Arid
DOI10.1098/rsos.172055
Testing the assumptions of the pyrodiversity begets biodiversity hypothesis for termites in semi-arid Australia
Davis, Hayley1; Ritchie, Euan G.1; Avitabile, Sarah2; Doherty, Tim1; Nimmo, Dale G.3
通讯作者Nimmo, Dale G.
来源期刊ROYAL SOCIETY OPEN SCIENCE
ISSN2054-5703
出版年2018
卷号5期号:4
英文摘要

Fire shapes the composition and functioning of ecosystems globally. In many regions, fire is actively managed to create diverse patch mosaics of fire-ages under the assumption that a diversity of post-fire-age classes will provide a greater variety of habitats, thereby enabling species with differing habitat requirements to coexist, and enhancing species diversity (the pyrodiversity begets biodiversity hypothesis). However, studies provide mixed support for this hypothesis. Here, using termite communities in a semi-arid region of southeast Australia, we test four key assumptions of the pyrodiversity begets biodiversity hypothesis (i) that fire shapes vegetation structure over sufficient time frames to influence species’ occurrence, (ii) that animal species are linked to resources that are themselves shaped by fire and that peak at different times since fire, (iii) that species’ probability of occurrence or abundance peaks at varying times since fire and (iv) that providing a diversity of fire-ages increases species diversity at the landscape scale. Termite species and habitat elements were sampled in 100 sites across a range of fire-ages, nested within 20 landscapes chosen to represent a gradient of low to high pyrodiversity. We used regression modelling to explore relationships between termites, habitat and fire. Fire affected two habitat elements (coarse woody debris and the cover of woody vegetation) that were associated with the probability of occurrence of three termite species and overall species richness, thus supporting the first two assumptions of the pyrodiversity hypothesis. However, this did not result in those species or species richness being affected by fire history per se. Consequently, landscapes with a low diversity of fire histories had similar numbers of termite species as landscapes with high pyrodiversity. Our work suggests that encouraging a diversity of fire-ages for enhancing termite species richness in this study region is not necessary.


英文关键词fire ecology mallee pyrodiversity landscape heterogeneity fire management invertebrates
类型Article
语种英语
国家Australia
收录类别SCI-E
WOS记录号WOS:000431110100043
WOS关键词PRESCRIBED FIRE ; LONG-TERM ; SOIL TEMPERATURES ; ANT COMMUNITIES ; DIVERSITY ; VEGETATION ; CONSERVATION ; MALLEE ; RESPONSES ; ISOPTERA
WOS类目Multidisciplinary Sciences
WOS研究方向Science & Technology - Other Topics
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/212842
作者单位1.Deakin Univ, Ctr Integrat Ecol, Sch Life & Environm Sci, Burwood Campus, Geelong, Vic 3220, Australia;
2.La Trobe Univ, Dept Zool, Bundoora, Vic 3086, Australia;
3.Charles Sturt Univ, Inst Land Water & Soc, Sch Environm Sci, Albury, NSW 2640, Australia
推荐引用方式
GB/T 7714
Davis, Hayley,Ritchie, Euan G.,Avitabile, Sarah,et al. Testing the assumptions of the pyrodiversity begets biodiversity hypothesis for termites in semi-arid Australia[J],2018,5(4).
APA Davis, Hayley,Ritchie, Euan G.,Avitabile, Sarah,Doherty, Tim,&Nimmo, Dale G..(2018).Testing the assumptions of the pyrodiversity begets biodiversity hypothesis for termites in semi-arid Australia.ROYAL SOCIETY OPEN SCIENCE,5(4).
MLA Davis, Hayley,et al."Testing the assumptions of the pyrodiversity begets biodiversity hypothesis for termites in semi-arid Australia".ROYAL SOCIETY OPEN SCIENCE 5.4(2018).
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