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DOI: 10.1371/journal.pone.0124807
论文题名:
Riverine Landscape Patch Heterogeneity Drives Riparian Ant Assemblages in the Scioto River Basin, USA
作者: Paradzayi Tagwireyi; S. Mažeika P. Sullivan
刊名: PLOS ONE
ISSN: 1932-6203
出版年: 2015
发表日期: 2015-4-20
卷: 10, 期:4
语种: 英语
英文关键词: Ants ; Spatial and landscape ecology ; Freshwater ecology ; Species diversity ; Shannon index ; Swamps ; Plant ecology ; Rivers
英文摘要: Although the principles of landscape ecology are increasingly extended to include riverine landscapes, explicit applications are few. We investigated associations between patch heterogeneity and riparian ant assemblages at 12 riverine landscapes of the Scioto River, Ohio, USA, that represent urban/developed, agricultural, and mixed (primarily forested, but also wetland, grassland/fallow, and exurban) land-use settings. Using remotely-sensed and ground-collected data, we delineated riverine landscape patch types (crop, grass/herbaceous, gravel, lawn, mudflat, open water, shrub, swamp, and woody vegetation), computed patch metrics (area, density, edge, richness, and shape), and conducted coordinated sampling of surface-active Formicidae assemblages. Ant density and species richness was lower in agricultural riverine landscapes than at mixed or developed reaches (measured using S [total number of species], but not using Menhinick’s Index [DM]), whereas ant diversity (using the Berger-Park Index [DBP]) was highest in agricultural reaches. We found no differences in ant density, richness, or diversity among internal riverine landscape patches. However, certain characteristics of patches influenced ant communities. Patch shape and density were significant predictors of richness (S: R2 = 0.72; DM: R2=0.57). Patch area, edge, and shape emerged as important predictors of DBP (R2 = 0.62) whereas patch area, edge, and density were strongly related to ant density (R2 = 0.65). Non-metric multidimensional scaling and analysis of similarities distinguished ant assemblage composition in grass and swamp patches from crop, gravel, lawn, and shrub as well as ant assemblages in woody vegetation patches from crop, lawn, and gravel (stress = 0.18, R2 = 0.64). These findings lend insight into the utility of landscape ecology to river science by providing evidence that spatial habitat patterns within riverine landscapes can influence assemblage characteristics of riparian arthropods.
URL: http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0124807&type=printable
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/20749
Appears in Collections:过去全球变化的重建
影响、适应和脆弱性
科学计划与规划
气候变化与战略
全球变化的国际研究计划
气候减缓与适应
气候变化事实与影响

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作者单位: School of Environment & Natural Resources, The Ohio State University, 2021 Coffey Rd., Columbus, OH, 43210, United States of America;School of Environment & Natural Resources, The Ohio State University, 2021 Coffey Rd., Columbus, OH, 43210, United States of America

Recommended Citation:
Paradzayi Tagwireyi,S. Mažeika P. Sullivan. Riverine Landscape Patch Heterogeneity Drives Riparian Ant Assemblages in the Scioto River Basin, USA[J]. PLOS ONE,2015-01-01,10(4)
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