首页> 外文学位 >Links among climate, soil moisture, and grasshopper populations in Alberta.
【24h】

Links among climate, soil moisture, and grasshopper populations in Alberta.

机译:艾伯塔省气候,土壤湿度和蝗虫种群之间的联系。

获取原文
获取原文并翻译 | 示例

摘要

This study examines regional relationships between climate, soil moisture, and grasshopper populations in Alberta. The objectives of this study are twofold: (a) to investigate soil moisture as a potential predictor of grasshopper populations; and (b) to determine whether or not relationships between grasshopper populations and weather and soil moisture exist at the regional scale. Simple correlations and a modified chi-squared procedure are employed to investigate these relationships. Fall and spring soil moisture conditions appear to have some predictive capacity, showing strong associations to grasshopper abundance. Furthermore, regional relationships between temperature and soil moisture and grasshopper populations are also identified. These relationships appear far stronger relative to low grasshopper populations, suggesting that population declines are easier to predict than outbreaks. Cool, wet weather in the spring and warm, dry weather in the fall and early winter are strongly associated with low populations.
机译:这项研究调查了艾伯塔省气候,土壤湿度和蝗虫种群之间的区域关系。这项研究的目标是双重的:(a)研究土壤水分作为蚱hopper种群的潜在预测因子; (b)确定区域范围内是否存在蝗虫种群与天气和土壤水分之间的关​​系。使用简单的相关性和改进的卡方程序来研究这些关系。秋季和春季土壤湿度条件似乎具有一定的预测能力,与蝗虫的丰度有很强的联系。此外,还确定了温度与土壤水分和蝗虫种群之间的区域关系。相对于蝗虫数量少的人,这些关系似乎要强得多,这表明人口下降比疾病暴发更容易预测。春季凉爽,潮湿的天气以及秋季和初冬的温暖,干燥的天气与人口稀少密切相关。

著录项

  • 作者

    Powell, Luke R.;

  • 作者单位

    University of Guelph (Canada).;

  • 授予单位 University of Guelph (Canada).;
  • 学科 Physical Geography.; Biology Entomology.; Biology Ecology.
  • 学位 M.Sc.
  • 年度 2005
  • 页码 123 p.
  • 总页数 123
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 自然地理学;昆虫学;生态学(生物生态学);
  • 关键词

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