Night reveals individuality in a shoaling fish
نویسندگان
چکیده
منابع مشابه
How predation shapes the social interaction rules of shoaling fish
Predation is thought to shape the macroscopic properties of animal groups, making moving groups more cohesive and coordinated. Precisely how predation has shaped individuals' fine-scale social interactions in natural populations, however, is unknown. Using high-resolution tracking data of shoaling fish (Poecilia reticulata) from populations differing in natural predation pressure, we show how p...
متن کاملInferring the rules of interaction of shoaling fish.
Collective motion, where large numbers of individuals move synchronously together, is achieved when individuals adopt interaction rules that determine how they respond to their neighbors' movements and positions. These rules determine how group-living animals move, make decisions, and transmit information between individuals. Nonetheless, few studies have explicitly determined these interaction...
متن کاملExotic invaders gain foraging benefits by shoaling with native fish
Freshwater habitats are under increasing threat due to invasions of exotic fish. These invasions typically begin with the introduction of small numbers of individuals unfamiliar with the new habitat. One way in which the invaders might overcome this disadvantage is by associating with native taxa occupying a similar ecological niche. Here we used guppies (Poecilia reticulata) from a feral popul...
متن کاملIndividuality in Fish Behavior: Ecology and Comparative Psychology
This work is a brief review of a series of studies of the phenotypic organization and ecological significance of individual differences in fish behavior. The following species were studied: guppy Poecilia retuculata, lion-headed cichlid Steatocranus cassuarius, and the convict cichlid Archocentrus nigrofasciatum. We developed methods for the analysis of individual differences in fish behavior a...
متن کاملBenefits of kin shoaling in a cichlid fish: familiar and related juveniles show better growth
Group living is widespread in animals. In nature, groups usually not only differ in phenotypic characteristics but also in the social relationships among group members. Theory predicts that individuals adjusting their shoaling decisions—to join certain groups or not—based on social criteria, such as familiarity or genetic relatedness, can increase their fitness. Although numerous studies report...
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ژورنال
عنوان ژورنال: Behavioral Ecology
سال: 2019
ISSN: 1045-2249,1465-7279
DOI: 10.1093/beheco/arz015