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 21 for “"ground-dwelling"”.
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ECOLOGY OF GROUND-DWELLING CARABID BEETLES (COLEOPTERA: CARABIDAE) IN THE PERUVIAN ANDES
Studies of diversity and species distributions are crucial in light of a predicted 4-6 degrees C warming by the end of the 21st century, especially in the tropics where many species may be especially sensitive to climate change. Little is known about patterns of insect diversity and richness in …
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Ground - dwelling arthropods in a biosphere reserve: patterns of diversity and conservation implications
Invertebrate diversity is often neglected in conservation planning initiatives. There are also very few large-scale diversity studies in Africa, with most studies being restricted to single properties and spatial extents that are on average not much larger than 30 km2. Here, we provide a …
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Ground-Dwelling Arthropod Community Structure of Saskatchewan's Agroecosystems and Seeded Grasslands
Ground-dwelling arthropods hold a critical role in maintaining the health and function of agroecosystems in the Canadian prairie landscape. However, the distribution of many groups is often limited to non-crop habitats, such as roadside ditches or distantly spaced grassland refuges. The high …
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Comparative Toepad Morphology in Chorus Frogs (Genus Pseudacris): Arboreal, Terrestrial, and Ground Dwelling Species
Toepad morphology was examined in the arboreal Hyla chrysoscelis, semiarboreal Pseudacris crucifer, terrestrial P. triseriata, P. brachyphona, and P. brimleyi, semiaquatic Rana catesbiana, and fossorial Pseudacris streckeri and ornata, and Gastrophryne carolinensis, using scanning electron …
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Effects of pine invasions on ground-dwelling ants on the southern slopes of the Swartberg Mountains
Ant and plant assemblages in patches of Pinus species trees in mountain fynbos and renosterbos (Elytropappus rhinocerotis) shru.bland were investigated in order to detennine whether there were differences in ant and plant species richness, abundance and cover between patches of pines and the …
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Impact of mine pollution of composition, diversity and structure of plant and ground-dwelling invertebrate communities around Kombat mine tailing dump, Namibia
… metal pollution on vegetation and communities of ground-dwelling invertebrates was investigated at Kombat Mine tailings dump in Namibia. Sixteen transect lines were marked around the dump. Plots, 15m x 15m, were marked at 50m intervals along each transect. Top soils in the demarcated plots were …
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The Biodiversity Mirage: the Effects of Habitat Degradation and Exotic Predators on Ground-Dwelling Forest Birds, Tenrecs and Lemurs in Northeastern Madagascar
… My goal was to examine the response of ground-dwelling forest birds, tenrecs (Lipotyphla: Tenrecidae) and lemurs to habitat degradation and the presence of exotic predators, and monitor population trends at resurveyed sites from 2008 to 2013. Using camera trap surveys and distance …
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GROUND BEETLES (COLEOPTERA: CARABIDAE) AS BIODIVERSITY INDICATORS FOR AGE STRUCTURE IN PIEDMONT FORESTS?
… potential ecological indicators for forest age. Ground beetles (Coleoptera: Carabidae) are typically ground-dwelling, generalist predators. Carabids were collected monthly through pitfall traps from March 2009 through February 2010 from 33 sites representing 5 forest classes approximately 0, 10, …
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The effects of invasive knotweed (Fallopia japonica) on invertebrate communities in western New York
… on flying invertebrates, and very few effects on ground-dwelling ones. Our research demonstrates that it is important to consider both taxa and season when investigating the effects of an invasive species on an ecosystem.
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Mating disruption in apple orchards: dispenser release rates, generic blends and community impact
… a low spray mating disruption program upon the ground dwelling arthropods was investigated. It was determined that a low spray mating disruption program may be more compatible with populations of natural enemies. More taxa, species and individuals were present because of the absence of damaging …
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Upland grassland agri-environment impacts on invertebrate biodiversity
… scheme management increased ground-dwelling invertebrate abundance and richness. Soil microarthropod total abundance and species richness were similar between agri-environment scheme and conventionally managed grasslands but effects were different in the two most dominant …
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The influence of an umbelliferous understory on the parasites of organic apple orchards in Canterbury
… of a wild parsnip (Pastinaca sativa L.) ground cover on the parasites of organic apple orchards was examined. The indirect influences on the major pest species, codling moth (Cydia pomonella L.) and lightbrown apple moth (Epiphyas postvittana (Walker)) were also investigated. Sampling was …
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The impact of pine plantations and alien invertebrates on native forest and fynbos invertebrate communities in Table Mountain National Park
… in Table Mountain National Park. The entire ground-dwelling invertebrate community was sampled at 31 sites in summer 2008/2009, using soil cores, leaf litter samples, pitfall traps, sugar-baited ant traps and decayed logs. A total of 112 404 individuals, representing 728 species (10 classes …
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Influence of Selective Insecticides and Cropping System on Arthropod Natural Enemies in Soybean
… during the growing season for two years. In 2014 ground-dwelling spider diversity was higher in full season soybean. In both years, double crop soybeans had higher abundance of spiders and insect natural enemies on the ground and in the foliage compared with full season soybean. This was …
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Leaf litter ant communities in tropical lowland rain forests in Sabah, Malaysia
… of the 10 other species of the highly reduced ground-dwelling ant community in the plantations are known as invasive tramp species, forming large exclusive territories. Correlative evidence and a field experiment implied, that leaf litter humidity, volume and temperature affect the distribution …
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Demography and ecology of a declining endemic: The Olympic marmot
… The Olympic marmots (Marmota olympus) are ground-dwelling squirrel that inhabit high-elevation meadows almost exclusively within Olympic National Park Despite this protection, anecdotal reports in the 1990's of disappearances from historically occupied locations suggested that the species …
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Demography and ecology of a declining endemic: The Olympic marmot
… The Olympic marmots (Marmota olympus) are ground-dwelling squirrel that inhabit high-elevation meadows almost exclusively within Olympic National Park Despite this protection, anecdotal reports in the 1990's of disappearances from historically occupied locations suggested that the species …
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Influence of habitat complexity on diversity and community structure of arboreal spiders in grassland-shrub systems
… studies in prairie ecosystems have focused on ground dwelling taxa or those associated with agroecosystems. Only limited data exist for shrub-dwelling species and few studies have compared arboreal spider occupancy across different grassland shrub species. I endeavored to understand this system …
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Analysis of the ecological principles underpinning forest landscape restoration: a case study of wood cricket (Nemobius sylvestris) on the Isle of Wight (UK).
… that locations with permanent low cover of ground vegetation, low canopy closure and high availability of leaf litter were the preferred habitat conditions for wood cricket. Ride and track edges, woodland peripheries and open areas created and maintained by management activities were found …
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