Paroedura manongavato, a newly described gecko species native to Madagascar, is distinguished by its rock-climbing abilities and critical endangerment due to habitat confinement. Its identification enhances understanding of the P. bastardi group’s taxonomy and emphasizes the necessity of biodiversity preservation. Credit: Javier Lobón-Rovira
Named after its habitat preference, Paroedura manongavato, from the Malagasy words “manonga” (to climb) and “vato” (rock), is a bouldering expert.
Part of its “home range” is also very well-known to rock climbers for its massive granitic domes.
“Its description represents another step into the crux (in climbing jargon, the most difficult section of a bouldering problem) of resolving the taxonomy of the recently revised P. bastardi group, where the new speciesA species is a group of living organisms that share a set of common characteristics and are able to breed and produce fertile offspring. The concept of a species is important in biology as it is used to classify and organize the diversity of life. There are different ways to define a species, but the most widely accepted one is the biological species concept, which defines a species as a group of organisms that can interbreed and produce viable offspring in nature. This definition is widely used in evolutionary biology and ecology to identify and classify living organisms.” data-gt-translate-attributes=”[{“attribute”:”data-cmtooltip”, “format”:”html”}]”>species belongs, and reaching a total of 25 described species in this genus, all exclusively living in Madagascar and Comoros,” says C. Piccoli from CIBIO – Research Center in Biodiversity and Genetic Resources, Portugal.
She and her team just published a paper describing the new gecko.
Gecko’s Habitat and Conservation Status
Thus far, this species has only been found in Anja Reserve and Tsaranoro, both of which are isolated forest patches in the arid south-central plateau of Madagascar.
These sites, at a distance of ca. 25 km, have a peculiar conformation, with huge granitic boulders close to rocky cliffs and surrounded by vegetation. The survival of P. manongavato, defined as microendemic for being restricted to a very narrow distributional range, thus depends on the preservation of these small forest patches.
Habitat of Paroedura manongavato at Anja Reserve. Credit: Javier Lobón-Rovira
Subsequently, the authors proposed an evaluation of its conservation status as Critically Endangered, a category designated for species threatened with extinction by the International Union for Conservation of Nature.
Discovery Journey
Its discovery history is long, starting during the Malagasy summer of 2010, when the first evidence of another Paroedura species was found in Anja, together with the recently described P. rennerae in 2021. Distinguishing these two species on the field is a difficult task.
Both species have prominent dorsal-enlarged keeled scales and a similar dorsal pattern, although adults of P. manongavato have an overall less spiky appearance, less contrasted dorsal markings, and a smaller body size compared to P. rennerae.
The newly described Paroedura manongavato. Credit: Javier Lobón-Rovira
The need to collect more samples brought researchers A. Crottini, F. Andreone, and G. M. Rosa to return to Anja in 2014, and collect the future holotype (i.e. the name-bearing and description reference individual) of this new species.
Later in 2018, F. Belluardo, J. Lobón-Rovira, and M. Rasoazanany, visited Anja and Tsaranoro again and were able to collect several tissue samples and high-resolution photos of the reptiles living in the area, including the new gecko species. This cumulative data collection was fundamental to advancing its description.
Study Publication and Importance
Published in the open-access journal ZooKeys, this study highlights the importance of conducting herpetological inventories in Madagascar to improve our understanding of species diversity and progress with species conservation assessments.
“The description of this species shows the importance of collaborative efforts when documenting biodiversity, especially for those range-restricted and isolated species at greatest risk of disappearing,” points out the leading author of this study C. Piccoli.
Reference: “Another step through the crux: a new microendemic rock-dwelling Paroedura (Squamata, Gekkonidae) from south-central Madagascar” by Costanza Piccoli, Francesco Belluardo, Javier Lobón-Rovira, Ivo Oliveira Alves, Malalatiana Rasoazanany, Franco Andreone, Gonçalo M. Rosa and Angelica Crottini, 4 October 2023, ZooKeys.
DOI: 10.3897/zookeys.1181.108134
Source: SciTechDaily
