Global ETD Search
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Showing 1 to 19 of 19 for “"Graminoids"”.
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Post-Wildfire Vegetation Response on Diverse Rangelands in Northeast California: Does Livestock Grazing Management Matter?
… We examined responses of Bromus tectorum, annual graminoids, perennial graminoids, and species diversity to grazing management strategies (rested from livestock grazing one or two growing seasons after fire vs. grazing the growing season after fire) from 1-16 years after wildfire among sites that …
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Assessing the condition of the Flow Country peatlands to support their future protection: Monitoring blanket bog functioning during drought and mapping post-wildfire recovery
… peatland plant functional types (Sphagnum, graminoids, ericoids) and other cover types (pools and bare peat) were measured and compared across upland and low-lying blanket bog margins and centres, immediately before and during a summer drought in 2018, and over the subsequent year. During …
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Big Game Habitat Utilization in Noncommercially Thinned Ponderosa Pine in Custer State Park
… in thinned pine stands was five times greater in graminoids, three times greater in shrubs, and nine times greater in forbs than standing crop in unthinned pine stands. Utilization of graminoids averaged less than 1% and was not different across treatments. Shrub utilization was higher in thinned …
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CAN SHEEP CONTROL LEAFY SPURGE WITHOUT COMPROMISING EFFORTS TO RESTORE NATIVE PLANTS?
… germinated from the feces (80 forbs and 45 graminoids), including five non-native (three forbs, two graminoids) and two native (forb) species. Forb germination rates were highest in late summer samples, while graminoid rates were higher in early-summer and ones. Overall, sheep fecal …
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CAN SHEEP CONTROL LEAFY SPURGE WITHOUT COMPROMISING EFFORTS TO RESTORE NATIVE PLANTS?
… germinated from the feces (80 forbs and 45 graminoids), including five non-native (three forbs, two graminoids) and two native (forb) species. Forb germination rates were highest in late summer samples, while graminoid rates were higher in early-summer and ones. Overall, sheep fecal …
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Floristic dynamics of Appalachian pine-oak forests over a prescribed fire chronosequence
… germination and growth of various forbs and graminoids. Fire did not affect the abundance of exotic invasive species, but its effects on Ailanthus altissima were inconclusive. Low overstory mortality and prolific sprouting of ericaceous shrubs suggests that understory vegetation effects from …
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Prescribed Fire Effects on Woodland Structure, Light Levels and Understory Plant Communities in Missouri Oak-Hickory Woodlands
… accounted for by the proportion of understory graminoids, understory species richness, and slope. There was a significant difference in light levels between burned and unburned woodlands. This study also examined if canopy closure provides a representative measure of the light available to …
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Nocturnal Habitat Selection During Spring Migration by American Woodcock (Scolopax minor) in Central Kentucky
… at a roost site were percent bare, grass, graminoids, and woody vegetation, litter depth, dominant height of vegetation, distance to escape cover, visual obstruction of escape cover from 0-20cm, and distance to field edge. To predict density of woodcocks in each field I used step-wise …
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The impacts of seven silvicultural alternatives on vascular plant community composition, structure, and diversity in the southern Appalachians
… less dominant in harvested treatments, while graminoids and annual/biennial forbs were more important for high-disturbance treatments. These data represent only the initial results of a long-term study designed to examine plant-community response to silviculture for one harvest rotation …
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The effects of mammalian herbivores on successional grasslands in central Illinois
… species, particularly leguminous forbs, over graminoids. Deer, rabbits, and voles often damage woody plants and seedlings. I therefore expected fewer small-seeded plants in areas without access by rodents and rabbits, greater abundances of palatable plants in areas without access to each …
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Rodents and Restionaceae : sex-specific plant-animal interactions in dioecious plants
… nutrients. This has been shown to occur in graminoids after high levels of herbivory (Bryant et al 1983).
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Mechanisms Of Smoke-Elicited Seed Germination Responses and Possible Candidate Active Compounds In Smoke
… germination responses compared to that from graminoids. However, the mechanisms for such differences remain unclear. This research was conducted to understand how different smoke types interact with germination conditions to improve germination, to identify bioassay species among …
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The modeled effects of fire on carbon balance and vegetation abundance in Alaskan tundra
… uncertainty, followed by deciduous and then graminoids. This was attributed to a steady increase in evergreen biomass throughout simulations. The literature survey provided the greatest constraint to model parameters; however model uncertainty increased following the literature survey due to …
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Plant Species and Functional Diversity along Altitudinal Gradients, Southwest Ethiopian Highlands
… plant species and growth forms. Woody plants, graminoids and climbers showed a uni-modal structure while ferns and herbs revealed an increasing pattern of richness along the altitudinal gradient. By contrast, total vascular plants species richness did not show any strong response to altitudinal …
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Alternative management strategies for growing and stocker cattle
… or autumn-burned pastures. Basal cover of total graminoids and total forbs did not differ (P ≥ 0.30); however, prescribed-fire timing tended to influence basal cover of C3 (P = 0.06) and C4 (P = 0.08) grasses. Overall, these data demonstrate how alternative management strategies can influence …
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Managing disturbance in the longleaf pine ecosystem: effects of managed fire regime characteristics on fire hazard and community ecology at multiple spatial scales
… however, this relationship did not extend to graminoids. Boundary line regression did not show any significant effects of MFI on measures of woody plant biomass. Season-of-burn had no significant effects on understory plants in the constrained ordination or boundary line regression. These …
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Seasonal movements, habitat selection, and food habits of black bears (Ursus americanus) in Shenandoah National Park, Virginia
… 854 scats were analyzed for food content. Forbs, graminoids, squawroot (<i>Conopholis americana</i>), corn, and the fruits of trees, shrubs, and vines composed 90 percent volume of the annual diet. Eight percent of the food consumed was animal matter from mammals, birds, and invertebrates. During …
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Effects of coastal dynamics on colonization of Louisiana wetland plants by fungal endophytes
This dissertation explores the effects of stress and disturbance on fungal endophyte diversity and composition in obligate wetland plants in southeast Louisiana. I explored two types of endophytes: root and foliar. Each of these groups is known to live within apparently healthy host plants without …
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Conserving living landscapes: investigating the impacts of livestock grazing and assessing rangeland restoration potential in Overberg Renosterveld, South Africa
… categories including forbs, geophytes, annuals, graminoids, succulent shrubs and nonsucculent shrubs and then identified to family, genus or species level. The results of the soil seed bank study were correlated with the vegetation results from Chapter 3 to examine the relationship between the …