Results 41 to 50 of about 16,811 (235)

Biological Diversity and Resilience: Lessons from the Recovery of Cichlid Species in Lake Victoria

open access: yesEcology and Society, 2011
A fundamental feature of the Anthropocene is the inexorable erosion of the self-repairing capacity or adaptive renewal of natural systems because of natural perturbation, exploitation, or management failure.
Alex O. Awiti
doaj   +1 more source

Reduced host-specificity in a parasite infecting non-littoral Lake Tanganyika cichlids evidenced by intraspecific morphological and genetic diversity

open access: yesScientific Reports, 2016
Lake Tanganyika is well-known for its high species-richness and rapid radiation processes. Its assemblage of cichlid fishes recently gained momentum as a framework to study parasite ecology and evolution.
N. Kmentová   +5 more
semanticscholar   +1 more source

Impact of Lernaea cyprinacea Linnaeus 1758 (Crustacea : Copepoda) almost a decade after an initial parasitic outbreak in fish of Malilangwe Reservoir, Zimbabwe

open access: yesKnowledge and Management of Aquatic Ecosystems, 2012
An assessment was carried out on the impact of Lernaea cyprinacea on fish populations ten years after its first outbreak in the Malilangwe reservoir, and Lernaea cyprinacea is currently showing no sign of declining in the ...
Dalu T.   +3 more
doaj   +1 more source

Spatial Learning of Individual Cichlid Fish and Its Effect on Group Decision Making

open access: yesAnimals, 2022
Learning and memory abilities and their roles in group decision-making have important ecological relevance in routine activities such as foraging and anti-predator behaviors in fish species.
Jiaxing Long, Shijian Fu
doaj   +1 more source

Complex histories of repeated gene flow in Cameroon crater lake cichlids cast doubt on one of the clearest examples of sympatric speciation

open access: yesEvolution; international journal of organic evolution, 2015
One of the most celebrated examples of sympatric speciation in nature are monophyletic radiations of cichlid fishes endemic to Cameroon crater lakes. However, phylogenetic inference of monophyly may not detect complex colonization histories involving ...
C. Martin   +5 more
semanticscholar   +1 more source

Genetic analyses in Lake Malawi cichlids identify new roles for Fgf signaling in scale shape variation

open access: yesCommunications Biology, 2018
Elasmoid scales are the most common epithelial appendage among vertebrates, however an understanding of the genetic mechanisms that underlie variation in scale shape is lacking.
Craig Albertson   +3 more
semanticscholar   +1 more source

Noise-Induced Schooling of Fish [PDF]

open access: yes, 2019
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

Ontogenetic diet shifts of Oreochromis niloticus and Tilapia rendalli of the Barra Bonita reservoir (Tietê river, São Paulo State, Brazil)=Mudanças ontogenéticas na dieta de Oreochromis niloticus and Tilapia rendalli da represa de Barra Bonita (rio Tietê, Estado de São Paulo, Brasil) [PDF]

open access: yesActa Scientiarum: Biological Sciences, 2012
The Nile Tilapia, Oreochromis niloticus, and the Congo Tilapia, Tilapia rendalli, are important members of the African cichlids, and have been introduced to many Brazilian lakes and reservoirs.
Edmir Daniel Carvalho   +2 more
doaj  

The Integrated Genomic Architecture and Evolution of Dental Divergence in East African Cichlid Fishes (Haplochromis chilotes x H. nyererei)

open access: yesG3: Genes, Genomes, Genetics, 2017
The independent evolution of the two toothed jaws of cichlid fishes is thought to have promoted their unparalleled ecological divergence and species richness.
C. Darrin Hulsey   +5 more
doaj   +1 more source

Rapid generation of ecologically relevant behavioral novelty in experimental cichlid hybrids

open access: yesEcology and Evolution, 2020
The East African cichlid radiations are characterized by repeated and rapid diversification into many distinct species with different ecological specializations and by a history of hybridization events between nonsister species.
Anna F. Feller   +5 more
doaj   +1 more source

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