scholarly journals In “defense” of Podarcis latastei, an Italian insular endemic species (Squamata: Lacertidae)

2021 ◽  
pp. 1-5
Author(s):  
Riccardo Castiglia ◽  
Gabriele Senczuk ◽  
Wolfgang Böhme ◽  
Claudia Corti
Keyword(s):  
Endemic Species ◽  
Morphological Evidence ◽  
Taxonomic Change ◽  
Pontine Islands ◽  
Insular Endemic ◽  
Insular Endemic Species

Abstract Based on genetic and morphological evidence, Senczuk et al. (2019) formally raised the Podarcis populations from the Western Pontine Islands, previously classified as several subspecies of P. siculus, to species rank, i.e. Podarcis latastei (Bedriaga, 1879). This taxonomic change was not accepted in the checklist of the European herpetofauna by Speybroeck et al. (2020), recently published on Amphibia-Reptilia. In this note we respond to the reasons given by Speybroeck and colleagues and support the validity of Podarcis latastei as an endemic Italian species.

A new insular, endemic frog of the genus Kalophrynus Tschudi, 1838 (Anura: Microhylidae) from Tioman Island, Pahang, Peninsular MalaysiaDepartment of Biology, La Sierra University, 4500 Riverwalk Parkway, Riverside, California, 92515-8247 USA.

Zootaxa ◽  
2011 ◽  
Vol 3123 (1) ◽  
pp. 60
Author(s):  
CHAN KIN ONN ◽  
L. LEE GRISMER ◽  
JESSE GRISMER
Keyword(s):  
Endemic Species ◽  
Peninsular Malaysia ◽  
Southeastern Coast ◽  
Insular Endemic ◽  
Insular Endemic Species

A new insular, endemic species of microhylid frog of the genus Kalophrynus is described from Tioman Island, off the southeastern coast of Pahang, Peninsular Malaysia. Kalophrynus tiomanensis sp nov. can be differentiated from its congeners by the following combination of characters: SVL 21.4–26.3 mm; reduced webbing on toes; outer metatarsal tubercle absent; large, black inguinal spot and unique markings on dorsum. This discovery increases the number of endemic species of amphibians on Tioman Island to at least three.

scholarly journals A new species of leaf-toed gecko (Phyllodactylidae, Phyllodactylus) from María Cleofas Island, Nayarit, Mexico

ZooKeys ◽  
2021 ◽  
Vol 1024 ◽  
pp. 117-136 ◽  
Author(s):  
Tonatiuh Ramírez-Reyes ◽  
Ilse K. Barraza-Soltero ◽  
Jose Rafael Nolasco-Luna ◽  
Oscar Flores-Villela ◽  
Armando H. Escobedo-Galván
Keyword(s):  
New Species ◽  
Biological Diversity ◽  
Morphological Evidence ◽  
Genetic Isolation ◽  
Unique Combination ◽  
Taxonomic Changes ◽  
Insular Endemic ◽  
Insular Endemic Species ◽  
A New Species ◽  
Insular Populations

We describe a new species of leaf-toed gecko of the genus Phyllodactylus from María Cleofas Island, the smallest island of Tres Marías Archipelago, Nayarit, México. Genomic, phylogenomic, and morphological evidence support that the new species presents a unique combination of diagnostic characters. Morphologically, the new species has a high number of tubercles, head to tail (mean 47), longitudinal ventral scales (mean 61), and third labial–snout scales (mean 26). Gene flow tests revealed the genetic isolation of insular populations from mainland counterparts. In addition, we confirmed the non-monophyly of P. homolepidurus and P. nolascoensis, and we show that the taxon P. t. saxatilis is a complex; therefore, we propose taxonomic changes within the saxatilis clade. The discovery of this new insular endemic species highlights the urgency of continued exploration of the biological diversity of island faunas of Mexico.

A colorful new species of insular rock gecko (Cnemaspis Strauch 1887) from southern Vietnam

Zootaxa ◽  
2010 ◽  
Vol 2352 (1) ◽  
pp. 46 ◽  
Author(s):  
L. LEE GRISMER ◽  
NGO VAN TRI ◽  
JESSE L. GRISMER
Keyword(s):  
New Species ◽  
Endemic Species ◽  
Age Classes ◽  
Southern Vietnam ◽  
The Third ◽  
Bright Orange ◽  
Hands And Feet ◽  
Insular Endemic ◽  
Insular Endemic Species ◽  
A New Species

A new species of endemic, insular Cnemaspis is described from Hon Khoai Island, Ca Mau Province, Ngoc Hien District, 18 km off the southern tip of the Ca Mu Peninsula in southern Vietnam. Cnemaspis psychedelica sp. nov. is the most uniquely colored of all southeast Asian Cnemaspis in that both sexes and all age classes have bright orange forelimbs, forelegs, hands and feet; a bright orange tail; a dense, yellow reticulum on the neck overlying thick, black, longitudinal lines; and a blue-gray to light purple trunk bearing yellow transverse bars on bright-orange flanks. It also differs from all other species of Cnemaspis in aspects of size and squamation. Cnemaspis psychedelica is the third insular endemic species of Cnemaspis from Vietnam and brings the total number of species in Vietnam to six. Its occurrence on one of the 92 islands in Rach Gia Bay underscores the necessity for continued surveys of these poorly known islands that are beginning to show a surprising degree of endemism and diversity.

scholarly journals Large-scale phylogenomics reveals ancient introgression in Asian Hepatica and new insights into the origin of the insular endemic Hepatica maxima

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Seongjun Park ◽  
SeonJoo Park
Keyword(s):  
Endemic Species ◽  
Evolutionary History ◽  
Large Scale ◽  
Oceanic Islands ◽  
Network Analyses ◽  
Organellar Genomes ◽  
History Of ◽  
Insular Endemic ◽  
Insular Endemic Species ◽  
Hybridization And Introgression

Abstract Hepatica maxima is native to Ulleungdo, which is one of the oceanic islands in Korea, and it likely originated via anagenetic speciation from the Korean mainland species H. asiatica. However, the relationships among the Asian lineages remain unresolved. Phylogenomics based on plant genomes can provide new insights into the evolutionary history of plants. We first generated plastid, mitochondrial and transcriptome sequences of the insular endemic species H. maxima. Using the genomic data for H. maxima, we obtained a phylogenomic dataset consisting of 76 plastid, 37 mitochondrial and 413 nuclear genes from Asian Hepatica and two outgroups. Coalescent- and concatenation-based methods revealed cytonuclear and organellar discordance in the lineage. The presence of gynodioecy with cytoplasmic male sterility in Asian Hepatica suggests that the discordance is correlated with potential disruption of linkage disequilibrium between the organellar genomes. Species network analyses revealed a deep history of hybridization and introgression in Asian Hepatica. We discovered that ancient and recent introgression events occurred throughout the evolutionary history of the insular endemic species H. maxima. The introgression may serve as an important source of genetic variation to facilitate adaptation to the Ulleungdo environment.

scholarly journals A revision of Ziziphus (Rhamnaceae) in Borneo

Kew Bulletin ◽  
2021 ◽  
Author(s):  
Daniel Cahen ◽  
Jessica Rickenback ◽  
Timothy M. A. Utteridge
Keyword(s):  
Endemic Species ◽  
Conservation Status ◽  
Morphological Evidence ◽  
Taxonomic Treatment ◽  
New Synonyms ◽  
Mount Kinabalu ◽  
Status Assessment ◽  
New Varieties

SummaryThe genus Ziziphus (Rhamnaceae) is revised for Borneo. 13 species are recognised using morphological evidence, including three new endemic species: Ziziphus cuspidata, Z. domatiata and Z. puberula. Borneo is therefore the island with the greatest known diversity of Ziziphus species. The area surrounding Mount Kinabalu is particularly diverse, with nine species occurring in Ranau. Two new varieties of Z. borneensis are also described here, Z. borneensis var. ranggam and Z. borneensis var. velutina, five new synonyms are established, including the placement of Z. elmeri as a synonym of Colubrina beccariana. A taxonomic treatment, including a preliminary IUCN conservation status assessment, is presented for each species and variety.

scholarly journals Rediscovery of a halophytic endemic and rare species of Portulaca (Portulacaceae) from central Argentina: morphology and its phylogenetic position

Phytotaxa ◽  
2017 ◽  
Vol 332 (1) ◽  
pp. 41
Author(s):  
JUAN JOSE CANTERO ◽  
GLORIA E. BARBOZA ◽  
GILBERTO OCAMPO
Keyword(s):  
Endangered Species ◽  
Endemic Species ◽  
Rare Species ◽  
Molecular Data ◽  
Critically Endangered ◽  
Phylogenetic Position ◽  
Morphological Evidence ◽  
Critically Endangered Species ◽  
Central Argentina

Portulaca ragonesei (Portulacaceae), an extreme holophyte species from Salina de Ambargasta, central Argentina, is here illustrated and re-described based on morphological evidence. In addition, molecular data shows that this endemic species is one of the earliest-divergent lineages of the Oleracea clade. This is a critically endangered species that can be morphologically distinguished by its sprouting geophytes habit, the linear leaves, and the presence of constriction at the apex of the pixidium where only one seed is found.

scholarly journals Confirmation of Leptobrachella ventripunctata (Fei, Ye, and Li, 1990), based on molecular and morphological evidence in Thailand

2021 ◽  
Vol 9 ◽  
Author(s):  
Yun-He Wu ◽  
Parinya Pawangkhanant ◽  
Jin-Min Chen ◽  
Wei Gao ◽  
Chatmongkon Suwannapoom ◽  
...  
Keyword(s):  
Southeast Asia ◽  
Endemic Species ◽  
Southern China ◽  
Biodiversity Hotspot ◽  
Integrative Approach ◽  
Morphological Evidence ◽  
National Border ◽  
Border Areas ◽  
Global Biodiversity ◽  
Research Studies

Thailand is considered a global biodiversity hotspot that is known to harbour a striking diversity of endemic species. However, several research studies have determined that the level of amphibian diversity in the country has been significantly underestimated. The megophryid genus Leptobrachella Smith, 1925 is currently known to include 89 species that are primarily distributed throughout southern China and Southeast Asia; however, only seven species have been found in Thailand. Based on an integrative approach encompassing genetic and morphological analyses, we have concluded that the population identified from Chiang Rai Province of Thailand is conspecific with Leptobrachella ventripunctata (Fei, Ye, and Li, 1990). Importantly, this is the first confirmation record of this species, based on molecular and morphological evidence in Thailand. The discovery of this species reaffirms that the diversity within the genus has been underestimated with many species yet to be discovered. In addition, the findings of our study further highlight the lack of existing knowledge on amphibian taxonomy and an underestimation of the biodiversity that exists along these national border areas.

Gone with the wind: westward dispersal across the Indian Ocean and island speciation in Hemicordulia dragonflies (Odonata: Corduliidae)

Zootaxa ◽  
2007 ◽  
Vol 1438 (1) ◽  
pp. 27 ◽  
Author(s):  
KLAAS-DOUWE B. DIJKSTRA
Keyword(s):  
Indian Ocean ◽  
Gone With The Wind ◽  
Dispersal Capacity ◽  
African Lakes ◽  
Oceanic Species ◽  
The Indian Ocean ◽  
Large Water ◽  
Insular Endemic ◽  
Insular Endemic Species ◽  
Cool Conditions

The taxonomy and biogeography of the western representatives of the largely Papuan-Australian genus Hemicordulia are discussed and compared with other alate fauna including butterflies, birds, bats and other dragonflies. Specimens from Malawi, Mozambique, Réunion, South Africa, Tanzania and Uganda were compared with Indian specimens of H. asiatica, with which they were previously regarded conspecific. They are found to be distinct and are described as the continental H. africana n. sp. and those from Réunion as H. atrovirens n. sp. The three species were compared with H. similis of Madagascar and H. virens of Mauritius. Insufficient material of the Seychelles taxon H. similis delicata was available; it may represent another insular endemic species. The distribution of Hemicordulia is discussed in the light of the dispersal capacity of Odonata and the biogeography of taxa with similar distributions in the region, with an emphasis on the survival of ‘oceanic’ species on the continent. Recent (i.e. in the last few million years) trans-oceanic airborne dispersal aided by westward storms, is the most likely explanation for the distribution of the genus in Africa and the Indian Ocean islands, as well as for other winged animals of Asian affinities in the region. The world range of Hemicordulia is largely insular, broadly excluding continents, and H. africana n. sp. demonstrates ‘inverted insularity’: all continental sites are in proximity to large water bodies, such as the great African lakes. This pattern may be related to the climatological instability of these sites, which offer suitable cool habitat where competition is (temporarily) reduced. Hemicordulia prefer cool conditions, but may be vulnerable to overheating and competition with more warm-adapted species.

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