干旱区生态环境知识资源中心(Arid): Fire, drought and flooding rains: The effect of climatic extremes on bird species' responses to time since fire

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DOI	10.1111/ddi.13287
	Fire, drought and flooding rains: The effect of climatic extremes on bird species' responses to time since fire
	Connell, Jemima; Hall, Mark A.; Nimmo, Dale G.; Watson, Simon J.; Clarke, Michael F.
通讯作者	Connell, J (corresponding author), La Trobe Univ, Dept Ecol Environm & Evolut, Bundoora, Vic 3086, Australia.
来源期刊	DIVERSITY AND DISTRIBUTIONS
ISSN	1366-9516
EISSN	1472-4642
出版年	2021-05
英文摘要	Aim Climatic extremes and fire affect ecosystems across the globe, yet our understanding of how species are influenced by the interaction of these broadscale ecological drivers is poorly understood. Using a ten-year dataset, we tested how extreme drought and rainfall interacted with time since fire (TSF) to shape bird species' distributions. Location Semi-arid mallee woodlands of south-eastern Australia. Methods We quantified the effects of climatic extremes on bird species' occurrence, species richness and incidence at 180 sites across three climatic periods-an El Nino-associated drought (the Big Dry), immediately after La Nina drought-breaking rainfall (Big Wet) and three years following the La Nina event (Post-Big Wet). We then compared species' responses with TSF across the three climatic periods using a chronosequence of sites from 1 to 117 years post-fire. Results La Nina rainfall had sustained impacts on species' occurrence. Over half of species increased significantly during the Big Wet. Despite three intervening years of below-average rainfall, three quarters of these species remained comparably high, Post-Big Wet. By contrast, less than half of threatened and declining species benefited from high rainfall. Responses of species to TSF were found to differ contingent on climatic conditions: almost twice as many species responded to TSF during the Big Wet and almost three times as many Post-Big Wet, compared with the Big Dry. Across climatic periods, a majority of species showed preference for mid to older post-fire vegetation. Main conclusions Variation in responses to TSF is likely due to the effect of climatic variation on resources. We suggest that, at sites of different post-fire age, interactions between TSF and climate may differentially influence both the availability and longevity of resources. Given climatic extremes are predicted to become increasingly severe with climate change, accounting for their influence on fauna-fire dynamics will require careful management of fire.
英文关键词	bird species climatic extreme El Niñ o fire response La Niñ a Mediterranean ecosystem post‐ fire age class semi‐ arid ecosystem time since fire
类型	Article ; Early Access
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000651640700001
WOS关键词	TERRESTRIAL ECOSYSTEMS ; RESOURCE PULSES ; THREATENED BIRD ; SMALL MAMMALS ; LONG-TERM ; EL-NINO ; HABITAT ; VEGETATION ; RAINFALL ; DESERT
WOS类目	Biodiversity Conservation ; Ecology
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/352120
作者单位	[Connell, Jemima; Hall, Mark A.; Watson, Simon J.; Clarke, Michael F.] La Trobe Univ, Dept Ecol Environm & Evolut, Bundoora, Vic 3086, Australia; [Hall, Mark A.] Western Sydney Univ, Hawkesbury Inst Environm, Penrith, NSW, Australia; [Nimmo, Dale G.] Charles Sturt Univ, Sch Environm Sci, Inst Land Water & Soc, Albury, NSW, Australia
推荐引用方式 GB/T 7714	Connell, Jemima,Hall, Mark A.,Nimmo, Dale G.,et al. Fire, drought and flooding rains: The effect of climatic extremes on bird species' responses to time since fire[J],2021.
APA	Connell, Jemima,Hall, Mark A.,Nimmo, Dale G.,Watson, Simon J.,&Clarke, Michael F..(2021).Fire, drought and flooding rains: The effect of climatic extremes on bird species' responses to time since fire.DIVERSITY AND DISTRIBUTIONS.
MLA	Connell, Jemima,et al."Fire, drought and flooding rains: The effect of climatic extremes on bird species' responses to time since fire".DIVERSITY AND DISTRIBUTIONS (2021).