Results 51 to 60 of about 15,069 (222)
Mitochondrial DNA phylogeny of the family cichlidae: monophyly and fast molecular evolution of the neotropical assemblage [PDF]
, 1999 . A mitochondrial DNA (mtDNA) phylogeny of cichlid fish is presented for the most taxonomically inclusive data set compiled to date (64 taxa). 16S rDNA data establish with confidence relationships among major lineages of cichlids, with a general pattern ...
Amazonas Brasil +5 more
core +2 more sources
The Anatomical Record, EarlyView.Abstract Teleocichla comprises small cichlids that inhabit the rapid streams of Amazonian rivers; however, there has been limited research on their encephalon morphology. This study examined the neuroanatomy of four species, focusing on volumetric measurements of their encephalon subregions, and providing a histological description of the encephalon of
Renan Leão‐Reis +4 more
wiley +1 more source
Knowledge and Management of Aquatic Ecosystems, 2012 An assessment was carried out on the impact of Lernaea cyprinacea on fish populations ten years after its first outbreak in the Malilangwe reservoir, and Lernaea cyprinacea is currently showing no sign of declining in the ...
Dalu T. +3 more
doaj +1 more source
PLANTS, PEOPLE, PLANET, EarlyView.Biodiversity is threatened by human activities, with extinction debt accumulating rapidly. Many of these activities change the connectivity of populations, fragmenting existing population systems or bringing previously isolated populations or species into contact.
Zhiqin Long +7 more
wiley +1 more source
Acta Scientiarum: Biological Sciences, 2012 The Nile Tilapia, Oreochromis niloticus, and the Congo Tilapia, Tilapia rendalli, are important members of the African cichlids, and have been introduced to many Brazilian lakes and reservoirs.
Edmir Daniel Carvalho +2 more
doaj +3 more sources
Frontiers in Genetics, 2020 Cichlids constitute a diverse monophyletic group that have developed adaptive strategies to thrive in diverse environments. Andinoacara represents an example of diversification on the South American Andean uplift, providing a key model for understanding ...
Luz Elena De la Ossa-Guerra +4 more
doaj +1 more source
Within-guild dietary discrimination from 3-D textural analysis of tooth microwear in insectivorous mammals [PDF]
, 2013 Resource exploitation and competition for food are important selective pressures in animal evolution. A number of recent investigations have focused on linkages between diversification, trophic morphology and diet in bats, partly because their roosting ...
Crumpton, Nicholas +4 more
core +2 more sources
Journal of Animal Ecology, EarlyView.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
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
Evolution: Cichlid Models on the Runaway to Speciation [PDF]
Current Biology, 2012 Rapid speciation has fascinated biologists for a long time. A recent study shows that ecological opportunity and sex-biased color differences increase the likelihood of speciation in African cichlid fishes.
Gante, Hugo F., Salzburger, Walter
openaire +3 more sources