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Redescription of two subterranean amphipods Niphargusmolnari Méhely, 1927 and Niphargusgebhardti Schellenberg, 1934 (Amphipoda, Niphargidae) and their phylogenetic position.

Angyal D, Balázs G, Zakšek V, Krízsik V, Fišer C - Zookeys (2015)

Bottom Line: Using three independent molecular markers we showed that Niphargusgebhardti belongs to the clade distributed between Central and Eastern Europe, whereas phylogenetic relationship of Niphargusmolnari 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.

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Zoology, Hungarian Natural History Museum, Baross u. 13, 1088 Budapest, Hungary ; Doctoral School of Animal-and Agricultural Environmental Sciences, Department of Animal Sciences and Animal Husbandry, Georgikon Faculty, University of Pannonia, Deák Ferenc u. 16, 8360 Keszthely, Hungary.

ABSTRACT
A detailed redescription of two endemic, cave-dwelling niphargid species of the Hungarian Mecsek Mts., Niphargusmolnari Méhely, 1927 and Niphargusgebhardti 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 Niphargusgebhardti belongs to the clade distributed between Central and Eastern Europe, whereas phylogenetic relationship of Niphargusmolnari 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.

No MeSH data available.


Distribution of Niphargusmolnari and Niphargusgebhardti within the Western Mecsek.
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Figure 18: Distribution of Niphargusmolnari and Niphargusgebhardti within the Western Mecsek.

Mentions: Among the studied two species, Niphargusgebhardti was collected more frequently, as it was found in five other caves of the Western Mecsek in addition to the type locality, namely Trió Cave, Gilisztás Sinkhole, Szajha-felső Sinkhole, Vadetetős Sinkhole and Spirál Sinkhole (Fig. 18). In most of these, two types of water bodies exist: i) small pools of residual- or percolated/dripping water and ii) streams or minor streaming water. Amount of water in the caves is dependent on the rainfall in the surface. In all six caves, Niphargusgebhardti specimens were found in isolated, shallow pools in limestone, sinter or clay, most likely formed by dripping water (Fig. 19). Specimens were never observed in streams or any other streaming waters. During our repeated visits between 2010 and 2013 (altogether 24 visits in the 6 caves), the same pools were checked every time and some specimens were always found in them (except when the pools dried out). Once it was observed that a group of Niphargusgebhardti (approximately 20 specimens) were fed upon a dead Oxychilus snail in a pool.


Redescription of two subterranean amphipods Niphargusmolnari Méhely, 1927 and Niphargusgebhardti Schellenberg, 1934 (Amphipoda, Niphargidae) and their phylogenetic position.

Angyal D, Balázs G, Zakšek V, Krízsik V, Fišer C - Zookeys (2015)

Distribution of Niphargusmolnari and Niphargusgebhardti within the Western Mecsek.
© Copyright Policy - creative-commons-attribution
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4493343&req=5

Figure 18: Distribution of Niphargusmolnari and Niphargusgebhardti within the Western Mecsek.
Mentions: Among the studied two species, Niphargusgebhardti was collected more frequently, as it was found in five other caves of the Western Mecsek in addition to the type locality, namely Trió Cave, Gilisztás Sinkhole, Szajha-felső Sinkhole, Vadetetős Sinkhole and Spirál Sinkhole (Fig. 18). In most of these, two types of water bodies exist: i) small pools of residual- or percolated/dripping water and ii) streams or minor streaming water. Amount of water in the caves is dependent on the rainfall in the surface. In all six caves, Niphargusgebhardti specimens were found in isolated, shallow pools in limestone, sinter or clay, most likely formed by dripping water (Fig. 19). Specimens were never observed in streams or any other streaming waters. During our repeated visits between 2010 and 2013 (altogether 24 visits in the 6 caves), the same pools were checked every time and some specimens were always found in them (except when the pools dried out). Once it was observed that a group of Niphargusgebhardti (approximately 20 specimens) were fed upon a dead Oxychilus snail in a pool.

Bottom Line: Using three independent molecular markers we showed that Niphargusgebhardti belongs to the clade distributed between Central and Eastern Europe, whereas phylogenetic relationship of Niphargusmolnari 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.

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Zoology, Hungarian Natural History Museum, Baross u. 13, 1088 Budapest, Hungary ; Doctoral School of Animal-and Agricultural Environmental Sciences, Department of Animal Sciences and Animal Husbandry, Georgikon Faculty, University of Pannonia, Deák Ferenc u. 16, 8360 Keszthely, Hungary.

ABSTRACT
A detailed redescription of two endemic, cave-dwelling niphargid species of the Hungarian Mecsek Mts., Niphargusmolnari Méhely, 1927 and Niphargusgebhardti 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 Niphargusgebhardti belongs to the clade distributed between Central and Eastern Europe, whereas phylogenetic relationship of Niphargusmolnari 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.

No MeSH data available.