共查询到16条相似文献，搜索用时 203 毫秒
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应用地理信息系统（GIS）规划华南虎栖息地 总被引：7，自引：1，他引：6
应用SIS规划设计野生动物生境是一项新的技术.本文选择了三类影响因素,在福建省梅花山自然保护区地区对华南虎的生境适宜性进行了GIS分析,规划出最适宜生境,适宜生境,一般适宜生境和不适宜生境,并认为梅花山保护区的毗邻适宜生境应列入保护区加以保护 相似文献
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野生动物生境破碎化理论探讨 总被引：2，自引：0，他引：2
生境破碎化是指由于人类活动或自然因素引起生境变化的一个生态过程。生境破碎化是生态学和保护生物学中较新的理论,已成为保护生态学、景观生态学和保护生物学研究领域中备受关注的热点问题之一。本文介绍了生境破碎化的基本概念、主要特点,以及生境破碎化在种群、群落、生态系统和景观层次引起的生态效应,概括了生境破碎化在形式上和功能上的主要表现。同时综述了生境破碎化研究的起源、发展和在森林采伐、道路及边缘效应3个主要方面的研究进展,并着重探讨了生境破碎化：（1）对野牛动物生物多样性保护带来的生态效益;（2）对野生动物景观结构与格局的时空动态影响分析;（3）对野生动物产生的直接或潜在生态过程中的尺度性;（4）对野生动物遗传多样性产生的影响;（5）野生动物对生境破碎化的适应机制等研究发展方向和趋势。 相似文献
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野生动物的生境可能会在时间和空间上发生变化。在某一地区,各种生境所占比例的变化,可能引起该地区野生动物对整个生境适宜性的改变。因此,需要一个预测野生动物对生境变化所产生反应的生境关系模型(Verner et al, 1986)。本文根据野生动物短期的生境利用和野生动物管理中收集到的有关资料,提出了一种预测生境变化对野生动物影响的方法。生态学上关于生境选择理论是以种群密度大小表示生境质量好坏为前提的。故根据生境利用以及有关资料,便能直接地预测生境变化的结果。一、理论基础 Fretwell等人提出了局部资源的动物生境选择(包括行为、种群和生境)应满足下列6个假设: 1、动物自由地往返于喜爱生境之中。 2、动物喜欢选择的生境是具有最佳地区资源可利用性的生境。 相似文献
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野生动物是一种宝贵的自然资源，与人类生存和社会发展有着十分密切的关系。然而，随着人类活动不断深入到自然领域，对自然资源的开发力度不断加大。许多野生动物的生境遭到不同程度的破坏使得其种群数量呈下降趋势，有的甚至面临灭绝的危险。其中，土地的不合理开发和利用是野生动物生境遭到破坏的主要原因之一。 土地的开发利用对 野生动物生境的影响 随春现代科学技术的不断发展，人类对土地的开发力度不断憎大，然而由于土地开发的不科学和过于盲目，人们过度追求眼前的经济效益，结果破坏了野生动物的生境，造成了大量野生动物濒危和… 相似文献
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天然林资源有重要的生态效益,也是众多野生动物的生境。天然林保护与野生动物既相互促进又相互制约。不同的天然林保护方案对野生动物的影响不同,而野生动物对天然林保护有生态方面的作用和管理上的指导意义。天然林保护方案的制定要考虑野生动物的生境需求。 相似文献
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鹿类动物冬季环境容纳量估算方法评价 总被引：2，自引：0，他引：2
根据国内外鹿类动物环境容纳量研究现状，按确定容纳量的研究方法将其归纳为营养容纳量和空间容纳量两大类。这两类研究方法中，营养容纳量应用较早，是以目标种群生境所能提供的营养和野生动物本身的能量需求为估算基础，该方法受较多因素的影响，需进一步改进；空间容纳量是以野生动物总体生境格局和最小生存空间需求为依据，结合地理信息系统等现代技术及空间模型的模拟研究，可以更为客观地确定环境容纳量，将成为确定环境容纳量的主要研究手段和方法。 相似文献
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在分析研究国际野生动物栖息地分类体系,归纳总结我国野生动物栖息地分类方法基础上,结合我国实际情况及适应野生动物栖息地保护管理及科学研究需求,提出了陆生野生动物栖息地分类体系。该系统分为三级,包括一级12个栖息地类,二级66个栖息地型,三级218个基本类型。构建野生动物栖息地分类体系,能够更好地从多层次、空间立体格局上实施野生动物及栖息地保护、恢复和改善野生动物生存环境,维系野生动物种群健康发展。该体系建立与实施对国家生态安全维护,实现全国野生动物保护多层次化和多元化具有重要意义。 相似文献
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《Strength and Conditioning Journal》2014,67(1):99-106
Extensive research has been devoted to quantifying the habitat needs and selection of many wildlife species. However, how habitat selection affects the long-term demographic performance of a species largely has been ignored. We used northern bobwhite (Colinus virginianus) and brush canopy coverage—an important habitat component for quail—to evaluate the influence of habitat on short- and long-term demographic performance of this species. We used data from a 5-yr (2001–2005) radiotelemetry study of northern bobwhite in southern Texas to obtain estimates of bobwhite density, survival, and production on three study areas with 5%, 11%, and 32% brush canopy cover. Our objectives were to compare these demographic variables individually among brush canopy cover classes and then simulate their cumulative effect on demographic performance using a simulation model. All demographic parameters were similar among the three brush canopy cover classes. However, simulation modeling indicated that long-term demographic performance was greater on the 11% and 32% brush canopy cover classes. Simulated bobwhite populations were 2–3 times higher in these two cover classes than the 5% brush canopy cover class. In addition, the probability of population persistence was greater in the 11% (0.91) and 32% (1.00) brush canopy cover classes than the 5% cover class (0.54) using a quasi-extinction criterion of ≤ 40 birds (≤ 0.05 birds · ha-1). Our study highlights the shortcoming of considering only short-term effects when comparing habitat given that short- and long-term effects of habitat on demographic performance can differ. 相似文献
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Preferences for landscapes are critical because they can drive landscape changes over time. The mediating role of wildlife value orientations in influencing preferences for urban wetlands through the provision of ecological information (based on insectivorous bats) was experimentally tested. Residents (N = 198) were asked about their preferences for wetlands, as depicted in 27 photographs. Half of the participants were provided with ecological information. Urban wetlands of high habitat quality for bats were preferred by both groups. There was a significant influence of ecological information on preference, although unexpectedly, this was on wetlands of low quality habitat; people who received ecological information had lower preferences for wetlands that provided lower quality habitat for bats. This influence was mediated by wildlife value orientations (wildlife rights and recreational wildlife experiences). Results suggest that preferences for landscapes can be influenced by providing information that is consistent with value orientations. 相似文献
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Cody Cox Wayde Morse Christopher Anderson Luke Marzen 《Human Dimensions of Wildlife》2014,19(2):200-214
Wildlife management increasingly incorporates public participation to be more inclusive and reduce tensions between management and the general public in the decision-making process. There is also a need, however, to include spatial data since most wildlife biological and biophysical data are stored spatially in geographic information systems (GIS). This article presents a method for integrating this information using public participation geographic information systems (PPGIS). We asked stakeholders to identify specific places on a map that they would like to see maintained for the conservation of particular threatened species. This information is useful for identifying public wildlife management preferences and for allowing comparisons between public and expert opinions. We found high levels of public accuracy in identifying suitable habitat for threatened species conservation. We also identified places of potential conflict due to incompatible stakeholder preferences, but found little conflict between public conservation and development preferences. 相似文献
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Kurt T. Smith Jennifer S. Forbey Jeffrey L. Beck 《Strength and Conditioning Journal》2018,71(4):417-423
Wyoming big sagebrush (Artemisia tridentata Nutt. ssp. wyomingensis Beetle & Young) is the most abundant and widely distributed subspecies of big sagebrush and has been treated through chemical application, mechanical treatments, and prescribed burning in efforts thought to improve habitat conditions for species such as greater sage-grouse (Centrocercus urophasianus) and mule deer (Odocoileus hemionus). Although the response of structural attributes of sagebrush communities to treatments is well understood, there is a need to identify how treatments influence the quality of sagebrush as winter food for wildlife. Our purpose was to identify how mowing and tebuthiuron treatments influenced dietary quality of Wyoming big sagebrush in central Wyoming. Two study areas were mowed in January and February 2014, and tebuthiuron was applied in two study areas in May 2014. We constructed 6 exclosures in each of these four study areas (24 total), which encompassed 30 × 30 m areas of treated and untreated sagebrush within each exclosure. Samples of current annual growth were collected from 18 sagebrush plants from treated and 12 plants from control portions of mowing exclosures during November 2013–2015 and tebuthiuron exclosures during November 2014–2015. Samples were analyzed for crude protein and plant secondary metabolites known to influence dietary selection of sagebrush by sage-grouse and other sagebrush-occurring herbivores. Our results suggest mowing and tebuthiuron treatments may slightly increase crude protein concentrations directly after treatments without immediate changes in plant secondary metabolites. Slight increases in dietary quality of sagebrush following treatments coupled with potential trade-offs with loss of biomass associated with treatments corroborates previous research that treating Wyoming big sagebrush may have little benefit for sage-grouse and other sagebrush-dependent wildlife. Future work should evaluate not only how treatments influence sage-grouse habitat use and reproductive success but also how treatments influence other wildlife species in fragile sagebrush ecosystems. 相似文献