Results 51 to 60 of about 38,723 (312)

Genetic Variation and Hybridization in Evolutionary Radiations of Cichlid Fishes.

open access: yesAnnual Review of Animal Biosciences, 2020
Evolutionary radiations are responsible for much of the variation in biodiversity. Cichlid fishes are well known for spectacular evolutionary radiations, as they have repeatedly evolved into large and phenotypically diverse arrays of species.
H. Svardal, W. Salzburger, M. Malinsky
semanticscholar   +1 more source

Sensory Drive in Cichlid Speciation [PDF]

open access: yesThe 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

Ancestral Hybridization Facilitated Species Diversification in the Lake Malawi Cichlid Fish Adaptive Radiation

open access: yesbioRxiv, 2019
The adaptive radiation of cichlid fishes in East Afrian Lake Malawi encompasses over 500 species that are believed to have evolved within the last 800 thousand years from a common founder population.
H. Svardal   +8 more
semanticscholar   +1 more source

Gene expression dynamics during rapid organismal diversification in African cichlid fishes

open access: yesNature Ecology & Evolution, 2020
Changes in gene expression play a fundamental role in phenotypic evolution. Transcriptome evolutionary dynamics have so far mainly been compared among distantly related species and remain largely unexplored during rapid organismal diversification, in ...
Athimed El Taher   +6 more
semanticscholar   +1 more source

The coincidence of ecological opportunity with hybridization explains rapid adaptive radiation in Lake Mweru cichlid fishes

open access: yesNature Communications, 2019
The process of adaptive radiation was classically hypothesized to require isolation of a lineage from its source (no gene flow) and from related species (no competition).
J. Meier   +9 more
semanticscholar   +1 more source

Subordinate Fish Mediate Aggressiveness Using Recent Contest Information

open access: yesFrontiers 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

Microbial co-occurrence networks of gut microbiota reveal community conservation and diet-associated shifts in cichlid fishes

open access: yesAnimal Microbiome, 2020
Background The extent to which deterministic rather than stochastic processes guide gut bacteria co-existence and ultimately their assembling into a community remains largely unknown.
J. Riera, L. Baldo
semanticscholar   +1 more source

Within-guild dietary discrimination from 3-D textural analysis of tooth microwear in insectivorous mammals [PDF]

open access: yes, 2013
Resource exploitation and competition for food are important selective pressures in animal evolution. A number of recent investigations have focused on linkages between diversification, trophic morphology and diet in bats, partly because their roosting ...
Crumpton, Nicholas   +4 more
core   +1 more source

Cytoarchitecture of a Cichlid Fish Telencephalon [PDF]

open access: yesBrain, Behavior and Evolution, 2009
Although the telencephalon of ray-finned fishes has garnered considerable attention from comparative neuroanatomists, detailed descriptions of telencephalic organization are available for only a few species. This necessarily limits our understanding of telencephalic evolution, particularly in light of the extraordinary diversity of ray-finned fishes ...
Sabrina S, Burmeister   +2 more
openaire   +2 more sources

Threatened fishes of the world: Coptodon walteri (Thys van den Audenaerde 1968) (Perciformes: Cichlidae)

open access: yesCroatian 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
doaj   +1 more source

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