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1 April 2015 Impact of elevated CO2 on growth, development, and reproduction of the wolf spider, Pardosa astrigera (Araneae: Lycosidae)
Ling Zuo, Cheng Chen, Ling Qi, Feng-Xiang Liu, Yue-li Yun, Yu Peng
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Abstract

The effects of elevated CO2 concentration on spiders were studied using third-instar spiderlings of the wolf spider Pardosa astrigera L. Koch 1878 in CO2 climate chambers with two different concentrations of CO2 (low, 370 ppm and high, 750 ppm). The food intake and total developmental period of spiderlings reared at high CO2 concentration increased significantly, and the body length and weight of adult spiders decreased compared to those in the low-CO2 group. The oviposition rate of female P. astrigera and the hatching rate of eggs did not differ between the high- and low-CO2 groups, but the number of egg sacs and the total number of eggs produced by females from the high-CO2 group decreased. These results suggest that elevated CO2 concentrations are harmful to the growth, development, and reproduction of P. astrigera.

The American Arachnological Society
Ling Zuo, Cheng Chen, Ling Qi, Feng-Xiang Liu, Yue-li Yun, and Yu Peng "Impact of elevated CO2 on growth, development, and reproduction of the wolf spider, Pardosa astrigera (Araneae: Lycosidae)," The Journal of Arachnology 43(1), 86-89, (1 April 2015). https://doi.org/10.1636/B14-29.1
Received: 3 May 2014; Published: 1 April 2015
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KEYWORDS
body length
body weight
oviposition rate
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