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In ecology, edge effects refer to the changes in population or community structures that occur at the boundary of two habitats. Areas with small habitat fragments exhibit especially pronounced edge effects that may extend throughout the range. As the edge effects increase, the boundary habitat allows for greater biodiversity. ==Types== * Inherent – Natural features stabilize the border location. * Induced – Transient natural disturbances (e.g., fire or flood) or human related activities, subject borders to successional changes over time. * Narrow – One habitat abruptly ends and another begins (e.g., an agricultural field.) * Wide (ecotone) – Substantial distance separates border from point where physical conditions and vegetation do not differ from interior of patch. * Convoluted – Border is non-linear. * Perforated – Border has gaps that host other habitats. Height can create borders between patches as well. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Edge effects」の詳細全文を読む スポンサード リンク
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