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摘要:
Although ants are an ecologically dominant and extensively studied faunal group throughout the tropics,there is a poor understanding of tropical ant diversity and distribution at large spatial scales.Here we use a collection developed from 3 decades of ant surveys to present the first analysis of ant diversity and biogeography of a large tropical region.Our objective was to document the species richness,composition,and biogeographic distributions of the ant fauna of the 400 000 krn2 “Top End” of Australia's Northern Territory.The known Top End ant fauna comprises 901 native species from 59 genera.The richest genera are Pheidole (90 species),Melophorus (83),Monomorium (83),Camponotus (71),Meranoplus (63),Polyrhachis (57),Rhytidoponera (50),Tetramorium (43),Cerapachys (32),and Iridomyrmex (31).The fauna is the center of diverse radiations within species-groups of genera such as Meranoplus,Rhytidoponera,and Leptogenys.It also includes IndoMalayan species that have likely bypassed the normal dispersal route into Australia through Cape York Peninsula in North Queensland.Faunistic similarity with other regions of far northern Australia is associated more with rainfall than with geographic proximity.Most (60%) of Top End ant species have not been recorded elsewhere,and,despite uncertainties relating to species delimitation and sampling intensity,this appears to be a credible estimate of the level ofendemism.Such exceptionally high endemism can be attributed to the Top End's geographic isolation from other regions of northern Australia with comparably high rainfall.
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篇名 Diversity and biogeography of a species-rich ant fauna of the Australian seasonal tropics
来源期刊 中国昆虫科学(英文版) 学科
关键词 endemism northern Australia Northern Territory species distribution tropical savanna
年,卷(期) 2018,(3) 所属期刊栏目
研究方向 页码范围 519-526
页数 8页 分类号
字数 语种 英文
DOI 10.1111/1744-7917.12402
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研究主题发展历程
节点文献
endemism
northern Australia
Northern Territory
species distribution
tropical savanna
研究起点
研究来源
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研究去脉
引文网络交叉学科
相关学者/机构
期刊影响力
中国昆虫科学(英文版)
双月刊
1672-9609
11-3386/Q
北京北辰西路1号院
eng
出版文献量(篇)
1404
总下载数(次)
0
总被引数(次)
4714
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