Publications
| Title | Abstract | Year(sorted ascending) Filter | PMID Filter |
|---|
| [action of the male hormone (testerone hexahydrobenzoate) on agama agama (sauria, agamidae) females]. | 1963 | 14091885 | |
| [action of temperature on the sex ratio in the agama agama (agamidae, lacertilia) embryo]. | 1966 | 4224426 | |
| [identification of lizard agama agama (l.) skin pigments]. | 1970 | 4985037 | |
| the role of the thyroid in reproduction of the west african lizard, agama agama. | 1970 | 5457014 | |
| cell types in the distal lobe of the pituitary of the west african rainbow lizard, agama agama (l). | 1970 | 4191357 | |
| the role of the pituitary gland in testicular function in the lizard agama agama. | 1971 | 5550932 | |
| [variations of the brachial plexus in two lizards: agama agama linné (agamides) and chalarodon madagascariensis peters (iguanides)]. | 1972 | 4645298 | |
| [the visual learning capacity of laceria viridis and agama agama]. | 1973 | 4782235 | |
| the pharmacology of the alimentary system of the rainbow lizard, agama agama [proceedings]. | 1976 | 1023514 | |
| [microbial invasion of the intestine in colonising agamas (agama agama) from the aspect of hygienic water control in tropical areas of west africa (author's transl)]. | agamae are regularly found in great numbers in the neighbourhood of water supply plants and excrements of these animals can be traced to the plants proper. in order to ascertain the cause of drinking water infections, 37 agamae were cought, immediately killed and the bowel contents examined. it was found that the agamae have no uniform microbial population and that none of the aerobically cultivated bacterial species is present in all animals (tablet 1 indicates the species for each animal). wit ... | 1976 | 788411 |
| ultrastructure of the cornea of the parietal eye of agama agama (l). | 1977 | 305657 | |
| further scanning electron microscope studies of lizard auditory papillae. | the papillae basilares of 12 species of lizards from seven different families were studied by sem. the iguanids, sceloporus magister and s. occidentalis, have typical "iguanid type" papillae with central short-ciliated unidirectional hair cell segments and apical and basal long-ciliated bidirectional hair cell segments. these species of sceloporus are unique among iquanids in that the bidirectional segments consist of but two rows of hair cells. the agamids, agama agama and calotes nigrolabius, ... | 1978 | 671555 |
| a cytochemical study of the blood of the rainbow lizard (agama agama). | smears of peripheral blood from the common rainbow lizard (agama agama) were examined for the distribution and localization of lipid, glycogen, acid phosphatase, alkaline phosphatase and peroxidase, using a variety of staining techniques. while erythrocytes were strongly reactive with the peroxidase test, granulocytes and monocytes were only weakly or moderately active. lipid and glycogen, as well as acid and alkaline phosphatase, were found in granulocytes and monocytes. some lymphocytes showed ... | 1978 | 640954 |
| [investigation on the presence of salmonella in drinking water from water supplies and distribution systems in togo (author's transl)]. | bacteriological drinking water examination of samples from water works and wells as well as from their distribution systems revealed that from 26 samples, where salmonella organisms could be isolated, in 16 cases e. coli- and coliforms could not be found and that in 9 of these cases even the colony count was below 100 colonies per ml at 20 degrees c and 37 degrees c incubation temperature. the common reasons for such contaminations are technical deficiencies, mostly faulty well-heads or broken c ... | 1979 | 384726 |
| pathologic changes in lizards (agama agama) experimentally infected with dermatophilus congolensis. | captive laboratory-held lizards (agama agama) experimentally inoculated with dermatophilus congolensis by subcutaneous, intramuscular and intraperitoneal routes developed pyogranulomatous and necrotic lesions at and around the sites of inoculation. d. congolensis was consistently cultured from the lesions even at 75 days post inoculation. histopathologic examination of selected organs and tissues showed granulomatous caseous abscesses in the dermis, subcutaneous tissue and liver, edema of the de ... | 1980 | 7411747 |
| a corticotectal projection in the lizard agama agama. | following lesions in the dorsal cerebral cortex of the lizard agama agama, terminal degeneration was observed by the fink-heimer technique in the mediodorsal cortex, septal area, nucleus periventricularis and area lateralis of the hypothalamus after 7 days survival time. following longer survival times (up to 28 days) diffuse terminal degeneration was found in layers 7 to 13 laterally and medially in the optic tectum. terminal degeneration of the electron-dense type was found in electron microgr ... | 1980 | 7052496 |
| acetylcholinesterase: regional activity in the central nervous system of the rainbow lizard, agama agama. | 1980 | 6102017 | |
| the structure of the mediodorsal cerebral cortex in the lizard agama agama: a golgi study. | a golgi analysis was made of the cell types present in the mediodorsal cerebral cortex of the lizard agama agama. mediodorsal cortex can be divided into two areas, small-celled mediodorsal cortex (smdc) and large-celled mediodorsal cortex (lmdc). both smdc and lmdc are four-layered cortices: superficial plexiform layer, cellular layer, deep plexiform layer and fiber layer, lmdc partially overlaps dorsal cortex (medial superposition). using characteristics of the dendrites and criteria of locatio ... | 1981 | 7217366 |
| terminal degeneration in the mediodorsal cerebral cortex of the lizard agama agama: light and electron microscopy. | the degeneration of axon terminals in the small-celled part of the mediodorsal cortex (smdc) of the lizard agama agama has been studied after lesions in the dorsal cortex at various survival periods. the fink-heimer stain was used to map and demonstrate terminal degeneration with the light and electron microscope. electron microscopy was used to identify and describe degenerating boutons ultrastructurally. one sham-operated and three unoperated animals served as controls. between 6 and 21 days p ... | 1982 | 30096976 |
| analysis of the responses of rainbow lizard (agama agama linn.). isolated portal vein to electrical stimulation and to drugs. | the responses of the rainbow lizard (agama agama linn.) isolated portal vein to transmural electrical stimulation and to drugs have been examined. the isolated venous muscle preparation strongly contracted in response to exogenously administered adrenaline and noradrenaline (10(-8)-2.5 x 10(-6) m) and also weakly contracted to acetylcholine and 5-hydroxytryptamine (10(-7) - 10(-5) m). the vein relaxed in response to exogenous administrations of isoprenaline (10(-8) - 2.5 x 10(-6) m) and adenosin ... | 1983 | 6142991 |
| non-cholinergic, non-adrenergic responses of the rainbow lizard isolated rectum to transmural electrical stimulation. | the non-cholinergic, non-adrenergic responses of the rainbow lizard (agama agama linn.) isolated rectum to transmural electrical stimulation have been examined in an effort to characterise them. in the presence of atropine (2 microm) and guanethidine (10 microm), tetanic transmural electrical stimulation (at 20 hz) induced, in most of the preparations examined, a rapid initial relaxation (primary relaxation), which changed during the stimulation period into a contraction (primary contraction) fo ... | 1983 | 6668963 |
| comparative effects of some autonomic drugs on lizard (agama agama) and tortoise (kinixys crosa) isolated rectum. | the effects of some cholinomimetic and sympathomimetic drugs have been investigated on the isolated rectal muscles of west african rainbow lizard (agama agama) and land tortoise (kinixys crosa). acetylcholine and its natural or synthetic analogues evoked concentration-related atropine-sensitive contractions of the muscle preparations, whereas all the catecholamines examined relaxed the lizard (and guinea-pig), but not the tortoise, isolated rectum in a dose-dependent fashion. the ganglionic stim ... | 1983 | 6668973 |
| effects of drugs and electrical stimulation on rainbow lizard (agama agama linn.) isolated gastrointestinal tract smooth muscles. | the effects of some autonomic drugs and transmural electrical stimulation have been investigated on different isolated regions (oesophagus, stomach, duodenum, ileum, colon, and rectum) of the rainbow lizard (agama agama linn.) alimentary canal. acetylcholine and its natural or synthetic analogues (5 x 10(-10)-10(-6)m) contracted the rainbow lizard isolated oesophagus, duodenum, ileum, colon, and rectum (but not the stomach) in a concentration-dependent manner. acetylcholine cholinoceptors on the ... | 1983 | 6604856 |
| effects of cholinomimetic drugs on reptilian atrial muscles. | the effects of some cholinomimetic drugs have been examined on isolated atria of rainbow lizards (agama agama linn.) and land tortoises (kinixys spp. linn.). acetylcholine (ach, 10(-8) - 5 x 10(-5) m) caused concentration-dependent, atropine-sensitive, negative chronotropic or inotropic responses in isolated spontaneously-beating right or electrically-driven left atria of rainbow lizards and land tortoises. this prototype cholinergic drug (ach, 10(-8) 5 x 10(-5) m) also induced atropine-sensitiv ... | 1984 | 6503473 |
| effects of sympathomimetic drugs on reptilian atrial muscles. | the effects of some sympathomimetic drugs on isolated atria of rainbow lizards (agama agama linn.) and land tortoises (kinixys spp. linn.) have been examined. noradrenaline, adrenaline, isoprenaline, phenylephrine or dopamine (10(-9)-10(-5) m) induced concentration-dependent positive chronotropic and inotropic responses in spontaneously-beating right- and electrically-driven left atria of rainbow lizards or tortoises. these catecholamines produced similar responses in guinea-pig isolated atria. ... | 1984 | 6471969 |
| effect of adenosine 5'triphosphate (atp) on the isolated rectum of the rainbow lizard agama agama. | atp but not adenosine contracts lizard isolated rectal muscles. theophylline, quinidine, nifedipine and lack of ca2+ inhibited atp contractions, but dipyridamole, indomethacin, atropine, d-tubocurarine, phentolamine, l-propranolol, cimetidine, mepyramine and methysergide did not significantly modify the contractions. atp inhibited ca2+-induced contractions in na+-free, high k+ media. in normal ringer, it relaxed carbachol-contracted muscles and inhibited kcl contractions. the results suggest tha ... | 1985 | 4018537 |
| hepatic tyrosine aminotransferase from the rainbow lizard agama agama: purification and some properties. | tyrosine aminotransferase, induced by dexamethasone in the liver of the rainbow lizard, agama agama, was extracted under optimal conditions which yield the native undegraded enzyme; purified by heat treatment at 65 degrees c, ammonium sulfate precipitation, chromatography on deae-sephacel and sephadex g-150-120 and then characterized. the enzyme was purified over 2000-fold to a specific activity of 2653 units/mg of protein. it had an optimum ph of 7.6 in potassium phosphate buffer, kmtyr: 1.0 mm ... | 1987 | 2886155 |
| some physiological observations on ketamine hydrochloride anaesthesia in the agamid lizard. | some physiological parameters of the agamid lizard (agama agama agama) were studied after intramuscular injection of diazepam. heart rates and electrocardiograms were recorded. respiratory rates were also monitored before and during anaesthesia. the study showed that ketamine given at a dose of 20-30 mg/kg body weight intramuscularly provides optimal anaesthesia for surgical procedures on the agamid lizard. | 1987 | 3626463 |
| eimeria sinaitae n. sp. (apicomplexa: eimeriidae) from the rock agama (agama sinaita) in saudi arabia. | eimeria sinaitae n. sp. is described from the gall bladder of agama sinaita from wasie, saudi arabia. sporulated oocysts are elongate-ellipsoid 34.4 x 22.0 (29.0-40.0 x 17.4-24.5) micron. oocyst wall is smooth, greenish yellow, 1.2 (1.0-1.4) micron thick, and two-layered. micropyle, polar granule, and oocyst residuum are absent. sporocysts are ellipsoid 11.4 x 7.6 (9.8-15.0 x 6.7-9.0) micron. sporocyst residuum is present. the sporocysts lack a stieda body. sporozoites are crescent-shaped, blunt ... | 1988 | 3183998 |
| the physiological basis of slow locomotion in chamaeleons. | the african chamaeleon, chamaeleo senegalensis, will not move faster than approximately 0.1 m/second at 23 degrees c, whereas the lizard agama agama, like most lizards its size, runs at speeds more than 10x as fast. to account for this difference, we measured various physiological parameters of the iliofibularis muscle of both lizards. the maximum speed of tetanic contraction of unloaded chamaeleo muscle was half as fast as that of agama muscle (2.5 vs. 5.8 resting lengths per second). heavily l ... | 1988 | 2968437 |
| responses of the isolated rectum of the rainbow lizard (agama agama) to sympathomimetics. | the relaxant effects of isoprenaline, noradrenaline, and adrenaline on the isolated rectum of the rainbow lizard (agama agama) were studied. responses were measured as a reduction of carbachol-induced contractions for each sympathomimetic agent. isoprenaline, adrenaline, noradrenaline produced a dose-dependent relaxation of this preparation and the order of potency was as given. the pd2 value of 8.15 +/- 1.88 obtained for isoprenaline was significantly different (p less than 0.05) from those for ... | 1989 | 2565754 |
| saurian malaria in kenya: epidemiological features of malarial infections in lizard populations of the west pokot district. | during investigations into the prevalence of malarial parasites among lizards in the west pokot district in kenya, 179 lizards comprising eight species were caught. examination of the giemsa-stained smears made from their blood showed that 34 lizards were infected with plasmodium species. fifteen lizards were infected with a single species of plasmodium and 19 carried multiple infections, the maximum, in four lizards, was four species. there were 19 combinations of parasite infections. seventeen ... | 1990 | 2332274 |
| virulence of lizard malaria: the evolutionary ecology of an ancient parasite-host association. | the negative consequences of parasitic infection (virulence) were examined for two lizard malaria parasite-host associations: plasmodium agamae and p. giganteum, parasites of the rainbow lizard, agama agama, in sierra leone, west africa; and p. mexicanum in the western fence lizard, sceloporus occidentalis, in northern california. these malaria species vary greatly in their reproductive characteristics: p. agamae produces only 8 merozoites per schizont, p. giganteum yields over 100, and p. mexic ... | 1990 | 2235062 |
| demonstration of prostaglandin activity in lungs of the rainbow lizard (agama agama) by bioassay. | extracts and perfusate effluents of lungs of the rainbow lizard (agama agama) were assayed for prostaglandin-like activity. results of differential bioassay and thin-layer chromatography suggested that the prostanoid was predominantly pge2-like. the mean pge2-like content of 10 lizard lung extracts was 2.9 micrograms g-1 wet weight compared with 146 ng g-1 in rat lungs. mechanical pressure applied to the lung during perfusion through the pulmonary vasculature provoked the release of large quanti ... | 1990 | 2115395 |
| further serial transmission electron microscopy studies of auditory hair cell innervation in lizards and in a snake. | auditory hair cells of three lizard and one snake species were studied by serial transmission electron microscopy (tem) sections of two unidirectional hair cells (uhc) and two bidirectional hair cells (bhc) and by nonserial section montages of each entire papilla cut at 2-microns intervals across the papillar width. the unidirectional hair cell region of the agamid lizard, acanthosaura crucigera, lacked efferent innervation. another agamid lizard, agama agama, studied by nonserial section only, ... | 1990 | 2375282 |
| kinematics of prey capture and chewing in the lizard agama agama (squamata: agamidae). | high speed video recordings (200 fields per second) of prey capture and food processing in agama agama permit the identification of strikes, chews and transport movements. ten variables from strike movements and seven variables from chewing sequences are digitized; transport movements are inspected only. univariate and multivariate statistical analyses disclose significant interindividual differences for three variables (maximum gape distance, maximum head angle, and maximum throat distance); bu ... | 1991 | 29865587 |
| a positive fever response in agama agama and sceloporus orcutti (reptilia: agamidae and iguanidae). | three species of lizards (agama agama, mabuya perrotetii, and sceloporus orcutti) were tested for a possible increase in mean selected body temperature (msbt) in response to intraperitoneal injection of alcohol-killed aeromonas sobria, a gram-negative bacterium known to be pathogenic to reptiles. a paired experimental design was utilized in which each animal was given an injection of sterile saline and 1.10(10) a. sobria. body temperatures were monitored via indwelling cloacal thermocouples at 4 ... | 1991 | 1939744 |
| characteristic features of the sonicated dna of agama agama agama l. (reptilia, agamidae) on hydroxyapatite columns, using mouse dna as a reference. | hydroxyapatite column chromatography has been used to study some properties of the extensively sheared dna of the rainbow lizard, agama agama agama. reassociation studies show that the genome has a cot1/2 of 370. approximately 15% of the genome is highly repetitive in nature. this repetitive fraction is resolved into thermally stable and less stable fractions. the stable fraction has a base composition of 47% gc, higher than the 40.2% gc for the native dna. this stable fraction is believed to be ... | 1991 | 1879687 |
| herpesvirus in red-headed (common) agamas (agama agama). | 1993 | 8396987 | |
| the effect of bacteria infection on mean selected body temperature in the common agama, agama agama: a dose-response study. | 1. the fever response was studied in 43 common agamas using a self-pairing experiment in which animals received an intraperitoneal injection of sterile saline and an injection of one of six dosages of dead aeromonas sobria (1 x 10(6), 1 x 10(7), 1 x 10(8), 1 x 10(9), 1 x 10(10), and 1 x 10(11) total organisms). 2. the results demonstrated a significant increase in tb (1.6-3.1 degrees c) above the mean selected body temperature (msbt) of the saline injection animals over a bacteria infection rang ... | 1993 | 8101779 |
| interspecific interactions tested: two species of malarial parasite in a west african lizard. | plasmodium giganteum and p. agamae, parasites of the rainbow lizard, agama agama, in west africa were studied to determine the nature of any interspecific interactions between the two malaria species. the plasmodia are distributed in a. agama throughout the mesic zone of africa; p. agamae is sometimes found as a solitary malaria species in populations of the lizard, but p. gigateum has not been found alone. in 3170 lizards from sierra leone the prevalence of lizard malaria at 22 sites varied con ... | 1994 | 28313627 |
| morphology and cytology study of foleyella agamae complex (nematoda: filarinae) infecting the agamid lizard agama agama in nigeria. | three cytotypes of foleyella agamae were isolated from naturally infected wild-caught agama agama in nigeria. cytotype a (2n = 8) has a body length/oesophageal length ratio (l/o) of 87.6 +/- 14.2 in female worms and a large somatic size (length, 63.8 +/- 12.7 mm in female worms and 25.5 +/- 3.4 mm in males). cytotype b (2n = 6) has an l/o of 43.4 +/- 6.6 in females and a small to average somatic size (length, 36.7 +/- 11.9 mm in females and 19.5 +/- 2.3 mm in males). cytotype c (2n = 4) has an l ... | 1995 | 7567913 |
| fungal carriage in lizards. | the occurrence of fungi was investigated in the gut of 200 common garden lizards (agama agama). the most important pathogenic fungus isolated was basidiobolus haptosporus, an aetiological agent of subcutaneous zygomycosis. it was recovered from the intestinal contents of 112 (56%) lizards. other important fungi isolated included aspergillus spp. in 24 (12%) lizards, candida spp. in 12 (6%), penicillium spp. in 12 (6%) and fusarium spp. in 12 (6%). mucor spp. were isolated from eight (4%) male li ... | 1997 | 9375499 |
| helminth parasites of the african lizard agama agama (squamata: agamidae), in lagos, nigeria. | agama agama, the agamid rainbow lizard, has been reported to serve as transport and reservoir host to several protozoan and helminth parasites. we randomly sampled 310 specimens between may and july, 2005, at oyingbo, lagos, nigeria (6 degrees 34'60" n-3 degrees 19'59" e and 6 degrees 34'60" n-3 degrees 19'59" e).they harboured four species of nematodes: strongyluris brevicaudata, parapharyngodon awokoyai, capillaria sp. and oxyuris sp.; one of cestoda, oochoristica agamae; one of trematoda, mes ... | 2007 | 19069756 |
| a new species of isospora schneider, 1881 (apicomplexa: eimeriidae) in ruppell's agama agama rueppelli (vaillant) (sauria: agamidae) from east africa, with a review of this genus in agamid lizards. | coprological examinations of eight ruppell's agamas agama rueppelli (vaillant) revealed the presence of a coccidium of the genus isospora schneider, 1881 that represents a previously undescribed species. oöcysts of isospora farahi n. sp. are spherical or subspherical, 29.1 (26-31) x 28.8 (26-31) microm, with a shape-index of 1.01 (1-1.07). an oöcyst residuum, polar granules and micropyle are absent. the oöcyst wall is bilayered, brownish and smooth, c. 1.5-2 microm thick. the sporocysts are oval ... | 2009 | 19790001 |
| tail-assisted pitch control in lizards, robots and dinosaurs. | in 1969, a palaeontologist proposed that theropod dinosaurs used their tails as dynamic stabilizers during rapid or irregular movements, contributing to their depiction as active and agile predators. since then the inertia of swinging appendages has been implicated in stabilizing human walking, aiding acrobatic manoeuvres by primates and rodents, and enabling cats to balance on branches. recent studies on geckos suggest that active tail stabilization occurs during climbing, righting and gliding. ... | 2012 | 22217942 |
| two new species of scale mites (acari: pterygosomatidae) parasitizing agama agama (sauria: agamidae) from kenya. | two new species of pterygosomatid mites pterygosoma garissi sp. nov. and p. fragilis sp. nov. (acari: pterygosomatidae) are described from the agamid lizard agama agama (sauria: agamidae) from kenya. p. garissi sp. nov. is similar to p. annectans jack, 1962 but in the new species the peripheral setae are slightly expanded apically, 3 pairs of setae are situated on the coxal fields i and and 2 pairs on ii coxal fields, all pseudoanal setae are paddle-shaped with minute spicules on the apical part ... | 2013 | 25113347 |
| blood parasites in reptiles imported to germany. | though international trade is increasing, the significance of imported reptiles as carriers of pathogens with relevance to animal and human health is largely unknown. reptiles imported to germany were therefore investigated for blood parasites using light microscopy, and the detected parasites were morphologically characterized. four hundred ten reptiles belonging to 17 species originating from 11 asian, south american and african countries were included. parasites were detected in 117 (29%) of ... | 2014 | 25324132 |
| [a boundary between palearctic and afrotropical faunistic kingdoms (based on the lizard distribution (reptilia, sauria))]. | in order to define the limit between palearctic and afrotropical kingdoms, we studied the apparent transition zone between them which we limited by the north range boundary of agama agama--the northernmost representative of a typical afrotropical genus--and by the south range boundary of the southernmost representatives of palearctic genera acanthodactylus, chalcides, stenodactylus, and tarentola. we also considered fauna of southwest arabian lizards including a representative of afrotropical ge ... | 2016 | 10780112 |
| the bogert effect and environmental heterogeneity. | a classic question in evolutionary biology is whether behavioral flexibility hastens or hinders evolutionary change. the latter idea, that behavior reduces the number of environmental states experienced by an organism and buffers that organism against selection, has been dubbed the "bogert effect" after charles bogert, the biologist who first popularized the phenomenon using data from lizards. the bogert effect is pervasive when traits like body temperature, which tend to be invariant across spa ... | 2019 | 31679039 |
| genetic variation and cryptic lineage diversity of the nigerian red-headed rock agama agama agama associate with eco-geographic zones. | nigeria is an afrotropical region with considerable ecological heterogeneity and levels of biotic endemism. among its vertebrate fauna, reptiles have broad distributions, thus, they constitute a compelling system for assessing the impact of ecological variation and geographic isolation on species diversification. the red-headed rock agama, agama agama, lives in a wide range of habitats and, thus, it may show genetic structuring and diversification. herein, we tested the hypothesis that ecology a ... | 2019 | 31857818 |