Advanced

Inter- and intraspecific trait compensation of defence mechanisms in freshwater snails

Rundle, Simon D. and Brönmark, Christer LU (2001) In Royal Society of London. Proceedings B. Biological Sciences 268(1475). p.1463-1468
Abstract
Trait compensation occurs when mechanically independent adaptations are negatively correlated. Here, we report the first study to demonstrate trait compensation in predator-defence adaptations across several species. Freshwater pulmonate snails exposed experimentally to predation chemical cues from fishes and crushed conspecifics showed clear interspecific differences in their behavioural avoidance responses, which were negatively correlated with shell crush resistance. The type of avoidance response varied between species: thin-shelled species (Lymnaea stagnalis and Physa fontinalis) moved to the water-line or out of the water, while those with thick shells moved under cover or showed a mixed response. There were also intraspecific... (More)
Trait compensation occurs when mechanically independent adaptations are negatively correlated. Here, we report the first study to demonstrate trait compensation in predator-defence adaptations across several species. Freshwater pulmonate snails exposed experimentally to predation chemical cues from fishes and crushed conspecifics showed clear interspecific differences in their behavioural avoidance responses, which were negatively correlated with shell crush resistance. The type of avoidance response varied between species: thin-shelled species (Lymnaea stagnalis and Physa fontinalis) moved to the water-line or out of the water, while those with thick shells moved under cover or showed a mixed response. There were also intraspecific size-linked differences, with an ontogenetic increase in shell strength accompanied by a decrease in behavioural avoidance. Such trait compensation in response to predation has important implications for interspecific interactions and food-web dynamics. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Royal Society of London. Proceedings B. Biological Sciences
volume
268
issue
1475
pages
1463 - 1468
publisher
Royal Society
external identifiers
  • wos:000170003600005
  • scopus:0034917792
ISSN
1471-2954
DOI
10.1098/rspb.2001.1682
language
English
LU publication?
yes
id
cff6be70-4e20-432a-a404-a40081086439 (old id 131492)
date added to LUP
2007-06-29 07:31:03
date last changed
2018-03-04 04:19:23
@article{cff6be70-4e20-432a-a404-a40081086439,
  abstract     = {Trait compensation occurs when mechanically independent adaptations are negatively correlated. Here, we report the first study to demonstrate trait compensation in predator-defence adaptations across several species. Freshwater pulmonate snails exposed experimentally to predation chemical cues from fishes and crushed conspecifics showed clear interspecific differences in their behavioural avoidance responses, which were negatively correlated with shell crush resistance. The type of avoidance response varied between species: thin-shelled species (Lymnaea stagnalis and Physa fontinalis) moved to the water-line or out of the water, while those with thick shells moved under cover or showed a mixed response. There were also intraspecific size-linked differences, with an ontogenetic increase in shell strength accompanied by a decrease in behavioural avoidance. Such trait compensation in response to predation has important implications for interspecific interactions and food-web dynamics.},
  author       = {Rundle, Simon D. and Brönmark, Christer},
  issn         = {1471-2954},
  language     = {eng},
  number       = {1475},
  pages        = {1463--1468},
  publisher    = {Royal Society},
  series       = {Royal Society of London. Proceedings B. Biological Sciences},
  title        = {Inter- and intraspecific trait compensation of defence mechanisms in freshwater snails},
  url          = {http://dx.doi.org/10.1098/rspb.2001.1682},
  volume       = {268},
  year         = {2001},
}