Results 11 to 20 of about 13,590 (167)

Análisis multivariado sobre datos morfométricos de 40 lagunas cálidas del estado de Tabasco, México

Ecosistemas y Recursos Agropecuarios, 2014
Se describe un inventario general de los recursos lénticos del Estado de Tabasco, México. Para obtener el articulo completo pueden contactar al Editor de la Revista Ecosistemas y Recursos Agropecuarios en el siguiente correo electrónico era@ujat.mx y ...
Ernesto Rodríguez Rodríguez, Mario Alfredo Benítez Mandujano   +1 more
doaj   +1 more source

EFECTO DE LA ESTACIONALIDAD SOBRE EL ENSAMBLE DEL MACROBENTOS EN UN RÍO ALTOANDINO

Acta Biológica Colombiana, 2023
El estudio del funcionamiento de los ecosistemas altoandinos es de gran importancia pues cualquier modificación influirá en toda la cuenca; sin embargo, el conocimiento de estos ambientes aún es limitado.
Lourdes Figueroa Eche, José Antonio Arenas Ibarra   +1 more
doaj   +1 more source

Hyphessobrycon nicolasi (Teleostei: Characidae) a new species from the Uruguay River basin in the Mesopotamian Region, Argentina [PDF]

, 2010
Hyphessobrycon nicolasi is described from the Uruguay River basin in the Mesopotamian Region, Entre Ríos, Argentina. The new species can be distinguished from all congeners by the presence of a well-defined oblique and marginal black stripe on each lobe ...
Lopez, Hugo Luis, Miquelarena, Amalia Maria   +1 more
core   +3 more sources

Feeding spectra and activity of the freshwater crab Trichodactylus kensleyi (Decapoda: Brachyura: Trichodactylidae) at La Plata basin [PDF]

, 2014
Background: In inland water systems, it is important to characterize the trophic links in order to identify the ‘trophic species’ and, from the studies of functional diversity, understand the dynamics of matter and energy in these environments.
A Ruttner-Kolisko, AA Bonetto, AH Beltzer, AH Beltzer, AH Beltzer, B Hepher, BL Zimmermann, C Magalhães, C Sokolowicz, CE Cushing, CG Vélez, CP Balasubramanian, CS Pontes, DA Carvalho, DA Carvalho, DA Carvalho, E Massoia, EC Lopretto, ED Burress, F Fernandez de Miguel, FL Zilli, FLM Mantelatto, FLM Mantelatto, G Mancinelli, G Woodward, GAS Melo, H Aréchiga, HJ Dumont, I Ezcurra de Drago, I Nordhaus, II César, IJ McGaw, J Aguzzi, J Freire, J Josileen, JD Icely, JG Irons, JH Zar, JJ Bianchini, JJ Neiff, K Cheshire, KD Colpo, L Pinkas, LA López, M Devercelli, M Dobson, M Zimmer, MG Frick, N Kronfeld-Schor, N Lo, N Myers, P Kratina, PA Collins, PA Collins, PA Collins, PA Collins, R Pirela, RC Lajmanovich, RG Wear, RK Colwell, S Cannicci, S Daan, SM Linton, SM Linton, SP Hart, V Williner, V Williner, V Williner, WF Edmonson, WJ Mattson, ZT Long   +70 more
core   +1 more source

Dinámica espacial y temporal de los nutrientes en los primeros años de llenado de un embalse mediterráneo

Ingeniería del Agua, 2023
Se ha estudiado la evolución espacio-temporal de variables limnológicas clásicas en un embalse mediterráneo: Rules, en la provincia de Granada, tras su inauguración. La dinámica de los nutrientes y de la clorofila-a está fuertemente condicionada por: (i)
Inmaculada de Vicente, Luis Cruz-Pizarro, Victoria Amores Antequera, Enrique Moreno Ostos, Rafael Morales Baquero   +4 more
doaj   +1 more source

Benthic diatoms and some environmental conditions in three lowland streams [PDF]

, 2002
This article reports on the ecological preferences of benthic diatoms in relation to pH, conductivity and organic pollution-eutrophication and their tolerance spectrums. Three Pampean streams subjected to different human impacts were studied.
Gomez, Nora, Licursi, Magdalena
core   +2 more sources

Spiroxys contortus (Rudolphi, 1819) and Hedruris orestiae (Moniez, 1889) in Argentine turtles [PDF]

, 2016
Knowledge of parasites in turtles is scarce,particularly with regard to freshwater turtles of SouthAmerica. Here, we describe the association of Spiroxyscontortus (Rudolphi, 1819) in Phrynops hilarii (Duméril& Bibron, 1835) and S.
Alcalde, Leandro, Capasso, Sofía Carolina, Cassano, María Julia, Diaz, Julia Inés, Palumbo, Ezequiel   +4 more
core   +3 more sources

Histopathological effects of cypermethrin and Bacillus thuringiensis var. israelensis on midgut of Chironomus calligraphus larvae (Diptera: Chironomidae) [PDF]

, 2018
Pesticides are extensively used for the control of agricultural pests and disease vectors, but they also affect non-target organisms. Cypermethrin (CYP) is a synthetic pyrethroid used worldwide. Otherwise, bioinsecticides like Bacillus thuringiensis var.
Arrighetti, Florencia, Lavarias, Sabrina Maria Luisa, Siri, Augusto   +2 more
core   +1 more source

Pathogenic fungus in feral populations of the invasive North American bullfrog in Argentina [PDF]

, 2017
Nearly a third (32.4%) of the world?s amphibian species are either threatened with extinction or already extinct (1). The chytrid fungus Batrachochytrium dendrobatidis (Bd) (Chytridiomycetes: Ryzophydiales) (2) has been recognized as responsible for mass
Ghirardi, Romina, Levy, Michael G., Lopez, Javier Alejandro, Quiroga, Lorena Beatriz, Sanabria, Eduardo Alfredo   +4 more
core   +1 more source

Assessment of Biotic Integrity of the Coastal Freshwater Tidal Zone of a Temperate Estuary of South America through Multiple Indicators [PDF]

, 2012
Fil: Gómez, Nora. Instituto de Limnología Dr. Raúl A. Ringuelet (ILPLA). Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; ArgentinaFil: Licursi, Magdalena. Instituto de Limnología Dr. Raúl A. Ringuelet (ILPLA).
Ambrosio, Eugenia Soledad, Bauer, Delia Elena, Gómez, Nora, Licursi, Magdalena, Rodrigues Capítulo, Alberto   +4 more
core   +1 more source