| two new species of coccidia (apicomplexa: eimeriidae) from madagascar gekkonids. | two new species of coccidia (apicomplexa: eimeriidae) are described from the madagascar giant day gecko, phelsuma madagascariensis grandis, and the golddust day gecko, p. laticauda. both species of coccidia were found to infect the anterior one-half of the small intestine. oocysts of eimeria brygooi n. sp. are spherical or subspherical, 23.0 x 21.3 (18.8-25.2 x 16.4-23.2)micron; shape index (l/w) 1.1 (1.0-1.2). a micropyle, oocyst residuum, and polar granule are absent. sporocysts are ovoid, 9.2 ... | 1987 | 3430410 |
| glyceraldehyde 3-phosphate dehydrogenase is an enzyme-crystallin in diurnal geckos of the genus phelsuma. | lenses from diurnal geckos, phelsuma barbouri, phelsuma madagascariensis grandis and phelsuma serraticauda contain a prominent 37 kda polypeptide (pi-crystallin) that is not present in lenses from the nocturnal geckos, gekko gekko, hemidactylus garnoti, tarentola annularis, and uroplatus henkeli. this protein was partially purified from p. serraticauda and was identified as glyceraldehyde 3-phosphate dehydrogenase (gapd). the gapds, which constitute 14-24% of the lens soluble protein in the diur ... | 1995 | 7733971 |
| the pupils and optical systems of gecko eyes. | the nocturnal helmet gecko, tarentola chazaliae, discriminates colors in dim moonlight when humans are color blind. the sensitivity of the helmet gecko eye has been calculated to be 350 times higher than human cone vision at the color vision threshold. the optics and the large cones of the gecko are important reasons why they can use color vision at low light intensities. using photorefractometry and an adapted laboratory hartmann-shack wavefront sensor of high resolution, we also show that the ... | 2009 | 19757966 |
| two new species of coccidia (apicomplexa: eimeriidae) from leaf-tailed geckos, uroplatus spp. (sauria: gekkonidae) from madagascar, including a new host of eimeria brygooi upton & barnard, 1987. | during may and june 2015, four common leaf-tailed geckos, uroplatus fimbriatus (schneider), five satanic leaf-tailed geckos, uroplatus phantasticus (boulenger), and four mossy leaf-tailed geckos, uroplatus sikorae boettger originally collected from madagascar and housed at the dallas zoo, usa, had their faeces examined for coccidian parasites. eight (62%) geckos were found to be passing oöcysts, including a new eimerian, a new isosporan and a previously described eimerian. three of four (75%) u. ... | 2016 | 27638735 |
| geckos as springs: mechanics explain across-species scaling of adhesion. | one of the central controversies regarding the evolution of adhesion concerns how adhesive force scales as animals change in size, either among or within species. a widely held view is that as animals become larger, the primary mechanism that enables them to climb is increasing pad area. however, prior studies show that much of the variation in maximum adhesive force remains unexplained, even when area is accounted for. we tested the hypothesis that maximum adhesive force among pad-bearing gecko ... | 2015 | 26331621 |
| ecological effects of the invasive giant madagascar day gecko on endemic mauritian geckos: applications of binomial-mixture and species distribution models. | the invasion of the giant madagascar day gecko phelsuma grandis has increased the threats to the four endemic mauritian day geckos (phelsuma spp.) that have survived on mainland mauritius. we had two main aims: (i) to predict the spatial distribution and overlap of p. grandis and the endemic geckos at a landscape level; and (ii) to investigate the effects of p. grandis on the abundance and risks of extinction of the endemic geckos at a local scale. an ensemble forecasting approach was used to pr ... | 2014 | 24785293 |