Curt W. Harden, Robert L. Davidson, Thomas E. Malabad, Michael S. Caterino, D. Maddison
{"title":"Phylogenetic systematics of the enigmatic genus Horologion Valentine, 1932 (Coleoptera, Carabidae, Trechinae, Horologionini), with description of a new species from Bath County, Virginia","authors":"Curt W. Harden, Robert L. Davidson, Thomas E. Malabad, Michael S. Caterino, D. Maddison","doi":"10.3897/subtbiol.48.114404","DOIUrl":"https://doi.org/10.3897/subtbiol.48.114404","url":null,"abstract":"Horologion Valentine, one of the rarest and most enigmatic carabid beetle genera in the world, was until now known only from the holotype of Horologion speokoites Valentine, discovered in 1931 in a small cave in West Virginia. A single specimen of a new species from Virginia was collected in 1991, but overlooked until 2018. DNA sequence data from specimens of this new species, Horologion hubbardisp. nov., collected in 2022 and 2023, as well as a critical examination of the external morphology of both species, allow us to confidently place Horologion in the supertribe Trechitae, within a clade containing Bembidarenini and Trechini. A more specific placement as sister to the Gondwanan Bembidarenini is supported by DNA sequence data. Previous hypotheses placing Horologion in or near the tribes Anillini, Tachyini, Trechini, Patrobini, and Psydrini are rejected. The existence of two species of Horologion on opposite sides of the high mountains of the middle Appalachians suggests that these mountains are where the ancestral Horologion populations dispersed from, and predicts the discovery of additional populations and species. All specimens of H. hubbardi were collected in or near drip pools, and most were found dead, suggesting that the terrestrial epikarst, rather than caves, is the true habitat of Horologion, which explains their extreme rarity since epikarst has not been directly sampled. We recognize the tribe Horologionini, a relict lineage without any close relatives known in the Northern Hemisphere, and an important part of Appalachian biodiversity.","PeriodicalId":48493,"journal":{"name":"Subterranean Biology","volume":"54 40","pages":""},"PeriodicalIF":1.1,"publicationDate":"2024-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139447105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. Deleva, Andres Ulloa, Hernani F. M. Oliveira, Nikolay Simov, Ferdinando Didonna, G. Chaverri
{"title":"Cave-dwelling fauna of Costa Rica: current state of knowledge and future research perspectives","authors":"S. Deleva, Andres Ulloa, Hernani F. M. Oliveira, Nikolay Simov, Ferdinando Didonna, G. Chaverri","doi":"10.3897/subtbiol.47.113219","DOIUrl":"https://doi.org/10.3897/subtbiol.47.113219","url":null,"abstract":"This study focused on the cave fauna of Costa Rica, which has remained relatively understudied despite the presence of more than 435 recorded natural caves and artificial subterranean sites. We collected and reviewed all available literature data on cave fauna in Costa Rica and created the first comprehensive review of the existing information. In addition, we report new records from field surveys conducted between 2015 and 2018. This study reported approximately 123 animal species, whereas the remaining records (n = 82) represented taxa that could not be identified at the species level. Data were collected from 127 locations throughout the country, with new cave fauna records from 41 sites. Notably, we reported the first occurrence of the true bug Amnestus subferrugineus (Westwood 1837) within Costa Rican caves, which represents an addition to the country’s faunal inventory. As this study highlights the knowledge gaps in the subterranean fauna, it will serve as an important stepping stone for future research and conservation efforts related to caves in Costa Rica.","PeriodicalId":48493,"journal":{"name":"Subterranean Biology","volume":"33 11","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138587661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kathryn E. Perez, Yamileth Guerrero, Roel Castañeda, Peter H. Diaz, R. Gibson, Benjamin Schwartz, Benjamin T. Hutchins
{"title":"Two new phreatic snails (Mollusca, Caenogastropoda, Cochliopidae) from the Edwards and Edwards-Trinity aquifers, Texas","authors":"Kathryn E. Perez, Yamileth Guerrero, Roel Castañeda, Peter H. Diaz, R. Gibson, Benjamin Schwartz, Benjamin T. Hutchins","doi":"10.3897/subtbiol.47.113186","DOIUrl":"https://doi.org/10.3897/subtbiol.47.113186","url":null,"abstract":"The Edwards and Edwards-Trinity Aquifers of Texas have diverse stygofauna, including fifteen species of snails found in phreatic and hyporheic habitats. These species have the hallmarks of adaptation to subterranean environments including extremely small body size and the loss of pigmentation and eyes. Here we use an integrative taxonomic approach, using shell, radula, and anatomical features as well as mitochondrial and nuclear DNA data, to circumscribe a new genus and two new cavesnail species from Central Texas. Vitropyrgus lillianaegen. et sp. nov. is described from Comal Springs (Comal County) and Fessenden Springs (Kerr County) and distinguished by a glassy, highly sculptured shell and distinctively simple, unornamented penial morphology. We also describe Phreatodrobia bullasp. nov. from Hidden Springs (Bell County), and several other springs in Bell & Williamson Counties, Texas. This species has a smooth, unsculptured teleoconch, a reflected and flared lip, and deeply concave operculum.","PeriodicalId":48493,"journal":{"name":"Subterranean Biology","volume":"6 17","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138603591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The biospeleological work of Carl L. Hubbs (1894–1979): an appraisal","authors":"Aldemaro Romero Jr., Max Moseley","doi":"10.3897/subtbiol.46.114190","DOIUrl":"https://doi.org/10.3897/subtbiol.46.114190","url":null,"abstract":"Carl Leavitt Hubbs (1894–1979) was a prominent and internationally renowned American ichthyologist whose publications include taxonomic descriptions of several North American blindfishes including the Mexican Cave Characin. His archived personal papers reveal a wide-ranging interest in the biology and evolutionary origins of cave and blindfishes, and his discussions and disputes with colleagues about their taxonomy. He also took opportunities to collect other fauna from American caves during the inter-war decades. Drawing upon his unpublished archive and other relevant sources his biospeleological work is chronicled in detail and discussed in the context of his other work.","PeriodicalId":48493,"journal":{"name":"Subterranean Biology","volume":"298 ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139249378","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Aquatic microdiversity from urban cenotes in Cancun, Quintana Roo, Mexico","authors":"Job Alí Díaz-Hernández, Paul Ugalde-Silva, Christian Berriozabal-Islas, Alejandro Novelo, Jaqueline Hernández-Uc, Abigail Arana-May, Sheila Denisse Pech-Patrón, Iris Aurora Nava-Jiménez, Jessica Borbolla-Vázquez","doi":"10.3897/subtbiol.46.108082","DOIUrl":"https://doi.org/10.3897/subtbiol.46.108082","url":null,"abstract":"The microdiversity of cenotes in the Yucatan Peninsula, Mexico has been little studied, with the phytoplankton and protists being the most representative species. However, all previous studies have been focused on cenotes associated with touristic activities, leaving a gap in the understanding of cenotes located within urban areas. The present study is dedicated to the identification of phytoplankton and protists in the cenotes of Cancun, Quintana Roo, Mexico. We conducted our research in four urban cenotes, collecting samples using a 150 µm plankton net, filtering them with a 45 µm membrane, and examining them under optical microscopy. Subsequently, we calculated the abundance, richness, and completeness of the samples. Our findings revealed a total of 6 phyla, 4 subphyla, 10 classes, 8 subclasses, 15 orders, 15 families, 18 genus, and 17 species and 4 species indeterminata in the cenotes of Cancun, Quintana Roo, Mexico. Among these, there were 8 species of phytoplankton and 1 species indeterminata, while 9 species of protists and 3 species indeterminata. These results highlight the remarkable species richness and the complex structure and composition of urban cenotes, suggesting that some species may be unique to this particular ecosystem. Currently, there is limited knowledge regarding the behavior of these aquifers (urban cenotes), and a comprehensive inventory or characterization of their microdiversity is lacking. Such information could be instrumental in the management, conservation, and sustainable use of these valuable aquifers.","PeriodicalId":48493,"journal":{"name":"Subterranean Biology","volume":" 41","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135291416","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ana Sofia Schneider, Mara Knüsel, Florian Altermatt
{"title":"Assessment of occurrence, diversity, and biomass of macroinvertebrates in Swiss groundwater systems using citizen science data","authors":"Ana Sofia Schneider, Mara Knüsel, Florian Altermatt","doi":"10.3897/subtbiol.46.112569","DOIUrl":"https://doi.org/10.3897/subtbiol.46.112569","url":null,"abstract":"Groundwater is a vast ecosystem harboring a high diversity of specialized taxa. Despite its diversity, groundwater is a still relatively unexplored and threatened ecosystem. Especially the linkage of groundwater with other ecosystems remains largely unknown from the perspective of groundwater fauna. Here, we used citizen science data to get a first baseline knowledge of the occurrence, diversity, and biomass of major macroinvertebrate groups found in shallow groundwater systems of Switzerland. We investigated all organisms collected from the groundwater in 346 spring catchment boxes of municipal drinking water providers. We morphologically identified the organisms on a broad taxonomic level and estimated their biomass and pigmentation using automated image processing. Crustaceans, particularly Niphargus and groundwater isopods, were the most common taxa of obligate groundwater organisms. We also found a surprisingly high number of macroinvertebrates associated with surface and subsurface ecosystems. These taxa might be accidentally entering the groundwater or use it as temporary habitat. In both cases they possibly contribute essential allochthonous energy imports from the surface. We found a positive relationship between the estimated biomass of macroinvertebrates in the samples and the occurrence and abundance of Niphargus . Owing to the widespread occurrences of surface and subsurface macroinvertebrates in our groundwater samples, our study provides evidence for common interactions between groundwater, soil, and surface ecosystems.","PeriodicalId":48493,"journal":{"name":"Subterranean Biology","volume":" 8","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135291293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mohammad Javad Malek-Hosseini, Jean-François Flot, Yaser Fatemi, Hamid Babolimoakher, Matjaž Kuntner, Oleg A. Diripasko, Dušan Jelić, Nina G. Bogutskaya
{"title":"The first record of a stygobiotic form of Garra rufa (Heckel, 1843), sympatric with Garra tashanensis Mousavi-Sabet, Vatandoust, Fatemi & Eagderi, 2016 (Teleostei, Cyprinidae), in Iranian subterranean waters","authors":"Mohammad Javad Malek-Hosseini, Jean-François Flot, Yaser Fatemi, Hamid Babolimoakher, Matjaž Kuntner, Oleg A. Diripasko, Dušan Jelić, Nina G. Bogutskaya","doi":"10.3897/subtbiol.46.108396","DOIUrl":"https://doi.org/10.3897/subtbiol.46.108396","url":null,"abstract":"We report the first finding of the stygobiotic form of the cyprinid fish Garra rufa (Heckel, 1843), discovered in a single locality in southwestern Iran, while the epigean form of the species is widely distributed in western Asia (Iran, Jordan, Lebanon, Turkey, and Syria). We also report a new locality for its hypogean congener, Garra tashanensis , about 5 km east of its type locality. The two species occur in syntopy in outflows of the Tang-e-Ban, a seasonal karstic spring that only has flowing water during winter and spring, when fish individuals are washed from the cave to the surface. Identification of the investigated samples was confirmed by morphological analyses, COI distances, and a phylogenetic tree. These findings suggest the existence of a large karst aquifer in the Tashan area that harbours several cave species of fish, crustaceans, and gastropods and may have considerable conservation implications.","PeriodicalId":48493,"journal":{"name":"Subterranean Biology","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136033245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Biogeographical affinities of the aquatic community of Refugio Cave, a newly discovered Astyanax cave","authors":"Luis Espinasa, Aidan Pech","doi":"10.3897/subtbiol.46.102043","DOIUrl":"https://doi.org/10.3897/subtbiol.46.102043","url":null,"abstract":"Pachón cave in the Sierra de El Abra, in Northeast Mexico, stands out as hosting the world’s most widely studied cavefish population – with over 500 scholarly articles published about the population. Refugio Cave was recently discovered in the El Abra region. This cave hosts the mysid cave shrimp Spelaeomysis quinterensis and the blind cave tetra fish, Astyanax mexicanus . This study aims to understand how the aquatic community of Refugio Cave es related to other cave populations in the area. For this purpose, the Histone H3 gene of mysid shrimps and the OCA2 gene that confers albinism in Astyanax fish was sequenced. Results support that the Refugio and Pachón aquatic communities, which are only 4.5 km away apart, are closely related. Thus, the Refugio Cave population may contribute to better understand the evolutionary history of such an important population and, perhaps, help with Pachon’s cavefish conservation.","PeriodicalId":48493,"journal":{"name":"Subterranean Biology","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136152913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Martín Alonso Buenavad-González, Jesús M. López-Vila, David Torres-Vázquez, Sonia Gabriela Hernández-Ávila, Kaleb Zárate-Gálvez, Jairo Arroyave
{"title":"New records of cave-dwelling populations of Rhamdia catfishes (Siluriformes, Heptapteridae) from Chiapas, Mexico","authors":"Martín Alonso Buenavad-González, Jesús M. López-Vila, David Torres-Vázquez, Sonia Gabriela Hernández-Ávila, Kaleb Zárate-Gálvez, Jairo Arroyave","doi":"10.3897/subtbiol.46.110269","DOIUrl":"https://doi.org/10.3897/subtbiol.46.110269","url":null,"abstract":"Dedicated ichthyological surveys in four active karstic caves in the Mexican state of Chiapas (Grijalva River drainage basin) resulted in the discovery of the same number of hypogean populations of Rhamdia catfishes assignable to two different species: R. laticauda and R. guatemalensis. The taxonomic identity of these populations was initially determined based on morphological traits and subsequently corroborated with molecular data in a phylogenetic framework. For the most part, these newly discovered populations exhibit partial and variable troglomorphism (vs. fixed), a pattern that has been observed in most other cave-dwelling species/populations of Mexican Rhamdia, and possibly caused by gene flow with and/or incipient speciation from epigean lineages. Since most hypogean forms of Mexican Rhamdia derive from/are part of a larger R. laticauda clade, our discovery of cave-dwelling populations assignable to R. guatemalensis is noteworthy and includes the very first record of a R. guatemalensis population with pronounced and widespread troglomorphism. Our discovery of hitherto unrecorded populations of hypogean Rhamdia highlights the continued importance of exploration in the process of documenting subterranean biodiversity, particularly in regions of the world rich with cave systems. Our findings corroborate the notion that, among Neotropical fishes, the catfish genus Rhamdia is one of the most prone and effective at colonizing subterranean habitats and establishing viable hypogean populations.","PeriodicalId":48493,"journal":{"name":"Subterranean Biology","volume":"179 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135063602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}