Arid
DOI10.1111/aec.12334
Long-term patterns of invertebrate abundance and relationships to environmental factors in arid Australia
Kwok, Alan B. C.1,2; Wardle, Glenda M.1,2; Greenville, Aaron C.1,2; Dickman, Chris R.1,2
通讯作者Kwok, Alan B. C.
来源期刊AUSTRAL ECOLOGY
ISSN1442-9985
EISSN1442-9993
出版年2016
卷号41期号:5页码:480-491
英文摘要

Resource pulses are a key feature of semi-arid and arid ecosystems and are generally triggered by rainfall. While rainfall is an acknowledged driver of the abundance and distribution of larger animals, little is known about how invertebrate communities respond to rain events or to vegetative productivity. Here we investigate Ordinal-level patterns and drivers of ground-dwelling invertebrate abundance across 6years of sampling in the Simpson Desert, central Australia. Between February 1999 and February 2005, a total of 174381 invertebrates were sampled from 32 Orders. Ants were the most abundant taxon, comprising 83% of all invertebrates captured, while Collembola at 10.3% of total captures were a distant second over this period. Temporal patterns of the six invertebrate taxa specifically analysed (Acarina, ants, Araneae, Coleoptera, Collembola and Thysanura) were dynamic over the sampling period, and patterns of abundance were taxon-specific. Analyses indicate that all six taxa showed a positive relationship with the cover of non-Triodia vegetation. Other indicators of vegetative productivity (seeding and flowering) also showed positive relationships with certain taxa. Although the influence of rainfall was taxon-dependent, no taxon was affected by short-term rainfall (up to 18days prior to survey). The abundance of Acarina, ants, and Coleoptera increased with greater long-term rainfall (up to 18months prior to survey), whilst Araneae showed the opposite effect. Temperature and dune zone (dune crest vs. swale) also had taxon-specific effects. These results show that invertebrates in arid ecosystems are influenced by a variety of abiotic factors, at multiple scales, and that responses to rainfall are not as strong or as predictable as those seen for other taxa. Our results highlight the diversity of invertebrates in our study region and emphasize the need for targeted long-term sampling to enhance our understanding of the ecology of these taxa and the role they play in arid ecosystems.


英文关键词arthropod desert rainfall spinifex
类型Article
语种英语
国家Australia
收录类别SCI-E
WOS记录号WOS:000382787000002
WOS关键词ANTS POGONOMYRMEX-RUGOSUS ; SIMPSON DESERT ; POPULATION-DYNAMICS ; CHIHUAHUAN DESERT ; SMALL MAMMALS ; INTRAGUILD INTERACTIONS ; SOIL INVERTEBRATES ; ECOSYSTEM SERVICES ; PLANT PRODUCTIVITY ; RESOURCE PULSES
WOS类目Ecology
WOS研究方向Environmental Sciences & Ecology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/191669
作者单位1.Univ Sydney, Desert Ecol Res Grp, Sch Biol Sci, Sydney, NSW, Australia;
2.Terr Ecosyst Res Network, Long Term Ecol Res Network, Brisbane, Qld, Australia
推荐引用方式
GB/T 7714
Kwok, Alan B. C.,Wardle, Glenda M.,Greenville, Aaron C.,et al. Long-term patterns of invertebrate abundance and relationships to environmental factors in arid Australia[J],2016,41(5):480-491.
APA Kwok, Alan B. C.,Wardle, Glenda M.,Greenville, Aaron C.,&Dickman, Chris R..(2016).Long-term patterns of invertebrate abundance and relationships to environmental factors in arid Australia.AUSTRAL ECOLOGY,41(5),480-491.
MLA Kwok, Alan B. C.,et al."Long-term patterns of invertebrate abundance and relationships to environmental factors in arid Australia".AUSTRAL ECOLOGY 41.5(2016):480-491.
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