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Predator-Induced Life-History Shifts in a Freshwater Snail
Abstract
The snail Physella virgata virgata, a widely distributed freshwater pulmonate, was observed to change its life-history characteristics in the presence of the crayfish Orconectes virilis in spring-fed Oklahoma streams. These changes were apparently initiated by a water-borne cue released when crayfish fed on conspecific snails. In the presence of the cue, snails exhibited rapid growth rates and little reproduction until they reached a size of about 10 mm after 8 months. In the absence of the cue, snails typically grew to about 4 mm (3.5 months) and then began reproduction. The chemically inducible shift indicates that the life histories of these snails are phenotypically plastic. By increasing the variance associated with size and age of maturity, prey may increase the likelihood of coexisting with seasonal predators.
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Cites
Life-History Tactics: A Review of the Ideas
Stearns, S. C. (1976) · The Quarterly Review of Biology · doi:10.1086/409052 · Cited by 3,557
Cited by
The Role of Macroinvertebrates in Stream Ecosystem Function
Wallace, J. B., & Webster, J. R. (1996) · Annual Review of Entomology · doi:10.1146/annurev.en.41.010196.000555 · Cited by 1,163
Predation risk induces changes in nest-site selection and clutch size in the Siberian jay
Eggers, S., Griesser, M., Nystrand, M., & Ekman, J. (2006) · Proceedings of the Royal Society B: Biological Sciences · doi:10.1098/rspb.2005.3373 · Cited by 386
Day, T., & Rowe, L. (2002) · The American Naturalist · doi:10.1086/338989 · Cited by 344
Sublethal consequences of stream-dwelling predatory stoneflies on mayfly growth and fecundity
Peckarsky, B. L., Cowan, C. A., Penton, M. A., & Anderson, C. (1993) · Ecology · doi:10.2307/1939941 · Cited by 280
Individual Behavior and Higher-Order Species Interactions
Werner, E. E. (1992) · The American Naturalist · doi:10.1086/285395 · Cited by 226
Metadata
- Authors
- Crowl, T. A., & Covich, A. P.
- Venue
- Science
- Published
- 1990-02-23
- Volume
- 247
- Issue
- 4945
- Pages
- 949-951
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2091543905
- Cited by
- 576
- References
- 1
- FWCI
- 33.39
- Type
- journal article
- Language
- en
- Open access
- closed
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
