2020
Biting and binding: an exclusive coercive mating strategy of males in a philodromid spider
SENTENSKÁ, Lenka, Ondrej ŠEDO a Stanislav PEKÁRZákladní údaje
Originální název
Biting and binding: an exclusive coercive mating strategy of males in a philodromid spider
Autoři
SENTENSKÁ, Lenka (203 Česká republika, garant, domácí), Ondrej ŠEDO (203 Česká republika, domácí) a Stanislav PEKÁR (703 Slovensko, domácí)
Vydání
Animal Behaviour, London, Academic Press Ltd - Elsevier Science Ltd, 2020, 0003-3472
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10613 Zoology
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 2.844
Kód RIV
RIV/00216224:14310/20:00117091
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000581858400009
Klíčová slova anglicky
bridal veil; female resistance; forced copulation; venom
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 2. 11. 2024 20:25, Ing. Martina Blahová
Anotace
V originále
Males typically court females extensively to convince them to mate. In some species, however, males coerce females to mate. We studied mating behaviour in the spider Thanatus fabricii and focused on behavioural and venomic adaptations. We found that males always bit and bound females before and during mating. The bitten females quickly fell into a state of immobility, during which males copulated with them. The duration of male bites increased with increasing size of the female. In contrast, male bites were shorter if the female was missing legs. Additionally, males with relatively longer legs induced longer states of immobility in females. Binding by silk prolonged the state of immobilization, allowing males to perform more insertions. After copulation, females were less successful in catching their prey (ants), suggesting that this mating strategy negatively affects female fitness. Altogether, this evidence shows that mating in T. fabricii is coercive. Males of T. fabricii had relatively larger venom glands than both conspecific females and males of closely related Philodromus species, which court females. The composition of venom, however, did not differ between the sexes. Male venom glands appear to be adapted to coercive mating rather than to foraging, as they caught fewer prey than closely related species. We suggest that coercive mating in T. fabricii may be enabled by venomic adaptation in the males.
Návaznosti
90127, velká výzkumná infrastruktura |
|