Results 81 to 90 of about 38,423 (309)
Molecular biology and evolution, 2020 The two toothed jaws of cichlid fishes provide textbook examples of convergent evolution. Tooth phenotypes such as enlarged molar-like teeth used to process hard-shelled molluscs have evolved numerous times independently during cichlid diversification ...
Nidal Karagic +3 more
semanticscholar +1 more source
Methods in Ecology and Evolution, EarlyView.Abstract Understanding how both the mean (location) and variance (scale) of traits differ among species and lineages is fundamental to unveiling macroevolutionary patterns. Yet, traditional phylogenetic comparative methods primarily focus on modelling mean trait values, often overlooking variability and heteroscedasticity that can provide critical ...
Shinichi Nakagawa +5 more
wiley +1 more source
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 +1 more
openaire +3 more sources
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
doaj +1 more source
Sequence Expression of Supernumerary B Chromosomes: Function or Fluff? [PDF]
, 2019 B chromosomes are enigmatic heritable elements found in the genomes of numerous plant and animal species. Contrary to their broad distribution, most B chromosomes are non-essential. For this reason, they are regarded as genome parasites.
Akbari, Omar S +2 more
core +1 more source
Systematic Biology, 2020 The Midas cichlids of the Amphilophus citrinellus spp. species complex from Nicaragua (13 species) are an extraordinary example of adaptive and rapid radiation (< 24,000 years old).
M. Olave, A. Meyer
semanticscholar +1 more source
Biological Reviews, EarlyView.ABSTRACT The environment experienced by a mother influences offspring phenotype through maternal effects, which can have significant adaptive benefits for both the mother and the offspring. However, the ways in which maternal environments influence offspring development are extremely diverse, and empirical studies using an outcome‐based approach often ...
Sin‐Yeon Kim, Judith Morales
wiley +1 more source
Early stages of sympatric homoploid hybrid speciation in crater lake cichlid fishes
Nature Communications, 2022 Here, the authors present a rare example of sympatric homoploid hybrid speciation, without ploidy changes, in the Midas cichlid fishes from Nicaragua. Midas cichlid hybrids occupy a different ecological niche, likely facilitated by body shape adaptations.
Melisa Olave +3 more
doaj +1 more source
Acta Natura et Scientia, 2022 This study aimed to describe the larval development stage of rusty cichlid, Iodotropheus sprengerae morphologically. The rusty cichlid is a mouth-brooding haplochromine cichlid from Lake Malawi.
İhsan Çelik +2 more
doaj +1 more source
Non‐breeding social behaviour as an investment in reducing future territoriality costs
Biological Reviews, EarlyView.ABSTRACT Territoriality is costly, and animals should adopt strategies to cope with these costs. Seasonal territoriality for breeding – a common strategy in many groups of animals – can reduce costs during the non‐breeding season but requires establishing new territories every breeding season.
Samuele Ramellini +3 more
wiley +1 more source