2023 Early Hearing Detection & Intervention Conference
March 5-7, 2023 • Cincinnati, OH
5/22/2019 | 9:15 AM - 9:30 AM | WIDESPREAD INTRASPECIFIC VARIATION IN RESPONSE TO PHOSPHORUS LIMITATION IN A NEW ZEALAND SNAIL | 253 AB
WIDESPREAD INTRASPECIFIC VARIATION IN RESPONSE TO PHOSPHORUS LIMITATION IN A NEW ZEALAND SNAIL
Similar to the variation predicted among species in response to phosphorus (P) limitation, variation within-species should also be widespread because of population differentiation and variation in ploidy level. Differences among populations in response to P limitation is predicted because of local adaptation to varying P availability. Variation among ploidy levels in response to P limitation is predicted because, relative to diploids, polyploids require more dietary P to replicate additional sets of chromosomes.
We report population, ploidy, and genetic-level variation in response to phosphorus limitation in a New Zealand freshwater snail (Potamopyrgus antipodarum) that occurs as diploid, triploid, or tetraploid and features significant genetic structure among populations. We show that lakes inhabited by P. antipodarum vary widely in P availability. We also present evidence that variation in P availability among lakes might drive some of the variation in sensitivity to P limitation that we observe in these snails.
- Phosphorous
- Population
- Life History
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Presenters/Authors
Amy Krist
(), University of Wyoming, krist@uwyo.edu;
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Maurine Neiman
(), University of Iowa, maurine-neiman@uiowa.edu;
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