4.4 Article

Local coexistence of native and invasive ant species is associated with micro-spatial shifts in foraging activity

期刊

BIOLOGICAL INVASIONS
卷 24, 期 3, 页码 761-773

出版社

SPRINGER
DOI: 10.1007/s10530-021-02678-2

关键词

Biological invasions; Conservation; Formicidae; Impacts; Microclimate; Shading conditions; Tapinoma magnum

资金

  1. Swiss Canton Vaud
  2. Fond National Suisse
  3. Programme de la Famille Sandoz-Monique de Meuron pour la releve universitaire

向作者/读者索取更多资源

The study found that fine-scale microclimatic heterogeneity could promote coexistence between native and invasive animal competitors. Despite lower ant species richness and diversity in invaded sites, some native ant species, such as the black garden ant Lasius niger, were able to persist at high densities in invaded areas.
Invasive species often displace native species by outcompeting them. Yet, some native species can persist even in heavily invaded areas. The mechanisms mediating this local coexistence are still unclear. Fine-scale microclimatic heterogeneity could promote the local coexistence of native and invasive animal competitors. We tested if native ant species could coexist with a recent ant invader, Tapinoma magnum, by shifting their foraging activity in time or space to different microclimatic conditions. We compared the foraging activity of native epigeic ant species among invaded and uninvaded sites. We collected ants at baits in green spaces on the north, east, south and west sides of buildings in the morning, at noon and in the afternoon to test if native species foraged under different microclimatic conditions in invaded sites. Invaded sites had lower ant species richness, diversity, and relative abundance. The native black garden ant Lasius niger - one of the most widespread Palearctic ant species - persisted at high densities in invaded areas but foraged less on the east side of buildings and more on the west side. Microclimatic heterogeneity might promote native and invasive species coexistence by allowing some native species to shift their foraging behaviour to locally avoid or outcompete invasive competitors. Better understanding how fine-scale micro-environmental heterogeneity affects native species' persistence in invaded areas could help to predict and locally mitigate the negative impacts of biological invasions.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.4
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据