THE SCALE OF DEMOGRAPHIC HETEROGENEITY IN A POPULATION OF PEROMYSCUS-LEUCOPUS

被引：25

作者：

KROHNE, DT ^{[1
]}

BURGIN, AB ^{[1
]}

机构：

[1] INDIANA UNIV, DEPT BIOL, BLOOMINGTON, IN 47405 USA

来源：

OECOLOGIA | 1990年 / 82卷 / 01期

关键词：

Demography; Peromyscus; Population regulation; Scaling;

D O I：

10.1007/BF00318539

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

The patterns of spatial heterogeneity in density and demography were studied in a population of Peromyscus leucopus inhabiting a deciduous forest in west-central Indiana. A series of 9 live-trapping grids sampled densities from 3 spatial scales: 3 ha, 80 ha and 350 km2. We found high levels of variation within all three spatial scales. There was as much variation within a single, large grid as within the entire Sugar Creek Valley (350 km2). The patterns of density variation were not temporally stable and thus represent variation in demographic processes rather than simply differences in habitat quality. We suggest that the Sugar Creek Valley represents a metapopulation of Peromyscus leucopus composed of a number of temporally unstable subpopulations. This structure provides considerable demographic variation that dispersing animals can exploit. © 1990 Springer-Verlag.

引用

页码：97 / 101

页数：5

共 28 条

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