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The Yucatán Peninsula is a karstic region, rich in subterranean environments with a diverse crustacean stygobiont fauna. In order to gain insights into the biological evolution of the subterranean environments of this region, we evaluated the ostracode species composition of caves and cenotes in five independent sampling campaigns (2008, 2013, 2017–2019). Using morphometric analyses, we evaluated inter-population morphological variability; using molecular analysis based on mitochondrial COI and nuclear 18S rDNA, we evaluated genetic differentiation in selected species. The observed fauna is composed of 20 (epigean) species, presenting a lack of strict stygobionts. Morphometric analyses discriminated up to three morphotypes in each of the three most abundant species: Cytheridella ilosvayi, Alicenula sp. and Cypridopsis vidua. High intraspecific morphological variability was found either in shape or size. Phylogenetic analysis based on COI demonstrated the existence of three lineages on C. ilosvayi, with high support (>0.9). The 18S rDNA sequences were identical among individuals of different populations. A lack of congruence between the genetic markers precluded us from postulating speciation in subterranean environments. It is likely that Late Pleistocene—Early Holocene climate variation related to sea level and precipitation was forcing agent for epigean ostracode dominance in subterranean environments of the Peninsula.
Laura Macario-González; Sergio Cohuo; Dorottya Angyal; Liseth Pérez; Maite Mascaró. Subterranean Waters of Yucatán Peninsula, Mexico Reveal Epigean Species Dominance and Intraspecific Variability in Freshwater Ostracodes (Crustacea: Ostracoda). Diversity 2021, 13, 44 .
AMA StyleLaura Macario-González, Sergio Cohuo, Dorottya Angyal, Liseth Pérez, Maite Mascaró. Subterranean Waters of Yucatán Peninsula, Mexico Reveal Epigean Species Dominance and Intraspecific Variability in Freshwater Ostracodes (Crustacea: Ostracoda). Diversity. 2021; 13 (2):44.
Chicago/Turabian StyleLaura Macario-González; Sergio Cohuo; Dorottya Angyal; Liseth Pérez; Maite Mascaró. 2021. "Subterranean Waters of Yucatán Peninsula, Mexico Reveal Epigean Species Dominance and Intraspecific Variability in Freshwater Ostracodes (Crustacea: Ostracoda)." Diversity 13, no. 2: 44.
This study provides an updated checklist and an illustrated guide to the 17 currently known stygobiont Malacostraca species of the state of Yucatan (Yucatan Peninsula, Mexico). The compilation is based on the individuals collected during our cave-diving expeditions (2016–2019), and, has the purpose of expanding previous knowledge on the taxonomy of these subterranean crustaceans. The identification guide contains drawings of the main diagnostic characters of the species as well as a brief introduction of the relevant malacostracan orders. The information is further complemented with a historic account and timeline of the stygobiont Malacostraca species of the Yucatan Peninsula. This is the first study that provides a unified tool for the morphological identification of these highly endemic species.
Dorottya Angyal; Nuno Simões; Maite Mascaró. Uptaded checklist, historical overview and illustrated guide to the stygobiont Malacostraca (Arthropoda: Crustacea) species of Yucatan (Mexico). Subterranean Biology 2020, 36, 83 -108.
AMA StyleDorottya Angyal, Nuno Simões, Maite Mascaró. Uptaded checklist, historical overview and illustrated guide to the stygobiont Malacostraca (Arthropoda: Crustacea) species of Yucatan (Mexico). Subterranean Biology. 2020; 36 ():83-108.
Chicago/Turabian StyleDorottya Angyal; Nuno Simões; Maite Mascaró. 2020. "Uptaded checklist, historical overview and illustrated guide to the stygobiont Malacostraca (Arthropoda: Crustacea) species of Yucatan (Mexico)." Subterranean Biology 36, no. : 83-108.
Truncatelloid gastropods are one of the most species‐rich subterranean invertebrate groups. Their current taxonomy is based on morphological characters. However, this is not a comprehensive approach and does not take into account the degree of phylogenetic divergence between stygobiont populations inhabiting hydrologically isolated but geographically close caves. We studied two Paladilhiopsis populations of a small and isolated karstic area (Mecsek Mountains, Hungary) with two hydrologically separated cave systems, investigating morphological (shell morphometrics) and genetic (COI, 16S) divergence together. The populations differed both morphologically and genetically: we found strong divergence in the relative width of the shell (best described by the variable “shell angle”) and a 6.4% divergence in COI. This provides strong support for the presence of two distinct taxa; however, it is still doubtful whether they differ at the species or the subspecies level. In one of the caves, we found representatives of both haplotypes (and phenotypes), which can be explained by secondary contact after an allopatric divergence.
Dorottya Angyal; Gergely Balázs; Virág Krízsik; Gábor Herczeg; Zoltán Fehér. Molecular and morphological divergence in a stygobiont gastropod lineage (Truncatelloidea, Moitessieriidae, Paladilhiopsis ) within an isolated karstic area in the Mecsek Mountains (Hungary). Journal of Zoological Systematics and Evolutionary Research 2018, 56, 493 -504.
AMA StyleDorottya Angyal, Gergely Balázs, Virág Krízsik, Gábor Herczeg, Zoltán Fehér. Molecular and morphological divergence in a stygobiont gastropod lineage (Truncatelloidea, Moitessieriidae, Paladilhiopsis ) within an isolated karstic area in the Mecsek Mountains (Hungary). Journal of Zoological Systematics and Evolutionary Research. 2018; 56 (4):493-504.
Chicago/Turabian StyleDorottya Angyal; Gergely Balázs; Virág Krízsik; Gábor Herczeg; Zoltán Fehér. 2018. "Molecular and morphological divergence in a stygobiont gastropod lineage (Truncatelloidea, Moitessieriidae, Paladilhiopsis ) within an isolated karstic area in the Mecsek Mountains (Hungary)." Journal of Zoological Systematics and Evolutionary Research 56, no. 4: 493-504.
A detailed description of a new stygobiont species of the amphipod family Hadziidae, Mayaweckelia troglomorpha Angyal, sp. n. is given, based on material collected in four cenotes of Yucatán federal state, México. Morphology was studied under light microscopy and with scanning electron microscopy. Morphological description is complemented with mitochondrial cytochrome c oxidase subunit I (COI) sequences as barcodes, with affinities to the related taxa and with notes on the species’ ecology. Using COI Bayesian inference and genetic distance analyses, we show that the closest relative of the new species is M. cenoticola, forming a monophyletic group referring to the genus Mayaweckelia. Based on the available sequences, we also revealed that Mayaweckelia and Tuluweckelia are sister genera, standing close to the third Yucatán subterranean genus, Bahadzia. The data gathered on the habitat, distribution, abundance, and ecology will contribute to the conservation planning for M. troglomorpha Angyal, sp. n.
Dorottya Angyal; Efrain Miguel Chavez Solis; Benjamin Magana; Gergely Balázs; Nuno Simões. Mayaweckelia troglomorpha, a new subterranean amphipod species from Yucatán state, México (Amphipoda, Hadziidae). ZooKeys 2018, 735, 1 -25.
AMA StyleDorottya Angyal, Efrain Miguel Chavez Solis, Benjamin Magana, Gergely Balázs, Nuno Simões. Mayaweckelia troglomorpha, a new subterranean amphipod species from Yucatán state, México (Amphipoda, Hadziidae). ZooKeys. 2018; 735 (735):1-25.
Chicago/Turabian StyleDorottya Angyal; Efrain Miguel Chavez Solis; Benjamin Magana; Gergely Balázs; Nuno Simões. 2018. "Mayaweckelia troglomorpha, a new subterranean amphipod species from Yucatán state, México (Amphipoda, Hadziidae)." ZooKeys 735, no. 735: 1-25.
A detailed redescription of two endemic, cave-dwelling niphargid species of the Hungarian Mecsek Mts., Niphargus molnari Méhely, 1927 and Niphargus gebhardti Schellenberg, 1934 is given based on newly collected material. Morphology was studied under light microscopy and with scanning electon microscopy. Morphological descriptions are complemented with mitochondrial cytochrome c oxidase subunit I (COI) sequences as barcodes for both species and with notes on their ecology. Using three independent molecular markers we showed that Niphargus gebhardti belongs to the clade distributed between Central and Eastern Europe, whereas phylogenetic relationship of Niphargus molnari to the rest of Niphargus species is not clear. The two species from the Mecsek Mts. are phylogenetically not closely related. Both species need to be treated as vulnerable according to IUCN Red List of Threatened Species.
Dorottya Angyal; Gergely Balázs; Valerija Zakšek; Virág Krízsik; Cene Fišer. Redescription of two subterranean amphipods Niphargus molnari Méhely, 1927 and Niphargus gebhardti Schellenberg, 1934 (Amphipoda, Niphargidae) and their phylogenetic position. ZooKeys 2015, 509, 53 -85.
AMA StyleDorottya Angyal, Gergely Balázs, Valerija Zakšek, Virág Krízsik, Cene Fišer. Redescription of two subterranean amphipods Niphargus molnari Méhely, 1927 and Niphargus gebhardti Schellenberg, 1934 (Amphipoda, Niphargidae) and their phylogenetic position. ZooKeys. 2015; 509 (509):53-85.
Chicago/Turabian StyleDorottya Angyal; Gergely Balázs; Valerija Zakšek; Virág Krízsik; Cene Fišer. 2015. "Redescription of two subterranean amphipods Niphargus molnari Méhely, 1927 and Niphargus gebhardti Schellenberg, 1934 (Amphipoda, Niphargidae) and their phylogenetic position." ZooKeys 509, no. 509: 53-85.
Research of the Hungarian Niphargus species is a rather neglected field. This is due to the growing distance between the level of knowledge about Hungarian species and the elaboration determined by the international publications, which had caused a hardly negotiable inconvenience in the judgment of the state of the Hungarian species. The clarification of species in questionable positions could be the starting point of further inland research. During our work, the species with Hungarian distributions were assigned based on the literature's data, and were evaluated with morphological examinations of the specimens collected by us from their type localities and other habitats. Considering the validity of the species we created three categories. Eight of the 20 species proved to be invalid or non-inland species, three remain in an uncertain taxonomic state, while nine are classifiable into the 'valid Hungarian species' category. During the 43 samplings in 27 localities we added new distributional data for seven species.
Gergely Balázs; Dorottya Angyal; Előd Kondorosy. Niphargus (Crustacea: Amphipoda) species in Hungary: literature review, current taxonomy and the updated distribution of valid taxa. Zootaxa 2015, 3974, 361 -376.
AMA StyleGergely Balázs, Dorottya Angyal, Előd Kondorosy. Niphargus (Crustacea: Amphipoda) species in Hungary: literature review, current taxonomy and the updated distribution of valid taxa. Zootaxa. 2015; 3974 (3):361-376.
Chicago/Turabian StyleGergely Balázs; Dorottya Angyal; Előd Kondorosy. 2015. "Niphargus (Crustacea: Amphipoda) species in Hungary: literature review, current taxonomy and the updated distribution of valid taxa." Zootaxa 3974, no. 3: 361-376.
In Europe two ixodid bat tick species, Ixodes vespertilionis and I. simplex were hitherto known to occur.
Sándor Hornok; Jenő Kontschán; Dávid Kováts; Richard Kovacs; Dorottya Angyal; Tamás Görföl; Zsolt Polacsek; Zsuzsa Kalmar; Andrei D Mihalca. Bat ticks revisited: Ixodes ariadnae sp. nov. and allopatric genotypes of I. vespertilionis in caves of Hungary. Parasites & Vectors 2014, 7, 202 -202.
AMA StyleSándor Hornok, Jenő Kontschán, Dávid Kováts, Richard Kovacs, Dorottya Angyal, Tamás Görföl, Zsolt Polacsek, Zsuzsa Kalmar, Andrei D Mihalca. Bat ticks revisited: Ixodes ariadnae sp. nov. and allopatric genotypes of I. vespertilionis in caves of Hungary. Parasites & Vectors. 2014; 7 (1):202-202.
Chicago/Turabian StyleSándor Hornok; Jenő Kontschán; Dávid Kováts; Richard Kovacs; Dorottya Angyal; Tamás Görföl; Zsolt Polacsek; Zsuzsa Kalmar; Andrei D Mihalca. 2014. "Bat ticks revisited: Ixodes ariadnae sp. nov. and allopatric genotypes of I. vespertilionis in caves of Hungary." Parasites & Vectors 7, no. 1: 202-202.