Results 31 to 40 of about 5,773 (139)
Integrative Zoology, EarlyView.Social rank in greater long‐tailed hamsters (Tscherskia triton) shapes gut microbiota composition and metabolite profiles. Dominant males exhibit a “high‐vigilance, metabolically activated” phenotype, with elevated aggression and specific gut microbiota enriched in energy‐harvesting taxa and fecal queuine.
Da Zhang, Xiaoming Xu, Zhibin Zhang
wiley +1 more source
Can Food Acquisition Priority Alter Emotion, Physiological Responses, and Social Rank in Fish?
Integrative Zoology, EarlyView.We tested whether a cichlid fish perceives inequitable food distribution by manipulating feeding order. Priority‐fed individuals consumed more, had higher condition factors, and exhibited lower whole‐body cortisol than delayed‐fed fish, while personality, metabolism, dopamine, and social rank did not differ.
Dongxing Tan +3 more
wiley +1 more source
Brazilian Journal of BiologyThe 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
Gut Microbiome Functional Reprogramming Reflects Divergent Social Strategies in a Wild Primate
Integrative Zoology, EarlyView.Wild golden snub‐nosed monkeys employ divergent social strategies, forming reproductive one‐male units and bachelor all‐male units. We reveal that these social structures, intertwined with seasonal diets, drive distinct functional reprogramming in their gut microbiomes. This adaptive microbial plasticity plays a crucial role in primate socio‐ecological
Guanwei Lan +11 more
wiley +1 more source
Frontiers 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
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Acta Zoologica, EarlyView.ABSTRACT This study presents a formal description and taxonomic appraisal of Cacatuocotyle adrianoi sp. n., a Neotropical parasite belonging to the family Dactylogyridae, integrating AI‐assisted morphometric analyses, molecular data, and phylogenetic reconstruction. Phylogenetic analyses recovered Cacatuocotyle adrianoi sp. n.
J. C. C. Aguiar +4 more
wiley +1 more source
Cladistics, EarlyView.Abstract Replicated pairs of ancestral and evolutionarily derived populations provide opportunities to test hypotheses about the deterministic laws of evolution. The Asellus aquaticus species complex is an invertebrate model system with several independent surface‐to‐cave transitions and a complicated and unresolved evolutionary history.
Peter Trontelj +3 more
wiley +1 more source
Habitat Choice as a Function of Lighting Environment in Bluefin Killifish
Ethology, EarlyView.This experiment tested habitat preference in bluefin killifish as a function of lighting environment for fish from a swamp and a spring population. Swamps are red‐shifted habitats and springs are full spectrum. Fish from the swamp population preferred the red‐shifted lighting environment, while spring fish were tolerant of both lighting environments ...
Adeline M. Volz, Rebecca C. Fuller
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Uniciencia, 1992 Se investigó el efecto del cultivo en alta densidad sobre la tasa de crecimiento de juveniles de guapote tigre. Mientras que la tasa de crecimiento promedio disminuye con la densidad, el crecimiento de los peces más grandes no resultó afectado. Con altas
Jorge Günther Nonell +1 more
doaj
BMC Evolutionary Biology, 2019 Background Cichlids are a prime model system in evolutionary research and several of the most prominent examples of adaptive radiations are found in the East African Lakes Tanganyika, Malawi and Victoria, all part of the East African cichlid radiation ...
Frederic Dieter Benedikt Schedel +2 more
doaj +1 more source