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Hypoxic coma as a strategy to survive inundation in a salt-marsh inhabiting spider.
- Source :
-
Biology letters [Biol Lett] 2009 Aug 23; Vol. 5 (4), pp. 442-5. Date of Electronic Publication: 2009 May 01. - Publication Year :
- 2009
-
Abstract
- Spiders constitute a major arthropod group in regularly inundated habitats. Some species survive a flooding period under water. We compared survival during both submersion and a recovery period after submersion, in three stenotopic lycosids: two salt-marsh species Arctosa fulvolineata and Pardosa purbeckensis, and a forest spider Pardosa lugubris. Both activity and survival rates were determined under controlled laboratory conditions by individually surveying 120 females kept submerged in sea water. We found significant differences between the three species, with the two salt-marsh spiders exhibiting higher survival abilities. To our knowledge, this study reports for the first time the existence of a hypoxic coma caused by submersion, which is most pronounced in A. fulvolineata, the salt-marsh spider known to overcome tidal inundation under water. Its ability to fall into that coma can therefore be considered a physiological adaptation to its regularly inundated habitat.
Details
- Language :
- English
- ISSN :
- 1744-957X
- Volume :
- 5
- Issue :
- 4
- Database :
- MEDLINE
- Journal :
- Biology letters
- Publication Type :
- Academic Journal
- Accession number :
- 19411268
- Full Text :
- https://doi.org/10.1098/rsbl.2009.0127