Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Re-description of Daphnia (Ctenodaphnia) from lakes in the Khumbu Region, Nepalese Himalayas, with the erection of a new species, Daphnia himalaya, and a note on an intersex individual |
| Abstract | We present here a detailed description of Ctenodaphnia-type Daphnia specimens collected from lakes in the Nepalese Himalayas between 1994 and 2004, including mature females and adult males. The specimens examined share certain diagnostic traits with Daphnia tibetana (Sars 1903), and others with Daphnia fusca (Gurney 1906). A re-appraisal of their previous synonymy with D. fusca and a comparison with all published descriptions of similar species from the region indicate that they represent a new species named here as Daphnia himalaya. The chance discovery of a sex intergrade of the same species allowed a description of the secondary sexual characteristics in this interesting and rare intermediate state to be reported, and its possible ecological implications to be discussed, as well. |
| Source | Journal of limnology (Testo stamp.) 65(2), pp. 132–140 |
| Keywords | CladoceraDaphniataxonomyHimalayassex intergrade |
| Journal | Journal of limnology (Testo stamp.) |
| Editor | Istituto per lo Studio degli Ecosistemi., Verbania Pallanza, Italia |
| Year | 2006 |
| Type | Articolo in rivista |
| Authors | Manca M., Martin P.(1), Peñalva-Arana D.C.(2), Benzie J.A.H.(3) |
| Text | 52927 2006 Cladocera Daphnia taxonomy Himalayas sex intergrade Re description of Daphnia Ctenodaphnia from lakes in the Khumbu Region, Nepalese Himalayas, with the erection of a new species, Daphnia himalaya, and a note on an intersex individual Manca M., Martin P. 1 , Peñalva Arana D.C. 2 , Benzie J.A.H. 3 1 Dept. of Biology, University of York, York UK ; 2 Great Lakes Water Institute, UW Milwaukee, USA ; 3 Plant Systems Biology, Vlanders Interuniversity Inst. Biotechnology, Technologiepark, Ghent, Belgio We present here a detailed description of Ctenodaphnia type Daphnia specimens collected from lakes in the Nepalese Himalayas between 1994 and 2004, including mature females and adult males. The specimens examined share certain diagnostic traits with Daphnia tibetana Sars 1903 , and others with Daphnia fusca Gurney 1906 . A re appraisal of their previous synonymy with D. fusca and a comparison with all published descriptions of similar species from the region indicate that they represent a new species named here as Daphnia himalaya. The chance discovery of a sex intergrade of the same species allowed a description of the secondary sexual characteristics in this interesting and rare intermediate state to be reported, and its possible ecological implications to be discussed, as well. 65 2 Published version Articolo in rivista Istituto per lo Studio degli Ecosistemi. 1129 5767 Journal of limnology Testo stamp. Journal of limnology Testo stamp. J. limnol. Testo stamp. Journal of limnology. Testo stamp. marinamarcella.manca MANCA MARINA MARCELLA DG.RSTL.094.009 Evoluzione della biodiversita e valutazione della banca degli stadi duraturi di organismi acquatici di laghi remoti |