• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Ecological Modelling >Using a spatially explicit model to understand the impact of search rate and search distance on spatial heterogeneity within an herbivore grazing system
【24h】

Using a spatially explicit model to understand the impact of search rate and search distance on spatial heterogeneity within an herbivore grazing system

机译：使用空间显式模型来了解搜索率和搜索距离对草食动物放牧系统内空间异质性的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The importance of animal selection behaviour in determining spatial structure of grazing systems has implications for sustainable grazing management. Although changes in stocking density provide a mechanism for direct control of animal impact, grazing behaviour is also responsible for influencing vegetation dynamics. A spatially explicit grazing model was used to explore the impact of movement in search of higher intake (search rate) and search distance on spatial sward structure, specifically the distribution of sward surface height. The model simulated a two-stage grazing process in heterogeneous environments i.e. searching then biting. As search rate and search distance increased so the spatial variance of sward structure decreased. Changes in herbivore search rate have a greater impact on spatial variance of pastoral grazing systems than search distance. Herbivores foraging in heterogeneous environments with greater search rates may better utilise the available forage resources. Higher search rates in natural and agricultural systems may determine herbivore fitness and survival or production, respectively.
机译：动物选择行为在确定放牧系统空间结构中的重要性对可持续放牧管理具有重要意义。尽管种群密度的变化提供了直接控制动物影响的机制，但放牧行为也影响了植被的动态。使用空间显式放牧模型来探索运动对搜索较高进气量（搜索率）和搜索距离对空间草地结构的影响，尤其是草地表面高度的分布。该模型模拟了异构环境中的两阶段放牧过程，即搜索然后咬人。随着搜索速度和搜索距离的增加，草皮结构的空间差异减小。草食动物搜索率的变化对牧草系统空间变异的影响大于搜索距离。在异种环境中以较高搜索率觅食的草食动物可能会更好地利用可用的饲草资源。自然和农业系统中较高的搜索率可能分别决定草食动物的适应性和生存或生产。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

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