Gehyra variegata revision (project)

10.7934/p3186 ◽  
2018 ◽  
Author(s):  
K Kealley ◽  
D Doughty ◽  
P Pepper ◽  
K Keogh ◽  
H Hillyer ◽  
...  
Keyword(s):  
Gehyra Variegata

The Defensive Vocal "Distress" Repertoire of Gekkonid Lizards: Intra- and Inter-Specific Variation

1984 ◽  
Vol 5 (2) ◽  
pp. 109-124 ◽  
Author(s):  
Eliezer Frankenberg ◽  
Yehudah L. Werner
Keyword(s):  
Vocal Response ◽  
Frequency Range ◽  
Acoustic Frequency ◽  
Acoustic Environment ◽  
Specific Variation ◽  
Hearing Range ◽  
Gehyra Variegata

Vocalizations emitted in a uniform distress situation were recorded from adult, similarly sized, gekkonine lizards Bunopus blanfordii, Cyrtodactylus kotschyi orientalis, Gehyra variegata and Stenodactylus s. sthenodactylus. The 269 calls obtained from the 24 individuals used, analysed sonagraphically, segregated into four distinct call types recurring in each species. Ten independently varying factors combine to make this repertoire extremely variable. This variation is independent of the acoustic environment. Because the vocal response to an attacking predator is so unpredictable, and because the acoustic frequency range transcends the hearing range of the geckos themselves, the calls are believed to have a deimatic, anti-predator, function.

The ultrastructure of a haemogregarine parasitic in Gehyra variegata (Duméril & Bibron, 1836)

Parasitology ◽  
1967 ◽  
Vol 57 (2) ◽  
pp. 251-261 ◽  
Author(s):  
W. E. Stehbens ◽  
M. R. L. Johnston
Keyword(s):  
Endoplasmic Reticulum ◽  
Technical Assistance ◽  
Red Cell ◽  
Unit Membrane ◽  
Cell Cytoplasm ◽  
Erythrocytic Stage ◽  
Membranous Structure ◽  
Conventional Unit ◽  
Gehyra Variegata

The ultrastructure of the intra-erythrocytic stage of a haemogregarine in the gecko, Gehyra variegata, has been studied and numerous points of similarity to Plasmodium, Toxoplasma, Sarcocystis, Lankesterella, Eimeria and the M-organism were found. The protozoon was invested by a triple-layered pellicle, and possessed at least two micropyles. A conoid and apical rings were observed at the anterior end. Other cell constituents included nucleus, microtubules, endoplasmic reticulum, mitochondria, toxonemes and a variety of vacuoles. Loosely surrounding the parasite was an unusual convoluted membrane, which in appropriate planes of section, displayed corrugations on both surfaces. It was not clear whether this membranous structure should be regarded as an integral part of the protozoon or as an external coat which could be discarded upon emergence from the host red cell. Within its external sheath, the parasite lay in a periparasitic vacuole which was limited by a conventional unit membrane from the host red cell cytoplasm. The parasite did not exhibit any evidence of pinocytosis or phagocytosis.Our sincere thanks are due to Dr E. H. Mercer, Professor J. D. Smyth and Dr M. J. Mackerras for advice. Miss N. Carroll gave technical assistance.

Persistence of two species of gecko (Oedura reticulata and Gehyra variegata) in remnant habitat

1995 ◽  
Vol 71 (1) ◽  
pp. 25-33 ◽  
Author(s):  
Stephen Sarre ◽  
Graeme T. Smith ◽  
Jacqueline A. Meyers
Keyword(s):  
Remnant Habitat ◽  
Gehyra Variegata

Karyotypic Evolution in Gehyra (Gekkonidae: Reptilia) III.* The Gehyra australis Complex

1983 ◽  
Vol 31 (5) ◽  
pp. 723 ◽  
Author(s):  
M King
Keyword(s):  
Chromosome Morphology ◽  
Chromosome Rearrangements ◽  
Karyotypic Evolution ◽  
Karyotypic Analysis ◽  
Chromosome Races ◽  
The Relationship ◽  
Gehyra Variegata

A karyotypic analysis of the widely distributed Australian gekko Gehyra australis has revealed a complex of chromosome races. Each of these is fixed for a particular karyomorph, and is found over a geographically delimited distribution. The seven chromosome races differ by number, or chromosome morphology, and are defined as: 2n=44,2n=42a, 2n=42b, 2n=42c, 2n=40a, 2n=40b, 2n=38. In addition, a series of animals from these races possess novel chromosome rearrangements. A model for the evolution of this complex of races is proposed, and the relationship ofthese forms to each other and to members of the Gehyra variegata-punctata complex is discussed.

The Status of the Parthenogenetic Gekkonid Lizard Gehyra variegata ogasawarasimae Okada

1982 ◽  
Vol 16 (1) ◽  
pp. 86 ◽  
Author(s):  
Arnold G. Kluge
Keyword(s):  
The Status ◽  
Gehyra Variegata

The Role of Behavior in the Nature Regulation of Numbers in the Gekkonid Lizard Gehyra Variegata

Ecology ◽  
1970 ◽  
Vol 51 (4) ◽  
pp. 723-728 ◽  
Author(s):  
H. Robert Bustard
Keyword(s):  
Gehyra Variegata

Karyotypic Evolution in Gehyra (Gekkonidae: Reptilia) I. The Gehyra Variegata-Punctata Complex.

1979 ◽  
Vol 27 (3) ◽  
pp. 373 ◽  
Author(s):  
M King
Keyword(s):  
Phylogenetic Relationships ◽  
Karyotypic Evolution ◽  
Isolated Populations ◽  
Karyotypic Analysis ◽  
Geographic Barriers ◽  
Chromosome Races ◽  
Chromosome Fusions ◽  
Morphological Differences ◽  
Gehyra Variegata

A karyotypic analysis of populations of the gekkos Gehyra variegata and G. punctata reveals three chromosome races in G. variegata (2n = 44; 2n = 40a; 2n = 40b), and three in G. punctata (2n = 44; 2n = 42; 2n = 38). The chromosome races have differentiated by a series of chromosome fusions. The ordered nature of these changes suggests that the phylogenetic relationships of the races cut across the current taxonomy, and it is argued that there is but one 2n = 44 race, occurring as a number of morphologically distinct populations, two of which were erroneously described as the separate Gehyra species. Isolated populations within a number of the chromosome races show pronounced morphological differences. It is believed that these gekkos are an ancient Australian group which differentiated chromosomally during a number of colonizing radiations. Since then, populations within each race have been isolated by geographic barriers and have speciated allopatrically. This suggests that the chromosome races are at least good species and may be of a higher taxon.

Biology of Oedura reticulata and Gehyra variegata (Gekkonidae) in an Isolated Woodland of Western Australia

1988 ◽  
Vol 22 (4) ◽  
pp. 401 ◽  
Author(s):  
D. J. Kitchener ◽  
R. A. How ◽  
J. Dell
Keyword(s):  
Western Australia ◽  
Gehyra Variegata
Sign in / Sign up

Export Citation Format

Share Document