Testing for potential survey bias: the effect of roads, urban areas and nature reserves on a southern African mammal data set

被引：53

作者：

Freitag, S. ^{[1
,2
]}

Hobson, C. ^{[3
]}

Biggs, H. C. ^{[2
]}

Van Jaarsveld, A. S. ^{[1
]}

机构：

[1] Univ Pretoria, Dept Zool & Entomol, ZA-0001 Pretoria, South Africa

[2] S African Natl Pk, Kruger Natl Pk, Sci Serv, ZA-1350 Skukuza, South Africa

[3] Autodesk Africa, ZA-0046 Hennopsmeer, South Africa

来源：

ANIMAL CONSERVATION | 1998年 / 1卷 / 02期

关键词：

D O I：

10.1111/j.1469-1795.1998.tb00019.x

中图分类号：

X176 [生物多样性保护];

学科分类号：

090705 ;

摘要：

Mammalian record collection densities and bias attributable to observer survey preferences are assessed for the former Transvaal region of South Africa using a geographic information system (GIS). A method is presented which may be used to distinguish between highly biased and relatively unbiased sampling densities. Small mammal survey records within the region appear to have been collected relatively independently of the road and urban area infrastructure and are not biased towards nature reserves. Large mammal data on the other hand has mostly been collected within existing conservation areas. Although this latter data set would appear to be highly biased, it does accurately reflect the current distributions of larger mammalian taxa, which are presently almost entirely restricted to conservation areas.

引用

页码：119 / 127

页数：9