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 “"Lymantria dispar"”.
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Forest edges enhance mate-finding in the European gypsy moth, Lymantria dispar
Understanding movement capabilities of individuals within a landscape is essential to identifying the effects of habitat boundaries on species abundances, ranges, and spread rates. Movement barriers due to habitat fragmentation may reduce mate-finding ability in some species, particularly in …
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Mono-Oxygenase Activity and Nutritional Ecology of Larvae of the Gypsy Moth, Lymantria Dispar
… herbivores, larvae of the gypsy moth, Lymantria dispar, exhibit certain host plant preferences: oak species are favored by all larval instars; pine may serve as an alternate host for older instar larvae, but first instar larvae suffer 100% mortality on pine (Barbosa et al., 1986). Since …
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Design and development of an instructional unit on integrated pest management (IPM): using the gypsy moth (Lymantria dispar (L.)) problem to teach IPM
… pest management (IPM) and the gypsy moth (Lymantria dispar [L.]) problem in Virginia. Construction of the guide followed three phases—design, development, and evaluation—of the Instructional Development Institute (IDI) model of instructional design. Lessons were developed using information …
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L'attività dei motoneuroni correlati con il "calling behaviour" ed il meccanismo di rilascio del feromone della farfalla notturna Lymantria dispar è modulata dall'octopamina: evidenze elettrofisiologiche
L'attività della ricerca è stata così articolata: 1. acquisire ulteriori dati atti a verificare, tramite stimolazioni elettriche del complesso TAG/VNC, se il rilascio di feromone si attua per via neurale o endocrina. 2. verificare sul TAG isolato dal resto del sistema nervoso, gli effetti di …
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Effects of European Gypsy Moth Defoliation in Mixed Pine-Hardwood Stands in the Atlantic Coastal Plain
As populations of the European gypsy moth (Lymantria dispar L.) move into the southeast, laboratory studies indicate that the potential exists for defoliation and possible tree mortality in mixed pine-hardwood stands. This dissertation describes a field study that was initiated to determine the …
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Influence of gypsy moth induced oak mortality on a black bear population
… National Park (SNP), Virginia to gypsy moth (Lymantria dispar) induced oak (Quercus spp.) mortality. Oak species composed >50% of the forest canopy of SNP, and oak mortality rates ranged from 1- ≥48%. I compared black bear population dynamics, food habits, movements and habitat use to …
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Premigratory movements of a long-distance migratory species: the Wood Thrush (Hylocichla mustelina)
… edge of forested areas [52%], (2) gypsy moth (Lymantria dispar) damaged deciduous forest [21.8%], (3)Virginia pine (Pinus virginianus) forest that had a heavy understory of young deciduous trees and an open canopy [15.6%], and (4) mature mixed forest [10.6%]. Most fledglings(73%) left the …
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Host specificity of microsporidia: Physiological and ecological considerations
… which occur in European populations of Lymantria dispar but do not occur in North American populations of L. dispar. These microsporidia are candidates for release as classical biological control agents into L. dispar populations in the United States. The microsporidia produced a variety …
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Mating Success in Low-Density Gypsy Moth Populations
… on the mating success of the gypsy moth, Lymantria dispar (L), in low-density populations. The gypsy moth is an insect pest of hardwood forests in many regions of the world. The discovery of the sex pheromone disparlure (cis-7,8-epoxy-2-methyloctadecane) produced by females marked the …
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Climate change in experimental ecology - The impact of warming and drought on key European tree, heath, and grassland species
… using the leaf consumption of the forest pest Lymantria dispar (gypsy moth) as response parameter (manuscript 2). Surprisingly, "warming" and "drought" did not effect the leaf palatability. However, leaf palatability was negatively correlated with an increasing density of trichomes (i.e. leaf …