Search results for " group living"

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Diseased Social Predators

2017

Social predators benefit from cooperation in the form of increased hunting success, but may be at higher risk of disease infection due to living in groups. Here, we use mathematical modeling to investigate the impact of disease transmission on the population dynamics benefits provided by group hunting. We consider a predator-prey model with foraging facilitation that can induce strong Allee effects in the predators. We extend this model by an infectious disease spreading horizontally and vertically in the predator population. The model is a system of three nonlinear differential equations. We analyze the equilibrium points and their stability as well as one- and two-parameter bifurcations. …

Genetics and Molecular Biology (all)0106 biological sciences0301 basic medicinegenetic structuresPopulation DynamicsBasic Reproduction NumberBiochemistry01 natural sciencesCommunicable DiseasePredationMathematical modelBehavioral ecologyCooperative BehaviorPredatorMathematical ConceptGeneral Environmental ScienceAllee effectBehavioral ecology; Eco-epidemiology; Foraging facilitation; Group living; Hunting cooperation; Mathematical model; Neuroscience (all); Immunology; Mathematics (all); Biochemistry Genetics and Molecular Biology (all); 2300; Pharmacology; Agricultural and Biological Sciences (all); Computational Theory and Mathematicseducation.field_of_studyEco-epidemiologyEcologyGeneral Neuroscience010601 ecologyGroup livingComputational Theory and MathematicsFacilitationsymbolsLinear ModelGeneral Agricultural and Biological SciencesFood ChainGeneral MathematicsPopulationForagingImmunologyBehavioral ecologyBiologyCommunicable DiseasesModels BiologicalGeneral Biochemistry Genetics and Molecular Biology03 medical and health sciencessymbols.namesakeSettore MAT/08 - Analisi NumericaAnimalsMathematics (all)educationSocial BehaviorPharmacologyPopulation DynamicNeuroscience (all)Biochemistry Genetics and Molecular Biology (all)2300AnimalHunting cooperationSmall population sizeMathematical Concepts030104 developmental biologyForaging facilitationAgricultural and Biological Sciences (all)Predatory BehaviorLinear Models
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Asymmetrical interspecific communication in avian mixed species colonies

Sympatric species derive benefits by attending to information conveyed by heterospecifics. We previously reported reduced vigilance among jackdaws (Corvus monedula) and lesser kestrels (Falco numanni) residing in mixed species colonies and conducted the present study to test for interspecific communication of threat associated with European magpies (Pica pica) as nest predators. After quantifying structural differences in jackdaw and lesser kestrel calls relative to European magpie versus non-predator models, we played back calls of jackdaws and lesser kestrels representative of the different model types to test whether receivers perceive threat-related variation in either conspecific or he…

interspecific association alarm communication response urgency group living public information
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