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The Evolution of Life Histories in Holo-anhydrobiotic Animals: A First Approach

Jönsson, K Ingemar LU (2005) In Integrative and Comparative Biology 45(5). p.764-770
Abstract
The life histories of holo-anhydrobiotic animals differ from those of all other organisms by a regular or irregular entrance into an ametabolic state induced by desiccation. Such ametabolic periods will arrest growth and reproduction completely and thus affect primary life history parameters dramatically. The selective forces and the genetic and physiological trade-offs acting on anhydrobiotic animals are to a large extent unknown. Assuming low growth rates and low juvenile to adult survival, general theoretical models on life history responses to stress predict that anhydrobiotic animals will be selected for a high degree of iteroparity, with low fecundity, large egg size, and low total reproductive investment. A high degree of... (More)
The life histories of holo-anhydrobiotic animals differ from those of all other organisms by a regular or irregular entrance into an ametabolic state induced by desiccation. Such ametabolic periods will arrest growth and reproduction completely and thus affect primary life history parameters dramatically. The selective forces and the genetic and physiological trade-offs acting on anhydrobiotic animals are to a large extent unknown. Assuming low growth rates and low juvenile to adult survival, general theoretical models on life history responses to stress predict that anhydrobiotic animals will be selected for a high degree of iteroparity, with low fecundity, large egg size, and low total reproductive investment. A high degree of variability in growth and reproduction should create a selective force in the same direction. Although basic empirical data on life history parameters are very scarce, available observations seem to be consistent with this prediction. (Less)
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author
organization
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type
Contribution to journal
publication status
published
subject
in
Integrative and Comparative Biology
volume
45
issue
5
pages
764 - 770
publisher
Oxford University Press
external identifiers
  • wos:000234240100012
  • scopus:30744440363
ISSN
1557-7023
language
English
LU publication?
yes
id
a1fee275-3c38-4a37-bbc8-ee074f52006b (old id 155547)
alternative location
http://www.bioone.org/archive/1540-7063/45/5/pdf/i1540-7063-45-5-764.pdf
date added to LUP
2007-06-25 14:46:41
date last changed
2017-01-01 07:17:11
@article{a1fee275-3c38-4a37-bbc8-ee074f52006b,
  abstract     = {The life histories of holo-anhydrobiotic animals differ from those of all other organisms by a regular or irregular entrance into an ametabolic state induced by desiccation. Such ametabolic periods will arrest growth and reproduction completely and thus affect primary life history parameters dramatically. The selective forces and the genetic and physiological trade-offs acting on anhydrobiotic animals are to a large extent unknown. Assuming low growth rates and low juvenile to adult survival, general theoretical models on life history responses to stress predict that anhydrobiotic animals will be selected for a high degree of iteroparity, with low fecundity, large egg size, and low total reproductive investment. A high degree of variability in growth and reproduction should create a selective force in the same direction. Although basic empirical data on life history parameters are very scarce, available observations seem to be consistent with this prediction.},
  author       = {Jönsson, K Ingemar},
  issn         = {1557-7023},
  language     = {eng},
  number       = {5},
  pages        = {764--770},
  publisher    = {Oxford University Press},
  series       = {Integrative and Comparative Biology},
  title        = {The Evolution of Life Histories in Holo-anhydrobiotic Animals: A First Approach},
  volume       = {45},
  year         = {2005},
}