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4篇 您的检索式:作者名="Daniel FRYNTA"
    题名 作者 年代 出处 被引量
1Are genetically distinct lizard species able to hybridize? A review显示文摘Jitka JANCUCHOVA-LASKOVA Eva LANDOVA Daniel FRYNTA 2015Current Zoology2015,61,1:1
2Morphological characteristics of blood cells in monitor lizards:is erythrocyte size linked to actual body size?显示文摘Blood cell morphology and count are not uniform across species.Recently,between-species comparisons revealed that the size of red blood cells is associated with body size in some lizard taxa,and this finding was interpreted in the context of the metabolic theory.In the present study,we examined the numbers and the size of blood cells in 2 species of monitor lizards,the mangrove-dwelling monitor(Varanus indicus)and the savannah monitor(V.exanthematicus),and we compared these traits in individuals of different body size.The results revealed that during the course of ontogeny,the size of red blood cells increases with body mass.Because the mass-specific metabolic rate decreases with body size and the cell volume-to-surface ratio decreases with the cell size,changes in the erythrocyte size might be the result of oxygen transport adjustment.Petra FRÝDLOVÁ Jan HNÍZDO Lenka CHYLÍKOVÁ OlgaŠIMKOVÁ Veronika CIKÁNOVÁ Petr VELENSKÝ Daniel FRYNTA 2013Integrative Zoology2013,8,1:0
3Antipredatory reaction of the leopard gecko Eublepharis macularius to snake predators显示文摘Eva LANDOVA Veronika MuslLovA Jakub POLAK Kristyna SEDLACKOVA Daniel FRYNTA 2016Current Zoology2016,62,5:0
4Does reproductive mode affect sexually-selected coloration?Evaluating UV-blue spots in parthenogenetic and bisexual lizards of the genus Darevskia显示文摘Sexual selection often leads to evolution of conspicuous signals,raising the chances of attracting not only potential mates,but also predators.In lacertid lizards,ultraviolet(UV)-blue spots on flanks and shoulders represent such a trait.Some level of correlation between male and female ornamen-tation is also known to exist.Therefore,the phenotype of females may change in the absence of sexual selection.We tested this hypothesis on a complex of parthenogenetic and bisexual lizards of the genus Darevskia.We evaluated area,counts,and chromatic properties(UV opponency,sat-uration)of UV-blue spots and compared the values between the clones and their bisexual progeni-tor species.We found a fair heterogeneity between the parthenogenetic species,but no general tendency toward higher crypsis or conspicuousness.Values of the parthenogens were not signifi-cantly different from the values of sexual females.A possible explanation is that the changes in se-lective forces associated with parthenogenetic reproduction are too small to affect the resulting pattern of selective pressures on the studied traits,or that the phenotypes of the parthenogens re-sult from the unique combination of parental genomes and are conserved by clonal reproduction.Andran ABRAMJAN Marine ARAKELYAN Daniel FRYNTA 2021Current Zoology2021,67,2:0
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