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 34 for “"reproductive capacity"”.
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Reproductive Capacity of Grape Root Borer, Vitacea polistiformis (Harris), and Implications for Pheromone Based Management
… effect of polygyny and delayed female mating on reproductive capacity, the evaluation of pheromone trap placement on the capture of males in a vineyard, and oviposition behaviors of gravid females in an in-field wind tunnel. Polygyny was observed in V. polistiformis. Males were able to mate at …
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The Influence of Estrogen Signaling on Male Reproduction in Medaka (Oryzias latipes)
… of aberrant estrogen signaling on male reproductive capacity, testicular morphology and gene expression changes in the small aquarium model fish, medaka, by investigating effects of a general estrogen receptor agonist, ethinylestradiol (EE2), and those of a G-protein estrogen receptor …
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The ecology and demography of the introduced macroalga Undaria pinnatifida (Harvey) Suringar in Port Phillip Bay, Victoria, Australia
… Information on its recruitment, growth and reproductive capacity in the field is also presented for the first time for a population Australia.
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Effect of heavy metals on spawning and hatching of Penaeus indicus in KwaZulu-Natal (Amatikulu Prawn Farm)
… of diseases, or indirectly by reducing their reproductive capacity. This study was carried out to investigate the effect of zinc and lead on the hatched eggs, and zinc and copper on spawing and hatching of eggs from mature female Penaeus indicus. The experiment for each heavy metal was …
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The Potential Future Impacts of Offshore Wind Energy Development and the Applicability of Size Limits for the Atlantic Surfclam, Spisula solidissima, Fishery in the U.S. Mid-Atlantic Continental Shelf
… regulatory size limits are designed to protect reproductive capacity, the selective removal of large clams has a disproportionately high impact on lifetime fecundity. Results indicate minimal influence of the current size limit regulation on fishery performance and population dynamics, …
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Patterns of parasitism and emergence in the gall midge Dasineura Dielsii (Diptera: Cecidomyiidae) : a biological control agent of Acacia cyclops in South Africa
… biocontrol agents to those that reduce only reproductive capacity. Dasineura dielsii was released in 2002 as a biocontrol agent for A. cyclops. This gall-forming midge destroys inflorescences and prevents seedpods from forming, but allows continued harvesting. Insects overwinter as larvae …
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Identifying Novel Transcriptional Effectors of the Juvenile Hormone Pathway in Aedes aegypti
… early in the adult are responsible for her reproductive capacity and by manipulating the signaling downstream of the receptor, we will be able to decrease the female's fecundity and limit vector populations. Via bioinformatics screening of RNA-sequencing data using the New Tuxedo pipeline, …
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Marriage in death : ritual representations of Belizean Garifuna ('Black Carib') society.
… are challenging the ideology surrounding their reproductive capacity, their ritual dances reproduce that ideology.
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Witzieshoek : women, cattle and rebellion
… which had been based on the productive and reproductive capacity of women. The men and women who rebelled were denouncing the organization of the community on Trust and Departmental terms. The response of the state to the rebellion was to appoint a Commission of Enquiry. The Commission, …
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Baited remote underwater survey of chondrichthyans in False Bay, South Africa
… decline due to chronic overfishing. Their slow reproductive capacity make them susceptible to extinction. To monitor the status of chondrichthyan species, the method or combination of methods used should be non-selective, applicable in a variety of habitats and under most environmental …
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Evolutionary Dynamics of Brown Treesnake (Boiga irregularis) Reproductive Ecology, with Implications for Invasive Species Control
… of selection by significantly impacting the reproductive capacity of invasives (in the context of “eco-evo” dynamics). The end result is that control measures subsequently alter the fitness landscape of an invasive over ecologically-relevant time, and lose their efficacy by so doing. However, …
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Botanical processes in urban derelict spaces
… strategies of early succession notably high reproductive capacity and seeds which are small, highly dispersive and form persistent seed banks. Dense seed banks were typically formed on sites and were dominated by a small set of consistently occurring species. Changes in seed bank density and …
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“Face of Fertility: Migrant isiXhosa-speaking Women's Reproductive Experiences and Agency in the Cape 1950-1989”
This thesis focuses on the reproductive experiences and agency of a group of isiXhosa-speaking migrants in the Cape from the 1950s to the 1980s. It examines why they decided to use contraceptive methods provided at state health facilities from 1960-1989, when they had been raised in a cultural …
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Reversible Germline Dynamics of Caenorhabditis elegans During Exposure to Pathogenic Bacteria
Little is known of how pathogen infection affects reproductive fitness and fecundity in metazoa. Caenorhabditis elegans is a free-living nematode and well-characterized animal model that encounters pathogenic microbes in its natural environment. How these pathogens affect the reproductive capacity …
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The Effect of PDSS2, a Component of the Coenzyme Q Biosynthetic Pathway, on Murine Oocyte Embryo Development
Female reproductive capacity dramatically declines with age. Decrease in oocyte number and quality is primarily responsible for this phenomenon. However, although multiple theories of reproductive aging have been proposed, the exact cause of oocyte quality decline remains unclear. One factor that …
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Life history and growth of three populations of Glossosoma nigrior (Trichoptera: Glossosomatidae) from three thermally distinct locations
… large individual may channel more energy towards reproductive efforts. The flexibility in voltinism and differing body size (and thus reproductive capacity)of each cohort are advantageous life history features that have allowed G. nigrior to inhabit areas that may be only thermally suitable for …
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Parasites in freshwater mussels: community ecology and conservation
… zebra mussels (Dreissena polymorpha) on the reproductive capacity of A. anatina. Rather than just focus on individuals, I estimate the reduction in population-level reproductive capacity caused by parasites across multiple sites, showing that parasites alone reduce potential reproductive …
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Reproductive Resilience of Aedes Aegypti Mosquitoes
… molecular adaptations have evolved to ensure the reproductive flexibility and resilience of this species when they are faced with intense droughts and changing climates? Here we show that the reproductive behaviors of adult Aedes aegypti females are tightly interconnected and centered on precise …
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Growth and root inhibition in Axenic hydrilla verticillata cultures
… the southern states. Hydrilla has extensive reproductive capacity, spreading by seeds, axillary and subterranean vegetative buds, fragmentation, and stolons. Subterranean buds, called tubers, are the predominant form of reproduction. This reproductive potential has made mechanical, chemical, …
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Seasonal abundance and biology of hyperparasites and their hosts associated with Pieris rapae (L.) (Lepidoptera: Pieridae) in the Brassica crop system
… in each mass were unaffected. However, it's high reproductive capacity could adversely affect a solitary host such as C. rubecula. Spilochalcis torvina was observed as early as late May but it was most active during the mid summer months. It's reproductive activity ceased by early October even …
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