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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.
81

Biology of the European corn borer (Pyrausta nubilalis Hübn.) and two closely related species in northern Ohio

Poos, F. W. January 1926 (has links)
Thesis (Ph. D.)--Ohio State University, 1926. / Cover title. Vita. "Literature cited": p. 86.
82

Biology of the European corn borer (Pyrausta nubilalis Hübn.) and two closely related species in northern Ohio,

Poos, F. W. January 1926 (has links)
Thesis (Ph. D.)--Ohio State University, 1926. / Cover-title. Vita. "Literature cited": p. 86.
83

Structural and mechanical properties of insect fibrillar flight muscle in the relaxed and rigor states

White, David Clifford Stephen January 1967 (has links)
No description available.
84

Contributions to our knowledge of the biology of Machiloides Delanyi Wygodzinsky and Ctenolepisma Longicaudata Escherich : (Hexapoda Thysanura)

Heeg, J. (Jan) January 1963 (has links)
Among the South African Thysanura, the order Lepismatoidea has spread over the whole sub-continent, while all except one species of the order Machiloidea are confined to the discontinuous forest belt which lies below the escarpment of the inland plateau. The Machiloidea are not , however, strictly confined to the actual forests within their geographical region, some species invading regions of considerable aridity. Investigations on the ecology, water relations and orientation behaviour of a representative species of each order have been carried out. These have revealed that: (i) the physical conditions in the typical niche of the Machiloidea are extremely stable, whereas those in the habitat of the Lepismatoidea are subject to some considerable fluctuation. (ii) the Lepismatoidea are more resistant to desiccation than the Machiloidea; in both cases this resistance is due in part to physical barriers in the cuticle and partly to an active metabolic process. (iii) the Machiloidea rely on their eversible vesicles, situated on the abdominal coxosternites, for the uptake of water which cannot be drunk, such as a thin film of water or soil capillary water. (iv) the Lepismatoidea are able to absorb water from a subsaturated atmosphere. (v) the behavioural responses of both in respect of humidity, temperature, light and gravity, are such as to keep them in conditions within the range of their physiological limitations. From these results it is concluded that the Machiloidea can survive outside the shelter of forests, provided that water is readily available in some form in which it can be absorbed by the animals. The general implications of the results are such as to permit the erection of an hypothesis explaining the distribution of the Thysanura in South Africa in terms of t he availability of wate. The results also lead to speculations on the evolution of the Pterygota.
85

Scale insects (Homoptera, Coccoidea) in Kansas greenhouses

Davidson, Eugene Homer. January 1951 (has links)
Call number: LD2668 .T4 1951 D35 / Master of Science
86

Social suppression of reproduction in naked mole rats, Heterocephalus glaber

Faulkes, Christopher Guy January 1990 (has links)
No description available.
87

A comparative study of the anatomical basis of flight in Hemiptera

Cullen, M. J. January 1971 (has links)
No description available.
88

The mechanism of the oscillatory contraction of insect fibrillar flight muscle

Abbott, Roger H. January 1968 (has links)
No description available.
89

The neural control of insect flight muscle

Ballantyne, David John January 1976 (has links)
No description available.
90

A study of the distribution and relationships of endemic complexes of Psocoptera in the Hawaiian Islands

Chui, Wun-duen, Violet., 崔韻端. January 1969 (has links)
published_or_final_version / Zoology / Doctoral / Doctor of Philosophy

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