Habitat loss, fragmentation and degradation have pervasive detrimental effects on tropical forest biodiversity, but the role of the surrounding land use (i.e. matrix) in determining the severity of these impacts remains poorly understood. We surveyed bird species across an interior-edge-matrix gradient to assess the effects of matrix type on biodiversity at 49 different sites with varying levels of landscape fragmentation in the Brazilian Atlantic Forest - a highly threatened biodiversity hotspot. Our findings revealed that both area and edge effects are more pronounced in forest patches bordering pasture matrix, while patches bordering Eucalyptus plantation maintained compositionally similar bird communities between the edge and the interior, in addition to exhibiting reduced effects of patch size. These results suggest that the type of matrix in which forest fragments are situated can explain a substantial amount of the widely-reported variability in biodiversity responses to forest loss and fragmentation. This article is protected by copyright. All rights reserved.

中文翻译：

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相邻土地利用对面积和边缘效应的调解

栖息地丧失、破碎化和退化对热带森林生物多样性具有普遍的有害影响，但周围土地利用（即矩阵）在确定这些影响的严重程度方面的作用仍然知之甚少。我们调查了跨内部边缘矩阵梯度的鸟类物种，以评估矩阵类型对巴西大西洋森林中 49 个不同地点的生物多样性的影响，这些地点具有不同程度的景观破碎化程度——巴西大西洋森林是一个高度受威胁的生物多样性热点。我们的研究结果表明，面积和边缘效应在与牧场基质接壤的森林斑块中更为明显，而与桉树种植园接壤的斑块在边缘和内部之间保持了组成相似的鸟类群落，除了斑块大小的影响减小之外。这些结果表明，森林碎片所在的基质类型可以解释大量广泛报道的生物多样性对森林丧失和破碎化反应的可变性。本文受版权保护。版权所有。