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Showing 1 to 16 of 16 for “"bet-hedging"”.
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Bet- hedging reproduction strategies in the massive Caribbean coral Favia fragum
Bet- hedging has long been recognised as an adaptive mechanism in unpredictable environments, yet is often overlooked as an evolutionary strategy in corals to adapt to environmental conditions associated with climate change. Most environments vary spatially and temporally over the lifespan of …
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Life history strategies in variable environments: Demography, delayed germination and bet-hedging in a desert annual Plantago
… A pattern of delayed germination consistent with bet-hedging as an adaptation to temporal variability in reproductive success arose in the field, in part, because frequencies of wet and dry germination conditions differed among populations. Phenotypic plasticity in germination response for seeds …
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Birth order as a source of diversification in spring phenology and its potential effects on performance in greater duckweed, Spirodela polyrhiza
… has demonstrated that potential diversification bet hedging in the phenology of the production of turions is generated by birth order within clones. The timing of turion reactivation the following spring may also have profound fitness consequences due to the risk of the thaw and re-freezing of …
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The impacts of embryo development and asynchronous hatching on morphology, growth, and development of larval burbot (Lota lota).
… is a strategy used by other cod species as a bet-hedging strategy to ensure that some larvae are hatched in more advantageous conditions in a varying environment. Asynchronous hatching has been documented in burbot, but the extent of the period and the impacts that asynchrony has on the …
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Phenotypic heterogeneity and evolutionary games in microbial populations
… the surprising degree of phenotypic variability between individual cells in clonal microbial populations, even in identical environments. While some variation is an inevitable consequence of low numbers of regulatory molecules in cells, the magnitude of the variability is nevertheless an …
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Demography of a declining Dunlin (<i>Calidris alpina arcticola</i>): influences on adult survival and mate fidelity of an Arctic-breeding migratory shorebird
… to understand divorce in C. a. arcticola: the better option hypothesis, in which divorce improves reproductive success by obtaining a higher quality mate; the habitat mediated hypothesis, when divorce might occur if an opportunity exists to nest at a higher quality site than the prior breeding …
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Learning from Disorder and Noise in Physical Biology
… in gene expression that can lead to advantageous bet-hedging strategies, but can be difficult to characterize using a deterministic framework. Even at the organismal scale, germband extension (GBE) in <em>Drosophila melanogaster</em> embryos systematically elongates the epithelial tissue using …
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Evolutionary Origin and Maintenance of Sociality in the Small Carpenter Bees
… brood rearing seasons. Local weather varied between seasons but was not correlated with reproductive success. Severe parasitism resulted in low reproductive success and total nest failure in solitary nests. Social colonies had higher reproductive success and were never extirpated by …
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Monogeneans of the Southern Fiddler Ray, Trygonorrhina Fasciata (Rhinobatidae) in South Australia: an exceptional model to compare parasite life history traits, invasion strategies and host specificity.
… at 22ºC. Eggs of P. aptychotremae may have a ‘bet-hedging’ strategy. Some eggs hatch spontaneously and rhythmically in an LD12:12 regime during the last few hours of daylight but their low hatching success rate suggests that other eggs may require a different cue provided by the host. Larvae …
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Comparative embryology and muscle development of polyclad flatworms (Platyhelminthes: Rhabditophora)
… and hold the key to understand the relationship between development and evolution, knowledge of their embryonic development is still scarce and most of the work on spiralian development has focused on mollusks and annelids. In view of polyclad embryonic significance, a comparative study of their …
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Costs and benefits of host use by brood parasitic birds
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-04-12 without embargo terms
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Mojave Desert restoration: drought and facilitation influences on plant communities and soil seed banks in annual grass invaded shrublands
… and ecosystem function. Native annuals often use bet-hedging strategies like delayed germination to persist through unfavorable conditions. In contrast, invasive species like B. rubens lack a persistent seed bank, relying on early germination, rapid growth, and high reproductive output, allowing …
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A multi-scale exploration of the drivers and implications of germination strategy in Australian alpine plants
Alpine ecosystems are particularly sensitive to the effects of global warming because they are characterized by species adapted to low temperatures. Although adapted to low temperatures, alpine plants may still be capable of persisting under a changing climate and this will largely be dependent on …
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A multi-scale exploration of the drivers and implications of germination strategy in Australian alpine plants
Alpine ecosystems are particularly sensitive to the effects of global warming because they are characterized by species adapted to low temperatures. Although adapted to low temperatures, alpine plants may still be capable of persisting under a changing climate and this will largely be dependent on …
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On the coupling of noisy processes in biology to produce functional phenotypic variability
… model we show that a mutual inhibition loop between RpoS activity and growth rate is sufficient to capture the observed dynamics. We test our model by performing experimental perturbations and find good agreement between theory and experiment. Next, we demonstrate the functionality of this …
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Adaption an Nestprädation bei der Mönchsgrasmücke
… eine Prädatorengruppe fehlen. Die Prädationsrate beträgt im Mittel 50 %, ist vor Schlupf geringer als danach und nimmt dichteabhängig saisonal ab. Sie ist abhängig von der Einbettung einer Versuchsfläche in die Landschaft: Kleine, isolierte Flächen sind für Nester sicherer. Eichelhäher sind für 46 …