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On rare occasions, gargoyle geckos can reproduce asexually via parthenogenesis. In their native habitat of southern New Caledonia, they have been known to sustain themselves from a mixed diet. One study [ 3 ] found that they regularly consume a wide taxonomic and ecological variety of arthropods , lizard prey including geckos and skinks, and ...
Most geckos lay a small clutch of eggs. Some are live-bearing, and a few can reproduce asexually via parthenogenesis. Geckos also have a large diversity of sex-determining mechanisms, including temperature-dependent sex determination and both XX/XY and ZZ/ZW sex chromosomes with multiple transitions among them over evolutionary time. [58]
This reduced need for asexual reproduction increases the fitness of young through hybrid vigour and increased diversity. [31] As well as this, sexually reproducing geckos are reported to be more robust and have higher survival rates than those which reproduce asexually. [12]
Parthenogenesis is a mode of asexual reproduction in which offspring are produced by females without the genetic contribution of a male. Among all the sexual vertebrates, the only examples of true parthenogenesis, in which all-female populations reproduce without the involvement of males, are found in squamate reptiles (snakes and lizards). [1]
They all wanted to find some unfamiliar-looking geckos — and they succeeded. From “slender” to spiky to “fringed,” researchers discovered dozens of new species of gecko in 2023. Take a ...
Obligate parthenogenesis is the process in which organisms exclusively reproduce through asexual means. [39] Many species have transitioned to obligate parthenogenesis over evolutionary time. Well documented transitions to obligate parthenogenesis have been found in numerous metazoan taxa, albeit through highly diverse mechanisms.
Heteronotia binoei, known commonly as Bynoe's gecko, is a species of lizard in the family Gekkonidae, and is endemic to Australia.One of the continent's least-habitat-specific geckos, it occurs naturally across much of the country, and has also established in areas where it does not occur normally, such as urban Perth, Western Australia.
The Komodo dragon, which normally reproduces sexually, has also been found able to reproduce asexually by parthenogenesis. [54] A case has been documented of a Komodo dragon reproducing via sexual reproduction after a known parthenogenetic event, [ 55 ] highlighting that these cases of parthenogenesis are reproductive accidents, rather than ...