首页> 外文OA文献 >Wetland Complexes and Upland-Wetland Linkages: Landscape Effects on the Distribution of Rare and Common Wetland Reptiles
【2h】

Wetland Complexes and Upland-Wetland Linkages: Landscape Effects on the Distribution of Rare and Common Wetland Reptiles

机译:湿地复合体与陆地 - 湿地联系:景观对稀有和常见湿地爬行动物分布的影响

摘要

We used landscape ecology concepts to test the importance of upland–wetland linkages on the distribution of two common wetland species, the northern watersnake Nerodia sipedon sipedon and midland painted turtle Chrysemys picta marginata, and two rare wetland species, the copper-bellied watersnake Nerodia erythrogaster neglecta and Blandingu27s turtle Emydoidea blandingii. We tested if connectivity (proximity to other wetlands), connectivity quality (wetland distance to roads and forest area within 30, 125, 250, 500 and 1000 m of the wetland), and patch size (wetland size and shoreline length) affected the distribution of these four species. Our results show that both common species were more likely to occur in larger, less isolated wetlands, but their distribution were not influenced by proximity to roads or the amount of adjacent forest area surrounding the wetland. Both rare species were more likely to occur in wetlands that were farther away from roads and that had more surrounding forest. Proximity to other wetlands was not a significant predictor of either rare speciesu27 distribution. Our results suggest that management practices should focus on protecting wetland complexes and maintaining upland–wetland linkages by improving landscape connectivity, increasing forest area surrounding wetlands and reducing road effects.
机译:我们使用景观生态学概念测试了旱地-湿地联系对两种常见湿地物种(北部水蛇Nerodia sipedon sipedon和中部彩绘龟Chrysemys picta marginata)以及两种稀有湿地物种铜腹水蛇Nerodia erythrogaster分布的重要性。 neglecta和Blanding龟Emydoidea blandingii。我们测试了连通性(与其他湿地的距离),连通性质量(湿地与湿地之间30、125、250、500和1000 m之内的道路和森林面积的距离)以及斑块大小(湿地大小和海岸线长度)是否影响了分布这四个物种中的一个。我们的研究结果表明,这两种常见物种更可能出现在较大的,较少人为的湿地中,但它们的分布不受道路附近或湿地周围邻近森林面积的影响。这两种稀有物种更可能发生在距离道路更远,周围森林更多的湿地中。靠近其他湿地并不是稀有物种分布的重要预测指标。我们的结果表明,管理实践应着重于保护湿地综合体,并通过改善景观连通性,增加湿地周围的森林面积并减少道路影响来保持旱地与湿地之间的联系。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号