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 47 for “"migratory species"”.
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Premigratory movements of a long-distance migratory species: the Wood Thrush (Hylocichla mustelina)
The postbreeding period in migratory bird species is an important, but often neglected,area of knowledge. From May-October of 1993-95, I studied the breeding andpostbreeding ecology of 61 adults and postfledging movement of 43 juveniles in aradio-tagged population of Wood Thrushes (Hylocichla …
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Using environmental DNA metabarcoding to monitor fish biodiversity and assess anthropogenic barrier impacts on the river Mersey, UK
… (as revealed from the camera data). In total, 30 species were detected, including all main UK migratory species except for shad. Temporal variation was found in the detected communities, in line with expectations of different species’ migratory patterns. No correlation was found between barriers …
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Using Light-Level Geolocation to Investigate the Carry-Over Effects of Long-Distance Migration on the Reproductive Success of Dunlin (Calidris Alpina Hudsonia)
… carry-over effects are difficult to study in migratory species because of the geographical separation between breeding and non-breeding sites. I used light-level geolocation to examine, for the first time, how individual spring migration strategy affects reproductive success in a …
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Variability in Thule Inuit Subsistence Economy: A Faunal Analysis of OkRn-1, Banks Island, N.W.T.
… were exploited for their pelts. The presence of migratory species and the demographic profile of ringed seals suggest that the qarmaq was occupied in the late winter, spring, and fall. Comparisons between early and late Thule assemblages on Banks Island, and between OkRn-1 and contemporary sites, …
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Spatial and temporal distribution of larval fishes in a large tidal river.
… were attributable to anadromous and semi-migratory species. Seasonal differences were attributable to herrings, perches, and minnows. Both interannual and seasonal differences in assemblage composition may have been a result of changes in discharge. Spatial (i.e. longitudinal) variation of …
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The external microbiome of bats: Effects of season, site, host species, and body region
… the influence of season, geographic site, host species, and body region on the external microbiome of four cave-hibernating and two migratory species. Automated ribosomal intergenic spacer analysis was used to profile bacterial communities from three cutaneous regions of 222 bats across winter …
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Behavioral choices of male humpback whales (Megaptera novaeangliae) on the Hawaiʻian wintering grounds
Humpback whales (Megaptera novaeangliae) are a migratory species, feeding in high latitude, cooler waters during the summer, and then traveling to low latitude, warmer waters during the winter months to calve and presumably, though it has never been documented, to mate. The North Pacific has three …
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Physiological Plasticity and Ecology of the Yellow Mud Turtle (Kinosternon Flavescens) During Hibernation
… distributions of climate patterns. Non migratory species that hibernate during the winter months are particularly likely to experience reduced geographical. I assessed the degree to which hibernating yellow mud turtles (Kinosternon flavescens) were affected by warming winter …
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Biology of Albacore tuna (Thunnus alalunga, Bonnaterre 1788) off the South West Coast of South Africa
Albacore tuna (Thunnus alalunga) is a highly migratory species found in all of the worlds oceans. The origin of albacore south of Africa is in question. This species constituted 85% of catches of the South African commercial tuna fishing fleet from 2000-2009 and is an important species in …
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Effects of exotic invasive vegetation on breeding birds along the North Chickamauga Creek
… being highly invaded by exotic understory plant species, while the other two sites remain relatively free of such invasion. The primary attributes of avian community structure analyzed were diversity and density, both of which were relatively similar among all four sites, showing an overall …
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Habitat Relationships of Breeding Birds in Bottomland Hardwood Forests of the Altamaha River, Georgia
… forests provide habitat for at least seventy species of breeding birds. However, little is known about habitat associations of breeding birds, specifically within mature, closed-canopy bottomlands. It is often assumed that once bottomlands become mature, closed-canopy forests, that they are …
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Effects of climate and land management changes on conservation of Mediterranean Cork oak woodlands and their bird communities
… particularly for tree-dependent forest species. Farmland and shrubland birds respond mainly to habitat features modified by land management and their abundances increase in areas with open and heterogeneous ground cover. Current abandonment, intensification and overexploitation trends …
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Intestinal physiology in atlantic salmonpreparatory changes during smolting and after seawater entry
… This complexity is particularly pronounced in migratory species that experience variations in environmental salinity. Consequently, this thesis employed a multifactorial approach, considering biological and environmental factors that may contribute to the development of hypo-osmoregulatory …
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Bird's response to seasonality: investigating the range dynamics of birds through dynamic occupancy models
… fluctuations through migration. Among different migratory species and populations, there is varying sensitivity to different seasonal environmental cues, thus leading to different seasonal range dynamics and migration strategies. In this study, I used dynamic occupancy models on the South African …
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Photovoice as a technique to understand the perceptions of local people neighboring Tarangire National Park in Tanzania on the risks caused by migratory animals
… perception of risks to their livelihoods from migratory wildlife that transversed the national park. Three villages (Terrat, Narakauwo and Emboreet) were chosen based on their proximity to wildlife migration corridors and 12 participants from each village were asked to document their …
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Papel de las aves en la dispersión de garrapatas y microorganismos que vehiculan
… they can transport them during their movements, migratory or not. Data about microorganisms harboured by ticks from birds in Spain are scarce. This fact highlighted the necessity of investigating the role of these vertebrates in the epidemiology of arthropod-borne diseases. Thereby, several …
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Selection of Overwintering Microclimate by Migratory Western Monarch Butterflies
<p>Migratory species are expected to demonstrate habitat selection that occurs at multiple spatial and temporal scales. Western monarch butterflies migrate seasonally to overwinter in groves at geographically predictable locations along the California coast. To date, overwintering habitat selection …
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The Kavango-Zambezi Conservation Area (KAZA) and its dynamics in Zambia
… boundaries hamper the conservation objectives of migratory species. On the basis of the claimed potential of TFCAs to reconcile the conservation and economic development objectives of nations through tourism, TFCAs have been widely embraced in Southern Africa as a model for governing shared …
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HABITAT USE AND THE EFFECTS OF DISTURBANCE ON WINTERING BIRDS USING RIPARIAN HABITATS IN SONORA, MEXICO
… breeding bird communities and are highly used as migratory corridors; however, their importance for wintering birds has not been assessed systematically. In order to assess the value of riparian areas for birds wintering in Sonora, data from 1,816 standard point counts were collected from 87 …
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HABITAT USE AND THE EFFECTS OF DISTURBANCE ON WINTERING BIRDS USING RIPARIAN HABITATS IN SONORA, MEXICO
… breeding bird communities and are highly used as migratory corridors; however, their importance for wintering birds has not been assessed systematically. In order to assess the value of riparian areas for birds wintering in Sonora, data from 1,816 standard point counts were collected from 87 …
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