J 2020

Biting and binding: an exclusive coercive mating strategy of males in a philodromid spider

SENTENSKÁ, Lenka, Ondrej ŠEDO a Stanislav PEKÁR

Základní 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

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 10. 10. 2024 13:48, 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

LM2018127, projekt VaV
Název: Česká infrastruktura pro integrativní strukturní biologii (Akronym: CIISB)
Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, Czech Infrastructure for Integrative Structural Biology
90127, velká výzkumná infrastruktura
Název: CIISB II