Buscar
Mostrando ítems 21-30 de 96
First description of the pupa and male of the Neotropical predatory midge Pellucidomyia oliveirai (Lane) (Diptera: Ceratopogonidae)
(EDP Sciences, 2017-02)
The pupa and reared adult male of the Neotropical predatory midge Pellucidomyia oliveirai (Lane) are described, photographed and illustrated for the first time. The genus Pellucidomyia Macfie is reported for the first time ...
First description of immature stages and adult females of Stilobezzia (Acanthohelea) megatheca (Diptera: Ceratopogonidae) from Patagonia
(EDP Sciences, 2017-03)
The larva, pupa and adult female of Stilobezzia (Acanthohelea) megatheca Cazorla and Spinelli are described in this report. The immature stages were collected from the bank of a stream near Puerto Patriada, in the province ...
Phytoplankton from the Peri-Pampean hills: Córdoba system
(Schweizerbart Science Publishers, 2014-06)
The province of Córdoba, located in the central region of Argentina, is subdivided into two areas: a hilly area to the west and a plain to the east. The fl uvio-lacustrine systems developed in these areas form both exorheic ...
Description of mature larvae of the genus Austrelmis Brown from Argentina (Insecta: Coleoptera, Elmidae)
(EDP Sciences, 2016-09)
Mature larvae of two species of the riffle beetle genus Austrelmis Brown are described and illustrated for the first time: Austrelmis catamarcensis Manzo and Archangelsky and Austrelmis talampayensis Manzo and Archangelsky. ...
Differences in bacterial community-level physiological profiles between deep and shallow north-patagonian Andean lakes
(E Schweizerbartsche Verlags, 2018-12)
The utilization of carbon substrates by bacteria results in a process of great ecological significance for aquatic ecosystems. Bacteria are capable of consuming a wide range of organic molecules, but despite the highly ...
Increase in rubisco activity and gene expression due to elevated temperature partially counteracts ultraviolet radiation-induced photoinhibition in the marine diatom thalassiosira weissflogii
(American Society of Limnology and Oceanography, 2011-07)
We performed outdoor experiments to evaluate the effect of temperature on photoinhibition properties in the cosmopolitan diatom Thalassiosira weissflogii. Cultures were exposed to solar radiation with or without ultraviolet ...
Comparación de los parámetros limnológicos y el zooplancton de un lago somero salino de La Pampa (Argentina) durante dos ciclos anuales de condiciones diferentes
(Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo. Instituto de Limnología "dr. R. A. Ringuelet", 2016-10)
In central Argentina the alternation of cycles of rainfall above or below thehistoric mean is frequent; so, many saline lakes can dry or fill in a short time. As in La Pampamost of the studies on these lakes were limited ...
Degradation of macroalgal detritus in shallow coastal Antarctic sediments
(American Society of Limnology and Oceanography, 2019-02)
Glaciers along the western Antarctic Peninsula are retreating at unprecedented rates, opening up sublittoral rocky substrate for colonization by marine organisms such as macroalgae. When macroalgae are physically detached ...
Environmental factors and benthic Oligochaeta (Annelida, Clitellata) assemblages in a stretch of the Upper São Francisco River (Minas Gerais State, Brazil)Fatores ambientais e associações de Oligochaeta (Annelida, Clitellata) em um trecho do Alto Rio São Francisco (Minas Gerais, Brasil)
(Instituto Internacional de Ecología, 2011-05)
The Oligochaeta forms an important part of the macroinvertebrates inhabiting sediments of lotic ecosystems. It has an important role in the cycling of matter and energy transfer in these environments. The aim of this study ...
Relationship between the zoo- and phytoplankton biomasses in a saline lowland river (Argentina): a short-time-scale analysis
(E Schweizerbartsche Verlags, 2014)