| perivascular lymphoid tissue associated with the axillary lymph sinus and the lateral vein of gehyra variegata (reptilia:gekkonidae). | | 1973 | 4708449 |
| the tales of two geckos: does dispersal prevent extinction in recently fragmented populations? | although habitat loss and fragmentation threaten species throughout the world and are a major threat to biodiversity, it is apparent that some species are at greater risk of extinction in fragmented landscapes than others. identification of these species and the characteristics that make them sensitive to habitat fragmentation has important implications for conservation management. here, we present a comparative study of the population genetic structure of two arboreal gecko species (oedura reti ... | 2007 | 17688534 |
| gekkonid lizards: average ages derived from tail-loss data. | information on the rate of tail loss by autotomy, obtained from mark and recapture data, was used to estimate the average ages of adult individuals of the geckos gehyra variegata and heteronota binoei; the ages calculated were 4.4 and 1.9 years, respectively. | 1966 | 17802639 |
| taxonomic revision of the australian arid zone lizards gehyra variegata and g. montium (squamata, gekkonidae) with description of three new species. | the taxonomy of central australian populations of geckos of the genus gehyra has been uncertain since chromosomal studies carried out in the 1970s and 1980s revealed considerable heterogeneity and apparently independent patterns of morphological and karyotypic diversity. following detailed molecular genetic studies, species boundaries in this complex have become clearer and we here re-set the boundaries of the three named species involved, g. variegata (duméril & bibron, 1836), g. montium storr, ... | 2014 | 24943424 |
| morphological differentiation correlates with ecological but not with genetic divergence in a gehyra gecko. | body size affects life history, the ecological niche of an organism and its interactions with other organisms. resultantly, marked differences in body size between related organisms are often an indication of a species boundary. this is particularly evident in the gehyra variegata species complex of geckos, which displays differential body sizes between genetically divergent species, but high levels of intraspecific morphological conservatism. we report on a gehyra population that displays extra ... | 2012 | 22269015 |
| reliability of different mark-recapture methods for population size estimation tested against reference population sizes constructed from field data. | reliable estimates of population size are fundamental in many ecological studies and biodiversity conservation. selecting appropriate methods to estimate abundance is often very difficult, especially if data are scarce. most studies concerning the reliability of different estimators used simulation data based on assumptions about capture variability that do not necessarily reflect conditions in natural populations. here, we used data from an intensively studied closed population of the arboreal ... | 2014 | 24896260 |
| the ultrastructure of a haemogregarine parasitic in gehyra variegata (duméril & bibron, 1836). | | 1967 | 4962149 |
| diversification across biomes in a continental lizard radiation. | ecological opportunity is a powerful driver of evolutionary diversification, and predicts rapid lineage and phenotypic diversification following colonization of competitor-free habitats. alternatively, topographic or environmental heterogeneity could be key to generating and sustaining diversity. we explore these hypotheses in a widespread lineage of australian lizards: the gehyra variegata group. this clade occurs across two biomes: the australian monsoonal tropics (amt), where it overlaps a se ... | 2018 | 29972238 |
| analysing the effect of movement on local survival: a new method with an application to a spatially structured population of the arboreal gecko gehyra variegata. | mortality during movement between habitat patches is the most obvious cost of dispersal, but rarely it has been demonstrated empirically. an approach is presented, which uses capture-mark-recapture data of an arboreal gecko species to determine the effect of individual movement on local survival in a spatially structured population. because capture-mark-recapture data are widely available for a range of animal species, it should be possible to extend their application to other species. the metho ... | 2008 | 17938971 |
| conspicuously concealed: revision of the arid clade of the gehyra variegata (gekkonidae) group in western australia using an integrative molecular and morphological approach, with the description of five cryptic species. | the methods used to detect and describe morphologically cryptic species have advanced in recent years, owing to the integrative nature of molecular and morphological techniques required to elucidate them. here we integrate recent phylogenomic work that sequenced many genes but few individuals, with new data from mtdna and morphology from hundreds of gecko specimens of the gehyra variegata group from the australian arid zone. to better understand morphological and geographical boundaries among cr ... | 2018 | 30038877 |
| fine structure of the schizont and merozoite of isospora sp. (sporozoa: eimeriidae) parasitic in gehyra variegata (dumeril and bibron, 1836) (repitlia: gekkonidae). | | 1967 | 5629074 |
| does low gas permeability of rigid-shelled gekkotan eggs affect embryonic development? | parchment-shelled eggs are characteristic of most squamates, including the basal clades of gekkotan lizards. the majority of gekkotan lizards, however, produce rigid-shelled eggs that are highly impermeable to gas exchange; eggs are laid in dry sites and experience a net loss of water during incubation. we tested the hypothesis that the 1,000-fold lower rate of oxygen diffusion through the shells of rigid- compared to parchment-shelled eggs imposes a physiological cost on development. to do this ... | 2013 | 23495191 |
| new species of choleoeimeria (apicomplexa: eimeriidae), coccidia of bile-bladders of reptiles, illustrating a multiplicity of host cell-parasite interrelations. | oocyst characteristics and histological features of the endogenous development of bile-bladder coccidia of the genus choleoeimeria paperna and landsberg, 1989 are described and the main features for species differentiation are discussed for the following new species: c. allogamae n. sp. from agama sp., cameroon, west africa; c. allogehyrae n. sp. from gehyra australis, magnetic island (type) and mainland n queensland, australia; c. boulii n. sp. from gehyra variegata, sw queensland, australia; c ... | 2007 | 18412050 |