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 22 for “"bird surveys"”.
-
Improving the efficiency and accuracy of nocturnal bird Surveys through equipment selection and partial automation
Birds are a key environmental asset and this is recognised through comprehensive legislation and policy ensuring their protection and conservation. Many species are active at night and surveys are required to understand the implications of proposed developments such as towers and reduce possible …
-
Validating A Kentucky Wetland Rapid Assessment Method For Forested Riverine Wetlands Using Vegetation, Bird Surveys, And Landscape Analysis
… a vegetation index of biotic integrity (VIBI), bird surveys, and landscape development index (LDI). Specific objectives of this study were to: 1) determine the correlation between bird species richness, VIBI, and LDI with the KY-WRAM in forested riverine wetlands; and 2) determine which …
-
The influence of woodlot size and location in suburban and rural matrices on bird species richness and individual abundance
… of woodlot area and matrix composition on bird species richness and individual abundance. Bird surveys were conducted in winter 2004 and 2005 and spring 2005. Woodlot area and landscape composition were analyzed using GIS software. In winter, resident species richness and abundance …
-
Development of a Geographic Information System as an Analysis Tool for Management of Black-capped Vireo on the Kerr Wildlife Management Area, Kerr County, Texas
… Vireo GIS incorporates Blackcapped Vireo surveys, breeding bird surveys, black and white aerial photographs, digital orthophoto color infrared aerial photography, vegetation, topography, soils, incidence of parasitism, prescribed burning and wildfire, water sources, roads, and pastures on …
-
Bird use of avocado farms and intact forest in the Dominican Republic
… conservation priority area due to high rates of bird endemism and overwintering Neotropical migrant habitats, is seeing an increase of avocado farms and a subsequent forest loss. We conducted point-count bird surveys to determine how avian species richness and diversity differ between avocado …
-
A wetland vulnerability assessment : consequences for the avian communities of saltmarshes
… interventions were monitored using the Common Bird Census technique between March and July 2015 - 2018, Wetland Bird Survey counts, and wintering bird surveys. These habitat management interventions were associated with increased diversity of wetland species (both feeding and breeding) and …
-
Influence of Habitat Characteristics on Wetland Bird Abundance and Species Richness at Ordway Prairie, South Dakota
… abundance and species richness of wetland birds. Four bird surveys were conducted annually from mid-May through mid-August. Fourteen habitat variables were used to describe five wetland characteristics including wetland classification, emergent cover, submergent vegetation, shoreline, and …
-
Effects of Grazing on Nongame Breeding brids, Insects, and Vegetation in Conservation Reserve Program Grasslands in North Dakota
… effects of various land use practices on nongame birds, insect biomass, and vegetation structure in Conservation Reserve Program (CRP) grasslands in North Dakota. Breeding bird surveys were conducted and insect collections and vegetation measurements were taken in 3 of the 4 CRP tracks that were …
-
Investigating the decline of the Martial Eagle (Polemaetus bellicosus) in South Africa
… Africa, using data from two repeated national bird surveys - South African Bird Atlas Projects (SABAP 1: 1987-1993; SABAP 2: 2007-2012). These analyses suggest a relatively uniform decline across South Africa in Martial Eagle reporting rates of 59% over the last 20 years. Alarmingly, these …
-
Grassland and Woodland Bird Occurrence and Habitat Selection in the Prairie-Forest Transition Zone of Minnesota
… species of woodland and grassland nesting birds have experienced population declines in the midwestern United States. Habitat loss and habitat fragmentation are suspected to be two of the underlying causes for the population declines of woodland and grassland birds. The Minnesota Valley …
-
Avian Community Structure Associated With Woodland Habitats in Fragmented and Unfragmented Lanscapes in Western South Dakota
… production is decreasing habitats for grassland birds at alarming rates in the northern Great Plains. Establishment of planted woodlands (e.g., shelterbelts and windbreaks) has further fragmented remaining grasslands and created abrupt boundaries that exacerbate edge effects. My objectives were …
-
Predicting the effect of environmental change on wading birds: insights from individual-based models.
… and their characteristic species, like wading birds (Charadrii), are now experiencing worldwide declines. In such situations there is a need for predictive ecology to understand in advance how species might react to future changes. This thesis looks into how we can use individual-based models …
-
Tufted Titmice, Black-crested Titmice, and their Hybrids Occupy Different Habitats within their Hybrid Zone
… BCTI and with human disturbed habitats. I used eBird data and high resolution GIS land cover data in a grid-based sampling design to analyze the habitat associations of the three titmice types throughout the hybrid zone, plus locations immediately outside the h zone only occupied by the parental …
-
The effect of supplementary nectar feeders on bird-plant mutualisms in the Cape Fynbos, South Africa
Across the world, people feed birds to interact with nature. A variety of feeder types have been developed over the years to target a broad bird community. Attracting nectarivorous birds to gardens using supplementary nectar feeders is a popular human activity across the globe, but few studies have …
-
The urban/suburban wildlife survey volunteer project
… Volunteers for this project surveyed for bird species for the New Jersey Endangered and Nongame Species Program in Urban New Jersey areas. This project was considered unsuccessful by the Endangered and Nongame Species staff. By analyzing a volunteer project that was not as successful as …
-
Effects of Grazing Intensity and Temporal Application of Grazing Treatments on Nongame Birds in North Dakota Mixed-Grass Prairie
… including the habitat selection of breeding birds. Grazing, mainly for livestock production, is still an important land use practice and is one that impacts millions of hectares on both public and private land in the United States. In North Dakota alone, various grazing practices affect over …
-
Evaluating the Use of Autonomous Recording Units to Monitor Yellow Rails, Nelson's Sparrows, and Le Conte's Sparrows
… (LCSP) are poorly known, so systematic surveys of these elusive species are needed to inform conservation planning and guide management. A standardized protocol for monitoring secretive marsh birds exists (Conway 2009, 2011); however, these species call at night and may be missed during …
-
Non-Game Bird habitat Associated With Haul Roads and Surface Mining for Bentonite Clay
… possible differences in density and diversity of birds in relation to distance from mining haul roads and various aged mine spoils. Winter bird surveys and breeding bird counts were conducted during 1977 and 1978. Bird density and diversity were estimated and compared between the following habitat …
-
ECOTOXICOLOGICAL IMPACTS OF RUN-OF-RIVER DAMS ON THE AMERICAN DIPPER (CINCLUS MEXICANUS) AND MOUNTAIN STREAM FOOD WEBS
… mexicanus) is a high trophic-level river bird that occupies mountain streams year-round and is a well-described indicator of stream health; thus, it is an ideal species to study potential impacts of RoR hydropower on river food webs. From August 2014 to November 2015, I conducted seasonal …
-
Spatial Modeling of Detection and Abundance from Count Surveys of Animal Populations
When analyzing data from surveys of animal populations, it has been common in the past to ignore important factors such as variation in animal detection probabilities across space, and spatial dependence in animal density. We present a unified framework for modeling animal survey data collected at …
Page 1 of 2