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 12 of 12 for “"flowering phenology"”.
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The Role of Continuous Flowering Phenology for in Neotropical Plant-Pollinator Interactions for Use in Conservation
… tree-let species with a continuous reproductive phenology (i.e. produce fruit and flowers daily during all months of the year). Plant-animal interaction science suggests that plant species with a longer duration of reproductive phenology will accumulate more mutualistic partners over time and …
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Co-occurrence and phenological niche separation in rodent pollinated Proteaceae
… has been done on patterns of co-occurrence and flowering phenology. The presence of three potentially rodent-pollinated Protea species at Fernkloof Nature Reserve, two of which were observed to co-occur, facilitated the following questions: i) are P. cordata, P. scabra and P. angustata …
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Intraspecific variation in Erica coccinea
… further the differences in floral morphology, phenology, fecundity and genetic relatedness across 29 populations. Results show patterns of seeder individuals investing more effort into nectar and seed production than resprouters and differences in flower colour and flowering phenology between …
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Biological studies of Rhinocyllus conicus, Carduus thoermeri and a model of the interaction between these two species
… computer simulation model written in PL/I of the flowering phenology of C. thoermeri and the seasonal population dynamics of R. conicus was constructed based on a synthesis of the literature, and on laboratory experiments which determined developmental periods, mortality for immature stages and …
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Ecology of flowering and fruiting in Lotus corniculatus L.
… of the ecological factors which are important to flowering and fruiting in the species, and some of their evolutionary implications. The work was carried out at Wytham Estate, Oxfordshire, U.K., mainly in an ex-arable field (Upper Seeds) and a more established grassland (Lower Seeds Reserve). The …
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Effects of temperature and pollinator availability on plant reproductive success in the Indiana spring ephemeral community
<p>Temperature is a key driver of phenology in both plants and insects, and even small changes in temperature can impact the reproductive success of insect-pollinated plants by influencing access to pollinator services. While it is well-established that temperature variation directly impacts the …
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Effects of climate change on plants and ecosystem functioning : Implications for managed temperate grasslands
… warming, late frost in spring etc.) affects flowering phenology, plant physiology, community composition, legume facilitation, plant nitrogen (N) and soil N status in managed temperate grasslands are lacking. It is known that land management can improve performances of plants and ecosystem …
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Phenology of the European corn borer, Ostrinia nubilalis (Hubner) (Lepidoptera: Pyralidae) in Virginia
… in the spring was studied in relation to the flowering phenology of several groups of trees and wildflowers. The potential indicator plants signalled the onset of overwintering generation adult emergence, peak overwintering generation peak flight activity - first generation egg mass abundance, …
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The Evolutionary Ecology of Arabidopsis Thaliana: Genotypic Diversity, Herbivory, and Elevated Carbon Dioxide
… thaliana life history (i.e., early and late flowering phenology) influenced the fitness response of different genotypes to natural levels of insect herbivory in a field experiment. Early flowering genotypes were more successful in escaping insect herbivory and thus, had greater vegetative …
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Utilizing maize genomics for pre-breeding insights
… O3 concentrations ([O3]). Lines were scored for flowering phenology and ear architecture traits. A multi-year analysis showed inconsistent effects of O3 on development. Hybrid ear length and diameter and inbred ear length were all significantly reduced under elevated [O3] compared to ambient …
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A landscape approach to forecasting climate change impacts on geographic ranges and phenologies of plants in the Washington Cascades
… patterns of reproductive synchrony (landscape flowering phenology) in plants across networks of habitat patches. In this work, we use previously estimated relationships between climate and flowering time, as well as spatially extensive datasets on species distributions and microclimates, to …
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Ecology of stingless bees (Apidae, Meliponini) in lowland dipterocarp forests in Sabah, Malaysia, and an evaluation of logging impact on populations and communities
… findind that was independent of fluctuations in flowering activity in the habitat. At one particular point in time colonies of one species (Trigona collina)collected mold spores (Rhizopus sp.) as a pollen surrogate. In order to obtain low-effort estimates of meliponine pollen sources a new method …