Scale dependence in wildlife habitat assessment

DOI Web Site

Bibliographic Information

Other Title
  • 野生動物の生息地評価におけるスケール依存性
  • ヤセイ ドウブツ ノ セイソクチ ヒョウカ ニ オケル スケール イソンセイ

Search this article

Abstract

<p>Assessing wildlife habitat is important for elucidating the ecology of target animals and the conservation of habitats. At this time, it is necessary to evaluate what animals are selected and how they are distributed. Animal habitat selection and distribution patterns result from the decision-making process of how animals react to the landscape structures. It is important to evaluate the spatial scale on which processes are captured (individual to individual population, local population, etc.). This paper deals with the importance of spatial scales in wildlife habitat assessment; it summarizes the cases in which spatial scales (extent and grain size) were taken into consideration in previous studies and introduces the scale dependence of resource selection that the authors examined for Japanese macaques (Macaca fuscata). Crop damage is the result of the decision-making process on which Japanese macaques are selected. Here, the paper clarifies the scale dependence of how this process responds to spatial spread. It was found that environmental factors related to crop damage change depending on the spatial scale setting. However, it was also found that the linear relationship between crop damage and each environmental factor was constant, independent of the spatial scale. In other words, it was shown that the same measures may have different effects depending on the extent to which the measures are implemented when damage is being managed. Furthermore, the paper estimates the importance of scale setting in wildlife management by finding the optimal spatial scale for each herd. A meaningful discussion of spatial scales in habitat assessments is necessary to develop concrete policies for wildlife management.</p>

Journal

Keywords

Details 詳細情報について

Report a problem

Back to top