The effects of pond duration on the life history traits of an ephemeral pond crustacean, Eulimnadia texana

Marcus, Vivien; Weeks, Stephen C.

doi:10.1007/978-94-017-3177-5_24

Cited by 23 publications

(28 citation statements)

References 15 publications

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“…Overall, studies covering a larger number of populations along a gradient of hydrological stability are lacking. Finally, quantification of hydrological variation in study systems is typically limited to short-term observations of water presence (Mura 2001;De Block et al 2008) or indirect estimators such as depth or surface to volume ratio (Marcus and Weeks 1997). Since longterm observations are usually required to cover interand intra-annual variation in the number (inundation frequency) and the duration (hydroperiod) of inundations of temporary pools (Bauder 2005), short-term measurements probably do not allow to reliably characterise the selection regime.…”

Section: Introductionmentioning

confidence: 99%

Hatching phenology, life history and egg bank size of fairy shrimp Branchipodopsis spp. (Branchiopoda, Crustacea) in relation to the ephemerality of their rock pool habitat

2010

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In temporary aquatic habitats, permanence and the severe disturbance associated with desiccation are strong selective agents expected to lead to differentiation in life history strategies in populations experiencing different disturbance regimes. Besides optimal timing of hatching of dormant life stages, maturation and reproduction, pool inhabitants also benefit from the acquisition of reliable cues for the quality of the ambient environment. We investigated whether hatching patterns, life history characteristics and egg bank size of Branchipodopsis fairy shrimp (Branchiopoda, Anostraca) inhabiting a cluster of temporary rock pools in South Africa reflect variation in habitat stability and hatching cues. Long-term hydrological variation was used to select pools along a gradient of habitat stability. Initial conductivity was a good indicator for the length of inundations. No hatching occurred under elevated conductivities, which may present a mechanism to avoid abortive hatching. Egg bank size was unaffected by habitat size or habitat stability but instead was related to cover by a protective sheet of dry aquatic vegetation, which presumably counteracts egg bank erosion by wind when pools are dry. Life history but not hatching phenology reflected some aspects of habitat stability. Fairy shrimp populations in ephemeral pools started reproduction earlier than populations in more stable habitats. Additional common garden or transplant experiments, however, will be required to assess the relative importance of environmental and genetic components in explaining the observed variation and acquire more insight into the trade-offs that lie at the base of the evolution of life history strategies along the pond permanence gradient.

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Section: Introductionmentioning

confidence: 99%

Hatching phenology, life history and egg bank size of fairy shrimp Branchipodopsis spp. (Branchiopoda, Crustacea) in relation to the ephemerality of their rock pool habitat

2010

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“…Ephemeral pools, lasting from several days (Hathaway and Simovich, 1996) to several months (Mura, 1991(Mura, , 1997(Mura, , 2001Mura et al, 2003;Maffei et al, 2005), can be formed by snowmelt in spring (Daborn, 1975;Mura, 2001), seasonal river flooding (Eder and Hödl, 2002), artificial irrigation as in rice fields (Grygier et al, 2002) and seasonal heavy rainfall (as in this study). The duration between inundation and drying in temporary pools determines the life histories of inhabiting organisms (Hildrew, 1985;Marcus and Weeks, 1997;Beladjal et al, 2003), such as fairy shrimps. To achieve optimal reproductive success before habitat drying, fairy shrimps have evolved various strategies including fast growth and maturation rates, coupled with the production of dormant eggs to endure unfavorable periods (Hildrew, 1985;Hamer and Appleton, 1991).…”

Section: Introductionmentioning

confidence: 99%

Indeterminate Growth of the Fairy Shrimp, Branchinella (Branchinellites) kugenumaensis (Branchiopoda: Anostraca) in an Unpredictable Ephemeral Pool

Huang

Wang

Huang

et al. 2010

Journal of Crustacean Biology

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“…Mortality risk can be high in these habitats due to desiccation and predation by odonates, beetles and hemipterans (Wilbur, 1987). Animals found in that habitatsmostly macroinvertebrate and amphibian larvae-show adaptations to deal with that particular hydrological regime, such as rapid colonization and growth rate, high phenotypic plasticity (Wilbur, 1987;Marcus & Weeks, 1997;Relyea & Werner, 2000;Mura et al, 2003) or the presence of a resistance phase in their life cycle (e.g. diapause).…”

Section: Introductionmentioning

confidence: 99%

Diet of four annual killifishes: an intra and interspecific comparison

et al. 2009

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We examined the diet of 4 annual fishes, Austrolebias viarius, Austrolebias cheradophilus, Austrolebias luteoflammulatus and Cynopoecilus melanotaenia inhabiting temporal ponds of southeastern Uruguay, by analysis of stomach contents. Fishes were captured from fifty ephemeral ponds of Castillos Lagoon basin, in the region of the Humedales del Este. We identified 13099 individual prey items extracted from 669 stomachs of the four captured species. In the studied system, annual killifishes represents the most abundant and conspicuous top predators. Killifishes are generalist key predators at the ephemeral ponds of the studied system, consuming mostly aquatic items. Zooplancton represented the bulk of the diet in the four analyzed species, followed by eggs, algae and diatoms. Insects are the next group in prey number, as follows: Diptera larvae (especially Chironomidae and Cullicidae), Ephemeroptera (especially Betidae), and coleopteran larvae (especially Dytiscidae). Acari are also important prey in number. The four fish species differ in diet composition and in diet richness. A general pattern of differences in diet richness among killifish species and demographic groups could be related to variations in body sizes. As top predators annual killifishes are an important component of the temporal pond ecosystems. Understanding the natural history of this species and their communities is necessary in order to conserve them. Nós examinamos a dieta de 4 peixes anuais, Austrolebias viarius, Austrolebias cheradophilus, Austrolebias luteoflammulatuse Cynopoecilus melanotaenia, que habitam poças temporárias do sudeste do Uruguai, através da análise de conteúdo estomacal. Os peixes foram capturados em cinco poças temporárias da bacia da lagoa Castillos, na região de Humedales del Este. Nós identificamos 13099 itens de presas estraídos de 669 estômagos das quatro espécies. No sistema estudado, peixes anuais representam os predadores de topo mais abundantes e conspícuos. Os rivulídeos são predadores generalistas nas poças temporaries estudadas, consumindo principalmente itens aquáticos. Zooplâncton representou o item principal da dieta para as quatro espécies, seguido de ovos, algas e diatomáceas. Insetos compoem o próximo grupo em número de presas, como segue: larvas de Diptera (especialmente Chironomidae e Cullicidae), Ephemeroptera (especialmente Betidae), e larvas de Coleoptera (especialmente Dytiscidae). Ácaros foram também presas importantes em número. As quatro espécies de peixes diferem na composição e riqueza das dietas. O padrão geral de diferenciação da dieta entre espécies e grupos demográficos de rivulídeos pode ser relacionado à variação do tamanho corporal. Como predadores de topo, os rivulídeos anuais são um componente importante dos ecossistemas de poças temporárias. A compreensão da história natural destas espécies e de suas comunidades é necessária a sua conservação.

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The effects of pond duration on the life history traits of an ephemeral pond crustacean, Eulimnadia texana

Cited by 23 publications

References 15 publications

Hatching phenology, life history and egg bank size of fairy shrimp Branchipodopsis spp. (Branchiopoda, Crustacea) in relation to the ephemerality of their rock pool habitat

Hatching phenology, life history and egg bank size of fairy shrimp Branchipodopsis spp. (Branchiopoda, Crustacea) in relation to the ephemerality of their rock pool habitat

Indeterminate Growth of the Fairy Shrimp, Branchinella (Branchinellites) kugenumaensis (Branchiopoda: Anostraca) in an Unpredictable Ephemeral Pool

Diet of four annual killifishes: an intra and interspecific comparison

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