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Bivalve or gastropod? Using profitability estimates to predict prey choice by P. clarkii
Springer Science and Business Media LLC - Tập 20 - Trang 107-117 - 2017
Recently, a highly invasive alien species, the zebra mussel Dreissena polymorpha, has colonized Italian aquatic ecosystems that had been previously colonized by another highly invasive alien species—the North American crayfish Procambarus clarkii. This was the first time and world region where these two species met. To evaluate the relative importance of their interactions, we studied prey selecti...... hiện toàn bộ
Synchrony during aggression in adult male Atlantic spotted dolphins (Stenella frontalis)
Springer Science and Business Media LLC - - 2017
Synchrony among Atlantic spotted dolphins (Stenella frontalis) is crucial for successfully overcoming bottlenose dolphins (Tursiops truncatus) during interspecies aggression (Cusick and Herzing 2014). The present study examined synchrony in adult Atlantic spotted dolphins during aggressive encounters with bottlenose dolphins. Across group size, aggressive behaviors increased preceding synchrony, p...... hiện toàn bộ
Altruistic behavior in mother-calf pairs of bottlenose dolphins (Tursiops truncatus) and the possible role of the social bond: a preliminary study
Springer Science and Business Media LLC - Tập 26 Số 1 - Trang 13-19 - 2023
Variation in Guiana dolphin parental care according to calf age class
Springer Science and Business Media LLC - Tập 21 - Trang 119-126 - 2018
An extended period of parental care is fundamental for survival of cetacean offspring. Although qualitative descriptions of parental care and mother-calf spatial relationships are available for several species, studies using a quantitative approach throughout development of offspring are scarce. Here, we analyzed how strategies of parental care occur during the ontogeny of the Guiana dolphin, Sota...... hiện toàn bộ
Temporal polyethism, life expectancy, and entropy of workers of the ant Ectatomma vizottoi Almeida, 1987 (Formicidae: Ectatomminae)
Springer Science and Business Media LLC - Tập 13 - Trang 23-31 - 2010
We investigated the changes in the behavioral repertoire over the course of life and determined the life expectancy and entropy of workers of the ant Ectatomma vizottoi. Newly emerged ants were individually marked with model airplane paint for observation of behaviors and determination of the age and life expectancy. Ants were divided into two groups: young and old workers. The 36 behaviors observ...... hiện toàn bộ
Correction to: Pregnant pipefish with a simple brooding surface lose less weight when carrying heavier eggs: evidence of compensation for low oocyte quality?
Springer Science and Business Media LLC - Tập 23 - Trang 49-49 - 2019
The original version of this article was incorrectly published with article title. The correct article title is shown above.
The fitness of the Brazilian damsel Stegastes fuscus is increased by sharing the territory with the dusky grouper Epinephelus marginatus
Springer Science and Business Media LLC - Tập 14 - Trang 97-102 - 2011
Stegastes fuscus and Epinephelus marginatus are known for co-habiting shelters. The damselfish S. fuscus uses the territory for nesting and must protect its eggs from grazers; the grouper E. marginatus is an omnivorous sit-and-wait predator. This study aims to evaluate the effect of juvenile groupers on the reproductive success of the Brazilian damsel. Twenty-five hours of underwater observations ...... hiện toàn bộ
Is dominance the only factor determining access to food in an agonistic context? An experiment with captive male mouflon
Springer Science and Business Media LLC - Tập 19 - Trang 69-79 - 2015
In fulfilling their daily activities, animals must expend the least amount of energy possible while feeding in order to optimise their energy balance. Food is removed by congeners as a result of exploitation competition. When a resource becomes limited, an increase in the probability of interference competition (direct competition for the resource) is triggered. While a high social rank may increa...... hiện toàn bộ
Starvation decreases behavioral consistency in a Neotropical harvestman
Springer Science and Business Media LLC - Tập 22 - Trang 203-208 - 2019
Consistent inter-individual differences in behavior have been shown in several animal groups, ranging from vertebrates to invertebrates. One of the most studied personality traits in animals is boldness, which is the tendency to expose to risky situations. Theory proposes that individuals’ state (e.g., body energy) would influence the expression of personality traits. In this study, we tested if b...... hiện toàn bộ
Analysis of conditional contingency using ACTUS2 with examples from studies of animal behavior
Springer Science and Business Media LLC - Tập 4 - Trang 73-80 - 2002
In this paper we present ACTUS2, the second version of ACTUS (Analysis of Contingency Tables Using Simulation). ACTUS2 has many new features, including analysis of data in which dependencies that make some combinations of properties impossible are hypothesized. Because ACTUS2 explicitly simulates such hypotheses, it can be used without loss of accuracy to analyze small amounts of data in large ta...... hiện toàn bộ
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