Zobrazeno 1 - 10
of 32
pro vyhledávání: '"W. R. Henson"'
Autor:
W. R. Henson
Publikováno v:
The American Naturalist. 93:315-320
The ability of an animal to modify its dispersive mechanisms as a response to density appears to vary among species to some extent. This ability may be critical in providing a means whereby aggregative tendencies may be reduced as overall density inc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::edd1fd6fd83780320adaaa39f229c078
https://doi.org/10.1086/282087
https://doi.org/10.1086/282087
Autor:
W. R. Henson
Publikováno v:
Annals of the Entomological Society of America. 54:698-701
Conophthorus coniperda does not feed from the time of adult emergence to the following spring. The gonads develop only after feeding, mating takes place at least twice, and oviposition continues over a considerable period. Flight muscle degeneration
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::18e8e0524c03646a718f6c5e4112c609
https://doi.org/10.1093/aesa/54.5.698
https://doi.org/10.1093/aesa/54.5.698
Autor:
W. R. Henson
Publikováno v:
Annals of the Entomological Society of America. 55:524-530
Adults of the white-pine cone beetle, Conophthorus coniperda (Schwarz), undertook spontaneous flight most frequently at temperatures between 27.5° and 35° C, Flight frequency was increased by exposure to dry air, although prolonged exposure resulte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7728b86c12aebd8c7b27dd6c7240e08
https://doi.org/10.1093/aesa/55.5.524
https://doi.org/10.1093/aesa/55.5.524
Autor:
W. R. Henson
Publikováno v:
Canadian Journal of Zoology. 36:809-818
The provision of shelter within tied leaves is shown to increase and modify feeding of Compsolechia niveopulvella Chamb. in a manner similar to the effect produced by raising ambient humidity. On this basis, the leaf-rolling habit of the larvae of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::014e3ad701b33ba638b4f1f51b25fefb
https://doi.org/10.1139/z58-067
https://doi.org/10.1139/z58-067
Autor:
W. R. Henson
Publikováno v:
Canadian Journal of Zoology. 32:421-433
The distribution of poplar foliage over the trees is described for a number of locations in the trans-Divide area of the Rocky Mountains of Canada. The statistics of some foliage attributes and of the distributions of a number of organisms infesting
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a79bab1ec9bf4b51be817bfc58692c0d
https://doi.org/10.1139/z54-040
https://doi.org/10.1139/z54-040
Autor:
Elton J. Hansens, G. Guyer, J. Magner, H C Cox, Paul P. Burbutis, Richard H. Foote, C. C. Blickenstaff, W. R. Henson, Don W. Micks, Edward H. Smith, H.O. Dunn, Loyd L. Stitt, George C. Decker
Publikováno v:
Bulletin of the Entomological Society of America. 15:45-49
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::89e7f2b4dfe96b9ad50ad460687077ce
https://doi.org/10.1093/besa/15.1.45
https://doi.org/10.1093/besa/15.1.45
Autor:
W. R. Henson
Publikováno v:
Canadian Journal of Zoology. 36:463-478
The relationship between habitat temperature, ambient temperature, and radiation for a series of insectan habitats on poplar leaves is shown to be highly specific. A series of these relationships is described and the possible ecological significance
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b4ce5c23a4cdacdefac9360dbedb38bd
https://doi.org/10.1139/z58-042
https://doi.org/10.1139/z58-042
Publikováno v:
BioScience. 20:401-404
This report is an analysis of the basic ecological research supported by various U.S. agencies for 1966-67. The analyses are based on an examination of approximately 50,000 Notices of Research Projects for the life sciences which were on file with th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d771570e9ca1ec42574b09af1951666
https://doi.org/10.2307/1295229
https://doi.org/10.2307/1295229
Autor:
Ray F. Smith, George C. Decker, Cluff E. Hopla, W. R. Henson, Alfred E. Emerson, W. H. Anderson, C. H. Mahoney, J. Everett Bussart, J. Alfred Adams, B. A. App, G. J. Haeussler, Curtis W. Sabrosky
Publikováno v:
Bulletin of the Entomological Society of America. 10:39-43
The annual business meeting of the American Grassland Council was held in Washington, D. C. on December 20, 1962. The present officers were re-e1ected to serve through 1963. Six new members were elected to the Board of Directors. Legal steps were com
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::296e4320eaf4549d10a6adb2fedc72cf
https://doi.org/10.1093/besa/10.1.39
https://doi.org/10.1093/besa/10.1.39
Autor:
R. F. Shepherd, W. R. Henson
Publikováno v:
Canadian Journal of Zoology. 30:144-153
The lodgepole needle miner (Recurvaria, milleri Busck) passes the greater part of its life in the interior of needles of its host tree. Investigations of the temperature of needle mines and its relation to ambient air temperature, radiation, and a nu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a39d0360d5e052657d2e17cef214dd44
https://doi.org/10.1139/z52-013
https://doi.org/10.1139/z52-013