Arid
Influence of grassland type, nest type, and shrub encroachment on predation of artificial nests in Chihuahuan desert grasslands
Mason, LC; Desmond, MJ; Agudelo, MS
通讯作者Desmond, MJ
来源期刊WESTERN NORTH AMERICAN NATURALIST
ISSN1527-0904
出版年2005
卷号65期号:2页码:196-201
英文摘要

Nest predation on artificial nests was examined in relation to nest type, grassland type, and shrub encroachment in Chihuahuan Desert grasslands in southern New Mexico. Open-cup ground, open-cup shrub, and spherical shrub nests (n = 210), mimicking Eastern Meadowlarks (Sturnella magna), Black-throated Sparrows (Amphispiza bilineata), and Cactus Wrens (Campylorhynchus brunneicapillus), were placed in 10 grasslands of tobosa (Pleuraphis mutica) and black grama (Bouteloua eripoda) with low and heavy levels of mesquite encroachment. Nest predation varied among nest types, grassland types, and shrub encroachment, with highest levels of predation occurring on open-cup shrub nests in tobosa grasslands with heavy shrub encroachment. We detected a significant interaction between nest type and shrub encroachment, but not between grassland type and nest type or grassland type and shrub encroachment. Combined predation rates from the 3 nest types were positively associated with shrub density. The encroachment of shrubs into desert grasslands may act as a corridor for a diversity of species historically not associated with desert grasslands to occupy or move through a patch, increasing vuluerability to nest predation.


英文关键词predation desertification shrub encroachment desert grasslands artificial nests nest type Coturnix Quail passerines tobosa black grama
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000228987500007
WOS关键词REPRODUCTIVE SUCCESS ; MIGRATORY BIRDS ; DESERTIFICATION ; HABITAT ; LANDSCAPE ; PERSPECTIVES ; COMMUNITIES ; VEGETATION ; SITES ; REAL
WOS类目Biodiversity Conservation ; Ecology
WOS研究方向Biodiversity & Conservation ; 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/2XILL650/150512
作者单位(1)New Mexico State Univ, Dept Fishery & Wildlife Sci, Las Cruces, NM 88003 USA
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Mason, LC,Desmond, MJ,Agudelo, MS. Influence of grassland type, nest type, and shrub encroachment on predation of artificial nests in Chihuahuan desert grasslands[J]. New Mexico State University,2005,65(2):196-201.
APA Mason, LC,Desmond, MJ,&Agudelo, MS.(2005).Influence of grassland type, nest type, and shrub encroachment on predation of artificial nests in Chihuahuan desert grasslands.WESTERN NORTH AMERICAN NATURALIST,65(2),196-201.
MLA Mason, LC,et al."Influence of grassland type, nest type, and shrub encroachment on predation of artificial nests in Chihuahuan desert grasslands".WESTERN NORTH AMERICAN NATURALIST 65.2(2005):196-201.
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