Results 61 to 70 of about 17,678 (274)
Abstract Morphology has been a leading taxonomic guiding light to systematists for the last couple of hundred years. However, the genetic and – more recently – genomic revolution have produced numerous demonstrations of erroneous classifications that were based on labile morphological traits.
Elize Y. X. Ng+14 more
wiley +1 more source
The genomic substrate for adaptive radiation in African cichlid fish
Cichlid fishes are famous for large, diverse and replicated adaptive radiations in the Great Lakes of East Africa. To understand the molecular mechanisms underlying cichlid phenotypic diversity, we sequenced the genomes and transcriptomes of five ...
D. Brawand+74 more
semanticscholar +1 more source
Evolutionary dynamics of pre- and postzygotic reproductive isolation in cichlid fishes
Cichlid fishes are exceptionally species-rich, speciated at explosive rates and, hence, are a model system in speciation research. Yet, their reproductive isolating barriers have, so far, not been comprehensively studied.
Sina J. Rometsch+2 more
semanticscholar +1 more source
All examples of lake charr (Salvelinus namaycush) diversity occur within the largest, deepest lakes of North America (i.e. > 2000 km2). We report here Rush Lake (1.3 km2) as the first example of a small lake with two lake charr morphs (lean and huronicus). Morphology, diet, life history, and genetics were examined to demonstrate the existence of morphs
Louise Chavarie+9 more
wiley +1 more source
Cichlids: A Host of Opportunities for Evolutionary Parasitology [PDF]
Thanks to high species diversity and a broad range of speciation mechanisms, cichlid fishes represent a textbook model in evolutionary biology. They are also of substantial economic value. Despite this importance, cichlid parasites remain understudied, although some are more diverse than their hosts.
Antoine Pariselle+9 more
openaire +5 more sources
Hematology in ornamental discus fish Symphysodon discus from Amazonian, Brazil [PDF]
Symphysodon 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
doaj +1 more source
Interspecific hybridization can generate functional novelty in cichlid fish
The role of interspecific hybridization in evolution is still being debated. Interspecific hybridization has been suggested to facilitate the evolution of ecological novelty, and hence the invasion of new niches and adaptive radiation when ecological ...
O. Selz, O. Seehausen
semanticscholar +1 more source
The two toothed jaws of cichlid fishes provide textbook examples of convergent evolution. Tooth phenotypes such as enlarged molar-like teeth used to process hard-shelled molluscs have evolved numerous times independently during cichlid diversification ...
Nidal Karagic+3 more
semanticscholar +1 more source
Introduced predator elicits deficient brood defence behaviour in a crater lake fish. [PDF]
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
Noise-Induced Schooling of Fish [PDF]
We report on the dynamics of collective alignment in groups of the cichlid fish, Etroplus suratensis. Focusing on small-to-intermediate sized groups ($10
arxiv +1 more source