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 18 of 18 for “"crossing structures"”.
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ACCEPTANCE OF WILDLIFE CROSSING STRUCTURES ON US HIGHWAY 93 MISSOULA, MONTANA
… collisions and to provide for safe crossing opportunities for wildlife. Wildlife-specific crossing structures are now increasingly considered in road construction. Reconstruction projects and a range of studies have reported on the effect of structural attributes on wildlife use to …
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ACCEPTANCE OF WILDLIFE CROSSING STRUCTURES ON US HIGHWAY 93 MISSOULA, MONTANA
… collisions and to provide for safe crossing opportunities for wildlife. Wildlife-specific crossing structures are now increasingly considered in road construction. Reconstruction projects and a range of studies have reported on the effect of structural attributes on wildlife use to …
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The effects of future extreme precipitation events on stream hydrology and hydraulics of stream crossing structures
… lands and other training features such as water crossings. If an increase in intensity and incidence of extreme precipitation events is realized, installations associated with river systems are likely to have increased flood risk and associated prevention and mitigation costs. Low water crossings …
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Effectiveness, cost, and implications of forest haul road stream crossing structures and best management practices in Virginia
Forest roads and stream crossings have the potential to be sources of sediment from forest operations. Recent litigation has renewed interest in furthering research related to forest road Best Management Practices (BMPs). Three legacy (100 year old) forest road stream crossings were monitored for …
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Are Highways Stressful for Pikas?: Analysis of Stress Hormones of the American Pika (<i>Ochotona princeps</i>) Living Adjacent to Interstate 90 in the Cascade Range of Washington State
… harming many wildlife populations. Wildlife crossing structures perforate the barrier-effect of roads, providing safe passage for species dispersing across roads, thereby reconnecting ecosystems. Some wildlife species live in modified habitats along roads and in habitat features within …
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Testing the forage preference of the American pika (Ochotona princeps) for use in connectivity corridors in the Washington Cascades
… Washington is to construct nearly 30 wildlife crossing structures along a 15-mile stretch of Interstate-90. American pikas (<em>Ochotona princeps</em>) are being monitored for the SPEP because they have specific habitat requirements and are poor dispersers. Making the crossing structures …
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Ecological and Genetic Connectivity of Shrews (Sorex spp.) across Interstate-90 in the Washington Cascade Range
… of Transportation is constructing wildlife crossing structures to increase ecosystem connectivity as part of this project. The goal of my study was to investigate shrews – very small mammals with presumably low mobility and dispersal capacity – at sites on the eastern slopes of the Cascade …
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Variations of Wildlife Safety Crossings and Their Effects for Mule Deer in Northeast Nevada
… accepted over the last several decades are safe crossing structures designed for wildlife in areas fragmented by roads (also known as safety crossings) (Corlatti et al. 2008; Puth & Wilson 2001; Taylor et al. 1993). The general function of a safety crossing is to provide safe passage for animals …
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RABBIT/RIDES: CONNECTING A CONTINENT BY BIKE
… provoke action for the creation of more crossing structures, and inspire others to take to the trail under their own human power and find connections in nature.
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RABBIT/RIDES: CONNECTING A CONTINENT BY BIKE
… provoke action for the creation of more crossing structures, and inspire others to take to the trail under their own human power and find connections in nature.
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Small mammal microhabitat use and species composition at a wildlife crossing structure compared with nearby forest
… as complete connectivity barriers. Wildlife crossing structures (WCS) can increase the permeability of roads, allowing animals to move safely between habitats. Small mammals are especially vulnerable to the effects of reduced connectivity because of their limited mobility; however, few …
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EFFECT OF COVER ON SMALL MAMMAL ABUNDANCE AND MOVEMENT THROUGH WILDLIFE UNDERPASSES
Crossing structures enable wildlife to safely cross highways by physically separating wildlife and vehicles. Most wildlife underpasses and overpasses are designed to accommodate a wide variety of species. Their suitability for individual species, however, varies by location (surrounding habitat), …
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EFFECT OF COVER ON SMALL MAMMAL ABUNDANCE AND MOVEMENT THROUGH WILDLIFE UNDERPASSES
Crossing structures enable wildlife to safely cross highways by physically separating wildlife and vehicles. Most wildlife underpasses and overpasses are designed to accommodate a wide variety of species. Their suitability for individual species, however, varies by location (surrounding habitat), …
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Occupancy of Stream-Associated Amphibians within the Interstate 90 Snoqualmie Pass Corridor
… also be related to site characteristics. Highway crossing risks and habitat isolation were mitigated for in recent construction of wildlife underpasses, where creeks cross Interstate 90 east of Snoqualmie Pass in Washington State. The effects of these restored underpasses on stream-associated …
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The Effects of Stream Crossings and Associated Road Approaches on Water Quality in the Virginia Piedmont
Stream crossings are an integral component of forest road systems that provide access for timber harvesting and silvicultural activities. Stream crossings and their associated approaches are often the most critical point of concern for water quality along forest roads. Several types of crossings …
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IDENTIFYING WILDLIFE CROSSING ZONES FOR THE PRIORITIZATION OF HIGHWAY MITIGATION MEASURES ALONG U.S. HIGHWAY 2: WEST GLACIER, MT TO MILEPOST 193
… trails was located from Milepost (MP) 181-184. Crossing zones were delineated based on a combination of the number of trails, previously identified wildlife crossings, camera incidents-per-day, potential parcels of land for conservation, and highway and railroad structures in a given area …
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IDENTIFYING WILDLIFE CROSSING ZONES FOR THE PRIORITIZATION OF HIGHWAY MITIGATION MEASURES ALONG U.S. HIGHWAY 2: WEST GLACIER, MT TO MILEPOST 193
… trails was located from Milepost (MP) 181-184. Crossing zones were delineated based on a combination of the number of trails, previously identified wildlife crossings, camera incidents-per-day, potential parcels of land for conservation, and highway and railroad structures in a given area …
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Distribution, population status and conservation of the samango monkey (Cercopithecus albogularis schwarzi) in the Limpopo Province, South Africa
… how experimental research prior to installing crossing structures could increase mitigation impact. In Chapter 5 we investigate the regional phylogeography of samango monkeys, providing a deeper understanding into their evolutionary history in repeatedly fragmented forest habitat due to …