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 26 for “"Nest building"”.
-
The evolution of shelter: ecology and ethology of chimpanzee nest building
… orangutan) build analogous structures (called nests or beds) at least once a day throughout their adult lives, which suggests that this elementary technology was present before the hominid lines separated. This thesis investigates the variability and function of specifically wild chimpanzee …
-
Adaptive value and development of nest-building in Red Bishops (Euplectes orix)
… success is mainly determined by the number of nests built by a male. In weaverbirds, nest-building is a complex sequential behavioural pattern that needs to be learned in the first two years of life. I analysed what aspects of nest quantity and nest quality influence male mating success in red …
-
From nest building to life-history patterns: does food supplementation influence reproductive behaviour of birds?
… Supplementary feeding significantly advanced nest construction and decreased brood provisioning rates for both species. Supplemented Blue Tits significantly decreased daily incubation activity and increased both the proportion of extra-pair young and proportion of males per brood while …
-
EGCG and voluntary exercise : an examination of treatment effects using the TgCRND8 mouse model of Alzheimer's disease
… and memory performance in the Barnes maze, nest building, the open-field, anxiety in the light-dark box, and 2) soluble, amyloid-beta levels in the cortex and hippocampus. Untreated Tg mice showed deficits in nest building behaviors, as well as poor spatial learning in the Barnes maze. …
-
Co-evolution of social relationships and cognition: a theoretical investigation
… populations in three social contexts---divorce, nest building, and parental care---wherein partners are uncertain of one another's state. In two of these cases we found social cue use generated unexpected uncertainty dynamics, with divorce characterised by negative social information feedback …
-
Evidence for Local Adaptation in Birds
… test the fitness consequences of divergent nest morphologies of Yellow Warblers (Dendroica petechia) using reciprocal nest transplant experiments between a temperate and subarctic site in Canada. Yellow Warblers breeding at our subarctic site build larger nests constructed with more …
-
The Causes and Consequences of Complex Behavioral Trait Variation in a Resident Montane Bird
… conditions (e.g. poor parental care, low-quality nest environment, etc.), but whether these same patterns are exhibited in natural populations is relatively unstudied. This dissertation provides novel insights into the mechanisms shaping complex behavioral trait variation in wild systems focusing …
-
The Breeding Ecology of Least Bitterns (Ixobrychus exilis) at Agassiz and Mingo National Wildlife Refuges
… broad geographic area. Information gathered from nests included: nest success, egg and clutch measurements, hatchling developmental rates, and habitat measurements. Data suggest geographical variation in clutch size, relative growth patterns of hatchlings, and nest densities. A total of 74 nests …
-
Captive Chimpanzees' (<i>Pan troglodytes</i>) Night-Time Enrichment Selection and Use
… captive chimpanzees with object enrichment and nesting materials at night. These findings have implications for nest-building behavior and overall welfare in captive chimpanzees.</p>
-
The evolution of honeycomb
<p>The regular cells of honeycomb nests have fascinated scholars and mathematicians for millennia. In 36BC, the Roman scholar Marcus Terentius Varro first proposed the “honeycomb conjecture,” in which he postulated that bees build their comb using hexagons because it is the shape that requires the …
-
Aspects of the biology, behavior, and economic importance of Camponotus pennyslvanicus (Degeer) and Camponotus ferrugineus (Fabricius) (Hymenoptera: formicidae)
… foraging sites. The division of labor during nest construction may be based on subcaste. Major workers appear to be responsible for most nest-building in mature colonies.
-
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 …
-
Predatory and Mutualistic Interactions between Freshwater Minnows and their Predators
… American freshwater ecosystems is the pebble nest-building minnow, the bluehead chub (Nocomis leptocephalus; "chub"). Chubs provide spawning habitat for not only themselves, but for other minnows, collectively called "nest associates". In this work, I observe the predatory and potential …
-
Larval fish abundance and habitat associations in backwaters and main channel borders of the Kanawha River
… centrarchids of this river. Upon leaving the nest, the <i>Lepomis</i> larvae moved into the deeper open water areas within the backwater. After reaching the juvenile stage, these same larvae returned to the shallow water habitats where they inhabited vegetated areas. Emerald shiner larvae, …
-
Flight Vocalizations and Displays of Adult Chimney Swifts (Chaetura Pelagica): Description and Function
… abandoned, concrete shelters for roosting and nesting. Camcorders were used to record swift behavior and vocalizations during the 2008 and 2009 breeding seasons (April – September). I examined possible variation in the characteristics of swift vocalizations and the frequency of different aerial …
-
The ecology of Namibian fairy circles and the potential role of sand termites (Psammotermes allocerus Silvestri) in their origin
… including selective grazing, allelopathy, nests of social insects, and competitive interactions between plants ('self-organisation'). Fairy circles are perhaps the most archetypal of these patterns, taking the form of evenly-spaced, circular to elliptical barren patches 2-12m in diameter. …
-
The biology of the Cape Weaver Ploceus Capensis with special reference to its polygnous mating system
… for mates and the advantage to the young male in nest-building and territorial activities on the periphery of the colony are the main pressures for deferred maturity. A detailed investigation of breeding seasons in the species is reported and it is shown how aspects of the clutch-size and …
-
Breeding behaviour and polygyny in the Red Bishop bird Euplectes orix (L.)
… birds. Recently it has also been recorded as nesting in standing crops in some areas. The adult birds are sparrow-sized, 12-15 cm in length and weighing 20-30 gm. The wing-length in the males ranges from 70-83 mm, and in females from 64-72 mm. Mackworth- Praed and Grant (1962) mention that …
-
Nesting and food habits of the long-eared owl (Asio otus wilsonianus) in Michigan
Thesis (M.S.)--Michigan State University of Agriculture and Applied Science, 1957
Page 1 of 2