Cyphoderus (Cyphoderidae) as a major component of collembolan cave fauna in Thailand, with description of two new species

Jantarit, Sopark; Satasook, Chutamas; Deharveng, Louis

doi:10.3897/zookeys.368.6393

Cited by 15 publications

(4 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Besides the elongated fourth abdominal segment ( Fig. 1 ), Paronellini, Bromacanthini, and Cyphoderidae have the presence of body scales with fine ciliations as well as reduced cephalic and tergal macrochaetae with developed bothriotrichal complexes 11 15 26 27 , which are also the representative features for Lepidocyrtinae 5 . Tergal S-chaetotaxy 1, 1/0, 1, 1 from mesothorax to Abd.…”

Section: Discussionmentioning

confidence: 99%

Molecular phylogeny supports S-chaetae as a key character better than jumping organs and body scales in classification of Entomobryoidea (Collembola)

Zhang

Sun

et al. 2015

Sci Rep

View full text Add to dashboard Cite

The jumping organ (furcula) is the most characteristic structure among collembolans, and it is of great taxonomical values at higher levels. The largest superfamily Entomobryoidea is traditionally classified into four families only by the morphology of the furcula. Actually, many taxa among these families are strikingly similar in morphology without considering furcula. The phylogeny of Entomobryoidea was reconstructed here based on mitochondrial and ribosomal fragments. This indicated that both Paronellidae and Cyphoderidae were ingroups within Entomobryidae with the former polyphyletic. Topology tests, which used the likelihood and Bayesian approaches, also rejected the traditional hypotheses relying on furcula morphology. Further ancestral state reconstructions have revealed that traditional taxonomical characters, i.e., furcula and body scales, had multiple independent origins in Entomobryoidea whereas tergal specialized chaetae (S-chaetae) exhibited strong phylogenetic signals. By integrating both molecular and morphological evidence, the results of this study drastically undermine the present classification of Entomobryoidea. Tergal S-chaetotaxic pattern in combination with other characters are more reasonable in taxonomy at suprageneric levels than convergent furcula. This study provides new insights of the jumping organ, which could be adaptively modified during evolution of Collembola.

show abstract

Section: Discussionmentioning

confidence: 99%

Molecular phylogeny supports S-chaetae as a key character better than jumping organs and body scales in classification of Entomobryoidea (Collembola)

Zhang

Sun

et al. 2015

Sci Rep

View full text Add to dashboard Cite

show abstract

“…These pseudopores are present in Cyphoderopsis (Jantarit et al 2013) and were reported in various number (4-10+4-10) under the name "lenticular organs" sensu Christiansen and Bellinger (1996) in Trogolaphysa (Soto-Adames and Taylor 2013) and in Troglobius (Cipola et al 2016). They have also been detected in Cyphoderidae (Jantarit et al 2014), but not in other families of Entomobryoidea, pointing to relatedness between the cited genera and Cyphoderidae, which have led some Collembologists to consider Cyphoderidae as a subfamily of Paronellidae.…”

Section: Genus Troglopedetes Joseph 1872mentioning

confidence: 89%

The multiformity of antennal chaetae in Troglopedetes Joseph, 1872 (Collembola, Paronellidae, Troglopedetinae), with descriptions of two new species from Thailand

Jantarit¹,

Surakhamhaeng²,

Deharveng³

2020

Self Cite

View full text Add to dashboard Cite

Two new species of the genus Troglopedetes Joseph, 1872 (T. meridionalissp. nov. and T. kaesp. nov.) are described from caves of the Thai peninsula. This is the first report of the genus south of the Kra Isthmus. The two new species have two rows of dental spines shared by all Thai Troglopedetes. They differ from other members of the genus mainly in the arrangement of dorsal chaetotaxy on head. The antennal chaetotaxy of the two species is analysed in detail in the second part of the paper. All types of antennal chaetae of both new species and their distribution patterns are described for each antennal segment: scales, ordinary chaetae, S-chaetae and subapical organite of Ant. IV. Twenty different types of chaetae are recognised and all except one are present in both species. The total numbers of ordinary chaetae and S-chaetae and their patterns of distribution on antenna are very similar between the two species (483 vs. 518 ordinary chaetae; 207 vs. 208 S-chaetae). Each type of chaetae has its own distribution pattern, markedly contrasted between dorsal and ventral side of antennae, and between antennal segments. This diversity of morphologies and distribution patterns and their similarity between the two species, as well as differences with other species of the same family, suggest that antennal chaetotaxy could provide powerful new characters for the taxonomy of Troglopedetes and related genera.

show abstract

“…Species resembling the temperate, strictly myrmecophilous Cyphoderus albinus Nicolet, 1842 form a major component of cave communities in Hang Mo So and other MDL-HC caves. As in Thailand [81], they are not associated with ants or termites in caves, and are rarely present in soils.…”

mentioning

confidence: 96%

A Hotspot of Subterranean Biodiversity on the Brink: Mo So Cave and the Hon Chong Karst of Vietnam

Deharveng,

Le,

Bedos

et al. 2023

Diversity

Self Cite

View full text Add to dashboard Cite

The southern part of the Mekong Delta Limestones of Vietnam (MDL-HC or Hon Chong karst) comprises numerous small limestone hills. It is a hotspot of biodiversity for soil and cave invertebrates. Here, we synthesize the results of biological surveys carried out in Hang Mo So, the richest MDL-HC cave for troglobionts, and in surrounding karsts. Methodologies for the ecological characterization of species are discussed, with emphasis on parallel sampling (external soil plus cave). Hang Mo So has 27 troglobionts, including many still undescribed. An additional 40 cave-obligate species are known from other caves of MDL-HC. Among them, several are expected to be found in Hang Mo So. Most troglobionts of MDL-HC are endemic. Several relictual taxa without close relatives in Southeast Asia occur in Hang Mo So and in MDL-HC, reflecting an ancient origin of the fauna. The reasons for this richness are uncertain, but the cause of its current destruction—quarrying—is all too evident. Most of the original 4 km2 of the MDL-HC karst has been destroyed or soon will be, ultimately leaving only 1.6 km2 unquarried. Endemic species linked to karst habitats are, therefore, under clear threat of extinction. The Hon Chong karst (MDL-HC) was listed among the ten most endangered karsts on the planet 25 years ago. Today it would probably top the list.

show abstract

Cyphoderus (Cyphoderidae) as a major component of collembolan cave fauna in Thailand, with description of two new species

Cited by 15 publications

References 11 publications

Molecular phylogeny supports S-chaetae as a key character better than jumping organs and body scales in classification of Entomobryoidea (Collembola)

Molecular phylogeny supports S-chaetae as a key character better than jumping organs and body scales in classification of Entomobryoidea (Collembola)

The multiformity of antennal chaetae in Troglopedetes Joseph, 1872 (Collembola, Paronellidae, Troglopedetinae), with descriptions of two new species from Thailand

A Hotspot of Subterranean Biodiversity on the Brink: Mo So Cave and the Hon Chong Karst of Vietnam

Contact Info

Product

Resources

About