气候变化领域集成服务门户(CCPortal): Forest harvest causes rapid changes of maternal investment strategies in ground beetles

CCPortal

DOI	10.1002/ecy.4330
	Forest harvest causes rapid changes of maternal investment strategies in ground beetles
	Egli, Lauren; Work, Timothy T.
发表日期	2024
ISSN	0012-9658
EISSN	1939-9170
英文摘要	Species recovery following anthropogenic disturbances will depend on adaptations in survivorship and fecundity. Life-history theory predicts increased environmental stress will result in (1) shifts in resource allocation from fecundity to body growth/maintenance and (2) increased provisioning among offspring at the cost of reproductive output. For remnant populations that persist after forest harvesting, selection mediated through anthropogenic disturbances may affect resilience to additional stressors such as climate change. We tested how rapid changes in environmental conditions affected maternal investment strategies in two ground beetle species, Pterostichus pensylvanicus and Pterostichus coracinus, by comparing fecundity and survivorship in populations from recently clear-cut and uncut habitats. Using parents drawn from clear-cut or uncut stands, we reared progeny in both common garden and reciprocal transplant experiments. In P. pensylvanicus, we found that neither lineage nor rearing habitat affected the number of eggs laid per female or survivorship of offspring. However, eggs laid by females from clear-cuts were more likely to hatch and offspring reached maturity more quickly, suggesting increased provisioning per offspring. In P. coracinus, females from clear-cuts laid more eggs, and their eggs hatched more rapidly and had greater hatching success, suggesting increased investment in overall reproductive output and increased offspring provisioning. In the reciprocal transplant, we observed significant habitat by lineage interactions on survival in P. coracinus, with survivorship increasing when progeny were reared in novel habitats. In both species, increased maternal investment among offspring was not associated with a reduction in overall reproductive output, as anticipated. However, maternal investment among offspring declined with increasing female size, implying trade-offs between increased metabolic demand and fecundity. Taken together, our work suggests that females from more stressful, clear-cut habitats increased investment in fecundity, compared to females from uncut habitats, and may compensate for larval mortality. These changes were driven by smaller individuals, suggesting that increased environmental stress can influence the relationship between female size and maternal investment strategy. Additionally, reciprocal increases in offspring survivorship in habitats other than the parents suggest that adjacent areas between unharvested and clear-cut habitat may be useful in maintaining biodiversity under future climate stressors.
英文关键词	boreal mixedwoods; Carabidae; fecundity; life-history evolution; offspring quality; parental investment; rapid evolution; recovery after clear-cut
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Ecology
WOS记录号	WOS:001231852700001
来源期刊	ECOLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/291439
作者单位	University of Quebec; University of Quebec Montreal
推荐引用方式 GB/T 7714	Egli, Lauren,Work, Timothy T.. Forest harvest causes rapid changes of maternal investment strategies in ground beetles[J],2024.
APA	Egli, Lauren,&Work, Timothy T..(2024).Forest harvest causes rapid changes of maternal investment strategies in ground beetles.ECOLOGY.
MLA	Egli, Lauren,et al."Forest harvest causes rapid changes of maternal investment strategies in ground beetles".ECOLOGY (2024).