1,721,075 research outputs found

    On the identity of Chironius flavolineatus (Serpentes: Colubridae)

    No full text
    Hamdan, Breno, Scali, Stefano, Fernandes, Daniel Silva (2014): On the identity of Chironius flavolineatus (Serpentes: Colubridae). Zootaxa 3794 (1): 134-142, DOI: http://dx.doi.org/10.11646/zootaxa.3794.1.

    FIGURE 1 in On the identity of Chironius flavolineatus (Serpentes: Colubridae)

    No full text
    FIGURE 1. (A–B). Label attached to specimen MSNM Re2729.Published as part of Hamdan, Breno, Scali, Stefano & Fernandes, Daniel Silva, 2014, On the identity of Chironius flavolineatus (Serpentes: Colubridae), pp. 134-142 in Zootaxa 3794 (1) on page 137, DOI: 10.11646/zootaxa.3794.1.6, http://zenodo.org/record/491489

    FIGURE 2. Plate 11, edition 31 in On the identity of Chironius flavolineatus (Serpentes: Colubridae)

    No full text
    FIGURE 2. Plate 11, edition 31 of the Iconographie published by Jan & Sordelli (1869). Figure number 3 (circle) represents H. carinatus var. flavolineata. Modified from Jan & Sordelli (1869).Published as part of Hamdan, Breno, Scali, Stefano & Fernandes, Daniel Silva, 2014, On the identity of Chironius flavolineatus (Serpentes: Colubridae), pp. 134-142 in Zootaxa 3794 (1) on page 138, DOI: 10.11646/zootaxa.3794.1.6, http://zenodo.org/record/491489

    Report on a reptile community ecology in a suburban habitat of northern Italy (Reptilia, Sauria, Serpentes).

    No full text
    In 1988 and 1989 we investigated the ecology of a reptile community inhabiting a suburban area altered by human activity. Recent changes in and partial destruction of diversified habitats have been directly involved in the faunistic paucity of all the area, where only three lizard and three snake species have been found, but only four of which are really common. The known thermal preference of every species has been confirmed, and some differences among taxa have been observed in lizard sex-ratio and snake biometry. Available and suitable habitats are discontinuous in the area, which probably explains the different observed distribution of the reptile community

    Colour variation of the Maltese wall lizards (Podarcis filfolensis) at population and individual levels in the Linosa island

    No full text
    The research on animal colouration has always been of great interest for biologists but since the last decades it has grown exponentially thanks to multidisciplinary approaches. Animals have found several ways to deal with the camouflage/communication trade-off in colouration, leading to the evolution of alternative patterns of variation of colourations at different levels including signal partitioning and spatial resolution of colouration. In this paper we analyse the variability of dorsal and ventral colouration in males and females of Maltese wall lizards in three populations on Linosa. We collected high-resolution digital images of dorsal, ventral and throat colouration from 61 lizards (32 males and 29 females). We showed that the colouration differs among sexes and body regions within the same individual. Colourations are also variable among individuals within population, as well as among different populations across the Island. Finally, we detected a lizard's colouration shifts with increasing body size. Those result supports the hypothesis that colouration in this species evolved under the competing pressures of natural and sexual selection to promote signals that are visible to conspecifics while being less perceptible to avian predators
    corecore