Results 71 to 80 of about 38,423 (309)
Oxidative stress in the brain is regulated by social status in a highly social cichlid fish
Social stress can increase reactive oxygen species and derail antioxidant function in the brain, which may contribute to the onset and progression of mental health disorders.
Peter D. Dijkstra +7 more
doaj +1 more source
The Influence of Body Size and Hemoglobin Multiplicity on Critical Oxygen Threshold in Red Drum (Sciaenops ocellatus) [PDF]
Hypoxia is common in marine environments and fishes use a suite of cardiorespiratory adjustments to defend aerobic metabolism, including reducing standard metabolic rate (SMR), the minimum metabolic rate needed to sustain life at a specified temperature,
Pan, Yihang
core +1 more source
The comparative genomic landscape of adaptive radiation in crater lake cichlid fishes
Factors ranging from ecological opportunity to genome composition might explain why only some lineages form adaptive radiations. While being rare, particular systems can provide natural experiments within an identical ecological setting where species ...
Peiwen Xiong +10 more
semanticscholar +1 more source
This study tests whether early‐life maternal association buffers offspring from the effects of prenatal stress in a facultatively social lizard. Despite clear effects of maternal glucocorticoids on growth and social behaviour, social associations did not mitigate these effects, revealing limits to social buffering in this species.
Kirsty J. MacLeod +4 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 +4 more sources
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
In this study, we tested whether white and yellow morphs of the common wall lizard (Podarcis muralis) adopt alternative strategies shaped by the immuno‐competence handicap hypotheses (ICHH). We found that testosterone‐induced immune suppression was stronger in white males, while aggression decreased in both morphs.
Roberto Sacchi +5 more
wiley +1 more source
Cichlid Evolution: Lessons in Diversification 2012 [PDF]
This is the second special issue on cichlid evolution hosted by the International Journal of Evolutionary Biology. Once more, we are overwhelmed by the vivid responses to our call for contributions, and thank the authors for their great work. The thirteen papers in this issue, including two reviews, span geographically from Africa to South America and ...
Koblmuller, Stephan +4 more
openaire +4 more sources
Phenotypic plasticity enables development to produce multiple phenotypes in response to environmental conditions. Plasticity driven variation has been suggested to play a key role in adaptive divergence, and plasticity itself can evolve.
Kirsty McWhinnie +3 more
doaj +1 more source
Analysis of the meiotic segregation in intergeneric hybrids of tilapias [PDF]
Tilapia species exhibit a large ecological diversity and an important propensity to interspecific hybridisation. This has been shown in the wild and used in aquaculture.
Baroiller, Jean-Francois +5 more
core +4 more sources

