Results 131 to 140 of about 38,423 (309)
The cognitive role of concept variability
Mind &Language, EarlyView.I present and defend concept variability, the view that concepts can admit of indefinitely many variations and changes in their representational contents without thereby losing their identity. I argue that the variability of concepts is central to their role in enabling cognition, and thus that a concept's content variability is, despite philosophical ...
Alnica Visser
wiley +1 more source
The impact of host dispersal on parasite biogeography
Frontiers of Biogeography, 2016 N ...
Mariana Rocha Souza +2 more
doaj
Genome Biology and Evolution, 2019 Why sex chromosomes turn over and remain undifferentiated in some taxa, whereas they degenerate in others, is still an area of ongoing research. The recurrent occurrence of homologous and homomorphic sex chromosomes in distantly related taxa suggests ...
Astrid Böhne +6 more
semanticscholar +1 more source
Mortality estimates of the four major Cichlid fishes of Umuoseriche Lake, Imo State, Nigeria [PDF]
, 2004 The mortality of the four major cichlid fishes of Urnuoseriche Lake is the subject of this paper. Mortality I as estimated by five techniques, vary amongst the cichlid fishes, viz, Tilapia carbrae, Tilapia mariac, Tilapia zilli cend (hrornoditilapfa ...
Anene, Afamdi
core
Pigments of a color polymorphism in a cichlid fish
Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1973 Abstract 1. 1. Cichlasoma citrinellum occurs as gray or gold morphs in lakes in Nicaragua. The gold morph is variable and individuals range from yellow to dark orange. 2. 2. The pigments responsible for the carotenoid coloration are e-carotene and canthaxanthin. The gray morph contains a carotenoid component and also heavy melanin deposits.
Webber, Robert +2 more
openaire +4 more sources
Protein and amino acid requirements of warm-water fishes: a tool to efficient and low-cost fish feed production in Nigeria [PDF]
, 1993 Numerous investigations have utilized various semi-purified and purified diets to estimate the protein and amino acid requirements of several temperate fishes. The vast literature on the protein and amino acid requirements of fishes has continued to omit
Balogun, A.M. +2 more
core
Genes, Brain and Behavior, Volume 24, Issue 6, December 2025.We combine traditional methods with an original network analysis to investigate the spatiotemporal expression patterns of candidate genes across the female guppy brain. We found consistent differences in the expression of these genes triggered by mating stimuli, and used mathematical models to further understand how mating behavior is coordinated in ...
Amaury Bittar +7 more
wiley +1 more source
9. The Cichlid Fishes of Like Victoria. [PDF]
Proceedings of the Zoological Society of London, 1922 (Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire +2 more sources
Color discrimination thresholds in a cichlid fish: Metriaclima benetos
Journal of Experimental Biology, 2019 Color vision is essential for animals as it allows them to detect, recognize and discriminate between colored objects. Studies analyzing color vision require an integrative approach, combining behavioral experiments, physiological models and quantitative
Daniel Escobar‐Camacho +5 more
semanticscholar +1 more source
Seasonal Forest Resources Support Fish Biomass in Floodplain Lakes of an Amazonian Tributary
Freshwater Biology, Volume 70, Issue 11, November 2025.ABSTRACT The Flood Pulse Concept is a foundational ecological theory that emphasizes the critical role of lateral connectivity between a river channel and its floodplain. Many tropical rivers inundate the surrounding floodplain in the flood stage, thereby receiving large amounts of terrestrial organic matter that can be decomposed by microbes and ...
Timothy D. Jardine +7 more
wiley +1 more source