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 101 for “"moths"”.
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Speciation genes in native New Zealand leafroller moths
… in a complex of native New Zealand Leafroller moths. Ctenopseustis and Planotortrix comprise ve and seven species, respectively. Intraspecic sampling resolved many allelic variants in four neutral genes (COI [barcoding region],COI-COII, EF-1 and TPI ). These loci show evidence of purifying …
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Moths fight back: arms race in the cloud forest
Moths and bats engage in a coevolutionary arm race, where the same signals bats use to find moths are being used by moths to avoid bats. Moths evolve not only behavioral but acoustic responses to avoid predation by bats. This research examines one small component of a complex, multispecies arm race …
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Electrostatic moths: The triboelectrifcation of Manduca sexta during flight
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2027-05-01
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Diversity of geometrid moths in a montane rainforest in Ecuador
… of the very species-rich 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 …
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The relative attraction of certain commercially available electric lamps for hornworm moths
… avai1able electric lamps as attractors moths for moths of both tobacco hornworm (Protonaree sexta (Johan.)) and tomato hornworm (Protoparce quinquemaculata (Haw.)) species.
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Response of tobacco- and tomato-hornworm moths to monochromatic radiation in the near ultraviolet
Eight-hundred-three moths were irradiated with 10-second exposures of radiation in bands 100 Angstroms wide at 200 A. intervals. The main range covered was 3150 to 4550 A. Four controlled temperatures between 60 and 80 F. were used. Observations of individual moth responses were combined to …
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Response of hornworm moths to monochromatic radiation in the visible and near ultraviolet spectrum
… and tomato (P. quinquemaculata (Haw.)) hornworm moths were irradiated individually with energy bands, nominally 33 Angstroms wide, centered at 3129, 3341, 3654, 4047, 4358, 4916, 5461, and 5780 A. Tests were made in a light-tight, air conditioned chamber. An analysis of variance was used to …
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Habitat and landscape-scale effects on the abundance and diversity of macro-moths (Lepidoptera) in intensive farmland
Since 1968 UK macro-moths have declined by 28%, with the most notable trends revealed for the south of England; the dual influences of climate change and intensive land use are thought to be the main drivers for this trend. This study aimed to determine the landscape and local-scale factors …
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Transcriptional effects of predator cues in the brain of Spodoptera frugiperda (lepidoptera: noctuidae) moths exposed to bat ultrasound
… adult male fall armyworm (Spodoptera frugiperda) moths to recorded ultrasonic bat foraging and attack calls for a prolonged period and constructed a de novo transcriptome using RNA-Seq on mRNA extracted from the brains of predator-exposed and unexposed moths. I then identified …
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Ocelli and octopamine and their effects on cabbage looper moth flight activity
… flight activity of control, sham, and anocellate moths with and without octopamine treatment. Sham and anocellate moths were produced by cauterization in last-instar larvae, of ocellar primordial cells for anocellate moths, and of non-involved cells for sham moths. Flight activity of moths was …
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AERIAL WARFARE BETWEEN BATS AND MOTHS: EFFICACY OF ACOUSTIC APOSEMATISM, FLIGHT BEHAVIORS OF UNPALATABLE PREY, AND TWO NOVEL ANTI-BAT STRATEGIES
Tiger moths (Erebidae: Arctiinae) have experienced intense selective pressure from echolocating, insectivorous bats for nearly 65 million years. In response, they have evolved a suite of remarkable defenses to deal with their would-be predators. Three key innovations underlie the success of the …
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Möglichkeiten und Grenzen des Lichtfangs bei der ökologischen Bewertung von Nachtfalter-Artenspektren : ein Vergleich zwischen der räumlichen Verteilung von Nachtfalterimagines und der ihrer Präimaginalstadien
… methods for studying the ecology of moths in general as well as questions concerning nature conservation in particular. It addresses the question as to whether and to what extent the habitats of adult moths and their respective pre-imaginal stages coincide. To answer this question the …
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Re-investigation of the female sex pheromone of the legume podborer, Maruca vitrata (Lepidopters: Crambidae)
… They developed a lure that attracts male moths in the field in Benin but they failed to attract male moths in the laboratory, or to develop a lure that attracts male moths in Asia or the rest of Africa. Synthetic lures also attracted significant number of female moths. The objectives of …
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Investigating host use and migration by the corn earworm (Noctuidae: Helicoverpa zea) using stable isotope and morphometric techniques.
… to early fall in 2000, 40-100 percent of the moths developed on C4 host plants and were present as adults in a cotton growing area where there were no known C4 hosts suitable for development. Our investigation has also shown significant morphometric differences in moths from C3 and C4 hosts. …
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Moths & Legends The contribution of chitoumou, the edible caterpillar Cirina butyrospermi, to food security, agriculture and biodiversity in a low-intensity agroforestry system
The global food system is essential for sustaining human life, yet in its current form it does so at a great cost to both human and environmental health. Food insecurity and diet-related disease are responsible for 70% of deaths worldwide, and the global extinction rate is ~1000 times estimated …
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Diversity and species composition of two different moth families (Lepidoptera: Arctiidae vs. Geometridae) along a successional gradient in the Ecuadorian Andes
… species-rich families of arctiid and geometrid moths was investigated in a montane area in the Andes in southern Ecuador (Reserva Biológica San Francisco, 3°58´ S, 79°5´ W) along a succession gradient ranging from a barely vegetated landslide area to mature forest understorey between 1,800 and …
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