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Polygynandry is a mating system in which both males and females have multiple mating partners during a breeding season. [1] In sexually reproducing diploid animals, different mating strategies are employed by males and females, because the cost of gamete production is lower for males than it is for females. [2]
Polygyny (/ p ə ˈ l ɪ dʒ ɪ n i /; from Neo-Greek πολυγυνία, from πολύ-(polú-) 'many' and γυνή (gunḗ) 'woman, wife') [1] is a mating system in which one male lives and mates with multiple females but each female only mates with a single male.
Polygyny (the most common polygamous mating system in vertebrates so far studied): One male has an exclusive relationship with two or more females. This is associated with one-male, multi-female group compositions. Many perennial Vespula squamosa (southern yellowjacket) colonies are polygynous. [3]
Female (left) and male (right) Argiope appensa, displaying typical sexual differences in spiders, with dramatically smaller males Hammock Spiders (Pityohyphantes sp.) courting. Female left and male right. Many arachnid groups exhibit sexual dimorphism, [46] but it is most widely studied in the spiders.
In animal behavior, resource defense polygyny is a mating strategy where a male is able to support multiple female mates by competing with other males for access to a resource. [1] [2] In such a system, males are territorial. Because male movement is restricted, female-female competition for a male also results.
Polygyny is where one male mates with several females in a breeding season (e.g., lions, deer, some primates, and many systems where there is an alpha male). [1] A common example of polyandrous mating can be found in the field cricket ( Gryllus bimaculatus ) of the invertebrate order Orthoptera (containing crickets, grasshoppers, and ...
Elephants can use their ears as threat displays in male-to-male competition. Sexual selection in mammals is a process the study of which started with Charles Darwin's observations concerning sexual selection, including sexual selection in humans, and in other mammals, [1] consisting of male–male competition and mate choice that mold the development of future phenotypes in a population for a ...
Polyandry (/ ˈ p ɒ l i ˌ æ n d r i, ˌ p ɒ l i ˈ æ n-/; from Ancient Greek πολύ (polú) 'many' and ἀνήρ (anḗr) 'man') is a form of polygamy in which a woman takes two or more husbands at the same time.