2 edition of relationship of parasite burden to population density of white-tailed deer (Odocoileus virginianus) on the Welder Wildlife Refuge found in the catalog.
relationship of parasite burden to population density of white-tailed deer (Odocoileus virginianus) on the Welder Wildlife Refuge
William Thomas Pedersen
Written in English
|Statement||by William Thomas Pedersen.|
|The Physical Object|
|Pagination||x, 105 leaves :|
|Number of Pages||105|
White-tailed deer (Odocoileus virginianus) have increased during the past century in the USA. Greater deer densities may reduce tree regeneration, leading to forests that are understocked, where growing space is not filled completely by trees. Despite deer pressure, a major transition in eastern forests has resulted in increased tree densities. To reconcile conflicting trends, we . The main objective of this study was to analyze the relationship between population densities of the white-tailed deer Odocoileus virginianus and certain habitat and human characteristics in the tropical dry forest of the Tehuacan-Cuicatlan Biosph ere Reserve (TCBR), Mexico. To estimate population density and characterize the habitat, we established 32 strip transects ( × 2 .
Concentrated food sources are used frequently in white‐tailed deer (Odocoileus virginianus) management and research, but because such food sources are easily defended, aggressive interactions among deer may influence their objectives of this study were to determine if deer population density or season affect 1) the order or degree of social . In August , a study on parasites, diseases, and health status was conducted on sympatric populations of fallow deer (Dama dama) and white-tailed deer (Odocoileus virginianus) from Land Between The Lakes, Lyon and Trigg counties, adult deer .
Deer hunting is also an important economic driver in Missouri and gives a $1 billion annual boost to the state and local economies. How CWD Spreads. CWD is spread from deer to deer through direct contact and through contact with soil, food, and water that have been contaminated through feces, urine, saliva, or carcasses of infected deer. The authors also examined the relationship between deer population density and human Lyme incidence rate. They analyzed data from Connecticut's Department of Environmental Protection and the Department of Public Health from through by deer .
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Host population density driving tick parasitism in red deer Density of hosts was selected in the independent models for each sex as related to tick burden, probably due to the fact that host densities regulate the percentage of adult ticks in the population that find a host and reproduce, thus contributing to densities of host-seeking ticks Cited by: The habitat-population density relationship in the white-tailed deer Odocoileus virginianus was analyzed in a tropical dry forest of the Zicuirán-Infiernillo Biosphere Reserve in the Pacific.
In addition, there is an expectation that the intensity of infection increases with increasing host density, and therefore, a positive relationship should exist between parasite.
Regulation of ungulate populations by parasites relies on establishing a density-dependent relationship between infection and vital demographic rates which may act through the effect of parasites on body condition.
We examine evidence for parasite impacts in red deer (Cervus elaphus) harvestedCited by: White-tailed deer are herbivores, leisurely grazing on most available plant foods. Their stomachs allow them to digest a varied diet, including leaves, twigs, fruits and nuts, grass, corn, alfalfa.
Chronic wasting disease (CWD) is a transmissible spongiform encephalopathy (TSE) affecting are a family of diseases thought to be caused by misfolded proteins called prions and includes similar diseases such as BSE (mad cow disease) in cattle, Creutzfeldt-Jakob disease (CJD) in humans and scrapie in sheep.
In the US, CWD affects mule deer, white-tailed deer, red deer, sika deer. Internal and external parasite populations are a common part of the normal biology of most animals. Studies have shown that at least species of parasites have been identified that infect deer of the genus Odocoileus.
Studies undertaken by the O.S.U. College of veterinary Medicine and the Oklahoma Department of Wildlife Conservation have identified over 21 internal and 7 external parasites.
This parasite is a protozoa (single-celled animal) that has a two-stage life cycle involving deer and their predators. Deer consume the protozoa accidentally when eating or drinking.
The parasite migrates to muscles, where it develops and forms visible cysts (seen in this photo of deer hindquarter muscles). Results. Deer ked infestation prevalence was %, but infestation intensity varied from to keds/cm intensity was highest in male yearlings (~ years) and positively associated with longitude and Scots pine (Pinus sylvestris) dominated habitat and negatively associated with bogs and population density during autumn.
Introduction. The white-tailed deer Odocoileus virginianus is the most important game species in Mexico (Ortega-Santos et al. ).This deer species can be found in different habitats including dry tropical forests, temperate forests, and xeric shrubland, among others (Gallina et al.
).In addition, this species persists in farming and ranching areas interspersed with patches of the. the carrying capacity of the environment for white-tailed deer will be reduced B.
a volcanic eruption will have a greater proportional effect than it would on a smaller population C. the effect of limiting resources will decrease D. the number of gray wolves, a natural predator of white-tailed deer, will increase. To test this hypothesis, we conducted a meta-analysis of female dispersal rates from 12 populations of white-tailed deer and predicted dispersal rate and distance were positively related to deer density.
We found a positive relationship between dispersal rate and deer per forested km2 and between dispersal distance and deer per forested km2. The United States White-tailed deer population is estimated to be o, individuals, of which a third will be in the State of Texas. The estimated population in Canada is a half a million individuals.
Overall, whitetails’ numbers are stable currently and they are classified as least concern (LC) on the list of Threatened species. An analogous equation for macroparasites is: a D=-M r where M is the mean parasite burden in the population, and a is the increase in host death rate per parasite.
nicity a can be approximately estimated as the inverse of the lifeexpectancy of an infected host for microparasites, and as the gradient of the relationship between parasite burden.
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White-tailed deer are polygamous breeders: one male mates with several females during a breeding season. Breeding occurs during the fall and winter, but may extend from late August through January. Peak breeding usually occurs in November. The gestation period for white-tailed deer is slightly less than 7 months or between and days.
occur in fawns in high deer density areas. The presence of this parasite provides additional motivation for maintaining deer population densities below an area’s biological carrying capacity.
Lungworms pose no health threat to humans, and the venison of infected deer is safe for consumption. Arthropods Ticks About 18 tick species have been. Moose population density tended to be positively correlated with ked intensity (Table 2).Our model predicted about 9% increase in ked intensity ( to keds/cm 2) in male yearlings if moose density increased with units from average ( to “moose seen per hunter day”, which is in the upper quartile of moose density).
Ked intensity tended. The second model indicates that a higher percent understory cover and a lower basal area of the tree stratum predict a higher white-tailed deer density in the study area (Figure 4). DISCUSSION. The white-tailed deer was recorded in 98 % of the transects sampled, with an estimated mean density of 4 ind/km 2 for the whole area.
We investigated the population density and activity pattern of white-tailed deer in the Sierra Nanchititla, Mexico, using 10 camera traps. Sampling was conducted over 18 months between and We identified deer in photographs, and the population abundance was estimated using the CAPTURE program and density by dividing the estimated.
These results were the foundation for Pennsylvania deer management objectives prior to Those deer density objectives were deer per square mile for seedling/sapling stands, deer per square mile for poletimber stands, and 20 deer per square mile for sawtimber stands.
Thirteen red deer (Cervus elaphus), culled from the isolated population at the Mongstad Oil Refinery, Norway, were investigated for gastrointestinal helminths. These animals, enclosed by the refinery fence, do not have contact with other ruminants and have a high population density considering the available browsing area (1 km2) within the refinery site (3 km2).
The population. Karns, G.R. and S.S. Ditchkoff. “Antler Breakage Patterns in White-tailed Deer.” The Proceedings of the Southeastern Association of Fish and Wildlife Agencies Karns G.R.
and S.S. Ditchkoff. “Trauma-induced Malformed Antler Development in Male White-tailed Deer.” 37(4)