Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 61 for “"spatial ecology"”.
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Spatial Ecology of Entomopathogenic Nematodes with Contrasting Foraging Strategies
Laboratory studies have identified a dichotomy in foraging behavior of entomopathogenic nematodes (EPNs) but little is known about their dispersal patterns in the field. Overall goal of this dissertation research was to examine the dispersal behavior of two EPN species with contrasting foraging …
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Spatial ecology of grey squirrels (Sciurus carolinensis) in an urban environment
… gaps in<br/>knowledge of urban grey squirrel spatial ecology, as highlighted by a<br/>systematic literature review, with no previous studies estimating home ranges<br/>in residential areas or quantifying space use and habitat preference at the<br/>individual level. This thesis aims to address …
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Spatial Ecology of the Desert Tortoise: Sampling Frequency and Biological Influences
<p>Understanding the spatial ecology of an animal is crucial for making positive efforts to provide for its recovery. As a part of this understanding, home range estimates are used to answer a variety of questions in ecological studies. However, home range estimates based on a collection of …
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The Spatial Ecology of Wild Pigs (Sus scrofa) in Southwest Florida
… limited empirical evidence is available on the ecology of wild pigs in Southwest Florida. Therefore, I examined how wild pigs behaviorally modified their movements and diel activity patterns in response to individual and environmental covariates. I investigated space use dynamics (e.g., home …
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Habitat Choice and Spatial Ecology of Nerodia Sipedon, the Northern Water Snake
… study utilized radio telemetry to examine the spatial ecology and habitat choice of Nerodia sipedon in a lentic ecosystem in southwestern Missouri. In late spring of 1998, radio transmitters were implanted into 18 adults, which were located daily. Home range areas and shifts in activity centers …
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Spatial ecology of Western Ratsnakes (Pantherophis obsoletus) : implications for bird nest predation
… remote temperature sensors and high-resolution spatial data to develop a dynamic temperature surface for our study area. Models predicted near-surface air temperatures with high accuracy during the winter and growing season, and permitted us to include thermal conditions in resource selection …
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Spatial ecology of adult spotted seatrout, Cynoscion nebulosus, in Louisiana coastal waters
… recreational and economic importance. Still, the spatial ecology of this species is under-studied and poorly resolved, especially in Louisiana waters. To address this important knowledge gap, I examined the movements, distribution, and habitat use of adult spotted seatrout in coastal Louisiana …
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Spatial ecology informs reintroduction tactics for warabin (Burhinus grallarius;bush stone-curlew)
Reintroduction is an important conservation intervention used to restore species and their ecological functions within their former range. Reintroduction success relies on the appropriate selection of tactics and strategies tailored to the species and recipient ecosystem; however, sufficient …
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Spatial ecology informs reintroduction tactics for warabin (Burhinus grallarius;bush stone-curlew)
Reintroduction is an important conservation intervention used to restore species and their ecological functions within their former range. Reintroduction success relies on the appropriate selection of tactics and strategies tailored to the species and recipient ecosystem; however, sufficient …
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Spatial ecology and demography of eastern coyotes (Canis latrans) in western Virginia
… Appalachian Mountains has stimulated interest in ecology of this predator and potential impacts to prey populations. This is particularly true in the Ridge and Valley Region in western Virginia where white-tailed deer (Odocoileus virginianus) populations are restricted by low nutritional carrying …
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Spatial Ecology of Bobcats (Lynx rufus) in the Appalachian Mountains of Western Virginia
… there is a paucity of information on their spatial ecology in this region. Due to the unique ecological conditions of Appalachia, and increasing public interest surrounding the role of bobcats as predators in the region, there is a need for local information on bobcat ecology. I utilized …
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Spatial Ecology of the Spotted Salamander <em>Ambystoma maculatum</em> During the Nonbreeding Season.
… surrounding breeding ponds. Their terrestrial ecology remains poorly understood. Few studies have tracked the movement patterns of Spotted Salamanders, and they have given limited information on fine scale patterns. Studies of distribution around vernal pool environments have brought increased …
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Species Composition and Spatial Ecology of Amazonian Understory Mixed-Species Flocks in a Fragmented Landscape
… In this research, I assess how flock spatial behavior and species compositions are affected by changes in habitat structure. I followed 29 mixed-species flocks in different landscapes types such as secondary forests, forest fragments of 10 and 100 ha, and mixes of primary and secondary …
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The spatial ecology and conservation of an important game bird in Ireland: the Eurasian woodcock
… how hunting activity affects its population or ecology. To address these knowledge gaps, this research had four main objectives: i. Establish an understanding of the current distribution and abundance of breeding woodcock in Ireland, and the environmental drivers that influence these, through a …
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Spatial ecology of the smooth softshell turtle (Apalone mutica) in the Kaskaskia River of Illinois
… rates, home range size, and habitat preference. Spatial ecological information is lacking for many river turtles including the Smooth Softshell Turtle (Apalone mutica), a species inhabiting the Midwestern United States. I investigated the spatial ecology of A. mutica in two reaches of the …
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The spatial ecology and behaviour of the broadnose sevengill shark (Notorynchus cepedianus) in South Africa
… can be used in stock assessments and to guide spatial management for this species. Within False Bay, most female N. cepedianus showed high site fidelity to Miller's Point, a large, well-known aggregation site for this species, and were observed returning for up to four consecutive years after …
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Population Dynamics and Spatial Ecology of White-tailed Deer in the Central Appalachian Mountains of Virginia
… and provides novel insights into fine-scale spatial ecology of female deer across biological seasons within the region. Ultimately, while the deer population in our study was not predicted to be in decline, this work supports predation risk as being a significant factor associated with …
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Spatial Ecology and Remote Sensing in the Precision Management of Tetranychus urticae (Acari: Tetranychidae)in Peanut
… management approach are that maps of the spatial distribution of TSSM populations can be developed and the pattern of distribution changes little over time to allow management strategies to be implemented. To this end, a study of four commercial peanut fields located in two counties of …
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Spatial Ecology and Movement Patterns of Black Drum (Pogonias cromis) and Sheepshead (Archosargus probatocephalus) in Mississippi Sound
… Despite their value, little is known about their spatial ecology, including patterns of residency, movement, and connectivity within northern Gulf estuarine systems. This study is the first to quantity subsystem-level use of these species in Mississippi Sound and assess the extent of individual …
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Effects of Testosterone on the Spatial Ecology, Coloration, and Brain Regions in Western Fence Lizards, Sceloporus occidentalis
<p>An organism’s spatial ecology allows for access to essential resources such as food, mates, and escape from predators. Home range size, or the total area an organism inhabits, varies in relation to numerous factors including seasonality. During the breeding season, home range size increases in …
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