WebbАмпле́ксус (от лат. amplexus «объятие») — форма псевдокопуляции, наблюдаемая у амфибий и мечехвостов, во время которой самец обхватывает самку своими передними конечностями. В то же время или с некоторой задержкой он оплодотворяет своей спермой икру, которую мечет самка. Содержание 1 … WebbAlthough axillary amplexus clearly is the plesiomorphic condition in Incilius (and indeed New World toads in general), the documentation of inguinal amplexus in I. fastidiosus …
¿Qué es Amplexus? – Definición y descripción general
Webb5 juli 2012 · The organ is located just in front of the kidney (mesonephros). It is formed at the cranial tip of the male and female gonad during the larval stage. Normally it is inactive and contains miniature follicles which have the capability to mature (becoming active). WebbAmplexus lombaire : chez les espèces d'anoures primitifs phylogénétiquement subordonnés aux Archaeobatrachia (archéobatraciens) et Mesobatrachia (mésobatraciens), le mâle accroche ses pattes avants dans la région de la hanche ou lombaire de la femelle, donc devant les pattes postérieures, ce qu'on appelle … tia portal readiness check tool
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Webb26 nov. 2024 · 128 ‘gular amplexus’ definition by Jungfer et al., (2013), which refers to a type of amplexus 129 where the male clasps the female exclusively around her throat. … Many types of amplexus are identified in the literature. However, two types of amplexus are more common than others, known as inguinal and axillary amplexus. These two types of amplexus have been classified based on the position of the male amphibian relative to the female. When a male amphibian clasps … Visa mer Amplexus (Latin "embrace") is a type of mating behavior exhibited by some externally fertilizing species (chiefly amphibians and horseshoe crabs) in which a male grasps a female with his front legs as part of the mating … Visa mer Anurans Amplexus chiefly occurs aquatically, but some terrestrial anurans (frogs and toads) like the disc-tongued frogs (Discoglossidae) perform amplexus … Visa mer Fossil evidence suggests that a certain euthycarcinoid (an extinct arthropod) from the Cambrian may also have mated by amplexus. Visa mer • Amplexus in Action Visa mer Physiology Amplexus has been found to involve different muscles in both male and female amphibians. The forelimb muscles in both males and females have been identified as the key muscles for amplexus that most species use. These … Visa mer Amplexus occurs in all four species of horseshoe crab. Horseshoe crabs typically go ashore for amplexus in high tide, and end up on beaches where the eggs are more protected. The … Visa mer • Nuptial pad – Secondary sex characteristic on some mature male frogs and salamanders Visa mer Webb23 mars 2011 · The male climbs atop the back of the female, grasping her with his forelimbs, either just behind her forelimbs (axillary amplexus) or around the waist (inguinal amplexus). Amplexus may begin... tia portal lower_bound