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 85 for “"mate choice"”.
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Hormonal mechanisms for variation in female mate choice
Although female mate choice has been the subject of many investigations, the causes of variation in mate choice are less understood. Theoretical models predict that individual females should show variable mate choices as a consequence of intrinsic and extrinsic factors. Empirical support for these …
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The Evolution of Mate Choice in Spadefoot Toads
… 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 males associated with the stimulus not …
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Mate choice and reproductive success in the speckled bushcricket, Leptophyes punctatissima
… to the stationary female. Consequently mate choice could occur at either of two stages: first, during the interchange of calls and second, on the basis of proximate criteria once the male has approached. There is no evidence that females choose their mates on the basis of calling …
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Breeding territory settlement patterns and mate choice in a monochromatic tyrannid flycatcher
… and what cues do females use to select a mate in the monochromatic Pacific-slope flycatcher (Empidonax difficilis)? I addressed this question by showing that territory settlement patterns occur "preemptively" on the breeding grounds along a habitat-quality gradient defined by red alder …
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Sex and Fear: Mathematical models of mate choice, parental care, and maladaptive anxiety
… of communication. Chapter 2 presents a model of mate choice where females must infer from his appearance whether a potential mate will choose to be a good parent to the future offspring. Chapters 3 and 4 deal with mathematical models of anxiety disorders. These disorders affect a huge number of …
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Strain Variation as a Window Into the Neural Logic of Drosophila Mate Choice
… wild food patches where flies congregate to mate–is a dynamic interaction between a male and surrounding potential partners that requires he integrate multiple sensory cues to direct his efforts efficiently and appropriately. While the behavior follows a similar basic pattern across …
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Olfactory Communication, Mate Choice, And Reproduction In A Pair-Bonded Primate (aotus Spp.)
Primates are typically considered microsmatic (i.e., having a relatively less developed sense of smell) when compared to other mammals, yet it is becoming increasingly clear that olfaction is an important sense involved in communication in numerous primate taxa, including humans. Still, compared to …
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Attractive silences in cricket courtship song : mate choice using a short-range signal /
… for locating males, species-identification, and mate choice. Although numerous mating systems employ multiple signals, research has generally focused on long-range signals perhaps due to their prominence and ease of study. This study focused on the short-range acoustic courtship song of crickets. …
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The role of individual variation in auditory and visual processing: implications for mate choice
… and visual temporal resolution) affected her mate-preferences. Females with relatively better auditory temporal resolution preferred songs that ended with higher frequency, lower entropy, and shorter notes while females with relatively poorer auditory temporal resolution preferred the …
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Mate choice in the Polychaete nereis acuminata : the role of aggression and parental experience
… aggressive interactions between males and female mate choice. The presence of a cannibalistic male did not affect the aggression observed between two individuals and it appeared that females could not discriminate between males that had cannibalised their egg mass. Conditioned water was used from …
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Genetic introgression and female mate choice within the Calendulauda albescens/C. barlowi hybrid zone
… C. barlowi, with female C. albescens choosing to mate with male C. barlowi.
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Sexual Selection in Mantled Howling Monkeys (Alouatta palliata), With an Emphasis on the Role of Female Mate Choice
… strategies, including the extent of female mate choice. The primary goal of this dissertation was to explore the role of female mate choice in mantled howling monkeys (<italic>Alouatta palliata</italic>), a species in which males have previously been assumed to control mating. </p><p>From …
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Reproductive Decisions in American Robins (Turdus Migratorius): Relationships Among Paternity Allocation, Parental Care, Plumage Variation, and Mate Choice
… by examining how these interactions affect mate-guarding opportunity, extra-pair paternity (EPP), parental care, and mate choice in the American robin, Turdus migratorius, a socially monogamous, multi-brooded songbird. Reproductive success in American robins was strongly influenced by the …
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Predictability in an unpredictable world: Situating zebra finch (Taeniopygia guttata) personality in the contexts of mate choice and parental care
… known to influence social interactions, such as mate choice and parental care. However, most studies concentrate on how personality traits predict behavior in one domain, such as courtship, rather than connecting personality traits to several different downstream behaviors, such as reproduction …
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The Role of Male Vocal Signals During Male-Male Competition and Female Mate Choice in Greater Prairie-Chickens (<i>Tympanuchus cupido</i>)
… in aggression, territorial defense, and female choice. The acoustic structure of vocalizations is influenced by physical constraints on the vocalizer, suggesting a potential for discrimination among individuals. In the lek-mating Greater Prairie-Chicken (<i>Tympanuchus cupido</i>), male …
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A Tale of Two Butterflies: The Effect of Larval Social Environment and Circadian Rhythms on Mating Behavior in Bicyclus anynana and Heliconius hewitsoni
<p>Two key components of mate choice research focus on: 1) who an organism mates with, which may be influenced by any number of factors from sexual ornamentation to male-male competition; and, 2) when an organism courts, be it daily, monthly, or seasonally. Both aspects are especially important for …
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The role of male-male aggressive signals in reproductive isolation between two hybridizing warblers
… the dynamics of the hybrid zone, both via female mate choice and male-male competition. In many species the same song functions for both female mate choice and male-male competition. However, some species, such as the Parulidae Warblers, sing songs with specific functions, where one song is …
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Preference and affiliation refines the neurotranscriptome pathway for mate preference
Mate choice decisions and behavior contribute to long-term evolutionary outcomes. Understanding the genetic architecture encapsulating mate choice is an important metric in identifying the drivers and variability in those decisions. To address this question, female sailfin mollies (Poecilia …
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The effect of diet and parasite load on female phonotaxis in the Texas field cricket, Gryllus integer
… selectivity. The effect of female quality on mate choice was examined in Gryllus integer by comparing the phonotactic responses of females on different diets and with different parasite loads to various synthetic models of conspecific calling song. Test females were virgin, 11-14 days old, and …
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