Results 31 to 40 of about 4,812 (177)
Social deprivation affects cooperative predator inspection in a cichlid fish [PDF]
Royal Society Open Science, 2015 The social environment individuals are exposed to during ontogeny shapes social skills and social competence in group-living animals. Consequently, social deprivation has serious effects on behaviour and development in animals but little is known about ...
Saskia Hesse +3 more
doaj +1 more source
The Midas cichlid species complex: incipient sympatric speciation in Nicaraguan cichlid fishes? [PDF]
Molecular Ecology, 2004 AbstractSympatric speciation is a contentious concept, although theoretical models as well as empirical evidence support its relevance in evolutionary biology. The Midas cichlid species complex (Amphilophus citrinellus,labiatus,zaliosus) from several crater lakes in Nicaragua fits several of the key characteristics of a sympatric speciation model.
Barluenga, Marta, Meyer, Axel
openaire +3 more sources
Cuadernos de investigación UNED, 2015 Disease is an important factor in fisheries, affecting both wild and cultured species. Using standard parasitological techniques we determined the prevalence, mean intensity and abundance of endoparasites from 250 specimens of two cichlids, Oreochromis ...
C. Ebube Amaechi
doaj +1 more source
Nature Communications, 2019 Recent studies have suggested that hybridization can facilitate adaptive radiations. Here, the authors show that opportunity for hybridization differentiates Lake Mweru, where cichlids radiated, and Lake Bangweulu, where cichlids did not radiate despite ...
Joana I. Meier +9 more
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Water Biology and Security, 2023 The introduction of species is a leading cause of biodiversity loss and habitat alteration. Several species have invaded Mexican freshwater ecosystems, adversely affecting native fishes.
M. Franco +4 more
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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
Population Genetic Structure of Three Cichlids in Ilorin, North-Central Nigeria
The Iraqi Journal of Veterinary Medicine, 2022 Cichlids are among the economically important which serve as a source of food for people around the world. A deep understanding of the population structure and genetic diversity of cichlids are vital for initiation of conservation policies and
Oluyinka A Iyiola +7 more
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Integrative Zoology, EarlyView.Integrating comparative spectrometry, image analysis, and thermal modeling, we reveal that (1) females optimize crypsis via background matching, (2) males prioritize high‐contrast disruptive patterning at a significant thermoregulatory cost (reduced solar heat gain), and (3) habitat‐specific monomorphism in Diploderma slowinskii underscores ecological ...
Yuning Cao, Lin Shi, Yin Qi
wiley +1 more source
Czech Journal of Animal Science, 2004 Feeding selectivity of Nile tilapia (Oreochromis niloticus L.) juveniles (9.3-20.9 g) to four aquatic macrophyte species and tilapia growth were studied in 4 consecutive experiments. Plant diet was provided to 8 tanks containing 20 fishes for 5 days. The
I. Šetlíková, Z. Adámek
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Helminthologia, 2020 We recorded the metazoan parasite communities in three endemic cichlids (Chiapaheros grammodes, Vieja breidohri and V. hartwegi) collected between November 2008 and July 2009 in the upper Grijalva River Basin (GRB), Chiapas, Mexico.
Paredes-Trujillo A. +3 more
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