Predator-Induced Phenotypic Variation in the Pattern of Growth and Reproduction in Daphnia hyalina (Crustacea: Cladocera)

Stibor, Herwig; Lüning, Julia

doi:10.2307/2390117

Cited by 138 publications

(144 citation statements)

References 33 publications

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“…In our study the juvenile growth rate was closely linked to body size at first reproduction (ln g 5 0.74 [ln weight] 2 2.49; R 2 5 0.59, p , 0.0001); see also Hairston et al (2001). Since body size is positively related to competitive ability (Gliwicz 1990) and resistance to gape-limited invertebrate predators (Stibor and Lü ning 1994), the juvenile growth rate g is a good approximation of fitness in the absence of fish. As larger individuals are more vulnerable to visually oriented predators (Brooks and Dodson 1965), the intrinsic rate of population increase r, calculated on the basis of fecundity at first reproduction, may be a better predictor of fitness in the presence of fish.…”

Section: Discussionmentioning

confidence: 51%

Biochemical food quality effects on a Daphnia hybrid complex

Brzeziński¹,

Elert

2007

Limnology & Oceanography

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Correlative field studies have shown that the food quality of natural seston for Daphnia is highly correlated with the content of eicosapentaenoic acid (EPA), indicating that the growth of Daphnia in nature is at least seasonally limited by a low availability of this polyunsaturated fatty acid. Here we test the hypothesis that a putative limitation due to limited availability of EPA in natural seston should lead to genetic adaptation in physiological traits reflected in genotype-dependent differences in the ability of sympatric clones of Daphnia to cope with these shortages. We further test if this adaptation to the low availability of EPA provides another explanation for the coexistence of hybrids with their parental taxa. Standardized growth experiments were performed with and without dietary EPA using clones of three taxa from the Daphnia longispina complex: Daphnia galeata, Daphnia hyalina, and their interspecific hybrids. Fitness was estimated from juvenile somatic growth rates, g, and from intrinsic population growth rates, r. There was marked interclonal variability in the susceptibilities of g and r to the absence of EPA from the food, with considerable intraspecific variability. At the taxon level, we noted differences in susceptibility to EPA limitation with regard to the intrinsic rate of population increase r, which demonstrates that the availability of EPA affects the relative fitness of hybrids, but not of the parental species. On average, hybrids seemed less susceptible to the absence of EPA than do parental species. Environmental heterogeneity driven by EPA-mediated changes in the quality of food may in consequence contribute to the maintenance of genetic diversity in Daphnia and may be a reason for the temporal dominance of hybrids.

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Section: Discussionmentioning

confidence: 51%

Biochemical food quality effects on a Daphnia hybrid complex

Brzeziński¹,

Elert

2007

Limnology & Oceanography

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“…Contrary to previous work, we also found a fitness cost in terms of the intrinsic rate of increase. Several previous studies have reported a greater relative allocation (similar absolute allocation) to reproduction in fish-kairomone-induced Daphnia compared to noninduced animals (Stibor 1992;Weider and Pijanowska 1993;Stibor and Lüning 1994), as well as a shift to earlier reproduction (Stibor 1992;Reede and Ringelberg 1995). These results indicate that fish-kairomone-induced animals may often have a higher intrinsic rate of increase than noninduced animals (e.g., Reede and Ringelberg 1995).…”

Section: Discussionmentioning

confidence: 87%

“…In our experiment, however, the induced lines were preadapted for one generation to the presence of fish kairomones, because we studied the second generation of induced animals (i.e., animals born from mothers that were already cultured in the presence of fish chemicals), whereas other studies considered the first generation of induced animals (Weider and Pijanowska 1993;Stibor and Lüning 1994;Reede and Ringelberg 1995). (Stibor [1992] also considered the second generation but only reported size at maturity for this generation.) This different approach may explain the discrepancy between our results and previous studies.…”

Section: Discussionmentioning

confidence: 99%

Depth selection behavior, fish kairomones, and the life histories of Daphnia hyalina × galeata hybrid clones

Meester

Weider

1999

Limnology & Oceanography

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We studied life-history characteristics of 22 genetically distinct Daphnia hyalina ϫ galeata clonal lineages isolated from samples taken at different depths in the Schöhsee Lake (Germany) in the presence and absence of fish kairomones. Substantial genetic variability was observed for all traits investigated. The presence of fish kairomones had a significant effect on all traits except relative length of the tail spine and age at maturity. All genotypes (clones) had a significantly smaller size at maturity and produced smaller offspring in the presence of fish kairomones, an observation that is consistent with the hypothesis of an adaptive response. Overall, reproductive output was less for fish-induced animals, but the effect was relatively small for the size of the first clutch and for the intrinsic rate of increase compared to the differences observed for size of the second and subsequent clutches. Adult body size was related to habitat selection behavior. Clones established from animals that were caught in the epilimnion during the day and early in the evening (termed ''risk-tolerant'' [RT] depth selection behavior) were found to be smaller, both in the absence and presence of fish kairomones, than clones isolated from the hypolimnion (termed ''risk-averse'' [RA] depth selection behavior). This relationship suggests a coadaptation between size-related lifehistory traits and habitat selection (depth selection) in zooplankton. There were no significant differences in the shifts in life-history characteristics between clones exhibiting RT and RA depth selection behavior in response to the presence of fish kairomones.

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“…in addition, it is known that the allelochemicals of Hydra are considered as allomones where the chemical substances released by the predator cause a negative effect on prey, perhaps due to toxic characteristics, without necessarily causing a change in the morphology nor affecting the predator itself (Sher et al, 2005). macháček (1991) and Stibor and Lüning (1994) suggest that a reduction, due to allelochemicals from predators, in growth rates could favor reproduction. We observed that allelochemicals from Hydra affected both survivorship and reproduction of D. cf.…”

Section: Discussionmentioning

confidence: 99%

Effects of predation by Hydra (Cnidaria) on cladocerans (Crustacea: Cladocera)

2016

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Planktonic cladocerans have evolved different strategies to avoid predation from vertebrates; these include changes in morphology, behavior, physiology, and/or life-history traits. However, littoral cladocerans are better adapted to avoid invertebrate predation particularly from insect larvae by evolving morphological and physiological adaptations. Nevertheless, this has not been proven for some littoral predators such as Hydra. In this study, we provide quantitative data on how Hydra affects its zooplankton prey. We studied the predation behavior on Alona glabra, Ceridodaphnia dubia, Daphnia pulex, Daphnia cf. mendotae, Diaphanosoma birgei, Macrothrix triserialis, Moina macrocopa, Pleuroxus aduncus, Scapholeberis kingi, Simocephalus vetulus, Elaphoidella grandidieri, Brachionus rubens and Euchlanis dilatata. We also tested the indirect effect of allelochemicals from Hydra on the demography of Daphnia cf. mendotae. Littoral cladocerans are specially adapted to resist nematocyst injection and discharge of toxic substances from Hydra. A significant decrease in the population growth rate from 0.21 to 0.125 d-1 was observed at densities of 2 ind. ml-1. The role of carapace thickness as an adaptive strategy of littoral cladocerans against Hydra predation is discussed.

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Predator-Induced Phenotypic Variation in the Pattern of Growth and Reproduction in Daphnia hyalina (Crustacea: Cladocera)

Cited by 138 publications

References 33 publications

Biochemical food quality effects on a Daphnia hybrid complex

Biochemical food quality effects on a Daphnia hybrid complex

Depth selection behavior, fish kairomones, and the life histories of Daphnia hyalina × galeata hybrid clones

Effects of predation by Hydra (Cnidaria) on cladocerans (Crustacea: Cladocera)

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