Results 21 to 30 of about 5,636 (182)
Introduced predator elicits deficient brood defence behaviour in a crater lake fish. [PDF]
PLoS ONE, 2012 Introduced species represent one of the most serious global threats to biodiversity. In this field-based study, we assessed behavioural responses of brood tending cichlid fish to an invasive predator of their offspring.
Topi K Lehtonen +2 more
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Hybrid Breakdown in Cichlid Fish
PLOS ONE, 2015 Studies from a wide diversity of taxa have shown a negative relationship between genetic compatibility and the divergence time of hybridizing genomes. Theory predicts the main breakdown of fitness to happen after the F1 hybrid generation, when heterosis subsides and recessive allelic (Dobzhansky-Muller) incompatibilities are increasingly unmasked.
Stelkens, R., Schmid, C., Seehausen, O.
openaire +6 more sources
Gene coexpression networks reveal molecular interactions underlying cichlid jaw modularity
BMC Ecology and Evolution, 2021 Background The oral and pharyngeal jaw of cichlid fishes are a classic example of evolutionary modularity as their functional decoupling boosted trophic diversification and contributed to the success of cichlid adaptive radiations. Most studies until now
Pooja Singh +2 more
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Sensory Drive in Cichlid Speciation [PDF]
The American Naturalist, 2006 The role of selection in speciation is a central yet poorly understood problem in evolutionary biology. The rapid radiations of extremely colorful cichlid fish in African lakes have fueled the hypothesis that sexual selection can drive species divergence without geographical isolation.
Martine E, Maan +3 more
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Croatian Journal of Fisheries, 2016 Coptodon walteri Thys van den Audenaerde 1968, an endemic cichlid of Ivory Coast and Liberia, is assessed as Near Threatened due to fishing pressure and loss of habitats, and aquatic pollution as a result of extensive clandestine gold mining in the bed ...
Konan Felix Koffi +4 more
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Early stages of sympatric homoploid hybrid speciation in crater lake cichlid fishes
Nature Communications, 2022 Here, the authors present a rare example of sympatric homoploid hybrid speciation, without ploidy changes, in the Midas cichlid fishes from Nicaragua. Midas cichlid hybrids occupy a different ecological niche, likely facilitated by body shape adaptations.
Melisa Olave +3 more
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Reduced genetic diversity and the success of the invasive peacock bass (Cichliformes: Cichlidae)
Brazilian Journal of Biology, 2021 Several species of Cichla successfully colonized lakes and reservoirs of Brazil, since the 1960’s, causing serious damage to local wildlife. In this study, 135 peacock bass were collected in a reservoir complex in order to identify if they represented a ...
S. C. S. Luz +7 more
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Hematology in ornamental discus fish Symphysodon discus from Amazonian, Brazil [PDF]
Brazilian Journal of BiologySymphysodon discus is known in the world of aquariums for its market value, beauty, and behavior. However, more substantial information about its physiology and biology must be available, which can hinder its development and maintenance in breeding ...
M. W. S. Ribeiro +2 more
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Ecology and Evolution, 2023 Phenotypic plasticity enables development to produce multiple phenotypes in response to environmental conditions. Plasticity driven variation has been suggested to play a key role in adaptive divergence, and plasticity itself can evolve.
Kirsty McWhinnie +3 more
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Subordinate Fish Mediate Aggressiveness Using Recent Contest Information
Frontiers in Ecology and Evolution, 2021 Memorizing dominance relationships can help animals avoid unwinnable subsequent contests. However, when competitive ability changes over time—for example, as a function of condition—it may be adaptive to “forget” these dominance relationships and for ...
Takashi Hotta +5 more
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