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 11 of 11 for “"trail cameras"”.
-
Urban wildlife species detection, species richness, and community shifts along a gradient of urbanization in an agriculturally embedded landscape using passive and active methods
… largely by monoculture annual crops. I deployed trail cameras and automated recording units to assess mammal and bird richness, respectively. Equipment was deployed for 30 d seasonally between October 2021 and May 2024. Bird species richness was highest (53 species) at low to intermediate levels …
-
Impact of Large Herbivore Use in Meadows on Lentic Function, Wetland Extent and Vegetation Hydric Status
… to consider opportunities for plant growth. Trail cameras were used to determine the relative amount of livestock and wild horse use at randomly chosen meadows likely to be high quality sage-grouse late-brood rearing habitat in each of nine allotments. Data collected using a modified draft …
-
Provisioning and Its Effects on the Social Interactions of Tibetan Macaques (<i>Macaca Thibetana</i>) at Mt. Huangshan, China
… were used for data recorded by camera traps. Trail-cameras were placed at six locations that contain natural and human food resources and recorded 60-second videos. Social behavior and proximity of the monkeys were recorded. I found that <em>M. thibetana</em> maintain closer proximity while in …
-
Effects of Stream Crossings on Macroinvertebrate Assemblages of the Upper Current River, Ozark National Scenic Riverways, Missouri
… sites. Using digital photographs from trail cameras, traffic frequencies were calculated and largely consisted of hikers and horses. Based on counts of 68,353 individuals from 111 macroinvertebrate taxa, I calculated four metrics (taxa richness, Shannon's index, EPT, biotic index) …
-
Fish and mammals of the lower Calaveras River, Stockton, CA
… plates, photography, and remote sensor infrared trail cameras. Native mammals included North American river otter (Lontra canadensis), striped skunk (Mephitis mephitis), raccoon (Procyon lotor), Botta's pocket gopher (Thomomys bottae), Califomia vole (Microtus californicus), California ground …
-
The effect of weather on sleep and the welfare of drills in captivity
… use. I recorded these behaviours at night using trail cameras and by direct observation during the day after, during 25 day/night focal and scan samples between December 2023-February 2024. Total night-time “sleep” was measured using and combining non-invasive observational methods to create an …
-
Towards a Temporal Theory of Ecology: Body Mass Role for Activity Patterns of North American Artiodactyls
Energy dynamics can shape ecological patterns and impact the evolutionary trajectory of a species. The metabolic theory of ecology links body mass to multiple ecological traits. This study seeks to extend these insights to activity patterns at a macroecological scale, using the large repository of …
-
Understanding the pattern, shifts and environmental impacts of dynamic plant communities in the Himalayan alpine zone (>4100 m.a.s.l.) under climate change
… field data from community-maintained trail cameras were used to monitor vegetation dynamics at two alpine villages, akin to a simple low-cost PhenoCam but using different spectral principles (Red, Green and Blue bands). The major results of the study were as follows: • A systematic …
-
Inference of River Hydrodynamics and Ice Processes from Close-Range Remote Sensing
… over four winters. By employing cost-effective trail cameras along the Dauphin River, a vast collection of oblique, shore-based, and low-quality image data were used to extract quantified river ice data. The comprehensive data and insights derived from this extensive database highlight the …
-
Behavior and Physiological Responses of Livestock Under Different Grazing Systems
… two consecutive days at every 3-week intervals. Trail cameras captured animal behavior. Blood was collected via jugular venipuncture. Hair grown during the trial was collected from the loin region. Blood and hair cortisol concentrations were determined by ELISA. Ewe ADG was greater in HSP …
-
Riistakameroiden käytön tuomat edut pienpetojen loukkupyynnissä Helsingin lintuvesillä
Helsingissä on kaksi linnustollisesti merkittävää kosteikkoaluetta; Vanhankaupunginlahden- ja Östersundomin lintuvedet. Molemmilla alueilla on sekä luonnonsuojelualueita, että Natura 2000 -suojelualueita ja runsaslajisen pesimälinnuston lisäksi niillä tavataan säännöllisesti myös harvinaisempia …