2022
Ecological specialization and reproductive isolation among closely related sympatric ant-eating spiders
PEKÁR, Stanislav, David ORTIZ MARTÍNEZ, Lenka SENTENSKÁ a Ondrej ŠEDOZákladní 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
UT WoS
000823297300001
Klíčová slova anglicky
Araneae; biological divergence; myrmecophagy; reproductive isolation; specialization; Zodarion
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 2. 11. 2024 21:09, 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 |
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GA19-09323S, projekt VaV |
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GA22-20229S, projekt VaV |
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LQ1601, projekt VaV |
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90127, velká výzkumná infrastruktura |
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