J 2022

Ecological specialization and reproductive isolation among closely related sympatric ant-eating spiders

PEKÁR, Stanislav, David ORTIZ MARTÍNEZ, Lenka SENTENSKÁ a Ondrej ŠEDO

Základní údaje

Originální název

Ecological specialization and reproductive isolation among closely related sympatric ant-eating spiders

Autoři

PEKÁR, Stanislav (703 Slovensko, garant, domácí), David ORTIZ MARTÍNEZ (724 Španělsko, domácí), Lenka SENTENSKÁ (203 Česká republika, domácí) a Ondrej ŠEDO (203 Česká republika, domácí)

Vydání

Journal of Animal Ecology, Wiley, 2022, 0021-8790

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10613 Zoology

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 4.800

Kód RIV

RIV/00216224:14310/22:00127389

Organizační jednotka

Přírodovědecká fakulta

DOI

UT WoS

000823297300001

Klíčová slova anglicky

Araneae; biological divergence; myrmecophagy; reproductive isolation; specialization; Zodarion

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 10. 10. 2024 15:06, Ing. Martina Blahová

Anotace

V originále

Biological divergence results from several mechanisms. Defensive mechanisms, such as Batesian mimicry, can cause reproductive isolation via temporal segregation in foraging activity, particularly, in species that closely associate with their model. This seems to be the case of ant-eating spiders, which can be inaccurate Batesian mimics of their prey. Here, we focused on Zodarion nitidum, which has two forms occurring in sympatry, black and yellow. Given the expected noticeable impact of their colour differences on the spiders' interactions with their potential predators and prey, we investigated whether these morphotypes have diverged in other aspects of their biology. We measured the two morphotypes' phenotypic resemblance to a mimetic model, tested whether they were protected from predators, investigated their circadian activity, surveyed the prey they hunted, modelled their distributions, performed crossing experiments and estimated their degree of genetic differentiation. We found that the black morphotype is ant-like, resembling Messor ants, and it was not distinguishable from their ant models by four potential predators. In contrast, the yellow morphotype seems to use predator avoidance as a defensive strategy. Additionally, the two morphotypes differ in their circadian activity, the yellow morphotype being nocturnal and the black one being diurnal. The two morphotypes hunt and associate with different ant prey and possess marked differences in venom composition. Finally, crossing trials showed complete pre-mating isolation between the two morphotypes, but there was no evidence of genetic (mitochondrial data) or environmental niche differentiation. We conclude that the two morphotypes show evidence of a deep differentiation in morphological, behavioural, physiological and ecological traits that evolved together as part of the spider's diverging lifestyles.

Návaznosti

EF16_027/0008360, projekt VaV
Název: Postdoc@MUNI
GA19-09323S, projekt VaV
Název: Mimetické komplexy a evoluce nepřesných mimetiků
Investor: Grantová agentura ČR, Mimetic complexes and the evolution of inaccurate mimics
GA22-20229S, projekt VaV
Název: Evoluce potravní specializace u myrmekofágních pavouků
Investor: Grantová agentura ČR, Evoluce potravní specializace u myrmekofágních pavouků
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
LQ1601, projekt VaV
Název: CEITEC 2020 (Akronym: CEITEC2020)
Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, CEITEC 2020
90127, velká výzkumná infrastruktura
Název: CIISB II