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Articles 1 - 6 of 6
Full-Text Articles in Animal Sciences
Dialect Use Within A Socially Fluid Group Of Southern Resident Killer Whales, Orcinus Orca, Courtney Elizabeth Smith
Dialect Use Within A Socially Fluid Group Of Southern Resident Killer Whales, Orcinus Orca, Courtney Elizabeth Smith
Master's Theses
Resident killer whales, Orcinus orca, of the Northeastern Pacific form stable kinship-based matrifocal associations and communicate with group-specific repertoires of discrete calls (dialects) that reflect these associations. The gradual fission of matrilines is usually consistent with dialect variations among groups that may manifest as differences in call usage at the repertoire level or subtle structural differences of the calls themselves. Therefore, matrilines that are more closely related tend to be more acoustically similar. Within the endangered community of Southern Resident killer whales (SRKWs), recent evidence shows that one particular group (L pod) exhibits the lowest rate of intrapod association …
Clarification Of The Systematics Of The Haploporoidea (Trematoda) With Descriptions Of New Genera And Species, Michael Jay Andres
Clarification Of The Systematics Of The Haploporoidea (Trematoda) With Descriptions Of New Genera And Species, Michael Jay Andres
Dissertations
The superfamily Haploporoidea Nicoll, 1914 comprises two families, the Atractotrematidae Yamaguti, 1939 and the Haploporidae Nicoll, 1914, and the subfamily Cadenatellinae Gibson et Bray, 1982. All members are parasites of the alimentary tract or gall bladder of marine, estuarine, and freshwater herbivorous fishes. Overstreet and Curran (2005a) provided a review of the Haploporidae and recognized four subfamilies, the Chalcinotrematinae Overstreet et Curran, 2005, Haploporinae Nicoll, 1914, Megasoleninae Manter, 1935, and Waretrematinae Srivastava, 1937. In a series of five publications, Blasco-Costa et al. (2009a-e) revised the Haploporinae and erected a fifth subfamily, the Forticulcitinae Blasco-Costa, Balbuena, Kostadinova, et Olson, 2009. The …
Effects Of Animal Management Changes On The Activity Budgets And Walking Rates Of Zoo Elephants, Angela Dawn Mackey
Effects Of Animal Management Changes On The Activity Budgets And Walking Rates Of Zoo Elephants, Angela Dawn Mackey
Dissertations
The current study aimed to assess the effects of two management strategies, weekly rototilling of the enclosure and the provision of unpredictable foraging opportunities, on the daily behavior of six elephants housed at the San Diego Zoo. Observations took place from January to June 2013 and were conducted throughout a 24- hour period. The study was divided into three phases, each two months in duration. During the first phase (baseline) no changes were made to the current management routine of the elephants. In Phase 2, rototilling of the elephant enclosures was increased from once monthly to once per week, while …
Choice And Control Of Enrichment For A Rescued And Rehabilitated Atlantic Bottlenose Dolphin (Tursiops Trunactus), Hannah Bahe
Choice And Control Of Enrichment For A Rescued And Rehabilitated Atlantic Bottlenose Dolphin (Tursiops Trunactus), Hannah Bahe
Honors Theses
Animals living under human care experience stress related to a lack of control over t environment. One way to remedy this is through the use of cognitive enrichment, su choice and control of enrichment. This type of enrichment has been shown to have benefits for animals under human care including increased activity and social interactions. To determine if choice and control was more beneficial than enrichmen alone, a three year old male Atlantic bottlenose dolphin (Tursiops truncatus) was ex to novel enrichment items in two experimental conditions. For the first condition, th animal was given a novel object. During the …
Carbon And Nitrogen Analysis To Determine Competitive Outcome For Three Species Of Container Mosquitoes, John Lloyd Martin
Carbon And Nitrogen Analysis To Determine Competitive Outcome For Three Species Of Container Mosquitoes, John Lloyd Martin
Honors Theses
It is well documented that intense larval competition exists between species of container mosquitoes. Two of the main genera of mosquitoes found to inhabit containers are Aedes and Culex. This study sought to determine the effects that different detritus treatments and larva ratios would have on carbon and nitrogen content, mass, and survival of larvae of various species. The species used in this experiment were Aedes albopictus, Aedes aegypti and Culex quinquefasciatus. I hypothesized that Ae. albopictus would be more efficient in acquiring nitrogen then the competitor species Ae. aegypti and Cx. quinquefasciatus. Thus, I expected Ae. albopictus to …
Revision Of 13 Genera Of Haploporidae (Trematoda), Eric Edward Pulis
Revision Of 13 Genera Of Haploporidae (Trematoda), Eric Edward Pulis
Dissertations
The Haploporidae is a family of digeneans united by the combination of the possession of a hermaphroditic sac and a single testis or, rarely, two tandem testes. The major divisions in the Haploporidae have been based on the organization, development, and nature of the male and female reproductive systems. Overstreet and Curran (2005) has been the only attempt to organize the genera of the Haploporidae in a subfamilial framework. In the present work the validity of the subfamily Waretrematinae by Overstreet and Curran (2005) is assessed by morphological and molecular methods, based on original descriptions, type and vouchered, specimens and …