Arid
DOI10.1093/jmammal/gyy139
Habitat structure influences refuge use by two sympatric species of Neotropical forest rodents
Bretscher, Andrew1; Dittel, Jacob W.2,3; Lambert, Thomas D.1; Adler, Gregory H.2
通讯作者Dittel, Jacob W.
来源期刊JOURNAL OF MAMMALOGY
ISSN0022-2372
EISSN1545-1542
出版年2018
卷号99期号:6页码:1465-1471
英文摘要

Terrestrial echimyid rodents typically use subterranean cavities and hollow logs as refuges. We examined habitat characteristics at refuges used by 2 such species of rodents, Proechimys semispinosus and Hoplomys gymnurus, to better understand coexistence of these morphologically similar sympatric species. The study was performed in a lowland moist forest in central Panama from 2009 to 2013. Sewing-bobbin tracking was used to locate refuges. We examined refuge habitat at 2 scales. At a coarser scale (microhabitat), we measured 10 variables within a 5-m radius around each refuge site and an associated random point, which represented available habitat. At a finer scale (refuge entrance), we measured 11 variables within a radius of 0.5 m centered on each refuge and an associated random point. We used discriminant function analysis to search for differences between refuge and available habitats at both scales and for both species separately. We located 70 refuges of both species. Refuges used by P. semispinosus were positively associated with litter depth, canopy openness, numbers and sizes of nearby logs, and proximity to tree-fall gaps, which all indicate forest disturbances. Hoplomys gymnurus refuges did not show any differences from available habitat. Lastly, we found no differences in refuge use between the sexes or age classes for either species. We conclude that interspecific competition for refuges is generally unlikely to be important because small-scale differences in refuge habitats facilitate coexistence.


英文关键词armored rat Echimyidae Hoplomys gymnurus Panama Proechimys semispinosus spiny rat
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000452732300018
WOS关键词PROECHIMYS-SEMISPINOSUS ; SEED DISPERSAL ; TRACKING ; DESERT ; SPOOL
WOS类目Zoology
WOS研究方向Zoology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/211141
作者单位1.Frostburg State Univ, Biol Dept, 101 Braddock Rd, Frostburg, MD 21532 USA;
2.Univ Wisconsin, 800 Algoma Blvd, Oshkosh, WI 54901 USA;
3.Univ North Alabama, Dept Biol, Box 5048,One Harrison Plaza, Florence, AL 35632 USA
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GB/T 7714
Bretscher, Andrew,Dittel, Jacob W.,Lambert, Thomas D.,et al. Habitat structure influences refuge use by two sympatric species of Neotropical forest rodents[J],2018,99(6):1465-1471.
APA Bretscher, Andrew,Dittel, Jacob W.,Lambert, Thomas D.,&Adler, Gregory H..(2018).Habitat structure influences refuge use by two sympatric species of Neotropical forest rodents.JOURNAL OF MAMMALOGY,99(6),1465-1471.
MLA Bretscher, Andrew,et al."Habitat structure influences refuge use by two sympatric species of Neotropical forest rodents".JOURNAL OF MAMMALOGY 99.6(2018):1465-1471.
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