检索结果-南通市图书馆

Adult bobcat(Lynx rufus)habitat selection in a longleaf pine savanna

Ecological Processes 2018年第1期7卷 206-217页

作者： Andrew R.Little L.Mike Conner Michael J.Chamberlain Nathan P.Nibbelink Robert J.Warren Warnell School of Forestry and Natural Resources University of Georgia180 E.Green StAthensGA 30602USA Joseph W.Jones Ecological Research Center at Ichauway NewtonGeorgia 39870USA

Background:Pine savannas are primarily managed with frequent prescribed fire(≤3 years)to promote diversity of flora and fauna,and to maintain open,park-like conditions needed by species such as the endangered red-cockaded woodpecker(Picoides borealis).However,a knowledge gap exists in our understanding of bobcat(Lynx rufus)habitat selection in longleaf pine savannas and research is warranted to direct our future management ***:We examined bobcat habitat selection in a pine savanna managed with frequent fires at two spatial scales(i.e.,study area boundary[hereafter,landscape scale])and annual area of use[95%kernel density;local scale],and assessed effects of prescribed fire on bobcat habitat ***,we monitored 45 bobcats(16 males and 29 females)during 2001–***:We found differential habitat selection by *** the landscape scale,female bobcats were closer to mixed pine-hardwoods,young pine,and secondary roads,but farther from mature pine and hardwoods stands relative to *** found no difference in selection of agriculture,shrub-scrub,and primary roads between *** the annual area of use scale,female bobcats were closer to secondary roads,but farther from agriculture and shrub-scrub relative to *** found no difference in selection of mature pine,mixed pine-hardwoods,hardwoods,young pine,and primary roads between *** primarily selected for stands burned≤1.1 years ***:Our results show that bobcats exploit a broad range of habitat types in pine landscapes managed with frequent fire and commonly use recently burned stands(≤1.1 year post-fire),suggesting prey in many areas of this system are at risk of bobcat ***,we suggest land managers consider scale of selection by bobcats when developing habitat management strategies.

关键词： Georgia Habitat selection Lynx rufus pinus palustris Prescribed fire

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Eastern wild turkey nest site selection in two frequently burned pine savannas

引用

Ecological Processes 2016年第1期5卷 38-47页

作者： Andrew R.Little Nathan P.Nibbelink Michael J.Chamberlain LMike Conner Robert J.Warren Warnell School of Forestry and Natural Resources University of Georgia180 E.Green St.AthensGA 30602USA Joseph W.Jones Ecological Research Center at Ichauway NewtonGeorgia 39870USA

Introduction:Reproductive success is a critical factor affecting avian demographics and can be influenced by many factors including nesting chronology,predation risk,and fine-scale nest site ***:We modeled the relative influences of habitat-related covariates at six spatial scales(nest site:15-,40-,80-,120-,160-,and 200-m radii)on Eastern wild turkey(Meleagris gallopavo silvestris)nest site selection in two pine savannas managed by frequent prescribed fire(≤3 years)in southwestern Georgia during ***:Nest site(15-m scale)habitat metrics(mean visual obstruction[cm]and canopy closure[%])had the greatest influence on nest site selection relative to covariates measured at larger spatial *** odds ratios suggested that nests were 26.8% more likely to occur for every 10 cm increase in mean vegetation height with a range of 7.5 to 150.0 cm and 18.5% less likely to occur for every 10% increase in canopy closure with a range from 0.0 to 97.8%.Total ground cover,canopy closure,edge density,and percent land cover type(e.g.,mature pine,mixed pine/hardwood,shrub/scrub)had minimal influence on nest site ***:Management of pine savannas for turkey nest sites should focus on creating early-successional vegetation to conceal nests from potential ***,we suggest that future studies consider evaluating the influence of spatial scale on turkey nest site selection.

关键词： Georgia Land cover Meleagris gallopavo silvestris Multi-scale Nest site selection pinus palustris Radio-telemetry

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Life cycle and masting of a recovering keystone indicator species under climate fluctuation

引用

Ecosystem Health and Sustainability 2016年第6期2卷 16-27页

作者： Qinfeng Guo Stanley J.Zarnoch Xiongwen Chen Dale G.Brockway USDA FS Eastern Forest Environmental Threat Assessment Center 3041 Cornwallis Road Research Triangle ParkNorth Carolina 27709 USA USDA Forest Service Southern Research StationClemson UniversityLehotsky HallClemsonSouth Carolina 29634 USA Department of Biological and Environmental Sciences Alabama A&M UniversityP.O.Box 1927NormalAlabama 35762 USA USDA Forest Service Southern Research Station521 Devall DriveAuburnAlabama 36849 USA

Ecosystem health and sustainability,to a large degree,depend on the performance of keystone or dominant *** role of climate on population dynamics of such species has been extensively examined,especially for health indicator *** the life-cycle processes and response lags for many species could complicate efforts to detect clear climate *** pine(pinus palustris Mill.)is such a keystone tree species in the southeastern United States that has declined in both abundance and distribu-tion during the past *** research efforts on multiple fronts,the mechanisms behind the large spatial and temporal fluctuations in cone production that affects its regeneration are largely *** the basis of long-term(15-56 yr)monitoring data at 10 sites across the species’native range,we examine the spatial and temporal patterns in cone production and possible climatic effects on those patterns using the information-theoretic *** production exhibited great variation across sites and years,and long-term data revealed a weak,ca.3 yr cycle(4 in one case)across the native *** effects of climate were rather complex,most likely due to a mismatch between the prolonged cone-production life cycle process and climatic ***,sites close to each other generally showed similar physical conditions and temporal trends in cone *** sites within longleaf pine’s range,moderate climate conditions appear to promote cone *** most sites,there was an increasing trend in cone production,but how such a trend might be linked to climate change requires further investigation.

关键词： idiosyncrasy life history Moran effect pinus palustris regeneration sustainability synchrony time lag wavelet analysis

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：