA–DE Behavioral Ecology Research Group, Department of Evolutionary Zoology, Univ. of Debrecen, Debrecen, Hungary
|
| Recommended Citation: | |
Ngo K.S.,R-Almási B.,Barta Z.,et al. Experimental manipulation of body size alters life history in hydra[J]. Ecology Letters,2021-01-01,24(4)
|
|
|