Search results for "Natrix maura"

showing 3 items of 3 documents

Strongyloides natricissp. n. (Strongyloididae), un nouveau nématode parasite deNatrix maura(L. 1758) (Colubridae) en Espagne

1993

Description d’une nouvelle espece de Nematode Strongyloididae, Strongyloides natricis sp. n. trouvee chez Natrix maura (L. 1758) (Colubridae), capturee a Mora de Rubielos, Teruel, Espagne. L’espece presente entre autres caracteres distinctifs une plus grande taille corporelle et des longueurs oesophagienne et caudale proportionnellement inferieures a celles de toutes les autres especes de ce genre.

NematodeOphidiaZoologyParasite hostingParasitologyTaxonomy (biology)Biologybiology.organism_classificationNatrix mauraAnnales de Parasitologie Humaine et Comparée
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Antipredatory function of head shape for vipers and their mimics.

2011

Most research into the adaptive significance of warning signals has focused on the colouration and patterns of prey animals. However, behaviour, odour and body shape can also have signal functions and thereby reduce predators' willingness to attack defended prey. European vipers all have a distinctive triangular head shape; and they are all venomous. Several non-venomous snakes, including the subfamily Natricinae, commonly flatten their heads (also known as head triangulation) when disturbed. The adaptive significance of this potential behavioural mimicry has never been investigated. We experimentally tested if the triangular head shape typical of vipers offers protection against predation.…

kyykäärmeetModels AnatomicScience PolicyAnimal TypesPopulation Dynamicslcsh:MedicineZoologyBiologybehavioural mimicryHead shapePredationkäärmeetBehavioral EcologyNatrix mauraPredator-Prey DynamicsViperaSubfamily NatricinaeViperidaeAnimalsaposematismAnimal behaviorlcsh:ScienceBiologyAnimal ManagementsnakeEvolutionary BiologyMultidisciplinaryAnimal BehaviorEcologyPopulation BiologyEcologyta1184lcsh:RAgricultureBioethicsTriangular head shapeSpecies InteractionsCommunity EcologyEvolutionary EcologyPredatory BehaviorMimicryAnimal Studiesta1181lcsh:QVeterinary ScienceZoologyResearch ArticlePloS one
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Antipredatory Function of Head Shape for Vipers and Their Mimics

2011

Most research into the adaptive significance of warning signals has focused on the colouration and patterns of prey animals. However, behaviour, odour and body shape can also have signal functions and thereby reduce predators' willingness to attack defended prey. European vipers all have a distinctive triangular head shape; and they are all venomous. Several non-venomous snakes, including the subfamily Natricinae, commonly flatten their heads (also known as head triangulation) when disturbed. The adaptive significance of this potential behavioural mimicry has never been investigated. We experimentally tested if the triangular head shape typical of vipers offers protection against predation.…

snakeNatrix mauraViperaaposematismbehavioural mimicry
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