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 25 for “"Seasonal activity"”.
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Seasonal activity patterns of bats in the Central Appalachians
… I sought to determine patterns and drivers of activity for hibernating bat species during autumn and spring around hibernacula. Similarly, I set out to determine patterns and drivers of activity for migratory bat species during autumn and spring along mountain ridgelines in the central …
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Habitat Use And Seasonal Activity Of Selected Snakes On John F. Kenned
… during every month of the year, but showed modal activity patterns typical of Temperate Zone snakes. Monthly snake captures were correlated with monthly captures of potential prey species and with mean monthly temperature. Species richness in the four habitat types varied from nine to 12. Drift …
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Changes in the seasonal activity of bats occuring in the Kunene region, Namibia: Influence of environmental factors
… how environmental conditions affect bat activity, number and distribution is important for assessing activity and abundance. Monthly bat activity and the effect of environmental factors (temperatures, moon phase) on bat activity were recorded to elucidate factors influencing the …
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Ovicidal activity of methomyl on eggs of pest and beneficial insects and mites associated with apples in Virginia
… Methomyl provided the best control. Seasonal activity of P. flavedana and P. idaeusalis were monitored in reference to degree-day accumulations. Regression equations for male moth flights and egg deposition of the species are presented. Seasonal activity and prospects for development …
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Natural History and Ecology of the Flatwoods Salamander, <em>Ambystoma cingulatum</em> on the Atlantic Coastal Plain
… rates, metamorph size and emergence, seasonal activity patterns, and conservation considerations. Factors influencing breeding migrations were analyzed Rainfall was the most significant factor affecting breeding migrations of <em>A. cingulatum</em> on the Atlantic Coastal Plain along …
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Wild Turkey Ecology in Two Intensively Farmed Landscapes in Central Illinois
Hens moved long distances between seasonal activity centers and annual range size averaged 712.4 ha. Fall/winter ranges averaged 701.4 ha (SE = 102.3, n = 71) and were larger and more variable than nesting season ranges which averaged 404.0 ha (SE = 36.7, n = 93). Upland forest was preferred during …
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The feeding ecology of curlew sandpipers Calidris ferrugineol in the South - Western Cape, South Africa
… for the period February 1974 - March 1975. Seasonal changes in the diet of curlew sandpipers foraging in the intertidal sandflats and marshes were studied, and the food taken by male and female, and immature and adult, birds was compared. The daily and seasonal activity of curlew sandpipers …
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Rate of Food Consumption of Acris Crepitans Blanchardi Harper in South-Central Iowa
… The relationship between food consumption and seasonal activity was not known for Acris crepitans blanchardi Harper, Blanchard's cricket frog, nor had the rate of food passage through the stomach of this species been calculated. This study determined these factors and calculated a yearly insect …
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An Ecological Study of the Black-Tailed Jack-Rabbit Lepus Californicus in Missouri
… plant collections and identification. Jackrabbit activity was monitored through direct observations, spotlighting, and with infrared-triggered camera units. Pasture fields were found to be the preferred habitat over hay and crop fields on the study site. A seasonal activity pattern was discovered …
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Development and evaluation of trapping studies for Hylobius pales (Herbst) and Pissodes nemorensis Germar (Coleoptera: curculionidae) in Virginia Christmas tree plantations
… than in herbicide treated plots. Feeding activity in mowed plots was intermediate. Trap catch did not correlate with seedling damage within or among sampling periods, or between years. The seasonal activity of both species is reviewed in detail. Mark-and-recapture techniques used to assess …
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Spatial Ecology and Conservation Strategies for the Endangered Northern Long-Eared Bat (<i>Myotis septentrionalis</i>) in a Post-White-Nose Syndrome Landscape
… related to habitat selection and suitability, seasonal activity, and large-scale estimates of continued occupancy across the post-WNS landscape. In this dissertation, I explored maternity colony home range size and habitat selection, both coastal and interior seasonal activity patterns, habitat …
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Determination of the possible role of arthropods as vectors for "Potomac Horse Fever" in equines
… vector has been suspected because of the seasonal epidemiology of the disease. This research was an attempt to identify and evaluate potential arthropod vectors. A seasonal activity study of biting arthropods attacking horses in endemic areas of Maryland and Virginia identified five …
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Aspects of the Niche of the Common Snapping Turtle, 'Chelydra Serpentina Serpentina', in Iowa
… and maturity, habitat preference, daily and seasonal activity cycles, response to a severe drought, population structure, home ranges, and homing ability. Procedure. Turtles collected statewide and preserved were used in growth maturity studies. A population of snapping turtles was monitored …
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Revealing the behavioural ecology of the elusive hairy-eared dwarf lemur (Allocebus trichotis)
… determine habitat use, social organisation and seasonal activity cycle. We conducted field work between January and December 2007 in the Analamazaotra Special Reserve, Andasibe, central eastern Madagascar. After capturing and measuring eleven individuals, we followed two males and two females …
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The role of red-backed salamanders in ecosystems
… insect damage. Since the timing of salamander activity could influence their role in ecosystem functions, I also examined the seasonal activity patterns of red-backed salamanders. I found that salamanders were most active in the spring and fall on warm, humid nights, following rain events. …
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Bionomics of Platynota flavedana Clemens and P. idaeusalis (Walker)(Lepidoptera: Tortricidae) in Virginia apple orchards
… have influenced fruit damage distribution. The seasonal activity of P. flavedana and P. idaeusalis was monitored. Degree-day accumulations for first moth catch, first and peak egg deposition, and first and peak egg hatch of both generations are presented.
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A Novel Road Grip Estimation Method Using a Vehicle as a Probe
… conducted with the common goal of making this seasonal activity more efficient and/or cost-effective. Although promising results have come from these prior research efforts, road condition is still a missing piece of information essential for winter road maintenance decision making. …
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The feeding ecology of curlew sandpipers "Calidris Ferruginea" in the South-Western Cape, South Africa
… for the period February 1974 - March 1975. Seasonal changes in the diet of curlew sandpipers foraging in the intertidal sandflats and marshes were studied, and the food taken by male and female, and immature and adult, birds was compared. The daily and seasonal activity of curlew sandpipers …
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Foraging ecology and sampling of Trissolcus japonicus (Ashmead) (Hymenoptera: Scelionidae) and its host Halyomorpha halys (Stal) (Hemiptera: Pentatomidae) in wild host trees
… but provided the first documentation of the seasonal activity of T. japonicus in the USA. A study of host plant effects on T. japonicus detection in mid-canopy yellow sticky traps did not reveal consistent host plant effects on captures. These data provide important insights into the foraging …
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