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 11 of 11 for “"Ground beetles"”.
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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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Generalist predators in reduced-tillage corn: predation on armyworm, habitat preferences, and a method to estimate absolute densities
… predators removed from the field included ground beetles (Carabidae), rove beetles (Staphylinidae), ants (Formicidae), and spiders (Araneae). Armyworm damage to corn plants was significantly greater where generalist predator populations were reduced, through the use of pitfall traps and …
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Paleoenvironmental analysis of a late Holocene deposit : Stanton site, west-central North Dakota
… taxa includes 22 identified species, primarily ground beetles, including Dyschirius setosus Leconte, Elaphrus olivaceus Leconte, Pasimachus elongatus Leconte, Pterostichus leconteianus Lutshnik, and Patrobus stygicus Chaudoir. Interpretation of the fossil assemblages indicates a thickly …
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PLANT AND ARTHROPOD COMMUNITIES OF ALPINE ICE-RELATED LANDFORMS: ECOLOGICAL AND BIOGEOGRAPHIC IMPORTANCE
… submitted) analyse the efficacy of cryophilic ground beetles (Carabidae: Nebrini) as ecological indicators of sub-superficial ice presence, through community, demographic (3.5) and morphometric (3.6) approaches. The paragraph 3.6 focuses on the biodiversity hosted by two of the few Dolomitic …
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Vegetative communities as indicators of ground beetle (Coleoptera: Carabidae) diversity
… of a diverse group of invertebrates—the ground beetles (Coleoptera: Carabidae). Specifically, that (1) land units of the same classification contained similar carabid species assemblages and that (2) differences in species structure were correlated with variation in land unit …
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Taxonomy, Systematics and Biogeography of the Scaritinae (Insecta, Coleoptera, Carabidae)
Scaritinae are a subfamily of ground beetles (Carabidae), containing about 1900 species and 125 genera. They share a distinctive body shape linked to a burrowing lifestyle. The diversity of Scaritinae is concentrated in the tropics and warmer regions of the southern hemisphere, particularly …
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Modelling and Analysis of Individual Animal Movement
… explores the variation in movement of individual ground beetles (Poecilus cupreus) and demonstrates how this variation effects predictions of important population level movement dynamics, such as the expected displacement. Chapter 6 demonstrates that a highly peaked, heavy-tailed distribution …
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Beetle exoskeletal structure and surfaces determine specialized functions: Two case studies
… of how the exoskeletal structure and surface of beetles help mediate their interaction with other objects, to achieve certain functions that make them advantageous in their habitats. The first study investigates the morphology, stiffness and stress distribution in the click-beetle peghold, which …
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The influence of edge contrast on the diversity and composition of ground beetle (Coleoptera: Carabidae) functional traits in a lowland heterogeneous landscape.
… to changes in the environment. Carabids (ground beetles) are well suited to studies of edge effects. Edge contrast, or the harshness of an edge, plays a vital role in explaining the distribution patterns of carabid beetles belonging to different habitat affinity groupings at forest edges. …
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Potential of remote sensing and GIS as landscape structure and biodiversity indicators
… the value of remote sensing: plants, birds and ground beetles. Sampling of species diversity was carried out in so called Land Use Units (LUUs) established along a land use gradient from old-growth forest to intensive agriculture. Percentage of forest one LUU contained was the indicator for land …