Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Jack R. Layne"'
Autor:
Jack R. Layne, Sarah R. Robich
Publikováno v:
Annals of the Entomological Society of America. 106:840-845
The ability to initiate freezing at elevated subzero temperatures is deemed an important adaptation in freeze-tolerant insects, as this phenotype allows them to avoid potentially lethal flash freezing and to conserve both body water and stored energy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08fd10aec908a69cb23aa74a194a10da
https://doi.org/10.1603/an13043
https://doi.org/10.1603/an13043
Publikováno v:
Environmental Entomology. 37:1069-1073
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d3905d832158aa9b0a7c78f39abb9863
https://doi.org/10.1093/ee/37.5.1069
https://doi.org/10.1093/ee/37.5.1069
Publikováno v:
Environmental Entomology. 37:1069-1073
Insects evolve levels of cold hardiness that are sufficient to meet the severity of thermal conditions in their hibernacula. This study examined freeze tolerance and related features in caterpillars of Hypercompe scribonia, which is the overwintering
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0cadad9ab256e51868007de4c6bdb904
https://doi.org/10.1603/0046-225x(2008)37[1069:chapmi]2.0.co
https://doi.org/10.1603/0046-225x(2008)37[1069:chapmi]2.0.co
Autor:
Benjamin James Peffer, Jack R. Layne
Publikováno v:
Journal of Experimental Zoology Part A: Comparative Experimental Biology. :570-575
The effects of freeze exposure at −4.5°C for as long as 6 weeks on long-term postfreeze survival and body fluid composition were investigated in caterpillars (woolly bears) of the arctiid moth Pyrrharctia isabella. Woolly bears routinely survived
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ec473101a99de1ef069d5205e3592f60
https://doi.org/10.1002/jez.a.300
https://doi.org/10.1002/jez.a.300
Autor:
Jack R. Layne
Publikováno v:
Journal of Thermal Biology. 30:267-271
1. The giant leopard moth ( Ecpantheria scribonia ) caterpillars were collected during October in Pennsylvania (USA) in order to measure indicators of cold hardiness. 2. The supercooling point rose 2–4 °C with cold acclimation (3 °C) but this cha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::92550e64dab672e00d872b802f460f67
https://doi.org/10.1016/j.jtherbio.2004.12.006
https://doi.org/10.1016/j.jtherbio.2004.12.006
Autor:
Matt E Rice, Jack R. Layne
Publikováno v:
Canadian Journal of Zoology. 81:2061-2065
Freeze tolerance exists among a few species of terrestrially hibernating North American frogs such as the wood frog (Rana sylvatica) and the spring peeper (Pseudacris crucifer). We investigated jump distance and swimming speed of these two frog speci
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0dd8297317f6db2e85098a4692c424a4
https://doi.org/10.1139/z03-202
https://doi.org/10.1139/z03-202
Autor:
Deborah L Blakeley, Jack R. Layne
Publikováno v:
Journal of Insect Physiology. 48:1133-1137
Tissue ice content and post-freeze survival were documented for caterpillars of the arctiid moth Pyrrharctia isabella. Tissue ice content was inversely dependent on freeze temperature (-3 degrees C=24.4%, -6 degrees C=40.2%, -10 degrees C=48.7%) but
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::491c45601024457a974f2d26cf708716
https://doi.org/10.1016/s0022-1910(02)00206-8
https://doi.org/10.1016/s0022-1910(02)00206-8
Autor:
Jack R. Layne, Scott D. Kennedy
Publikováno v:
Journal of Thermal Biology. 27:167-173
(1) 1 H and 31 P NMR spectroscopy were used to measure high energy organophosphates (ATP and creative phosphate, CP) and to estimate intracellular pH in juvenile Rana sylvatica during freezes at –1.5°C lasting up to 7 d. (2) Frogs largely maintain
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::06c757951b972566634ddf0d690f8989
https://doi.org/10.1016/s0306-4565(01)00022-5
https://doi.org/10.1016/s0306-4565(01)00022-5
Autor:
Diane K. Kuharsky, Jack R. Layne
Publikováno v:
Environmental Entomology. 30:12-16
Freeze tolerance and enhanced supercooling ability (freeze avoidance) are distinct adaptations in insects facilitating survival of subfreezing temperatures. It has been suggested that freeze tolerance has advantages over freeze avoidance with respect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::48fa241885a8af63601b39884899814b
https://doi.org/10.1603/0046-225x-30.1.12
https://doi.org/10.1603/0046-225x-30.1.12
Autor:
Jack R. Layne
Publikováno v:
Copeia. 2000:879-882
Freeze-tolerant frogs experience marked changes in their cellular chemistry as a result of internal freezing, forcing them to incur metabolic costs that are likely remedied upon thawing. This study measured levels of O2 consumption in Rana sylvatica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::82f6a8cc9822c610144a302d3470fdc8
https://doi.org/10.1643/0045-8511(2000)000[0879:pocitw]2.0.co
https://doi.org/10.1643/0045-8511(2000)000[0879:pocitw]2.0.co