Publications

[a new endoparasitic microorganism from the gecko (hemidactylus turcicus)].		1958	13616607
the duplex nature of the retina of the nocturnal gecko as reflected in the electroretinogram.	the effect of light and dark adaptation on the electrical activity in two species of nocturnal gecko, hemidactylus turcicus and tarentola mauritanica was studied. the electroretinogram of both species changes from the scotopic type in the dark-adapted state to the photopic type after strong light adaptation. for the scotopic response fusion frequencies up to 18 flashes per sec. are obtained in both species. for the photopic response fusion frequencies up to 50 flashes per sec. are seen in tarent ...	1961	13723366
circadian rhythms and the effects of lighting on tonic immobility in two species of lizard (anolis carolinensis and hemidactylus turcicus).		1977	901368
ecological studies of chalcides ocellatus (forskal, 1775) and hemidactylus turcicus (linnaeus, 1758) from egypt with special reference to helminthic parasites.	chalcides ocellatus and hemidactylus turcicus are sympatric throughout most of their geographical distribution in egypt. their temporal activities, food items and feeding strategy are almost similar. chalcides ocellatus harboured 5 species of nematodes and one species of cestode, while hemidactylus turcicus harboured only 3 species of nematodes. two species of nematodes occurred in both hosts.	1995	7602157
microspectrophotometric and immunocytochemical identification of ultraviolet photoreceptors in geckos.	retinas of the nocturnal geckos, hemidactylus turcicus, hemidactylus garnotii, and teratoscincus scincus, were studied with microspectrophotometry and immunocytochemistry against various visual pigment epitopes to reveal uv-sensitive photoreceptors. from 6-20% of the thinner members of type c double photoreceptors, earlier believed to be blue-sensitive, were found to contain a uv-absorbing visual pigment with lambda max at 363-366 nm. the pigment had bleaching and dichroic properties typical of ...	1996	8737275
the fine structure of reptilian isospora species with intranuclear endogenous development.	the fine structure of the endogenous stages of five species of isospora of lacertile hosts is reviewed and compared. all species were intranuclear and were the following: i. deserti, from agama pallida from israel; i. cannoni, from diporiphora australis from queensland, australia; and new, yet undescribed species from hemidactylus turcicus from israel. heteronota binoei from queensland, and carlia rhomboidalis from queensland. in young infections the intranuclear parasitophorous vacuole (pv) mai ...	1998	10376285
oviducal structure in four species of gekkonid lizard differing in parity mode and eggshell structure.	oviducal structure was analysed in vitellogenic females from four species of gekkonid lizard exhibiting variation in parity mode and eggshell structure: hemidactylus turcicus (oviparous) which produces a hard, calcareous eggshell; saltuarius wyberba (oviparous) which produces a soft, parchment-like eggshell; and hoplodactylus maculatus and hoplodactylus duvaucelii (both viviparous). oviducts were analysed by light, scanning electron and transmission electron microscopy. the uterus exhibited diff ...	1998	9801266
ultrastructure of the uterus in an ovariectomized gecko (hemidactylus turcicus) after administration of exogenous estradiol.	the uterus of an oviparous gecko, hemidactylus turcicus, was analysed after ovariectomized females underwent a period of treatment (up to 14 days) with exogenous estradiol. analysis focused on the uterine mucosa, which is made up of an epithelial layer and an underlying lamina propria containing the shell glands. these tissues are thought to be responsible for secretion of the eggshell components and were thus chosen for analysis using transmission electron microscopy. in ovariectomized females, ...	2000	10607370
the guest playing host: colonization of the introduced mediterranean gecko, hemidactylus turcicus, by helminth parasites in southeastern louisiana.	parasite surveys of exotic hosts offer the opportunity to examine parasite colonization on different scales (i.e., host individual, host population, host species, and new geographic locality). ten helminths (macracanthorhynchus ingens, mesocestoides lineatus, oochoristica javaensis, haematoloechus varioplexus, mesocoelium monas, telorchis corti, cosmocercoides variabilis, oswaldocruzia leidyi, skrjabinoptera sp., and a larval acuariid nematode) were recovered from the exotic mediterranean gecko ...	2001	11780810
cryptosporidium sp. in a free ranging house gecko (hemidactylus turcicus) in israel.	a house gecko, hemidactylus turcicus, from an israeli locality was found infected by cryptosporidium sp. infection was recovered in the anterior gut, upon examination by a transmission electron microscope. it comprised from 2.9 x 3.3 microns undivided and 2.6-3.3 x 3.8-3.9 microns dividing meronts, 1.9-2.3 x 2.0-2.6 microns young macrogamonts, and a 3.3 x 3.9 microns sporulated oocyst containing in cross section 4 sporozoites and a residuum. oocyst dimensions were smaller and apparently not cons ...	2001	11921544
ultrastructural autoradiographic and immunocytochemical analysis of setae formation and keratinization in the digital pads of the gecko hemidactylus turcicus (gekkonidae, reptilia).	the modified subdigital scales of some lizards allow them to climb vertical surfaces. this is due to the action of millions of tiny setae present in the digital pads. setae are mainly composed of beta-keratin which may have some modality of aggregation similar to that of barbs and barbules of feathers. keratins and associated proteins are involved in the organization of setae. the formation of setae in the climbing pad lamellae of the gecko hemidactylus turcicus has been analyzed under the elect ...	2003	12921711
[helminth fauna of hemidactylus turcicus (linnaeus,1758) (turkish gecko) collected from hatay].	twenty two hemidactylus turcicus (turkish gecko) collected from hatay were examined for helminths between 2000-2008 years. as a result of this study, 2 helminth species (spauligodon laevicauda and macracanthorynchus catulinus) were found. this is the first time that these helminth species have been found in turkey.	2008	19156620
sarcocystis infecting reptiles in saudi arabia : 1--light and electron microscopic study on sarcocysts of sarcocystis turcicii sp. nov. infecting the gecko hemidactylus turcicus linnaeus.	in the present study, sarcocysts of a sarcocystis species infecting the gecko hemidactylus turcicus was investigated by light and transmission electron microscopy. six out of 26 (23%) h. turcicus were found to be infected with cysts of sarcocystis. examined muscle samples of different sites showed high intensity of infection in the tail and hind limb skeletal muscles. microscopically visible cysts reached a mean size of 80 x 720 mum. these cysts are characterized by a light microscopically thick ...	2009	19002716
when selection deceives phylogeographic interpretation: the case of the mediterranean house gecko, hemidactylus turcicus (linnaeus, 1758).	a previous study on hemidactylus turcicus based on mtdna makers indicated that this gecko has a middle-east origin, and that the current phylogeographic pattern is the result of a very rapid spread from the east to the west of the species' range. the same study identified two distinct mitochondrial lineages with low differentiation and genetic diversity. since h. turcicus is known to be closely associated to humanized environments, its present distribution range and phylogeography is frequently ...	2010	21167948
proximal testicular ducts of the mediterranean gecko (hemidactylus turcicus).	the efferent ducts of the mediterranean gecko, hemidactylus turcicus (gekkonidae) were investigated using light and electron microscopy. the seminiferous tubules unite into a single rete testis tubule. the rete testis divides into 3-4 ductuli efferentes which all drain into the cranial portion of the ductus epididymis. all efferent ducts are most active during the months of december to august. the rete testis is composed of a simple squamous epithelium with bifurcated nuclei and a labyrinthine n ...	2010	21082737
ultrastructural description of spermiogenesis within the mediterranean gecko, hemidactylus turcicus (squamata: gekkonidae).	we studied spermiogenesis in the mediterranean gecko, hemidactylus turcicus, at the electron microscope level and compared to what is known within other lepidosaurs. in h. turcicus germ cells are connected via cytoplasmic bridges where organelle and cytoplasm sharing is observed. the acrosome develops from merging transport vesicles that arise from the golgi and subsequently partition into an acrosomal cap containing an acrosomal cortex, acrosomal medulla, perforatorium, and subacrosomal cone. c ...	2011	21543229
the sexual segment of hemidactylus turcicus and the evolution of sexual segment location in squamata.	the kidneys of the mediterranean gecko, hemidactylus turcicus (gekkonidae), were investigated using light and electron microscopy with the primary focus placed on morphology of the sexual segment of the kidney. the nephrons of male h. turcicus are composed of five distinct regions: 1) a renal corpuscle and glomerulus, 2) a proximal convoluted tubule, 3) an intermediate segment, 4) a distal convoluted tubule, and 5) the sexual segment of the kidney/collecting duct. female h. turcicus is similar b ...	2011	21538471
folklore and traditional ecological knowledge of geckos in southern portugal: implications for conservation and science.	traditional ecological knowledge (tek) and folklore are repositories of large amounts of information about the natural world. ideas, perceptions and empirical data held by human communities regarding local species are important sources which enable new scientific discoveries to be made, as well as offering the potential to solve a number of conservation problems. we documented the gecko-related folklore and tek of the people of southern portugal, with the particular aim of understanding the main ...	2011	21892925
comparison of otoacoustic emissions within gecko subfamilies: morphological implications for auditory function in lizards.	otoacoustic emissions (oaes) are sounds emitted by the ear and provide a non-invasive probe into mechanisms underlying peripheral auditory transduction. this study focuses upon a comparison of emission properties in two phylogenetically similar pairs of gecko: gekko gecko and hemidactylus turcicus and eublepharis macularius and coleonyx variegatus. each pair consists of two closely related species within the same subfamily, with quantitatively known morphological properties at the level of the a ...	2011	21136278
chromosomal evolution in gekkonidae. i. chromosome painting between gekko and hemidactylus species reveals phylogenetic relationships within the group.	geckos are a large group of lizards characterized by a rich variety of species, different modes of sex determination and diverse karyotypes. in spite of many unresolved questions on lizards' phylogeny and taxonomy, the karyotypes of most geckos have been studied by conventional cytogenetic methods only. we used flow-sorted chromosome-specific painting probes of japanese gecko (gekko japonicus), mediterranean house gecko (hemidactylus turcicus) and flat-tailed house gecko (hemidactylus platyurus) ...	2011	21987185
transmission, host specificity, and seasonal occurrence of cyrtosomum penneri (nematoda: atractidae) in lizards from florida.	experimental infections and field-collected lizards were used to investigate issues of transmission, host specificity, and seasonal occurrence in the nematode cyrtosomum penneri (cosmocercoidea: atractidae). anolis sagrei (87 males, 42 females) were captured from the florida southern college campus, polk county, florida, from october 2010 to september 2011, and 8,803 c. penneri were collected from their intestines. during the breeding season all sexually mature (svl ≥ 34 mm) a. sagrei were infec ...	2013	23020090
to move or not to move: cranial joints in european gekkotans and lacertids, an osteological and histological perspective.	lepidosaurs are frequently described as having highly kinetic skulls, and different forms of cranial kinesis have been described as being characteristic of their radiation. the model of amphikinesis proposed by frazzetta, j morphol 1962; 111:287-319, which was long considered a synapomorphy of the large suborder sauria, is now much debated given its uncertain distribution among the various lizard taxa and the lack of data about its morphological correlates. in this article, we analyze the anatom ...	2014	24550139
comparative chromosome painting and nor distribution suggest a complex hybrid origin of triploid lepidodactylus lugubris (gekkonidae).	parthenogenesis, unisexuality and triploidy are interesting but poorly studied phenomena occurring in some reptile species. the mourning gecko (lepidodactylus lugubris) represents a complex of diploid and triploid parthenogenetic mostly all-female populations (males occur quite rarely) widely distributed in coastal areas of the indian and pacific oceans. here, we study karyotypes of a male and two female l. lugubris (llu) triploid individuals (3n = 66) using comparative painting with gekko japon ...	2015	26148117
physiological status drives metabolic rate in mediterranean geckos infected with pentastomes.	negative effects of parasites on their hosts are well documented, but the proximate mechanisms by which parasites reduce their host's fitness are poorly understood. for example, it has been suggested that parasites might be energetically demanding. however, a recent meta-analysis suggests that they have statistically insignificant effects on host resting metabolic rate (rmr). it is possible, though, that energetic costs associated with parasites are only manifested during and/or following period ...	2015	26657838
a new species of isospora schneider, 1881 (apicomplexa: eimeriidae) infecting the intestine of the mediterranean house gecko hemidactylus turcicus linnaeus (reptilia: gekkonidae).	a new species of isospora schneider, 1881 was discovered in the mediterranean house gecko, hemidactylus turcicus (linnaeus) in saudi arabia. both exogenous (sporulated oöcysts) and endogenous developmental stages (meronts, gamonts) were studied and measured. sporulated oöcysts are spheroidal to slightly subspheroidal, 17-22 (18) µm wide, with a smooth, bi-layered oöcyst wall; micropyle, polar granule and oöcyst residuum are all absent. sporocysts are ovoidal, 9-11 × 6-8 (10 × 7) µm, with both st ...	2015	25693463
one subspecies less for the european herpetofauna: the taxonomic and nomenclatural status of hemidactylus turcicus spinalis (reptilia: gekkonidae).		2015	25661624
redescription and new locality record of choleoeimeria turcicus from the gallbladder of hemidactylus turcicus in egypt, with notes on its endogenous development.	upton et al. j protozool 35:24-25, 1988 originally described eimeria turcicus from the gallbladder of the mediterranean gecko, hemidactylus turcicus, in the usa. shortly after establishing the genus choleoeimeria, paperna and landsberg s afr j zool 24:345-355, 1989 transferred e. turcicus to this genus, renaming it as choleoeimeria turcicus. this paper reports the findings of a survey of coccidian parasites of lizards in egypt, during which tetrasporocystic oocysts were reported from the gallbla ...	2016	26857128
helminth parasites of the mediterranean gecko, hemidactylus turcicus (sauria: gekkonidae), from texas, united states with a summary of helminths of this host.	one hundred-thirty six mediterranean geckos, hemidactylus turcicus, were collected between december 1986 and march 2016 in hardin (n = 7), harris (n = 57), and tom green (n = 72) counties, texas, usa., and examined for helminth parasites. fifty-two h. turcicus (38%) were infected with at least one helminth species. found were a trematode, mesocoelium meggitti, three cestodes, mesocestoides sp. (tetrathyridia), oochoristica ameivae and oochoristica scelopori, and four nematodes, cosmocercoides va ...	2016	27447223
a new species of oochoristica (cyclophyllidea: linstowiidae) from non-native mediterranean geckos, hemidactylus turcicus (sauria: gekkonidae), from texas, usa.	a new species of cyclophyllidean tapeworm, oochoristica harschi sp. nov. is described from 2 of 18 (11%) non-native mediterranean geckos (hemidactylus turcicus) collected in june 2016 from tom green county, texas, usa the new species has few characteristics in common with 17 species of oochoristica previously described from nearctic reptiles. of this group, o. harschi is most similar to o. macallisteri bursey and goldberg, 1996 from the side-blotched lizard, uta stansburiana from arizona and cal ...	2017	28426409
intraspecific competition, not predation, drives lizard tail loss on islands.	tail autotomy is mainly considered an antipredator mechanism. theory suggests that predation pressure relaxes on islands, subsequently reducing autotomy rates. intraspecific aggression, which may also cause tail loss, probably intensifies on islands due to the higher abundance. we studied whether tail autotomy is mostly affected by predation pressure or by intraspecific competition. we further studied whether predator abundance or predator richness is more important in this context. to test our ...	2017	27624973
the retina of two nocturnal geckos hemidactylus turcicus and tarentola mauritanica.		2017	13623398
[spectral sensitivity and the threshold of gecko eyes; electroretinographical studies on hemidactylus turcicus & tarentola mauritanica].		2017	13623397
coccidian parasites (apicomplexa: eimeriidae) of arkansas herpetofauna: a summary with two new state records.	coccidian parasites (protista: apicomplexa: eimeriidae) commonly infect reptiles, and to a lesser degree, amphibians. the family eimeriidae includes at least 18 genera and 3 of them, caryospora, eimeria, and isospora have been reported previously from various arkansas herpetofauna. over the past 3 decades, our community collaborative effort has provided a great deal of information on these parasites found in amphibians and reptiles of arkansas. here, we provide a summary of all coccidians report ...	2017	30148286
recognizing the causes of parasite morphological variation to resolve the status of a cryptogenic pentastome.	exotic species can threaten biodiversity by introducing parasites to native hosts. thus, it is critical to identify if the same parasite species infects both native and exotic hosts. however, developmental- or environmental-induced morphological variation may render species identification ambiguous. our study reports a range expansion in the southern united states of the pentastome raillietiella indica from the mediterranean gecko, hemidactylus turcicus, as well as a host expansion into the gree ...	2019	31169454
critical thermal tolerance of invasion: comparative niche breadth of two invasive lizards.	understanding the evolution of thermal tolerance in ectotherms is particularly important given the current period of rapid change in the environment and thermal climate. specifically, introduced species have the potential to evolve different thermal tolerances than native populations due to rapid evolution and novel selection pressures. our study examined critical thermal tolerance in two introduced lizard species, the european wall lizard (podarcis muralis) in ohio and kentucky, and the mediter ...	2019	31789228
acroeimeria lineri (mcallister, upton, freed, 1988) paperna and landsberg, 1989 in mediterranean geckos (hemidactylus turcicus): oocyst morphometrics, endogenous developmental stages, and molecular sequencing support its placement into acroeimeria.	between june 2016 and june 2019, we surveyed 62 mediterranean geckos, hemidactylus turcicus, from abu rawash, giza, egypt, for the presence of endoparasites. in june 2016, we found 3 individuals to be infected with eimeria lineri. we studied the morphology and inner structures of its sporulated oocysts, and the locations of its intestinal endogenous stages. we also extracted genomic dna from these sporulated oocysts and successfully sequenced a 632-bp fragment of the 18s rrna gene. phylogenetic ...	2020	33065739