Results 91 to 100 of about 31,138 (282)

Sex‐biased dispersal in the Arabian babbler (Argya squamiceps)

open access: yesIbis, EarlyView.
Sex‐biased dispersal plays a central role in shaping social structure and reproductive strategies in many bird species. In the Arabian Babbler Argya squamiceps, a cooperatively breeding species with pronounced male philopatry, dispersal occurs individually or in kin‐based same‐sex coalitions.
Roni Ostreiher   +2 more
wiley   +1 more source

Competition-driven speciation in cichlid fish [PDF]

open access: yesNature Communications, 2014
Theoretically, competition can initiate divergence in habitat use between individuals of a species, leading to restricted gene flow and eventual speciation. Evidence that sister species differ in habitat use is commonplace and consistent with this mechanism, but empirical experimental support is surprisingly scarce.
Winkelmann, Kai   +3 more
openaire   +3 more sources

Individual identification of bony fishes using unique body markings: Implications and applications

open access: yesJournal of Fish Biology, EarlyView.
Abstract The natural variation in animal body markings, such as spots, stripes and blotches, offers a powerful tool for researchers, conservationists, citizen scientists and resource managers to distinguish specific individuals within species. By building libraries of photo‐identified individuals, we can track and differentiate individuals over time ...
Katie Dunkley   +6 more
wiley   +1 more source

Individuality in Fish Behavior: Ecology and Comparative Psychology [PDF]

open access: yes, 2002
This work is a brief review of a series of studies of the phenotypic organization and ecological significance of individual differences in fish behavior.
Budaev, Dr. Sergey, Zworykin, Dr. Dmitry
core  

Cichlid Evolution: Lessons in Diversification 2012 [PDF]

open access: yesInternational Journal of Evolutionary Biology, 2012
This is the second special issue on cichlid evolution hosted by the International Journal of Evolutionary Biology. Once more, we are overwhelmed by the vivid responses to our call for contributions, and thank the authors for their great work. The thirteen papers in this issue, including two reviews, span geographically from Africa to South America and ...
Koblmuller, Stephan   +4 more
openaire   +3 more sources

Structural and developmental insights into the muscles involved in lionfish (Pterois spp.) vocalisations

open access: yesJournal of Fish Biology, EarlyView.
Abstract Vocal signalling is an important mode of communication in fishes. The two species of lionfish in the Pterois complex, the Indo‐Pacific lionfish (Pterois volitans) and the red lionfish (Pterois miles), are both known to produce different types of sounds with sonic muscles attached to the swimbladder.
Roxanne B. Holmes   +5 more
wiley   +1 more source

Island time and the interplay between ecology and evolution in species diversification. [PDF]

open access: yes, 2015
Research on the dynamics of biodiversity has progressed tremendously over recent years, although in two separate directions - ecological, to determine change over space at a given time, and evolutionary, to understand change over time.
Gillespie, Rosemary G
core   +1 more source

Linking rivers, mixing faunas: How artificial connectivity between the Middle and Upper Paraná River basins shapes fish diversity in a tributary of the Itaipu Reservoir, Brazil

open access: yesJournal of Fish Biology, EarlyView.
Abstract This work aimed to investigate the distribution and occurrence of fish species along the São Francisco Falso Braço Norte (SFFBN) River basin, a tributary of the Middle Paraná River basin now artificially connected to the Upper Paraná ecoregion, to evaluate how such connectivity may affect the biogeographic distribution and regional composition
Lucas E. P. Kampfert   +5 more
wiley   +1 more source

Metabolic adjustments in Satanoperca aff. jurupari (Perciformes: Cichlidae)

open access: yesGenetics and Molecular Biology, 2003
In this paper, we describe the enzyme levels and isozyme distribution in skeletal and heart muscle of Satanoperca aff. jurupari, (Cichlidae, subgroup Geophaginae). LDH and CS were measured in skeletal and heart muscle. Starch gel electrophoresis was used
Chippari-Gomes Adriana R.   +4 more
doaj  

Food habits of three non-native cichlid fishes in the lowermost Chao Phraya River basin, Thailand

open access: yesJournal of Freshwater Ecology, 2019
The food habits of three non-native cichlid fishes, Mayan cichlid (Mayaheros urophthalmus), Mozambique tilapia (Oreochromis mossambicus) and Nile tilapia (O. niloticus), in the lowermost Chao Phraya River basin, Thailand, was examined by stomach contents
Daiki Tomojiri   +2 more
doaj   +1 more source

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