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| Maidana,Nora I.; Seeligmann,Claudia; Morales,Marcelo R.. |
| Aquí presentamos los resultados del estudio de la diversidad del género Navicula Bory en 22 humedales de altura de la provincia de Jujuy, Argentina (22° 30' - 22° 44' S; y 66° 39' - 66° 59' W; entre 3500 y 4683 m snm), incluyendo el Complejo Lagunar Vilama. Los ambientes con mayor riqueza de especies fueron las lagunas Vilama, Catal, Rincón de Cajas y Del Arenal, mientras que en la laguna Colorada el género estuvo ausente. Las especies con mayor frecuencia de ocurrencia fueron Navicula lauca Rumrich & Lange-Bertalot, N. paranicota Rumrich & Lange-Bertalot, N. salinicola Hustedt var. salinicola y N. veneta Kützing. En este trabajo discutimos algunos aspectos ecológicos, biogeográficos y taxonómicos y asignamos a una de las dos Secciones del... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diatomeas; Navicula; Humedales; Alta montaña. |
| Ano: 2011 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-23722011000100002 |
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| Rigolet, Carinne; Thiebaut, Eric; Dubois, Stanislas. |
| Stable carbon and nitrogen isotopic composition (delta C-13 and delta N-15) of benthic organisms was investigated to understand the effects of a gregarious tubicolous amphipod species (Haploops nirae) on benthic food web structures and test whether drastic changes in species composition cause changes in food web structure. The habitat engineered by this species was sampled and compared with the adjacent uncolonized Amphiura filiformis muddy habitat in winter and summer. The isotopic signatures of macrofaunal and megafaunal species associated with both habitats were analysed along with potential food sources at each sampling period. Similar food web structures for each habitat (and each season), with high delta N-15 ranges spanning over 3 trophic levels,... |
| Tipo: Text |
Palavras-chave: Stable isotopes; Gregarious amphipod; Source contribution; Haploops; Benthic diatoms; Navicula. |
| Ano: 2014 |
URL: https://archimer.ifremer.fr/doc/00187/29822/28259.pdf |
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