| 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 |
| applications of ecological niche modeling for species delimitation: a review and empirical evaluation using day geckos (phelsuma) from madagascar. | although the systematic utility of ecological niche modeling is generally well known (e.g., concerning the recognition and discovery of areas of endemism for biogeographic analyses), there has been little discussion of applications concerning species delimitation, and to date, no empirical evaluation has been conducted. however, ecological niche modeling can provide compelling evidence for allopatry between populations, and can also detect divergent ecological niches between candidate species. h ... | 2007 | 18066927 |