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.
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Showing 1 to 20 of 192 for “"Conspecific"”.
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Behavioral Response of Sternotherus Odoratus to Conspecific and Predatory Chemosensory Cues
… secretions of Sternotherus odoratus as a conspecific alarm cue and as a chemical cue used in courtship. Turtles were collected and randomly assigned to one of four treatments, including a control treatment (n=10), a predatory treatment (n=10), and two conspecific treatments. One …
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Influencing habitat selection and use through conspecific attraction and supplementary feeding
… natural food sources at the release sites. Conspecific song playback as an attractant for many bird species can be used as public information about high habitat value and additionally lure birds to good food sources and nest sites. Artificial feeding stations were set up at 18 locations in …
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The responsivity of neonatal chicks to conspecific distress and contentment vocalizations
… a straight runway or an open-field to same-age, conspecific distress and contentment vocalizations over the first several days of post-hatch life. Three hundred forty-eight White Leghorn chicks from either a sample of the Cornell Randombred or Athens Canadian x Cornell Randombred population were …
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The effect of conspecific support on the asymptotic properties of competing species
… In this dissertation we consider the effect of conspecific support on the coexistence of species. We show that, even if the competing species have the same demographics and interaction, their coexistence can be destabilized by sufficient level of conspecific support. When considering large …
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Sexual Dimorphism and Behavioral Responses to Conspecific Chemical Cues in Pagurus samuelis
… females to display meral spread when sensing conspecific cues. Both sexes displayed no difference in the amount of time spent stationary with head-extended across all cue treatment waters. Both sexes tended to walk more in the presence of agonistic cue waters.
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Scale dependent processing of conspecific signals in the gray treefrog Hyla versicolor
… in space and time. As these signals come from conspecifics they tend to be self-similar in many parameters, providing a challenge for the auditory system to detect, localize, and discriminate between target signals amongst the background. Additionally, signal-environment interactions during …
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Studies on the neural processing of conspecific songs in the cricket Teleogryllus oceanicus (Le Guillou)
… in relation to the identification of its conspecific songs. T. oceanicus males produce three song types related to three different behavioural strategies. Although each of the three songs have very similar frequency spectra their temporal patterns are very different and highly complex, …
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Effect of selection for interspecific behavior on stress and conspecific behavior in tame and aggressive foxes
… behavior towards humans has an influence on conspecific behavior has yet to be addressed. Our second aim was to investigate how selection for tameness and aggression towards humans is related to concurrent behavioral changes observed in conspecifics in tame and aggressive foxes. Through …
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Interrelationships of conspecific responses to call quality and body size of male Rana clamitans (Anura: Ranidae)
… produces different responses in recipient conspecifics. The studied call repertoire contained: a single-note call, a multiple-note call, and a growl call. The acoustical properties of the single-note calls (most frequently performed call) from 99 males were analyzed. The dominant frequency …
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Testing proximate causes and ultimate explanations of social cue use for habitat selection by songbirds
… whether Yellow Warblers discriminate between conspecific song categories social cues with different information about habitat quality. Second-category song broadcast attracted more Yellow Warblers to breeding habitat than first-category song did, highlighting that yellow warblers prefer to use …
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Mechanisms and consequences of hybridisation between Atlantic salmon (Salmo salar) and brown trout (Salmo trutta)
… poorly understood. Salmon and trout experience conspecific sperm precedence during in vitro sperm competition experiments, when sperm volumes and release times are equalised. This thesis firstly aimed to explore the dynamics of gametic interactions underlying this reproductive isolation. …
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The Evolution of Mate Choice in Spadefoot Toads
… males associated with a stimulus simulating a conspecific calling male, when given a choice between conspecific and heterospecific calls. When males were presented with different conspecific calls, poor-condition males associated with the stimulus preferred by females, whereas good-condition …
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Collision avoidance behaviour in a pair of flying locusts (Locusta migratoria L.)
… motion in the environment. A rapidly approaching conspecific or a predator represents a looming object approaching on a collision course and is involved in triggering urgent collision avoidance behaviours. To avoid predators and collision with conspecifics, and to navigate through complex …
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The role of electronsensory signals on the locomotor performance of the weakly electric fish apteronotus albifrons
… factors that shape relevant aspects of behavior. Conspecific signals is one of these factors and operates in a wide range of contexts. In schooling fish, coordinated movement is based on visual or mechanical cues and signals. In contrast, most gymnotiforms and mormyriforms are nocturnal or live in …
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The effects of social experience on imprinting in differentially housed domestic chicks: a multi-measure approach
… conditions: alone, in the presence of an isolate conspecific, or in the presence of an unfamiliar 'socialate' conspecific. All chicks were then tested individually on Day 5 post-hatch with the stimulus-object present in the apparatus. They were again tested on Day 6 post-hatch with the …
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A multi-facetted approach to investigating theory of mind in corvids
… to respond to perceptual and desire states of conspecifics, and so far has not produced evidence for or against an ability to also respond to others’ beliefs. Further, it is unclear which mechanisms could be the basis of corvids’ abilities. Thus, there are two open questions in regard to corvid …
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Strain Variation as a Window Into the Neural Logic of Drosophila Mate Choice
… been reported to show a preference for courting conspecific females. Here, we summarize past work and introduce new data to show that these preferences correspond with a male's response to sex-and species-specific hydrocarbons displayed on the fly cuticle. In particular, individuals from many …
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Female Preference and Prezygotic Isolation In the Fundulus Notatus Species Complex
… video monitoring. Female association time with conspecific versus heterospecific males was used as a proxy for mate preference. Additionally, male standard length and spot density were measured to assess the influence of morphology on female behavior. Results revealed significant clade-level …
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"""Copulatory memory"": A novel model for the study of recognition in the adult male rat"
… of the male's recognition of a familiar female conspecific. In these studies, the male's recognition of the familiar female is associated with the exhibition of rapid mounting of the female and decreased female-directed olfactory investigation. The recognition of the familiar conspecific is …
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