Nonlinear effects of aqueous calcium concentration on antipredator response in Daphnia

Nonlinear effects of aqueous calcium concentration on antipredator response in Daphnia Hydrobiologia https://doi.org/10.1007/s10750-018-3640-x PRIMARY RESEARCH PAPER Nonlinear effects of aqueous calcium concentration on antipredator response in Daphnia . . Amelia R. Cox Shelley E. Arnott Howard P. Riessen Received: 16 March 2018 / Revised: 3 May 2018 / Accepted: 4 May 2018 Springer International Publishing AG, part of Springer Nature 2018 Abstract Calcium decline is an emerging environ- Daphnia in both 0.3 and 2.3 mg Ca/l had stronger mental concern for thousands of soft-water lakes. neck spine responses and larger reproductive delays Daphnia, an important freshwater herbivore, has than Daphnia in 1.2 mg Ca/l. Our results suggest that reduced reproduction, a weaker, less-rigid carapace, as lake calcium concentrations continue to fall, and decreased survival under low aqueous calcium Daphnia populations will respond in complex, non- concentrations, but there has been little attention to linear ways. study how calcium decline will influence predator– prey relationships. We conducted a mesocosm exper- Keywords Chaoborus  Zooplankton iment to determine the joint effects of calcium Morphological defenses  Kairomones  Species concentration (0.3, 1.2, and 2.3 mg/l) and kairomones interactions  Phenotypic plasticity from Chaoborus americanus, a ubiquitous inverte- brate predator, on Daphnia minnehaha populations. In Introduction the presence of Chaoborus kairomones, chemical signals http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Hydrobiologia Springer Journals

Nonlinear effects of aqueous calcium concentration on antipredator response in Daphnia

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Publisher
Springer International Publishing
Copyright
Copyright © 2018 by Springer International Publishing AG, part of Springer Nature
Subject
Life Sciences; Freshwater & Marine Ecology; Ecology; Zoology
ISSN
0018-8158
eISSN
1573-5117
D.O.I.
10.1007/s10750-018-3640-x
Publisher site
See Article on Publisher Site

Abstract

Hydrobiologia https://doi.org/10.1007/s10750-018-3640-x PRIMARY RESEARCH PAPER Nonlinear effects of aqueous calcium concentration on antipredator response in Daphnia . . Amelia R. Cox Shelley E. Arnott Howard P. Riessen Received: 16 March 2018 / Revised: 3 May 2018 / Accepted: 4 May 2018 Springer International Publishing AG, part of Springer Nature 2018 Abstract Calcium decline is an emerging environ- Daphnia in both 0.3 and 2.3 mg Ca/l had stronger mental concern for thousands of soft-water lakes. neck spine responses and larger reproductive delays Daphnia, an important freshwater herbivore, has than Daphnia in 1.2 mg Ca/l. Our results suggest that reduced reproduction, a weaker, less-rigid carapace, as lake calcium concentrations continue to fall, and decreased survival under low aqueous calcium Daphnia populations will respond in complex, non- concentrations, but there has been little attention to linear ways. study how calcium decline will influence predator– prey relationships. We conducted a mesocosm exper- Keywords Chaoborus  Zooplankton iment to determine the joint effects of calcium Morphological defenses  Kairomones  Species concentration (0.3, 1.2, and 2.3 mg/l) and kairomones interactions  Phenotypic plasticity from Chaoborus americanus, a ubiquitous inverte- brate predator, on Daphnia minnehaha populations. In Introduction the presence of Chaoborus kairomones, chemical signals

Journal

HydrobiologiaSpringer Journals

Published: Jun 2, 2018

References

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