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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
221

Studies on wing polymorphism in Gryllodes Sigillatus (Walk.)

Mathad, Shivamurteyya Basalingayya. January 1966 (has links)
No description available.
222

Changes in the insect populations of the low shrub synusia in a natural forest community exposed to chronic gamma radiation stress.

Brower, John Harold 01 January 1964 (has links) (PDF)
No description available.
223

A comparative study of certain aquatic insects, during the winter, in Western Massachusetts.

Woodward, Gordon 01 January 1939 (has links) (PDF)
No description available.
224

The systematics of Philippine Collembola : suborders Arthropleona and Neoarthropleona.

Gapud, Victor de la Paz 01 January 1969 (has links) (PDF)
No description available.
225

The Biology of the soft brown scale, Coccus hesperidum Linn. and its control in the greenhouse.

McLean, Donald Lewis 01 January 1955 (has links) (PDF)
No description available.
226

A preliminary study of the biology and control of the euonymus scale, Unaspis eunonymi (Comst.).

Warner, Charles Newton 01 January 1949 (has links) (PDF)
No description available.
227

A comparative study of the labia of insects with particular reference to the Hymenoptera.

Smith, Elmer William 01 January 1942 (has links) (PDF)
No description available.
228

Social and Individual Learning in the Fall Field Cricket

Skelton, Tricia 19 June 2023 (has links)
Social learning is a well-studied process in vertebrates, yet insect social learning studies have historically neglected solitary insects. To bridge this gap, I investigated whether the fall field cricket, Gryllus pennsylvanicus, could use individual and social learning to associate water with visual and odour cues. Demonstrator crickets had firsthand experience sampling water paired with cues, and observer crickets watched the demonstrators. I therefore tested demonstrators for individual learning and observers for social learning. I tested for learning by measuring cue preference in the absence of water. When quantifying cue preference by the proportion of time spent near rewarded cues, there was no evidence of individual or social learning. However, when quantifying cue preference by the first cue investigation (>3 seconds) during the test, crickets showed evidence of individual but not social learning. There was also a small effect of cue type on learning. These results differ from previous studies that found social learning in other species of crickets. The findings highlight that there are interspecific differences in learning and social behaviour, and that the method of quantifying learning can influence the outcome.
229

Some genetic properties of extreme and intermediate body weights in a wild population of Drosophila melanogaster /

Shulko, Carol Ann January 1979 (has links)
No description available.
230

Interspecific responses to sex pheromones among cockroaches of the genus Periplaneta /

Frazier, James Lewis January 1970 (has links)
No description available.

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