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 36 for “"seedling recruitment"”.
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Environmental Flow Regime Recommendations for the Promotion of Salicaceae Seedling Recruitment in California’s Central Valley
… during the snowmelt recession is crucial to the recruitment of Salicaceae </em>spp<em>. It is recommended that flow rate decrease at 1 to 3 cm d<sup>-1</sup>. This range of flow rates allows for the root system of Salicaceae spp. to remain in contact with the receding instream and groundwater …
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Factors associated with Atlantic white -cedar seedling recruitment on microtopographic and landscape scales, Brown Mill Pond, Rye, New Hampshire
… has motivated researchers to investigate cedar seedling recruitment. In this study, conducted at Brown Mill Pond in Rye, New Hampshire, the distribution pattern of cedar seedlings was studied in order to identify which, if any, biological or physical factors observed at a microtopographic scale …
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Reconstruction of seed dispersal via modeling, seedling recruitment, and dispersal efficiency of Hemiphaga novaeseelandiae in Vitex lucens and Prumnopytis ferruginea in New Zealand
… are the local seed ‘shadows’ (distributions) and seedling patterns in Prumnopytis ferruginea (miro, Podocarpaceae, dioecious) and Vitex lucens (puriri, Verbenaceae, hermaphroditic), for which Hemiphaga novaeseelandiae, the New Zealand Pigeon (kereru, Columbidae), is the keystone agent of …
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The ecology of congeneric resprouters and reseeders (Hypericum spp.) along fire-frequented pine savanna ecoclines
… habitat associations, distribution limits, and seedling recruitment of <i>Hypericum</i> species along ecoclines in pine savannas of the St. Joe Bay State Buffer Preserve in Gulf County of Florida. In this area, ecoclines are characterized by topographic, soil moisture, and fire heterogeneity …
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Effects of understory vegetation manipulation on hardwood regeneration recruitment and growth in southern Appalachian forests
… spp.) and maple (<i>Acer</i> spp.) advance seedling abundance, growth, and development. Three study sites were located in southwest Virginia, and the following two treatments were implemented at each site: Understory Vegetation Control (UVC) and Control. Permanent sampling plots and …
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The role of small mammals in the population dynamics of two native grassland forbs: Lupinus sericeus and Lithospermum ruderale
… deer mice (<i>Peromyscus maniculatus</i>), on seedling recruitment and plant establishment of two perennial grassland forbs: <i>Lupinus sericeus</i> (Fabaceae) and <i>Lithospermum ruderale</i> (Boraginaceae), using experimental seed addition and rodent exclusion treatments. For both species, …
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The role of small mammals in the population dynamics of two native grassland forbs: Lupinus sericeus and Lithospermum ruderale
… deer mice (<i>Peromyscus maniculatus</i>), on seedling recruitment and plant establishment of two perennial grassland forbs: <i>Lupinus sericeus</i> (Fabaceae) and <i>Lithospermum ruderale</i> (Boraginaceae), using experimental seed addition and rodent exclusion treatments. For both species, …
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Disturbance ecology and size class structure of the Mulanje cedar of Malawi, Widdringtonia whytei and associated broadleaved forest
… by even-sized, disjunct frequency distributions. Seedling recruitment was found in recently burnt sites and not in middle-aged or oldgrowth forest. This indicates reliance on the catastrophic mode of regeneration for W. whytei, which takes advantage of the well-lit, competition free environment …
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Fate of Eucalyptus marginata seed from canopy-store to emergence in the northern jarrah forests of Western Australia: Research to help improve regeneration following shelterwood treatment
The establishment of seedling regeneration is a key process in and indicator of ecologically sustainable forest management. The availability of seed and the creation of a suitable seedbed are recognised as important factors limiting seedling recruitment. A silvicultural method commonly used across …
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Stand Dynamics in a Southern Appalachian Montane Pine Barren, Warm Springs Mountain, Virginia
… dendrochronology to document establishment and recruitment patterns and to identify successional trends at this site. Tree establishment of the dominant tree species (P. rigida and Quercus rubra L.) peaked following the last known fire event in the early 1930s. Vegetation analysis revealed an …
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Causes and consequences of the postfire increase in deer mouse (Peromyscus maniculatus) abundance
… of the postfire increase in mice for conifer recruitment in burned forest. I documented a shift in small mammal communities away from more specialized species such as red-backed voles (Myodes gapperi) and shrews (Sorex spp.) and towards greater abundance of generalist deer mice after a …
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Causes and consequences of the postfire increase in deer mouse (Peromyscus maniculatus) abundance
… of the postfire increase in mice for conifer recruitment in burned forest. I documented a shift in small mammal communities away from more specialized species such as red-backed voles (Myodes gapperi) and shrews (Sorex spp.) and towards greater abundance of generalist deer mice after a …
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An Investigation into the successful establishment of a hay meadow community on clay capped landfill.
… on the inhospitable bare soil to encourage seedling recruitment as well as addressing potential conflicts with public acceptability of landscape changes during restoration. Soil was identified as being the key factor in the successful establishment of a hay meadow community and the …
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The influence of rainfall variability on savanna tree seedling establishment
… the rainfall requirements necessary for tree seedling survival of different savanna species in the first year of growth. Results from a field drought experiment showed that dry season survival for seedlings of Acacia nigrescens and Philenaptera vialacea was not related to wet season length. …
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Life History Variation In Artemisia Campestris On A Lake Huron Sand Dune System
… Permanent plots were established to study seedling recruitment and to augment sample size. To determine if polycarpy was under genetic control, plants were grown under uniform conditions at two locations and a reciprocal transplant-replant experiment was performed.;The degree of polycarpy …
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Patterns of plant diversity and their management across South African Rangelands
… interaction between patterns of diversity, forb recruitment and disturbance effects across the mesic to semi-arid rangelands east of the escarpment in southern Africa. Results were compared to a well studied North American tallgrass prairie, Konza. Sampled between 1 m2 and 1000 m2 across 25 …
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An experimental demographic approach to exotic plant success: <b>Cynoglossum officinale</b> in its native and introduced ranges
… performance in Montana. Second, in both ranges, seedling recruitment responded positively to disturbances, but seedling survival was more positively affected in Montana. Integrating these results into integral projection models of population growth suggest that while escape from enemies may …
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