Results 51 to 60 of about 31,138 (282)

The impact of urbanisation on social behaviour: a comprehensive review

open access: yesBiological Reviews, EarlyView.
ABSTRACT Urbanisation is a key driver of global environmental change and presents animals with novel stressors and challenges. It can fundamentally influence social behaviour and has the potential to reshape within‐ and between‐species social interactions. Given the role of social behaviour in reproductive fitness and survival, understanding how social
Avery L. Maune   +2 more
wiley   +1 more source

Cryptobia iubilans in Cichlids

open access: yesEDIS, 2014
After many years of diagnostics at the University of Florida and at other laboratories around the country, it appears that Cryptobia iubilans is not uncommon among cichlids, and that environmental and other factors determine the extent of disease. This revised 3-page fact sheet was written by Ruth Francis-Floyd and Roy Yanong, and published by the UF ...
Ruth Francis-Floyd, Roy Yanong
openaire   +5 more sources

Functional trait plasticity diverges between sexes in African cichlids: A contribution toward ecological sexual dimorphism?

open access: yesEcology and Evolution, 2023
Phenotypic plasticity enables development to produce multiple phenotypes in response to environmental conditions. Plasticity driven variation has been suggested to play a key role in adaptive divergence, and plasticity itself can evolve.
Kirsty McWhinnie   +3 more
doaj   +1 more source

Adaptive radiation of cichlid fish [PDF]

open access: yesCurrent Biology, 2007
I thank Karen Carleton and Martin Genner for helpful comments on an earlier version of the manuscript and Ad Konings for providing the photomontage.
openaire   +2 more sources

The opsin genes of amazonian cichlids [PDF]

open access: yesMolecular Ecology, 2017
AbstractVision is a critical sense for organismal survival with visual sensitivities strongly shaped by the environment. Some freshwater fishes with a Gondwanan origin are distributed in both South American rivers including the Amazon and African rivers and lakes. These different habitats likely required adaptations to murky and clear environments.
Escobar-Camacho, Daniel   +3 more
openaire   +3 more sources

Beyond mammals: the evolution of chewing and other forms of oropharyngeal food processing in vertebrates

open access: yesBiological Reviews, EarlyView.
ABSTRACT Oropharyngeal food processing exhibits a remarkable diversity among vertebrates, reflecting the evolution of specialised ‘processing centres’ associated with the mandibular, hyoid, and branchial arches. Although studies have detailed various food‐processing strategies and mechanisms across vertebrates, a coherent and comprehensive terminology ...
Daniel Schwarz   +6 more
wiley   +1 more source

Overview of the discus fish (Symphysodon spp.): narrative review combined with potential for ornamental aquaculture

open access: yesBrazilian Journal of Biology
The 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
doaj   +1 more source

Effects of some environmental factors on the fecundity of Tilapia species (Family Cichlidae) in Kigera Reservoir, New Bussa [PDF]

open access: yes, 2005
The effects of some environmental factors on the fecundity of Tilapia species (Family Cichilidae) was carried out at the Kigera dam. Four Tilapia species caught were Tilapia zilli, Hemichromis fasciatus, Sarotherodon galilaeus and Oreochromis niloticus ...
Issa, E.A., Olufeagba, S.O., Raji, A.
core  

Tagging Very Small Fish: Two Effective and Low Impact Methods

open access: yesJournal of Experimental Zoology Part A: Ecological and Integrative Physiology, EarlyView.
ABSTRACT Identifying individuals over time and across contexts is essential in many scientific fields. There are a variety of well‐established methods for uniquely marking individuals (e.g., visible implant elastomer, barcodes, paint). However, for some species, life history stages, and/or experiments, existing methods are not sufficient.
Deijah D. Bradley   +4 more
wiley   +1 more source

Morphological Evidence for Functional Crosstalk Between Multiple GnRH Systems in the Male Tilapia, Oreochromis niloticus

open access: yesFrontiers 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

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