Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1098/rsos.171872 |
Assessing the potential for intraguild predation among taxonomically disparate micro-carnivores: marsupials and arthropods | |
Potter, Tamara I.1; Greenville, Aaron C.1,2,3; Dickman, Christopher R.1,2,3 | |
通讯作者 | Potter, Tamara I. |
来源期刊 | ROYAL SOCIETY OPEN SCIENCE
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ISSN | 2054-5703 |
出版年 | 2018 |
卷号 | 5期号:5 |
英文摘要 | Interspecific competition may occur when resources are limited, and is often most intense between animals in the same ecological guild. Intraguild predation (IGP) is a distinctive form of interference competition, where a dominant predator selectively kills subordinate rivals to gain increased access to resources. However, before IGP can be identified, organisms must be confirmed as members of the same guild and occur together in space and time. The lesser hairy-footed dunnart (Sminthopsis youngsoni, Dasyuridae) is a generalist marsupial insectivore in arid Australia, but consumes wolf spiders (Lycosa spp., Lycosidae) disproportionately often relative to their availability. Here, we test the hypothesis that this disproportionate predation is a product of frequent encounter rates between the interactants due to high overlap in their diets and use of space and time. Diet and prey availability were determined using direct observations and invertebrate pitfall trapping, microhabitat use by tracking individuals of both species-groups, and temporal activity using spotlighting and camera traps. Major overlap (greater than 75% similarity) was found in diet and temporal activity, and weaker overlap in microhabitat use. Taken together, these findings suggest reasonable potential, for the first time, for competition and intraguild predation to occur between taxa as disparate as marsupials and spiders. |
英文关键词 | intraguild predation marsupials micro-carnivores Simpson Desert spiders |
类型 | Article |
语种 | 英语 |
国家 | Australia |
收录类别 | SCI-E |
WOS记录号 | WOS:000433498000039 |
WOS关键词 | ARID CENTRAL AUSTRALIA ; SMINTHOPSIS-YOUNGSONI MARSUPIALIA ; GUILD STRUCTURE ; SMALL MAMMALS ; INSECTIVOROUS MARSUPIALS ; ECOLOGICAL COMMUNITIES ; DASYURID MARSUPIALS ; HABITAT SELECTION ; ACTIVITY PATTERNS ; RATTUS-LUTREOLUS |
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/2XILL650/212843 |
作者单位 | 1.Univ Sydney, Sch Life & Environm Sci, Desert Ecol Res Grp, Sydney, NSW, Australia; 2.Univ Sydney, Natl Environm Sci Programme Threatened Species Re, Sydney, NSW, Australia; 3.Univ Sydney, Long Term Ecol Res Network, Terr Ecosyst Res Network, Sydney, NSW, Australia |
推荐引用方式 GB/T 7714 | Potter, Tamara I.,Greenville, Aaron C.,Dickman, Christopher R.. Assessing the potential for intraguild predation among taxonomically disparate micro-carnivores: marsupials and arthropods[J],2018,5(5). |
APA | Potter, Tamara I.,Greenville, Aaron C.,&Dickman, Christopher R..(2018).Assessing the potential for intraguild predation among taxonomically disparate micro-carnivores: marsupials and arthropods.ROYAL SOCIETY OPEN SCIENCE,5(5). |
MLA | Potter, Tamara I.,et al."Assessing the potential for intraguild predation among taxonomically disparate micro-carnivores: marsupials and arthropods".ROYAL SOCIETY OPEN SCIENCE 5.5(2018). |
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