Supercooling ability in the house spider, Achaearanea tepidariorum: effect of field-collected and laboratory-reared prey

被引：0
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作者：
Kazuhiro Tanaka
机构：
[1] Institute of Low Temperature Science,
[2] Hokkaido University,undefined
[3] Sapporo 060-0819,undefined
[4] Hokkaido National Agricultural Experiment Station,undefined
[5] Sapporo 062-8555,undefined
[6] Present address: Ecological Laboratory,undefined
[7] Miyagi Gakuin Women's College,undefined
[8] Sendai,undefined
[9] Miyagi 981-8557,undefined
[10] e-mail: tanaka@mgu.ac.jp,undefined
[11] Tel.: +81-22-2776154,undefined
[12] Fax: +81-22-2776186,undefined
来源：
Naturwissenschaften | 2001年 / 88卷
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摘要：
The influence of prey animals on the supercooling ability of the house spider, Achaearanea tepidariorum, was studied by feeding spiders with field-collected and laboratory-cultured prey animals. Irrespective of the prey species supplied, spiders given field-collected prey had a higher supercooling point than those given laboratory-cultured counterparts. This means that (1) the field prey animals contained some efficient ice nucleators, whereas the laboratory animals were free from such substances and (2) the ice nucleators must be of external origin. Several lines of evidence also suggest that, under natural conditions, potential prey animals for the house spider are highly contaminated with ice nucleators.
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页码：431 / 433
页数：2
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