Results 81 to 90 of about 17,678 (274)

Introgressive hybridization in a trophically polymorphic cichlid [PDF]

Ecology and Evolution, 2013
AbstractTrophically polymorphic species could represent lineages that are rapidly diverging along an ecological axis or could phenotypically mark the collapse of species through introgressive hybridization. We investigated patterns of introgression between the trophically polymorphic cichlid fish Herichthys minckleyi and its relative H.
C. Darrin Hulsey, Francisco J. García-De-León   +1 more
openaire   +3 more sources

A call to integrate non‐visual functions of pigments and their interactions with visual functions to understand global change impacts on visual systems

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Animal coloration serves a variety of visually related functions in nature (e.g. mate choice, aposematism and camouflage) but the pigments in integumentary tissues such as skin, scales and feathers may also serve functions unrelated to the visual environment (e.g ...
Beth A. Reinke, Julian D. Avery, Jessica Hua   +2 more
wiley   +1 more source

Food habits of three non-native cichlid fishes in the lowermost Chao Phraya River basin, Thailand

Journal of Freshwater Ecology, 2019
The food habits of three non-native cichlid fishes, Mayan cichlid (Mayaheros urophthalmus), Mozambique tilapia (Oreochromis mossambicus) and Nile tilapia (O. niloticus), in the lowermost Chao Phraya River basin, Thailand, was examined by stomach contents
Daiki Tomojiri, Prachya Musikasinthorn, Akihisa Iwata   +2 more
doaj   +1 more source

Chromosome-scale assemblies reveal the structural evolution of African cichlid genomes

bioRxiv, 2018
Background African cichlid fishes are well known for their rapid radiations and are a model system for studying evolutionary processes. Here we compare multiple, high-quality, chromosome-scale genome assemblies to understand the genetic mechanisms ...
Matthew A. Conte, R. Joshi, Emily C. Moore, Sri Pratima Nandamuri, William J. Gammerdinger, Reade B. Roberts, K. Carleton, S. Lien, T. Kocher   +8 more
semanticscholar   +1 more source

Coral reef fish visual adaptations to a changing world

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Coral reef ecosystems show fluctuations in their prevailing light environment in response to both regular (e.g. between seasons) and more prevalent stochastic events (e.g. human‐induced sediment runoff).
Abigail Shaughnessy, Fabio Cortesi
wiley   +1 more source

Ecophenotypic Variation of Midas Cichlid, Amphilophus citrinellus (Gunther, 1864), in Lake Batur, Bali, Indonesia [PDF]

Brazilian Journal of Biology
Cichlid fishes exhibit rapid adaptive radiations with significant diversification rates in response to ecological variability, i.e., ecological opportunity or geographical isolation.
R. Gustiano, G. S. Haryani, S. Aisyah, F. M. Nur, Gde. R. A. Kartika, T. Noegroho, I. W. Arthana, H. Albasri, S. Larashati, H. Haryono, I. I. Kusmini, Y. Yosmaniar, A. R. Syam, I. Taufik, E. Setiadi, I. G. N. Permana   +15 more
doaj   +1 more source

Genomic islands of speciation separate cichlid ecomorphs in an East African crater lake

Science, 2015
Cichlids diverge within a crater lake It is not clear how populations diversify and new species form at the genomic level, especially when they coexist in the same location. Malinsky et al.
M. Malinsky, Richard J. Challis, Alexandra Tyers, S. Schiffels, Y. Terai, B. Ngatunga, E. Miska, R. Durbin, M. Genner, G. Turner   +9 more
semanticscholar   +1 more source

Bluer in the city: urban male lizards exhibit more intense sexual coloration and lower parasite loads than non‐urban males

Integrative Zoology, EarlyView.
The urban environment may exert different selective pressures on sexually selected traits than more pristine environments. Our study shows that sexual coloration is more saturated (bluer) in male lizards from urban environments than in male non‐urban lizards. The average parasite load is lower in urban lizards than in non‐urban lizards.
Juan C. GONZÁLEZ‐MORALES, Jimena RIVERA‐REA, Gabriel SUÁREZ‐VARÓN, Elizabeth BASTIAANS, Heliot ZARZA   +4 more
wiley   +1 more source

The effect of high rearing densities on the growth of juveniles of the cichlid, cichlasoma managuense (Günther, 1869)

Uniciencia, 1992
Se investigó el efecto del cultivo en alta densidad sobre la tasa de crecimiento de juveniles de guapote tigre. Mientras que la tasa de crecimiento promedio disminuye con la densidad, el crecimiento de los peces más grandes no resultó afectado. Con altas
Jorge Günther Nonell, Nazira Gálvez Hidalgo   +1 more
doaj  

Improving Whole Biodiversity Monitoring and Discovery With Environmental DNA Metagenomics

Molecular Ecology Resources, EarlyView.
ABSTRACT Environmental DNA (eDNA) metagenomics sequences all DNA molecules present in environmental samples and has the potential of identifying virtually any organism from which they are derived. However, due to unacceptable levels of false positives and negatives, this approach is underexplored as a tool for biodiversity monitoring across the tree of
Manuel Curto, Ana Veríssimo, Giulia Riccioni, Carlos D. Santos, Filipe Ribeiro, Sissel Jentoft, Maria Judite Alves, Hugo F. Gante   +7 more
wiley   +1 more source