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Showing 1 to 20 of 172 for “"montane"”.
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Evolutionary Assembly of the Neotropical Montane Avifauna
… and subsequently occupied the entire Neotropical montane region. In the fourth chapter, I conducted a more in-depth investigation of the role niche breadth and elevational distribution on multi-species divergence. Using 2,475 mtDNA sequences, I estimated genetic divergence between population pairs …
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Home Range Analysis of the Montane Vole
This study on Microtus montanus was divided into three major sections: 1) An examination of nests, burrows, and runways, 2) A comparison of two methods of home range analysis--live trapping and radio-isotope tracing, and 3) A comparison of the home range of Microtus montanus with other species of …
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Drivers of Productivity of Montane and Boreal Breeding Ducks
… datasets from two distinct breeding areas: a montane site at Red Rock Lakes (RRL) Montana, USA, and a boreal site, the Yellowknife Study Area (YKSA) near Yellowknife, Northwest Territories, Canada. Ducks breeding at these sites have been studied for periods of 9 (RRL, scaup) to 26 (YKSA, …
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Ecology of Montane and Subalpine Forests Olympic Mountains, Washington
Made available in DSpace on 2014-12-09T22:25:48Z (GMT). No. of bitstreams: 1 6808076.pdf: 5856371 bytes, checksum: 8d4ab3ef6f3c5b51a1c38e380f42cdae (MD5) Previous issue date: 1967
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SPATIAL VARIABILITY IN SPECIES COMPOSITION IN NEOTROPICAL MONTANE TREE COMMUNITIES
… different elevational transects in tropical montane cloud forest (TMCF) between 1500 and 3600 m and (2) across a ∼ 40 km landscape transect near tree line above 3200 m in southeastern Peru. Stand variables were correlated with explanatory variables such as geographic distance, …
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Diversity of geometrid moths in a montane rainforest in Ecuador
… family of geometrid moths was investigated in a montane forest at the border of the Podocarpus National Park in southern Ecuador along an altitudinal gradient ranging from 1,040 m to 2,677 m above sea level. This study is part of a larger interdisciplinary project on diversity and functioning of …
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Pollination Biology of Gentianales in a Southern Ecuadorian Montane Forest
… and Rubiaceae) was investigated in a tropical montane forest in southern Ecuador. This study is part of an interdisciplinary project on the diversity and functioning of a montane ecosystem, and provides important results with respect to pollination biology. Such data are rarely collected for …
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Biogeography of Montane Mammals on the Colorado Plateau and Adjacent Regions
… and New Mexico). Presence/absence data of 25 montane mammal species were used to explore the interactions between historical and ecological processes affecting local and regional diversity patterns. Multivariate analyses, such as non-metric dimensional scaling, were used to explore factors …
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Impact of climate change on extinction risk of montane tree species.
… and reviewing the current conservation status on montane forest in the Tropical Andes. Starting with a global analysis, the potential impacts of climate change on montane ecoregions is investigated, by identifying those that are more vulnerable to the expected changes in temperature and …
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The Ontogeny of Thermoregulatory Abilities in Neonatal Cotton Rats and Montane Voles
… neonates and at temperatures 25, 30 and 35°C for montane vole (Microtus montanus) neonates to determine the response to cold, and to estimate the thermal neutral zone (TNZ) of each species. TNZ for cotton rats was 33-35°C and for montane voles around 30°C. Since norepinephrine (NE) stimulated BAT …
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Soil Amino Acids at Upper Tree Line, Montane and Lower Tree Line
… measured to record plant available N in alpine, montane and lower tree line soils in the Colorado Front Range. Soils were sampled in forest and non-forest at three sites with varying temperatures and productivity. Some species in the dominant genera at each site, <em>Kobresia</em>, …
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Biogeochemical Consequences of Hydrologic Conditions in a Tropical Montane Rain Forest in Ecuador
Tropical montane forests regulate the hydrological cycles of high-elevation areas being an important service for the local population. The objectives of my work were (1) to determine the major hydrological flow paths, (2) to quantify concentrations of dissolved organic C and organic and inorganic …
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Conserving temperate montane birds under climate change: an assessment of potential management options
Montane species are particularly vulnerable to the threats posed by climate change. As temperatures increase, their climatic niche will shift upwards – and species must either adapt to warmer conditions, or migrate to avoid extinction. In the first section of this thesis, I assessed the feasibility …
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Changing Human Impact On The Montane Forests Of The Eastern Andean Flank, Ecuador
The montane cloud forests of South America are some of the most biodiverse habitats in the world, whilst also being especially vulnerable to climate change and human disturbance. Today much of this landscape has been transformed into a mosaic of secondary forest and agricultural fields. This thesis …
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Ecology of Upland Snake Communities in Managed Montane Longleaf Pine Habitats of Georgia
… in these managed forests. Data for snakes in the montane (mountain) longleaf pine habitats remains unclear since management practice implementation. Currently, intensive restoration of montane longleaf pine habitats is taking place within two Wildlife Management Areas (WMA) in the Raccoon Creek …
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Hydrologic Response to Conifer Removal and Upslope Harvest in an Encroached Montane Meadow
… address the issue of conifer encroachment in montane meadows, however, few studies focus on the role that conifer removal plays on the encroaching meadow. Furthermore, few studies exist that document the hydrologic change from conifer removal and further restoration steps, if any, to take …
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Palaeoclimatic impacts on the phylogeography of an Afro-montane liverwort: Jamesoniella colorata (Lophoziaceae )
… distribution of genetic diversity of the Afro-montane liverwort Jamesoniella colorata and associating its inferred evolutionary history with major palaeoclimatic trends in South Africa. Liverworts are generally well-suited for phylogeographical studies because they often have low dispersal …
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