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 37 for “"Nest boxes"”.
-
Efficacy of Nest Boxes for Wild Bumblebees as a Supplemental Pollination Strategy in Highbush Blueberry
… spp. L) are better suited. Studies on the use of nest boxes to augment wild bumblebee populations are limited and have focused solely on nest box occupation, without determining whether there is any subsequent increase in bumblebee visitation to flowers in the field. This two-year study evaluated …
-
Breeding and dispersal implications for the conservation of the Southern Ground Hornbill Bucorvus leadbeateri
Populations of secondary tree-cavity nesting bird species are often limited by a shortage of natural nesting sites. For the Southern Ground Hornbill Bucorvus leadbeateri that typically nests in natural tree cavities, the shortage of nesting sites is one factor potentially limiting population …
-
Conserving a charismatic grassland species in Illinois: the barn owl
… barn owls both suitable foraging habitat and nest sites. To mitigate this loss and support barn owl populations, many states, including Illinois, have installed nest boxes in or near grassland habitat. Many of these boxes were never monitored to document their success. Adding to the …
-
Understanding Behavior and Nest Box Usage in Three Species of Owl Monkeys: Azara's Owl Monkey (Aotus azarai), Spix's Owl Monkey (A. Vociferans) and Nancy's Owl Monkey (A. Nancymaae)
The use of tree holes and nest building behavior is uncommon among most primate species. In research facilities that house species requiring nesting sites, such as those that use tree holes in the wild, providing nest boxes is crucial to their psychological well-being. The goal of this study was to …
-
Understanding Behavior and Nest Box Usage in Three Species of Owl Monkeys: Azara's Owl Monkey (Aotus Azarai), Spix's Owl Monkey (A. Vociferans) and Nancy's Owl Monkey (A. Nancymaae)
The use of tree holes and nest building behavior is uncommon among most primate species. In research facilities that house species requiring nesting sites, such as those that use tree holes in the wild, providing nest boxes is crucial to their psychological well-being. The goal of this study was to …
-
Handling the heat: managing microclimates for nesting desert hornbills
… the impact of high air temperatures on hornbill nest success is mediated mostly (70%) through direct negative effects of high nest temperatures on chick growth. To address this, I tested whether an insulated nest box design could buffer negative effects of high air temperatures and improve …
-
Vocal responses of adult Eastern Bluebirds (Sialia sialis) to potential nest predators and the behavioral responses of nestlings
… are functionally referential and may provide nestlings with information about the threat posed by potential predators. However, few investigators have examined the responses of nestlings in cavity nests to the anti-predator vocalizations of adults. Therefore, the objectives of my study of …
-
Wood Duck Use and Nesting Success in Artificial Nesting Structures in Eastern South Dakota
Wood duck (Aix sponsa) nest boxes in eastern South Dakota were examined for use by wood ducks and competing species in 1991 (n=506) and 1992 (n=669). Nest box composition in 1991 was: 331 plastic double-walled (POW), 11 plastic single-walled (PSW), and 154 wooden nesting structures; in 1992, 382 of …
-
Nesting aggregation as a Determinant of Brood Parasitism in Mason Bees (Osmia spp.)
… such as kleptoparasitic wasps. High levels of nesting density have the potential to increase rates of brood parasitism by attracting larger numbers of parasites to areas with aggregations of nests. I conducted a field study in subalpine meadows at the Rocky Mountain Biological Laboratory in …
-
Reproductive Success of Southeastern American Kestrels (Falco Sparverius Paulus) Nesting in 230Kv Transmission Towers and Alternative Nest Structures in South-Central Georgia
… below the Fall Line. The paucity of adequate nest sites is the major factor contributing to the decline of this obligate secondary cavity nester. The largest breeding population of this subspecies in Georgia is located in the south-central part of the state in the hollow cross-arms of a 230kV …
-
Use of Artificial Nesting Cavities By Wood Ducks (Aix Sponsa) and Other Species in an Urban Environment
Usage of seventy artificial nest boxes designed for the Wood Duck (Aix sponsa) was observed during the spring and summer months of 1989 and 1990 on a lake located in a residential area of Springfield, Missouri. Data were collected on nesting and non-nesting species, predation, and competition among …
-
Estimating the Impact of House Sparrows on Eastern Bluebird Reproductive Success Across an Urban Gradient
… encompass all of North America, where it usurps nests of native cavity-nesting birds, frequently destroying eggs, and killing nestlings and adults. This two-year study investigated habitat effects as well as the impact and management of HOSPs on the reproductive success in Northeast Ohio of the …
-
Reproductive Success of American Kestrels (<em>Falco sparverius</em>) Nesting in Boxes along an Interstate in Northeastern Tennessee.
<p>Nest box programs provide supplemental nest sites for American Kestrels, <em>Falco sparverius</em>. When the availability of nest sites is a limiting factor, the addition of nest boxes can increase local breeding populations. These programs also facilitate the collection of data on breeding …
-
Perceived Predation Risk And The Responses Of Adult And Nestling Tree Swallows (tachycineta Bicolor)
… are functionally referential and provide their nestlings with information about the level of threat predators may pose. Although several investigators have examined the responses of nestlings of species with open-cup nests to the anti-predator calls of adults, few have conducted such studies …
-
Impacts des changements climatiques passés et présents sur la génétique et la démographie du Cincle plongeur (Cinclus cinclus)
… consisted in analysing ringing recoveries and nest-boxes frequentation from a dippers population settled on the river Syre and its tributaries (Luxemburg) and followed from 1979 to 2001. Populations census were also conducted on different water courses in Luxemburg, in order to determine dipper …
-
Ecological studies on the American kestrel (Falco sparverius) in east-central Indiana
… weather conditions. Kestrels occupied two of six nest boxes in the area and fledged a total of ten young. U. S. Fish and Wildlife Service data on 1,617 banded kestrels were analyzed. The independent effect of banding flyway on average distance traveled between banding and recovery was not …
-
Response of Australian Boobooks (Ninox boobook) to threatening processes across urban, agricultural, and woodland ecosystems
… to be limited by the availability of suitable nesting sites in urban or agricultural landscapes. Occupancy did not change significantly over the duration of the study in remnants provided with artificial nest boxes in either landscape type. However, in one instance, boobooks successfully used a …
-
Indirect effects of agricultural intensification on tree swallow (Tachycineta bicolor) foraging behaviour, body condition, and physiology
… stress and feather corticosterone). Artificial nest-boxes were erected at each of 5 sites with varying levels of agricultural intensification in south-central Saskatchewan, 2012-2014. Insect abundance and biomass were monitored daily using passive aerial samplers at each of the sites throughout …
-
Effect of variation in nestling hunger levels on the begging behavior of nestlings and the provisioning behavior of adult American Kestrels
<p>Little is known about how variation in nestling begging intensity influences the behavior of adult raptors and how responses of adult males and females to such variation might differ. My objective was to manipulate the begging intensity of nestling American Kestrels (Falco sparverius) and …
-
Honey Bee (Apis Mellifera) Foraging Preferences are Negatively Correlated with Alfalfa Leafcutting Bee (Megachile Rotundata) Productivity in Virginian Landscapes
… are managed, polylectic, solitary, cavity-nesting bees that are widely naturalized in North America. We selected M. rotundata as a model organism to validate the honey bee foraging data because they share some characteristics with other cavity nesting wild bees, but they are a tractable …
Page 1 of 2