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.
Results
Showing 1 to 20 of 23 for “"mammal populations"”.
-
Analysis of Small Mammal Populations in the Deciduous Forest Biome
Made available in DSpace on 2014-12-04T22:45:42Z (GMT). No. of bitstreams: 1 0001564.pdf: 8741442 bytes, checksum: bfa205df5e405f880029624d67f8349f (MD5) Previous issue date: 1949
-
Assessing conservation status of remnant mammal populations in a Neotropical cloud forest
… and yet threatened ecosystems. Terrestrial mammals play key roles delivering numerous ecosystem services within such systems including seed dispersal and nutrient cycling. Yet like the habitat in which they reside, some mammal species are also highly threatened; sensitive to deforestation …
-
Dynamic energy budgets and bioaccumulation : a model for marine mammals and marine mammal populations
… affects growth of organisms and, therefore, populations. Persistent lipophilic toxicants acquired with the energy can bioaccumulate and harm individuals. Marine mammals are particularly vulnerable because of their large energy requirements, and transfer of energy and toxicants from mothers to …
-
Effects of Prescribed Burns on Small Mammal Populations with Comments on Houston Toad Populations
… the park. For my study, I conducted a small mammal survey to determine mammal diversity and relative abundance data in burned and unburned management units. The objectives of the study involve comparing diversity and relative abundance of small mammal (indicator species) and herptile …
-
Dynamic energy budgets and bioaccumulation : a model for marine mammals and marine mammal populations
… affects growth of organisms and, therefore, populations. Persistent lipophilic toxicants acquired with the energy can bioaccumulate and harm individuals. Marine mammals are particularly vulnerable because of their large energy requirements, and transfer of energy and toxicants from mothers to …
-
Assessment of small mammal populations in two Southeastern forests of Big Ridge in Chattanooga, TN
… to test for effects of urbanization on small mammal abundance and diversity. Preliminary studies were preformed to test sampling techniques and acquire a sample size estimate for the primary study. Sampling sites were chosen in old growth and mixed hardwood forest areas. Six day sampling …
-
The spatial and temporal ecology of the large mammal populations and vegetation of Ngorongoro Crater, Tanzania
… Reserve and ishome to tens of thousands of large mammals. This study documents the historical ecology ofthe crater from 1892 to 2012 based on an analysis of the published literature and itinvestigates the potential effects of vegetation change on the dynamics of large mammalpopulations using …
-
Does variability matter? Major histocompatibility complex (MHC) variation and its associations to parasitism in natural small mammal populations
… defence, and parasite burden in different small mammal species. I assessed the importance of MHC variation for parasite burden in small mammal populations in their natural environment. To understand the processes shaping different patterns of MHC variation I focused on evidence of selection …
-
Breeding Bird and Small Mammal Populations in Relation to the Forest Vegetation of the Subarctic Region of Northern Manitoba
Made available in DSpace on 2014-12-04T22:46:14Z (GMT). No. of bitstreams: 1 6100126.pdf: 6358830 bytes, checksum: a65212ebde0a34eb5be978208ac1391b (MD5) Previous issue date: 1960
-
The effects of a silvicultural sludge application on small mammal populations and the potential of Giardia contamination in a forest ecosystem
… sludge application on resident small mammal populations were assessed by monitoring their demographic responses before and after sewage sludge treatment. Potential contamination of the forest ecosystem by Giardia duodenalis, a parasitic protozoan, was also investigated. Populations of …
-
Small mammal community structure (Rodentia: Muridae) in Punda Maria, Kruger National Park, South Africa : Causes and consequences
The population dynamics of small mammal populations in Punda Maria, Kruger National Park, South Africa was investigated with respect to community size and structure, seed predation and dispersal of several trees. Species populations, community structure and habitat attributes were measured at six …
-
Evaluating Campylobacter spp at the human-wildlife interface
… driving pathogen infection dynamics in wild mammal populations. In countries like Botswana, there is significant spatial overlap between humans and wildlife with a large proportion of the population vulnerable to Campylobacter infection, making Botswana an ideal location to study these …
-
Conserving dolphins and fishermen: Combining science and local knowledge to reduce cetacean bycatch
… It threatens the survival of many marine mammal populations globally, and it occurs in nearly every fishing gear type. Despite its widespread occurrence, observations of bycatch are rare, and scientific data on marine mammal bycatch are limited. Difficulties result in developing models …
-
First detection of otarine herpesvirus-1 in South America: Characterizing the epidemiology in a Peruvian pinniped population
… surveillance in vulnerable Peruvian marine mammal populations.
-
Small mammal demographics in North Dakota conservation reserve program plantings
… methods were used to de~ermine small mammal demographics and population dynamics in Conservation Reserve Program (CRP) plantings in north central North Dakota. Four age classes (1-4 years) of CRP plantings were sampled. Small mammal species diversity was low (H'=0.057-0.374). Eight …
-
Demography and population dynamics of the striped fieldmouse, Rhabdomys pumilio, in alien Acacia vegetation on the Cape Flats, Cape Province, South Africa
… of the fact that the long-term study of small mammal populations in southern Africa has been largely neglected, this project was an attempt to document more accurately than has hitherto been the case in Africa, the population changes in a small rodent, the striped fieldmouse, Rhabdomys pumilio, …
-
Factors Influencing Predation on Ruffed Grouse in the Appalachians
… where aspen (Populus tremuloides) is dominant. Populations in the central range of grouse distribution exhibit 10-year cyclic patterns of decline that have been associated with the invasions of boreal predators such as great horned owls and northern goshawks during crashes in small mammal …
-
The effect of habitat management on biodiversity and ecosystem functions in oil palm plantations in Sumatra, Indonesia
… on several key groups, including large mammals, rats, ants, and termites, and associated ecosystem functions. Large Mammals & Rats: Using camera traps to assess mammal populations we showed that Leopard cats, which are an important predator of pest rats, prefer plantations with more …
-
A non-linear spotlight line transect method for estimating white-tailed deer population densities
… white-tailed deer (Odocoileus virginianus) populations. Many state agencies rely upon density estimates obtained from spotlight strip transect surveys to regulate annual harvest Yet, density estimates from the standard spotlight strip transect method are known to be inaccurate in areas of …
-
Habitat selection of three rodents in a frequently burned boreal environment : productivity and habitat diversity
… in plant composition and productivity, and small mammal demography brought about by fire in the northern boreal environment at Chick Lake, N.W.T. (65053fN, 128°14,W). Two 5*6 ha plots measuring 375m x 150m were selected for study during the summers of 1973 and 197^. One had been unburned for 120 …
Page 1 of 2