Animal Behaviour
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#1Andrew G. Horn (Dal: Dalhousie University)H-Index: 26
#2Marley Aikens (Dal: Dalhousie University)
Last. Marty L. Leonard (Dal: Dalhousie University)H-Index: 34
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Anthropogenic noise is increasing in intensity and scope, raising concern over its effects on wildlife populations. Laboratory studies suggest that exposure to elevated noise can interfere with the development of a young animal's ability to process social signals and, ultimately, its ability to communicate as an adult. Whether such effects occur in nature is unknown, however. Here, we present the first field experiments examining whether elevated noise affects the development of the ability to d...
#1Maria Santacà (UNIPD: University of Padua)H-Index: 1
#2Tyrone Lucon-Xiccato (University of Ferrara)H-Index: 3
Last. Christian Agrillo (UNIPD: University of Padua)H-Index: 25
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An optimal foraging strategy often requires identifying and choosing the larger amount of food in the presence of multiple options, in order to maximize food intake. Food quantity estimation frequently depends on the perceptual ability to segregate food from the surrounding background. In human and nonhuman animals, it has recently been shown that the perception of food size is affected by the size of the background on which food is presented, with a tendency to overestimate food items encircled...
#1O. O'Brien (UMassD: University of Massachusetts Dartmouth)
#2Simon J. Allen (UoB: University of Bristol)H-Index: 22
Last. Richard C. Connor (UMassD: University of Massachusetts Dartmouth)H-Index: 41
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Individuals and groups within the same population may differ in their use of resources. Also referred to as niche specialization, such differences can be documented through direct or indirect observation of resource or habitat use. Here, we examined selective habitat use in alliance-forming male Indo-Pacific bottlenose dolphins, Tursiops aduncus, in Shark Bay, Western Australia. Using 6 years of sighting data (2001–2006), we calculated the home ranges of 17 male alliances (comprising 3–14 indivi...
#2Lea Prox (University of Konstanz)
Last. Lysanne SnijdersH-Index: 9
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Social relationships can have important fitness consequences. Although there is increasing evidence that social relationships carry over across contexts, few studies have investigated whether relationships formed early in life are carried over to adulthood. For example, juveniles of monogamous species go through a major life history stage transition, pair formation, during which the pair bond becomes a central unit of the social organization. At present, it remains unclear whether pair members r...
#1Sarah E. Nason (UQAM: Université du Québec à Montréal)
#2Clint D. Kelly (UQAM: Université du Québec à Montréal)H-Index: 20
Mating with multiple partners is common across animal taxa. Males mate multiply because reproductive success positively correlates with mating success. In contrast, multiple mating is expected to increase the direct (material) or indirect (genetic) benefits accrued by females but not necessarily increase their reproductive success. Cases in which female reproductive success increases with mating success could be due to females acquiring material resources that directly increase reproductive outp...
#1Kristina Barbara Beck (University of Vienna)H-Index: 3
Last. Thomas Bugnyar (University of Vienna)H-Index: 37
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The storage of food is widespread among mammals and birds and can be flexibly adjusted to various contexts such as competition, food availability or energetic demands. In bird species, nonbreeders often move through large areas whereby periods of long-term settlement can alternate with short-term visits. In food-caching species these differences in the degree of local settlement might change the benefits gained from storing food, and caching may only be advantageous during periods of prolonged s...
#1Janne K. Valkonen (University of Jyväskylä)H-Index: 10
#2Annu Vakkila (University of Oulu)
Last. Johanna Mappes (University of Jyväskylä)H-Index: 46
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Antipredator adaptations in the form of animal coloration are common and often multifunctional. European vipers (genus Vipera) have a characteristic dorsal zigzag pattern, which has been shown to serve as a warning signal to potential predators. At the same time, it has been suggested to decrease detection risk, and to cause a motion dazzle or flicker–fusion effect during movement. We tested these hypotheses by asking whether (1) the zigzag pattern decreases detection risk and (2) the detection ...
#1Andrea L. Baden (Hunter College)H-Index: 16
#2Timothy H. Webster (UofU: University of Utah)H-Index: 8
Last. Brenda J. Bradley (GW: George Washington University)H-Index: 20
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Fission–fusion social dynamics are common among a number of vertebrate taxa, and yet the factors shaping these variable associations among subgroup members have not been widely addressed. Associations may occur simply because of shared habitat preferences; however, social ties may also be influenced by genetic relatedness (kinship) or social attraction. Here, we investigate the association patterns of wild black-and-white ruffed lemurs, Varecia variegata, in Ranomafana National Park, Madagascar ...
#1Michael L. Casazza (USGS: United States Geological Survey)H-Index: 18
#2Fiona McDuie (Moss Landing Marine Laboratories)H-Index: 1
Last. Joshua T. Ackerman (USGS: United States Geological Survey)H-Index: 30
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Breeding success should increase with prior knowledge of the surrounding environment, which is dependent upon an animal's ability to evaluate habitat. Prospecting for nesting locations and migratory stopover sites are well-established behaviours among bird species. We assessed whether three species of California dabbling ducks – mallards, Anas platyrhynchos, gadwall, Mareca strepera, and cinnamon teal, Spatula cyanoptera – in Suisun Marsh, California, U.S.A., a brackish marsh, prospect for suita...
#1Miguel A. Rodríguez-Gironés (CSIC: Spanish National Research Council)H-Index: 19
#2Michelle Maldonado (UNAM: National Autonomous University of Mexico)
Some crab spiders can change their colour to match the flower they use as a hunting platform and, in choice trials, they select same-colour flowers over contrasting flowers. Colour change is a costly physiological process that could help spiders capture more prey or avoid predators. There is no evidence, however, that crypsis increases the hunting success of spiders, and its effect on predator avoidance has not been studied. To evaluate the effect of crypsis on predation rate we tethered yellow ...
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