Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.jaridenv.2010.05.025 |
Pack rats (Neotoma spp.): Keystone ecological engineers? | |
Whitford, Walter G.2; Steinberger, Yosef1 | |
通讯作者 | Steinberger, Yosef |
来源期刊 | JOURNAL OF ARID ENVIRONMENTS |
ISSN | 0140-1963 |
EISSN | 1095-922X |
出版年 | 2010 |
卷号 | 74期号:11页码:1450-1455 |
英文摘要 | The potential role of two species of pack rats (Neotoma albigula and Neotoma micropus) as keystone ecological engineers was examined by estimating the species diversity of invertebrates living in the nest middens, and nitrogen mineralization rates in soils associated with the middens. Although pack-rat middens in tarbush (Flourensia cernua) shrublands were smaller than those in creostebush (Larrea tridentata) shrublands, they housed a higher abundance and diversity of arthropods. The Neotoma spp. middens were an important microhabitat for crickets (Gryllus sp.), wolf spiders (Lycosa spp.), and lycid beetle larvae (Lycidae) in all of the shrub habitats. There were five arthropod taxa that occupied all middens in the creosote-bush shrubland, and 12 arthropod taxa that occupied all middens in the tarbush shrubland. Soils associated with pack-rat middens had significantly higher soil organic-matter content than reference soils. Nitrogen mineralization was significantly higher in soils associated with pack-rat middens than in reference soils. Neotoma spp. create habitats with moderate microclimates that are essential for several invertebrates, thus contributing to maintenance of biodiversity. The effects of middens on soil organic matter and nitrogen mineralization create nutrient-rich patches. Neotoma spp. affect biodiversity and critical ecosystem processes, thus supporting the designation of keystone ecological engineers. (C) 2010 Elsevier Ltd. All rights reserved. |
英文关键词 | Habitat Mineralization Species diversity Stick nest Woodrat |
类型 | Article |
语种 | 英语 |
国家 | Israel ; USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000282547600012 |
WOS关键词 | DESERT ECOSYSTEM ; SOIL PROPERTIES ; NEGEV DESERT ; CONSTRUCTION ; COMMUNITIES ; ORGANISMS ; AUSTRALIA ; HABITATS ; RODENTIA ; WOODRATS |
WOS类目 | Ecology ; Environmental Sciences |
WOS研究方向 | Environmental Sciences & Ecology |
来源机构 | New Mexico State University |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/164977 |
作者单位 | 1.Bar Ilan Univ, Mina & Everard Goodman Fac Life Sci, IL-52900 Ramat Gan, Israel; 2.New Mexico State Univ, USDA ARS Jornada Expt Range, Las Cruces, NM 88003 USA |
推荐引用方式 GB/T 7714 | Whitford, Walter G.,Steinberger, Yosef. Pack rats (Neotoma spp.): Keystone ecological engineers?[J]. New Mexico State University,2010,74(11):1450-1455. |
APA | Whitford, Walter G.,&Steinberger, Yosef.(2010).Pack rats (Neotoma spp.): Keystone ecological engineers?.JOURNAL OF ARID ENVIRONMENTS,74(11),1450-1455. |
MLA | Whitford, Walter G.,et al."Pack rats (Neotoma spp.): Keystone ecological engineers?".JOURNAL OF ARID ENVIRONMENTS 74.11(2010):1450-1455. |
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