Results 31 to 40 of about 31,138 (282)
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
openaire +2 more sources
Predator avoidance in extremophile fish [PDF]
, 2013 Extreme habitats are often characterized by reduced predation pressures, thus representing refuges for the inhabiting species. The present study was designed to investigate predator avoidance of extremophile populations of Poecilia mexicana and P ...
Arias-Rodriguez, Lenin +7 more
core +2 more sources
Ecology and Evolution, 2021 Cichlids inhabiting the Great Lakes of Africa have radiated extremely rapidly, with Lake Malaŵi harboring some 850 species. This rapid radiation may be linked to the diversity in behaviors, sexual selection, and phenotypic plasticity.
Adrianus F. Konings +2 more
doaj +1 more source
Evolutionary ecology of opsin gene sequence, expression and repertoire. [PDF]
, 2017 Linking molecular evolution to biological function is a long-standing challenge in evolutionary biology. Some of the best examples of this involve opsins, the genes that encode the molecular basis of light reception.
Owens, Gregory L, Rennison, Diana J
core +1 more source
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
doaj +1 more source
The Midas cichlid species complex: incipient sympatric speciation in Nicaraguan cichlid fishes? [PDF]
Molecular Ecology, 2004 AbstractSympatric speciation is a contentious concept, although theoretical models as well as empirical evidence support its relevance in evolutionary biology. The Midas cichlid species complex (Amphilophus citrinellus,labiatus,zaliosus) from several crater lakes in Nicaragua fits several of the key characteristics of a sympatric speciation model.
Barluenga, Marta, Meyer, Axel
openaire +3 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
doaj +1 more source
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
doaj +1 more source
Produce Male Cichlids Only [PDF]
Biomedical Journal of Scientific & Technical Research, 2021 The Nile tilapia is one of the most important fresh water in world aquaculture [1] it is wildly cultured in many trobical and sub tribical countries of the world [2] the major concern for tilapia aquaculture is excessive reproduction and results small size of fish produced...
openaire +1 more source
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
doaj +1 more source