Sentences with phrase «cichlid fish»

Konstanz evolutionary biologists working with Prof. Axel Meyer have now described parallel evolution of two closely related, but geographically isolated populations of cichlid fish in Nicaraguan crater lakes.

The East African cichlid fishes of Lake Malawi are ideal for investigating behavioral adaptation to environment, as within genera, fine - scale niche partitioning has resulted in sympatric sister species that live in definable microhabitats with distinct selection pressures.

When researchers placed African cichlid fish in a tank, the fish showed identical aggressive behavior whether their opponent was their reflection or another fish across a clear barrier, ramming and biting at both.

Fernald studies Astatotilapia burtoni, one of the hundreds of cichlid fish species inhabiting Lake Tanganyika in eastern Africa, because of the unique ways they have evolved over time.

Male cichlid fish battle for stretches of lake - bottom territory where females lay their eggs.

«Our study reveals a spectrum of methods that nature uses to allow organisms to adapt to different environments,» said senior author Kerstin Lindblad - Toh, Scientific Director of Vertebrate Genome Biology at the Broad Institute: «These mechanisms are likely to be also at work in humans and other vertebrates, and by focusing on the remarkably diverse cichlid fishes, we were able to study this process on a broad scale for the first time.»

The arrival of non-native fish can have catastrophic results, as demonstrated by the dramatic decline in Lake Nicaragua's cichlid fish population since the introduction of African tilapia in the 1980s.

«I don't necessarily care what the taxonomic rank would be of the units I'm studying,» says Hey, whose current research involves cichlid fish in Lake Malawi.

Genetic studies of cichlid fishes suggest that interspecies hybrids played a prominent role in their evolution.

When a male cichlid fish captures a piece of prime real estate, his gonads go wild.

The myriad of colorful cichlid fishes of the African Great Lakes is a classic example of explosive evolution, with thousands of species having appeared in the geological equivalent of a blink of an eye.

A new study shows that cichlid fish reared in larger social groups from birth display a greater and more extensive range of social interactions, which continues into the later life of the fish.

The extraordinary diversity of cichlid fishes challenges entrenched ideas of how quickly new species can arise

In a 2014 paper, Burghardt and his colleagues from the University of Tennessee and the Smithsonian National Zoological Park described how three cichlid fish played with a thermometer in their tank, bouncing the «toy» repeatedly.

Several crater lakes house populations of Midas cichlid fish that have developed independently from the ancestral population in the nearby great lakes of Nicaragua.

Richard Francis and his colleagues at the University of Oregon in Eugene and the University of Washington in Seattle studied a species of cichlid fish found in Lake Tanganyika.

Baby cichlid fish masquerade as snails with mother luring more snails in, which allows the mother to spend less time chasing away predators

To test their theory, scientists divided a school of social cichlid fish into two categories: 14 social fish and 15 loners.

Then there is the behavioural endocrinologist Richard Francis and his colleagues and their work on cichlid fish, which shows how social events regulate the gonads.

One of the focuses of my doctoral work has been to understand the genetic basis of behavioral differences between ecologically - varied cichlid fish species.

Reservoir of mutations enabled cichlid fish to adapt to varied environments; results shed light on mechanisms of vertebrate evolution

In addition to helping explain the complex genomic mechanisms that give rise to incredible diversity among cichlid fishes, the findings from these «natural mutants» shed new light on the molecular process of evolution in all vertebrate species.

Ole Seehausen, senior author and Head of Fish Ecology and Evolution at Eawag Aquatic Research, said: «African cichlid fish stand out amongst fish by their incredible richness of species that evolved without geographical isolation and that now coexist within individual lakes.

Nature 2014, 513, 375 - 381 — Nature News & Views Cichlid fishes are famous for large, diverse and replicated adaptive radiations in the Great Lakes of East Africa.

Cichlid Fish Secrets is an e-book that covers everything that you need to know about keeping and breeding healthy and happy cichlids.

The paper, titled: «The genomic substrate for adaptive radiation in African cichlid fish» is published in Nature.

«Evolutionary biologists observe parallel, repeated evolution of cichlid fish in Nicaragua.»

Finally, we collaborate with Lauren Chapman of McGill University (Montreal, Canada) to study the role of phenotypic plasticity (changes induced by the environment) and genetic assimilation in the process of adaptation and evolutionary change of cichlid fishes.

Cichlid fishes have undergone a mind - boggling degree of speciation.

They don't signal their ascent from beta to alpha status by turning bright blue, as do males from one species of African cichlid fish.

Related Sites The Cichlid Fishes of Lake Malawi, Africa Patrik Bylund's page on Malawi cichlid evolution

In a study published in PLoS ONE, researchers from Stanford report that social status in cichlid fish may be regulated by DNA methylation.

Incipient species of African cichlid fish have divergent genomic islands associated with mate choice.

The secret to the unique diversity of Lake Malawi's cichlid fish may be down to huge variations in climate and water levels over the years

Urinating at rivals is all part of one cichlid fish's territorial display.

Sympatric speciation occurs when new species emerge without separation, such as the 13 species of Galapagos finch or Africa's cichlid fish.

The African cichlid fishes are some of the most phenotypically diverse groups of organisms on the planet, with over 2,000 known species.

Using the cichlid fish species as a model system gives us valuable insight into human biology and disease.

In an effort to understand the molecular basis of adaptation in vertebrates, researchers sequenced the genomes and transcriptomes of five species of the African cichlid fish.

The genomic substrate for adaptive radiation in African cichlid fish.

When their eggs were taken away for a prolonged period, the females of a cichlid fish species ate both their own eggs and foreign eggs.

In an effort to understand the molecular basis of adaptation in vertebrates, researchers sequenced the genomes and transcriptomes of five species of African cichlid fishes.

At home, he cares for his dog, Jee, 2 turtles (a Musk and a New Guinea Sideneck) and 2 Cichlid fish.

7 cats, (Tom - Tom, Foxy, Tink, and 4 ferals), and 9 African cichlid fish.