Results 21 to 30 of about 363 (130)
AIA Avances en Investigación Agropecuaria, 2004 Se examinaron tres dietas para reproductores de los langostinos Macrobrachium rosenbergii y M. tenellum para evaluar algunos parámetros morfométricos en la calidad de los huevecillos.
M. García-Ulloa +2 more
doaj
AquaTechnicaLa reproducción demanda mucha energía en el ciclo de vida los bivalvos y el acondicionamiento de los reproductores afecta la viabilidad de los gametos y el posterior desarrollo embrionario y larvario.
Estefanía S. Oña Pérez +4 more
doaj +1 more source
Conservation Biology, Volume 40, Issue 1, February 2026.Abstract Spatial segregation in at‐sea distribution is frequently observed in seabirds and can have important implications for conservation and management. Globally, many albatross and petrel populations are declining due to bycatch in fisheries. In South Georgia, the decrease in wandering albatrosses (Diomedea exulans) differs among breeding sites ...
V. Warwick‐Evans +3 more
wiley +1 more source
Biología Acuática, 2019 The aim of this work was the obtainment of Odontesthes bonariensis eggs from broodstocks reared in captivity since them hatched. The experiment took place from September 2005 to April 2006 during this time fish were kept in two circular tanks of 20 m2 ...
Gustavo E. Berasain +3 more
doaj
Effects of nitrogen deposition on territory numbers of breeding birds
Conservation Biology, Volume 39, Issue 6, December 2025.Abstract Deposition of atmospheric N (nitrogen) is assumed to be a major cause of biodiversity decline in Europe. To date, few studies on the direct or indirect effects of N on bird species have been conducted. Using Swiss bird count data and habitat data, we analyzed the correlation of N deposition with numbers of territories of 112 breeding bird ...
Kim Meichtry‐Stier +3 more
wiley +1 more source
Almost Seven Decades of Coastal Bird Community Recovery Across Three European Seas
Global Change Biology, Volume 31, Issue 11, November 2025.Our study examined long‐term trends in coastal bird communities across three European seas from 1957 to 2024. We found that bird abundance and diversity have increased over time, although these improvements vary among regions and sites. Protected areas—particularly strictly protected ones—play an important role in supporting these recoveries, but ...
Carlos Cano‐Barbacil +10 more
wiley +1 more source
Instituciones, música, niños y jóvenes en orquestas sinfónicas y bandas musicales.
Runa, 2020 En éste trabajo exploramos como niños y jóvenes a través de su participación en bandas y orquestas musicales son reproductores de valores, instituciones e ideales tan grandes como la nación, la música mexicana, las casas de cultura, la familia. Ellos con
Martha Areli Ramirez Sanchez
doaj +1 more source
Molecular Ecology, Volume 34, Issue 22, November 2025.ABSTRACT Chemical communication during courtship is well documented in salamanders and newts, but its role in frogs is less understood. In some Neotropical poison frogs, males exhibit specialised mucous glands (SMGs) in the hand integument that express high levels of sodefrin precursor‐like factors (SPFs), an amphibian pheromone. Some species also show
Diana Abondano Almeida +4 more
wiley +1 more source
Revista Científica, 2012 La finalidad de esta investigación fue evaluar el efecto que ejerce la dieta sobre la calidad seminal de toros Brahman y los niveles séricos de proteínas totales, glucosa, colesterol y nitrógeno ureico, además de determinar su asociación con las ...
Clara Rugeles Pinto +5 more
doaj