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Showing 1 to 20 of 266 for “"Habitat selection"”.
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Habitat Selection by Yellow -Headed Blackbirds
… birds select breeding sites. I investigated habitat selection at various spatial scales in a neotropical migrant, the Yellow-headed Blackbirds (Xanthocephalus xanthocephalus). This research was conducted in two declining populations in northeastern Illinois. I found that at the largest …
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Habitat selection in the yellow-breasted chat
… surrounding them contained better quality habitat. Chats appear to choose their habitat on the basis of the total brushiness present. of several different components. This value may result from the summation In this study, bramble (<i>Rubus</i> spp.) cover and total shrub cover were the two …
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Habitat Selection By Size Classes of Largemouth Bass
Habitat selection and intraspecific competition for habitats by size classes of largemouth bass (Micropterus salmoides) was studied in a manipulative experiment and with a radio-telemetry field study. Largemouth bass ("small" and "large") were studied in artificial pools with three equal-area …
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Habitat Selection by weaver Birds in the Middle Zambezi Valley
… to their spatial distribution in the area, habitat factors and food habits. The aim was to find out what influences their selection of particular habitats. A sample of 76 nesting colonies of the different weavers were described. 14 habitat and nesting colony features were measured and were …
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Habitat Selection by weaver Birds in the Middle Zambezi Valley
… to their spatial distribution in the area, habitat factors and food habits. The aim was to find out what influences their selection of particular habitats. A sample of 76 nesting colonies of the different weavers were described. 14 habitat and nesting colony features were measured and were …
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Habitat Selection and Resource Use by Bighorn Sheep Following Translocation
… extirpations resulting from novel diseases, habitat fragmentation, and overharvest leading up to the 20th century, numerous conservation measures were implemented by Federal and State governments to restore struggling populations of wild sheep, elk, deer, goats, and other wildlife. One of the …
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Habitat selection and nesting ecology of translocated Greater Sage-grouse
… in North America. The cumulative effects of habitat loss, fragmentation and degradation of the sagebrush ecosystem threaten the persistence of the Greater Sage-grouse. Sage-grouse depend on healthy, intact areas of sagebrush habitat throughout the year. In Alberta, the sage-grouse population …
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Space Use And Habitat Selection By Bobcats In Southeastern Kentucky
… five (4F, 1M) bobcats and assessed space and habitat use patterns. Mean annual minimum convex polygon (MCP) home range size for all bobcats was 14.7 km2 (n = 5, SE = 3.9 km2), and 22.2 km2 (n = 5, SE = 7.5 km2) using the adaptive kernel (AK) method. Mean female annual home range size was 17.4 …
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Songbird community ecology and habitat selection in the Chicago area
… impact wildlife communities in urban areas are habitat loss and fragmentation, which expose organisms in remnants to increased stressors associated with edges. Another potential stressor is the encroachment of invasive vegetation. Invasive plants are highly successful colonizers of natural …
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Habitat selection and spatial personalities of Belizean white-tailed deer
… individual variation in movement behavior (e.g., habitat selection) – referred to as spatial personality – may have important ramifications for determining population size and structure yet remains understudied in the field of wildlife ecology and conservation despite being embraced by ethologists …
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Factors affecting distribution and habitat selection of water shrews Neomys fodiens
… is one of Britain’s least known mammals and its habitat requirements are poorly understood. The purpose of this study was to determine occurrence and associated habitat preferences of water shrews, a species of conservation concern, by comparing populations in central England freshwater habitats. …
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Seasonal Movements and Habitat Selection of Pheasant Cocks in South Dakota
Data were gathered on seasonal movements and habitat selection of 30 pheasant (Phasianus colchicus) cocks that were radio-equipped in eastern South Dakota from 1970 to 1972. Pheasant cocks stayed in an area of less than 100 acres from spring through hunting season. In winter, cocks used even …
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Influencing habitat selection and use through conspecific attraction and supplementary feeding
… of several native plants in New Zealand. Habitat fragmentation and geographical constraints prevent bellbirds from re-occupying formerly inhabited areas. After translocations birds often disperse; some just disappear, some are thought to fly back to their source site and probably many die. …
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Habitat selection by the elegant trogon (Trogon elegans) at multiple scales.
… (Trogon elegans). In Chapter 1, I assessed habitat selection by the trogon from 1993 to 1995 at three spatial scales (those of the mountain and canyon, home range, and microsite scales). At the broadest (inter-mountain and inter-canyon) scale, trogons were positively associated with cover by …
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Nest predation and habitat selection in the grasshopper sparrow (Ammodramus savannarum)
… many birds and is an important source of natural selection that shapes avian behavior and life-history traits. However, our understanding of the relationship between habitat characteristics and nest loss and how predation affects nest-site selection is limited. Predators are not often identified, …
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Habitat Selection and Movement of Pallid Sturgeon in Lake Sharpe, South Dakota
<p>Telemetry studies were conducted to determine habitat selection and movement of pallid sturgeon, Scaphirhynchus albus, in Lake Sharpe, South Dakota, a Missouri River reservoir. Seven pallid sturgeon, (three < 5 kg and four 5 kg) were implanted with sonic tags and followed between June 1989 and …
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Sharp-Tailed Grouse (Tympanuchus phasianellus) Habitat Selection and Population Trends in Saskatchewan
… populations has been variously attributed to habitat loss, degradation, and fragmentation, the major factors affecting population trends remain to be definitively identified. Two areas of importance for research were highlighted by provincial government scientists to inform long-term …
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Territoriality and habitat selection of feral pigs on Fort Benning, Georgia, USA
… that territoriality was a key factor influencing habitat selection of feral pigs. I used Global Positioning System (GPS) location data from 24 individuals representing 18 sounders combined with mark-recapture and camera trap data to evaluate evidence of territorial behavior at the individual and …
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Hierarchical summer habitat selection by the North American porcupine in western Montana
… been done on porcupines in western Montana or habitats of similar composition. More recently it has been noted that porcupine sightings have become rare in western Montana is areas where sightings were once common. Due to the overall lack of information about western porcupine populations it is …
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Territoriality and habitat selection of feral pigs on Fort Benning, Georgia, USA
… that territoriality was a key factor influencing habitat selection of feral pigs. I used Global Positioning System (GPS) location data from 24 individuals representing 18 sounders combined with mark-recapture and camera trap data to evaluate evidence of territorial behavior at the individual and …
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