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Three rare European 'Alona' taxa (Branchiopoda: Cladocera: Chydoridae), with notes on distribution and taxonomy

Kay Van Damme (UGent) , Manuel Elías-Gutíerrez and Henri Dumont (UGent)
(2011) ANNALES DE LIMNOLOGIE-INTERNATIONAL JOURNAL OF LIMNOLOGY. 47(1). p.45-63
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Abstract
Taxonomical efforts in freshwater zooplankton are continuously needed for the delineation of species. Even today, confusion exists in correct identification of several European Cladocera because of poor original descriptions and subtle differences in morphology. In this context, we discuss three of the rarest Alona-like Chydoridae in the Palaearctic and their validity. 1) Alona moniezi, only reported once from Vichy area, France, has a male indistinguishable from that of A. elegans Kurz, 1875 while females show characters of A. elegans and of Coronatella rectangula. We provide a description of this taxon, with intermediate morphology and discuss the possibilities of hybridization. 2) Alona karelica is unusual as one of the few eurythermic species of a predominantly stenothermic A. pulchella-group. We discuss Neotropical A. cf. karelica from Mexico as its closest relative. Both show similarities with the semi-terrestrial A. bromelicola from Nicaragua, forming a small A. karelica-section within the A. pulchella-group. 3) A. weltneri is redescribed based on type material and we confirm it as a member of the A. costata-group. We discuss the three taxa and expand their diagnosis. A. weltneri and A. karelica are both found sporadically, and little is known about their ecology. Their scarcity in the Palaearctic may be linked with specialisation to a peculiar habitat and the possibility that these are true relicts.
Keywords
Alona weltneri, Alona moniezi (Alona elegans group), Chydoridae, Palaearctic, CRUSTACEA, ANOMOPODA, GENUS, WATER, Alona karelica, Cladocera

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MLA
Van Damme, Kay, et al. “Three Rare European ‘Alona’ Taxa (Branchiopoda: Cladocera: Chydoridae), with Notes on Distribution and Taxonomy.” ANNALES DE LIMNOLOGIE-INTERNATIONAL JOURNAL OF LIMNOLOGY, vol. 47, no. 1, 2011, pp. 45–63, doi:10.1051/limn/2010034.
APA
Van Damme, K., Elías-Gutíerrez, M., & Dumont, H. (2011). Three rare European “Alona” taxa (Branchiopoda: Cladocera: Chydoridae), with notes on distribution and taxonomy. ANNALES DE LIMNOLOGIE-INTERNATIONAL JOURNAL OF LIMNOLOGY, 47(1), 45–63. https://doi.org/10.1051/limn/2010034
Chicago author-date
Van Damme, Kay, Manuel Elías-Gutíerrez, and Henri Dumont. 2011. “Three Rare European ‘Alona’ Taxa (Branchiopoda: Cladocera: Chydoridae), with Notes on Distribution and Taxonomy.” ANNALES DE LIMNOLOGIE-INTERNATIONAL JOURNAL OF LIMNOLOGY 47 (1): 45–63. https://doi.org/10.1051/limn/2010034.
Chicago author-date (all authors)
Van Damme, Kay, Manuel Elías-Gutíerrez, and Henri Dumont. 2011. “Three Rare European ‘Alona’ Taxa (Branchiopoda: Cladocera: Chydoridae), with Notes on Distribution and Taxonomy.” ANNALES DE LIMNOLOGIE-INTERNATIONAL JOURNAL OF LIMNOLOGY 47 (1): 45–63. doi:10.1051/limn/2010034.
Vancouver
1.
Van Damme K, Elías-Gutíerrez M, Dumont H. Three rare European “Alona” taxa (Branchiopoda: Cladocera: Chydoridae), with notes on distribution and taxonomy. ANNALES DE LIMNOLOGIE-INTERNATIONAL JOURNAL OF LIMNOLOGY. 2011;47(1):45–63.
IEEE
[1]
K. Van Damme, M. Elías-Gutíerrez, and H. Dumont, “Three rare European ‘Alona’ taxa (Branchiopoda: Cladocera: Chydoridae), with notes on distribution and taxonomy,” ANNALES DE LIMNOLOGIE-INTERNATIONAL JOURNAL OF LIMNOLOGY, vol. 47, no. 1, pp. 45–63, 2011.
@article{1845047,
  abstract     = {{Taxonomical efforts in freshwater zooplankton are continuously needed for the delineation of species. Even today, confusion exists in correct identification of several European Cladocera because of poor original descriptions and subtle differences in morphology. In this context, we discuss three of the rarest Alona-like Chydoridae in the Palaearctic and their validity. 1) Alona moniezi, only reported once from Vichy area, France, has a male indistinguishable from that of A. elegans Kurz, 1875 while females show characters of A. elegans and of Coronatella rectangula. We provide a description of this taxon, with intermediate morphology and discuss the possibilities of hybridization. 2) Alona karelica is unusual as one of the few eurythermic species of a predominantly stenothermic A. pulchella-group. We discuss Neotropical A. cf. karelica from Mexico as its closest relative. Both show similarities with the semi-terrestrial A. bromelicola from Nicaragua, forming a small A. karelica-section within the A. pulchella-group. 3) A. weltneri is redescribed based on type material and we confirm it as a member of the A. costata-group. We discuss the three taxa and expand their diagnosis. A. weltneri and A. karelica are both found sporadically, and little is known about their ecology. Their scarcity in the Palaearctic may be linked with specialisation to a peculiar habitat and the possibility that these are true relicts.}},
  author       = {{Van Damme, Kay and Elías-Gutíerrez, Manuel and Dumont, Henri}},
  issn         = {{0003-4088}},
  journal      = {{ANNALES DE LIMNOLOGIE-INTERNATIONAL JOURNAL OF LIMNOLOGY}},
  keywords     = {{Alona weltneri,Alona moniezi (Alona elegans group),Chydoridae,Palaearctic,CRUSTACEA,ANOMOPODA,GENUS,WATER,Alona karelica,Cladocera}},
  language     = {{eng}},
  number       = {{1}},
  pages        = {{45--63}},
  title        = {{Three rare European 'Alona' taxa (Branchiopoda: Cladocera: Chydoridae), with notes on distribution and taxonomy}},
  url          = {{http://dx.doi.org/10.1051/limn/2010034}},
  volume       = {{47}},
  year         = {{2011}},
}
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