Natural Selection for Grazer Resistance to Toxic Cyanobacteria: Evolution of Phenotypic Plasticity?

Hairston, Nelson G.; Holtmeier, Cami L.; Lampert, Winfried; Weider, Lawrence J.; Post, David M.; Fischer, Janet M.; Cáceres, Carla E.; Fox, Jennifer; Gaedke, Ursula

doi:10.1554/0014-3820(2001)055[2203:nsfgrt]2.0.co;2

Cited by 71 publications

(91 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Given that toxic cyanobacteria usually result in grazer death, intrinsic rate of population increase would be a better proxy of fitness than juvenile growth rate. In addition to integrating survival and fecundity, intrinsic rate of population increase and population growth rate in this study had longer incubation time than juvenile growth rate in two previous studies (Hairston et al ; Sarnelle and Wilson ). Intrinsic rate of population increases and population growth rate would capture more of the underlying variation in fitness than juvenile growth rate.…”

Section: Discussionmentioning

confidence: 67%

“…Net reproductive rate ( R 0 ) was determined by the equation: R 0 = Σ l x m x . A tolerance index ( T ) of each clone to dietary cyanobacteria was calculated as the relative change in intrinsic rate of population increase on poor food ( r poor ) compared with that on good food ( r good ): T = r poor / r good , which is similar to a previous definition (Hairston et al ). A higher value of this index indicates more tolerance.…”

Section: Methodsmentioning

confidence: 99%

“…Interestingly, long‐term exposures to cyanobacteria not only increase the ability of D. galeata to deal with cyanobacteria but also enhance the performance on high‐quality algae (Hairston et al ). Growth difference of a grazer fed two distinct diets is a type of phenotypic plasticity (Scheiner ).…”

mentioning

confidence: 99%

“…In the context of cyanobacterial blooms, the zooplankton genotype for reduced phenotypic plasticity may have a selective advantage as it would minimize fitness loss. However, only one study has reported the evolution of phenotypic plasticity in D. galeata to deal with toxic cyanobacteria via a general increase in zooplankton performance in both the presence and absence of cyanobacteria (Hairston et al ).…”

mentioning

confidence: 99%

“…We tested the presence of local adaptation to toxic cyanobacteria in zooplankton by exploring the correlation between zooplankton tolerance and cyanobacterial prevalence across several separate habitats (Blanquart et al ). We also investigated whether the evolution of phenotypic plasticity can contribute to grazer adaptation to dietary cyanobacteria (Hairston et al ).…”

mentioning

confidence: 99%

See 4 more Smart Citations

Microgeographic adaptation to toxic cyanobacteria in two aquatic grazers

Jiang

Liang

Chen

et al. 2015

Limnology & Oceanography

View full text Add to dashboard Cite

The hypothesis that zooplankton display local adaptations to toxic cyanobacteria was tested by investigating the performance of 24 clones from six populations of the large-bodied Daphnia pulex and 13 clones from four populations of the small-bodied Chydorus sphaericus. They were fed a pure nutritious green alga Chlorella pyrenoidosa (good food) and a mixed diet with a toxic cyanobacterium Microcystis aeruginosa (poor food). The grazer performances feeding on the poor food significantly differed among their populations over a small geographic scale (7-10 km for D. pulex and 15-20 km for C. sphaericus). Both the absolute tolerance (performance on poor food) and relative tolerance (performance on poor food relative to good food) to toxic M. aeruginosa were enhanced with increasing microcystin concentrations in the sediments and finally reached the maximum values. Additionally, the significant food 3 clone interactions indicated that phenotypic plasticity in response to toxic cyanobacteria had a genetic basis in two grazers. The significant food 3 population interactions and correlations between growth plasticity and microcystin concentrations indicated that this phenotypic plasticity evolved across grazer populations. The reduced plasticity was evidenced by both the reduced slope of reaction norms and the enhanced mean performance for both diets. D. pulex had more evolutionary potential for the reduced plasticity than C. sphaericus. These results suggest that zooplankton populations developed evolutionary tolerance to toxic cyanobacteria on a microgeographic level.

show abstract

Section: Discussionmentioning

confidence: 67%

Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

See 3 more Smart Citations

Microgeographic adaptation to toxic cyanobacteria in two aquatic grazers

Jiang

Liang

Chen

et al. 2015

Limnology & Oceanography

View full text Add to dashboard Cite

show abstract

Phenotypic plasticity in life‐history traits of Daphnia galeata in response to temperature – a comparison across clonal lineages separated in time

Henning-Lucass

Cordellier

Streit

et al. 2016

Ecology and Evolution

View full text Add to dashboard Cite

Climatic changes are projected to result in rapid adaptive events with considerable phenotypic shifts. In order to reconstruct the impact of increased mean water temperatures during past decades and to reveal possible thermal micro‐evolution, we applied a resurrection ecology approach using dormant eggs of the freshwater keystone species Daphnia galeata. To this end, we compared the adaptive response of D. galeata clones from Lake Constance of two different time periods, 1965–1974 (“historical”) versus 2000–2009 (“recent”), to experimentally increased temperature regimes. In order to distinguish between genetic versus environmentally induced effects, we performed a common garden experiment in a flow‐through system and measured variation in life‐history traits. Experimental thermal regimes were chosen according to natural temperature conditions during the reproductive period of D. galeata in Central European lakes, with one additional temperature regime exceeding the currently observable maximum (+2°C). Increased water temperatures were shown to significantly affect measured life‐history traits, and significant “temperature × clonal age” interactions were revealed. Compared to historical clones, recent clonal lineages exhibited a shorter time to first reproduction and a higher survival rate, which may suggest temperature‐driven micro‐evolution over time but does not allow an explicit conclusion on the adaptive nature of such responses.

show abstract

Extinction hazards in experimental Daphnia magna populations: effects of genotype diversity and environmental variation

Robinson

Wares

Drake

2012

Ecology and Evolution

View full text Add to dashboard Cite

Extinction is ubiquitous in natural systems and the ultimate fate of all biological populations. However, the factors that contribute to population extinction are still poorly understood, particularly genetic diversity and composition. A laboratory experiment was conducted to examine the influences of environmental variation and genotype diversity on persistence in experimental Daphnia magna populations. Populations were initiated in two blocks with one, two, three, or six randomly selected and equally represented genotypes, fed and checked for extinction daily, and censused twice weekly over a period of 170 days. Our results show no evidence for an effect of the number of genotypes in a population on extinction hazard. Environmental variation had a strong effect on hazards in both experimental blocks, but the direction of the effect differed between blocks. In the first block, variable environments hastened extinction, while in the second block, hazards were reduced under variable food input. This occurred despite greater fluctuations in population size in variable environments in the second block of our experiment. Our results conflict with previous studies, where environmental variation consistently increased extinction risk. They are also at odds with previous studies in other systems that documented significant effects of genetic diversity on population persistence. We speculate that the lack of sexual reproduction, or the phenotypic similarity among our experimental lines, might underlie the lack of a significant effect of genotype diversity in our study.

show abstract

Natural Selection for Grazer Resistance to Toxic Cyanobacteria: Evolution of Phenotypic Plasticity?

Cited by 71 publications

References 34 publications

Microgeographic adaptation to toxic cyanobacteria in two aquatic grazers

Microgeographic adaptation to toxic cyanobacteria in two aquatic grazers

Phenotypic plasticity in life‐history traits of Daphnia galeata in response to temperature – a comparison across clonal lineages separated in time

Extinction hazards in experimental Daphnia magna populations: effects of genotype diversity and environmental variation

Contact Info

Product

Resources

About