Results 61 to 70 of about 25,769 (226)
Frontiers in Endocrinology, 2020 Gonadotropin-releasing hormone (GnRH) is a reproductive neuropeptide, which controls vertebrate reproduction. In most vertebrates, there are more than two GnRH orthologs in the brain.
Satoshi Ogawa, Ishwar Parhar
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Foraging environment determines the genetic architecture and evolutionary potential of trophic morphology in cichlid fishes [PDF]
, 2016 Phenotypic plasticity allows organisms to change their phenotype in response to shifts in the environment. While a central topic in current discussions of evolutionary potential, a comprehensive understanding of the genetic underpinnings of plasticity is
Albertson, R. Craig +7 more
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Journal of Animal Ecology, EarlyView.Our study contributes to our understanding of the effects of interspecific competition in species with biparental care where male and female parents must somehow coordinate their response to interspecific competition. Abstract Interspecific competition is an important evolutionary driver of many species' life histories and behaviours, arising wherever ...
Casey Patmore, Per T. Smiseth
wiley +1 more source
Sensory modalities in cichlid fish behavior [PDF]
Current Opinion in Behavioral Sciences, 2015 Among teleosts, cichlids are a great model for studies of evolution, behavior, diversity and speciation. Studies of cichlid sensory systems have revealed diverse sensory capabilities that vary among species. Hence, sensory systems are important for understanding cichlid behavior from proximate and ultimate points of view.
Daniel, Escobar-Camacho +1 more
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Recent research in the African Great Lakes: fisheries, biodiversity and cichlid evolution [PDF]
, 2003 The East African Great Lakes are now well known for (1) their fisheries, of vital importance for their rapidly rising riparian human populations, and (2) as biodiversity hotspots with spectacular endemic faunas, of which the flocks of cichlid fishes ...
Lowe-McConnell, Rosemary
core
Barrier loci and progress towards evolutionary generalities [PDF]
, 2017 No abstract ...
Berner +7 more
core +1 more source
Integrative Zoology, EarlyView.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
Convict cichlids benefit from close proximity to another species of cichlid fish [PDF]
Biology Letters, 2008 The coexistence of species with overlapping resource use is often thought to involve only negative fitness effects as a consequence of interspecific competition. Furthermore, the scarce empirical research on positive species interactions has predominantly focused on sessile organisms.
openaire +2 more sources
Temporal diversification of Central American cichlids [PDF]
BMC Evolutionary Biology, 2010 Cichlid fishes are classic examples of adaptive radiation because of their putative tendency to explosively diversify after invading novel environments. To examine whether ecological opportunity increased diversification (speciation minus extinction) early in a species-rich cichlid radiation, we determined if Heroine cichlids experienced a burst of ...
Hulsey C Darrin +2 more
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Brazilian Journal of BiologyThe discus fish (Symphysodon spp.) is an Amazonian cichlid species with great appeal in the ornamental fish market due to its characteristic shape, coloration, and behavior. This study aims to conduct a narrative review of the discus fish.
M. W. S. Ribeiro +4 more
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