School of Environmental and Forest Sciences, University of Washington, Seattle, Washington United States of America.
PLoS One. 2013 Jul 2;8(7):e68025. doi: 10.1371/journal.pone.0068025. Print 2013.
Wide-ranging species cannot persist in reserves alone. Consequently, there is growing interest in the conservation value of agricultural lands that separate or buffer natural areas. The value of agricultural lands for wildlife habitat and connectivity varies as a function of the crop type and landscape context, and quantifying these differences will improve our ability to manage these lands more effectively for animals. In southern California, many species are present in avocado orchards, including mammalian carnivores. We examined occupancy of avocado orchards by mammalian carnivores across agricultural-wildland gradients in southern California with motion-activated cameras. More carnivore species were detected with cameras in orchards than in wildland sites, and for bobcats and gray foxes, orchards were associated with higher occupancy rates. Our results demonstrate that agricultural lands have potential to contribute to conservation by providing habitat or facilitating landscape connectivity.
广泛分布的物种不能仅靠保护区来维持。因此,人们对具有隔离或缓冲自然区域功能的农业用地的保护价值越来越感兴趣。农业用地对野生动物栖息地和连通性的价值随作物类型和景观背景的不同而变化,量化这些差异将提高我们有效管理这些土地以保护动物的能力。在南加州,许多物种存在于鳄梨果园中,包括哺乳动物食肉动物。我们使用运动激活相机,在南加州的农业-荒地梯度上检查了哺乳动物食肉动物对鳄梨果园的占有情况。在果园中用相机检测到的食肉动物种类比在荒地中多,对于山猫和灰狐来说,果园与更高的占有率有关。我们的研究结果表明,农业用地具有提供栖息地或促进景观连通性的潜力,从而为保护做出贡献。