Assessing the landscape-dependent restoration potential of abandoned farmland using a hierarchical model of bird communities.
Assessing the landscape-dependent restoration potential of abandoned farmland using a hierarchical model of bird communities.
复制标题
使用鸟类群落分层模型评估废弃农田的景观依赖性恢复潜力。
DOI：
10.1016/j.agee.2018.06.014
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
Nakamura F.
中科院分区：
文献类型：
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作者：
Hanioka M;Yamaura Y;Senzaki M;Yamanaka S;Kawamura K;Nakamura F.
农业的扩张和集约化导致生物多样性的大幅减少。然而，近年来全球废弃农田面积不断增加，预计将为各种生物提供新的栖息地。尽管农业景观生物多样性保护的潜力很大，但很少有研究对包括废弃农田在内的多种土地利用类型的生物多样性进行比较。我们研究了主要土地利用类型（湿地、草地、森林、农田、废弃农田）和周围景观开放度（周围地区湿地/草地的比例）对鸟类群落和四个功能群（湿地、草地、农田和森林物种）的丰度和物种丰富度的影响日本北方北海道中部农业景观。弃耕地湿地/草地物种的丰度介于其原始生境（湿地和草地）和其他土地利用（森林和农田）之间，且与景观开放度呈正相关。森林物种的丰富度在森林地区往往高于其他土地利用类型的地区，并没有与景观开放度。鸟类群落的丰度和物种丰富度预计将是高的大弃耕区周围的开阔地。对于湿地物种，而总丰度预计将主要介导的景观开放度，物种丰富度预计将主要介导的农田弃耕面积。在我们的研究区域的废弃农田目前不会有很高的保护价值的森林鸟类。然而，放弃被开阔地包围的农田将显着改善农业景观中湿地/草地鸟类的保护。鉴于草地、湿地和低密度农田面积的减少，农田撂荒为保护和恢复湿地和草地鸟类数量的减少提供了机会。
Expansion and intensification of agriculture have led to an immense decrease in biodiversity. However, the area of abandoned farmland has been increasing globally in recent years and is expected to provide novel habitats for various organisms. Despite the promising potential for biodiversity conservation in agricultural landscapes, few studies have compared biodiversity among multiple land use types, including abandoned farmland. We examined the effects of major land use types (wetland, grassland, forest, farmland, abandoned farmland) and the surrounding landscape openness (proportion of wetland/grassland in the surrounding area) on the abundance and species richness of bird communities and four functional groups (wetland, grassland, farmland, and forest species) in the agricultural landscape of central Hokkaido in northern Japan. The abundance of wetland/grassland species in abandoned farmland tended to be intermediate between those of their original habitats (wetland and grassland) and other land uses (forest and farmland), and to be positively associated with the landscape openness. The abundance of forest species tended to be higher in forest areas than in areas with other land use types and was not associated with the landscape openness. The abundance and species richness of the bird community were predicted to be high in large abandoned farmland areas surrounded by open land. For wetland species, whereas total abundance was predicted to be primarily mediated by landscape openness, species richness was predicted to be primarily mediated by the farmland abandonment area. The abandoned farmland in our study area would not currently have a high conservation value for forest birds. However, the abandonment of farmland surrounded by open land would significantly improve the conservation of wetland/grassland birds in the agricultural landscape. Given the decline in the area of grassland, wetland, and low-intensity farmland, farmland abandonment provides an opportunity to conserve and restore the declining populations of wetland and grassland birds.