DOI: 10.1111/gcb.12791
论文题名: Habitat and species identity, not diversity, predict the extent of refuse consumption by urban arthropods
作者: Youngsteadt E. ; Henderson R.C. ; Savage A.M. ; Ernst A.F. ; Dunn R.R. ; Frank S.D.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2015
卷: 21, 期: 3 起始页码: 1103
结束页码: 1115
语种: 英语
英文关键词: Ants
; Arthropods
; Biodiversity
; Ecosystem service
; Hurricane
; Urban food waste
; Urbanization
Scopus关键词: arthropod
; biodiversity
; ecosystem service
; habitat
; species diversity
; urbanization
; waste disposal
; New York [New York (STT)]
; New York [United States]
; United States
; Arthropoda
; Canis familiaris
; Formicidae
; Hexapoda
; Rattus
; Solanum tuberosum
; Tetramorium
; Tetramorium caespitum
; Vertebrata
; solid waste
; analysis
; animal
; arthropod
; biodiversity
; city
; ecosystem
; feeding behavior
; food chain
; physiology
; solid waste
; species difference
; United States
; vertebrate
; Animals
; Arthropods
; Biodiversity
; Cities
; Ecosystem
; Feeding Behavior
; Food Chain
; New York City
; Solid Waste
; Species Specificity
; Vertebrates
英文摘要: Urban green spaces provide ecosystem services to city residents, but their management is hindered by a poor understanding of their ecology. We examined a novel ecosystem service relevant to urban public health and esthetics: the consumption of littered food waste by arthropods. Theory and data from natural systems suggest that the magnitude and resilience of this service should increase with biological diversity. We measured food removal by presenting known quantities of cookies, potato chips, and hot dogs in street medians (24 sites) and parks (21 sites) in New York City, USA. At the same sites, we assessed ground-arthropod diversity and abiotic conditions, including history of flooding during Hurricane Sandy 7 months prior to the study. Arthropod diversity was greater in parks (on average 11 hexapod families and 4.7 ant species per site), than in medians (nine hexapod families and 2.7 ant species per site). However, counter to our diversity-based prediction, arthropods in medians removed 2-3 times more food per day than did those in parks. We detected no effect of flooding (at 19 sites) on this service. Instead, greater food removal was associated with the presence of the introduced pavement ant (Tetramorium sp. E) and with hotter, drier conditions that may have increased arthropod metabolism. When vertebrates also had access to food, more was removed, indicating that arthropods and vertebrates compete for littered food. We estimate that arthropods alone could remove 4-6.5 kg of food per year in a single street median, reducing its availability to less desirable fauna such as rats. Our results suggest that species identity and habitat may be more relevant than diversity for predicting urban ecosystem services. Even small green spaces such as street medians provide ecosystem services that may complement those of larger habitat patches across the urban landscape. © 2014 John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/61828
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of Entomology, North Carolina State University, Raleigh, NC, United States; Department of Biological Sciences, North Carolina State University, Raleigh, NC, United States; Teach for America, North Carolina Piedmont Triad, Raleigh, NC, United States
Recommended Citation:
Youngsteadt E.,Henderson R.C.,Savage A.M.,et al. Habitat and species identity, not diversity, predict the extent of refuse consumption by urban arthropods[J]. Global Change Biology,2015-01-01,21(3)