Results 121 to 130 of about 7,447 (233)

Direct male-male competition can facilitate invasion of new colour types in Lake Victoria cichlids [PDF]

open access: yes, 2005
The possibility that disruptive sexual selection alone can cause sympatric speciation is currently a subject of much debate. The initial difficulty for new and rare ornament phenotypes to invade a population, and the stabilisation of the resulting ...
Dijkstra, PD   +8 more
core   +1 more source

Reproductive ecology of a neotropical cichlid fish, Cichla monoculus (Osteichthyes: Cichlidae)

open access: yesBrazilian Journal of Biology, 2003
The reproductive ecology of the freshwater fish Cichla monoculus Spix, 1831 (Osteichthyes: Cichlidae) was investigated in the Campo Grande Reservoir, Northeast Brazil.
Chellappa S.   +4 more
doaj  

Reproductive ecology of a neotropical cichlid fish, Cichla monoculus (Osteichthyes: Cichlidae)

open access: yesBrazilian Journal of Biology
The reproductive ecology of the freshwater fish Cichla monoculus Spix, 1831 (Osteichthyes: Cichlidae) was investigated in the Campo Grande Reservoir, Northeast Brazil.
S. Chellappa   +4 more
doaj   +1 more source

adapt3: Adaptive dynamics and community projection in the R programming language

open access: yesMethods in Ecology and Evolution, Volume 17, Issue 6, Page 1719-1725, June 2026.
Abstract Ecologists typically use matrix projection to understand population dynamics. Recently, they have applied matrix projection to analyse communities and evolutionary dynamics. Particularly, matrix community models (MCMs) provide a reductionist, demographic approach to the study of ecological interactions, while adaptive dynamics assess the ...
Richard P. Shefferson
wiley   +1 more source

The Eocene cichlids (Perciformes:Labroidei) of Mahenge, Tanzania /

open access: yes, 2000
A new genus and five new species of fossil cichlid fishes (Perciformes: Labroidei) are described from Mahenge, Tanzania. These cichlids represent the oldest confirmed fossils of the family, dating from the middle of the Eocene.
Murray, Alison M.
core  

Trait coevolution and causal inference using generalized dynamic phylogenetic models

open access: yesMethods in Ecology and Evolution, Volume 17, Issue 6, Page 1818-1836, June 2026.
Abstract Phylogenetic comparative methods are widely used to study trait coevolution across biological and cultural domains. The most common methods are phylogenetic generalized linear (mixed) models, phylogenetic path analysis, Pagel's ‘discrete’ method and Ornstein–Uhlenbeck models. While some frameworks like generalized linear mixed models are quite
Erik J. Ringen   +3 more
wiley   +1 more source

11-20-2014-malfaro-cichlids-taxa.conf

open access: yes, 2016
Configuration file used with PHYLUCE for taxon-set ...
Matthew D. McGee (3240747)   +13 more
core   +1 more source

Heterokairic Genes and the Eco‐Evo‐Devo of Timing

open access: yesEvolution &Development, Volume 28, Issue 2, June 2026.
Heterokairic genes as the bridge (Heterokairic Pathways?): Heterokairic genes are heterochronic regulators whose activity is modulated by environmental conditions. External cues (e.g., temperature, nutrition, oxygen, density: yellow box) are sensed (yellow arrows) and converted into endocrine and metabolic signals (purple box and arrow into fish's ...
Leandro Lofeu, Ehsan Pashay Ahi
wiley   +1 more source

Early social complexity influences social behaviour but not social trajectories in a cooperatively breeding cichlid fish

open access: yesRoyal Society Open Science
Social competence—defined as the ability to optimize social behaviour according to available social information—can be influenced by the social environment experienced in early life.
Océane La Loggia   +2 more
doaj   +1 more source

Ancient and Recent Riverine Gene Flow Contributed to the Adaptive Radiation of Sailfin Silversides in Wallace's Dreampond

open access: yesMolecular Ecology, Volume 35, Issue 11, June 2026.
ABSTRACT While adaptive radiations significantly contribute to the world's biodiversity, much is unknown about the genetic and ecological factors underlying these rapid successions of speciation. It has been suggested that hybridisation can facilitate the speciation process by generating genetic diversity on which diversifying selection can act ...
Els Lea R. De Keyzer   +14 more
wiley   +1 more source

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