Results 71 to 80 of about 945,638 (206)

Salamander loss alters montane stream ecosystem functioning and structure through top‐down effects

open access: yesAnimal Conservation, Volume 27, Issue 5, Page 722-735, October 2024.
Salamanders are seriously declining worldwide and, despite being important predators in both aquatic and terrestrial environments, their effects on freshwater ecosystems are virtually unknown. We demonstrated that salamander loss could alter montane stream ecosystem functioning and structure by reducing periphyton accrual, altering algal communities ...
A. Alonso   +4 more
wiley   +1 more source

Cultura organizacional y evaluación del desempeño del personal académico. Estudio de caso en una institución de educación superior pública mexicana

open access: yesNova Scientia, 2014
La investigación tiene como objetivo  realizar el diagnóstico de cultura organizacional de una Institución de Educación Superior Pública, para identificar los elementos culturales que  facilitan o dificultan el proceso de evaluación del desempeño del ...
Irasema Linares Medina   +2 more
doaj   +1 more source

An assessment of potential interventions to reduce the totoaba illegal trade market

open access: yesConservation Biology, Volume 38, Issue 5, October 2024.
Abstract The illegal trade in totoaba (Totoaba macdonaldi) is causing adverse social, ecological, and economic impacts. This illegal activity is accelerating the overexploitation of totoaba and pushing the critically endangered vaquita (Phocoena sinus) closer to extinction.
Rodrigo Oyanedel   +3 more
wiley   +1 more source

Análisis dogmático del derecho penal ambiental chileno, a la luz del derecho comparado y las obligaciones contraídas por Chile en el ámbito del derecho internacional. Conclusiones y propuesta legislativa [PDF]

open access: yes, 2003
Indexación: ScieloEl presente artículo corresponde al Informe Final del Proyecto FONDECYT 1010206­2001, sobre tratamiento penal de los delitos contra el medio ambiente en Chile.
Castillo Sánchez, Marcelo   +3 more
core  

Influencia del medio ambiente en evaluación de stock: una aproximación con modelos globales de producción

open access: yes, 1995
Conventional global production models are not suitable for certain stocks, because fishing effort variations explain only a part of the total variability of annual catches.
Pierre Fréon, R. Yáñez
semanticscholar   +1 more source

Geography and ecology shape the phylogenetic composition of Amazonian tree communities

open access: yesJournal of Biogeography, Volume 51, Issue 7, Page 1163-1184, July 2024.
Abstract Aim Amazonia hosts more tree species from numerous evolutionary lineages, both young and ancient, than any other biogeographic region. Previous studies have shown that tree lineages colonized multiple edaphic environments and dispersed widely across Amazonia, leading to a hypothesis, which we test, that lineages should not be strongly ...
Bruno Garcia Luize   +216 more
wiley   +1 more source

Estudios de procesos hidroambientales en una zona de llanura de la provincia de Buenos Aires [PDF]

open access: yes, 2017
El Instituto de Hidrología de Llanuras (IHLLA) tiene amplia trayectoria en hidrología subterránea y superficial, medio ambiente, calidad del agua y teledetección.
Briceño, Ninoska   +9 more
core  

Diving behaviour of the critically endangered tope shark Galeorhinus galeus in the Natural Reserve of Bahia San Blas, northern Patagonia [PDF]

open access: yes, 2014
Background:Tope sharks (Galeorhinus galeus) aggregate in large numbers during spring and summer in closedgulfs and bays in northern Patagonia; these locations are considered the main nursery areas for the species.However, little is known about the ...
Cuevas, Juan Martín   +2 more
core   +2 more sources

TÉCNICAS Y PROCEDIMIENTOS APLICABLES A LA AUDITORÍA DEL MEDIO AMBIENTE

open access: yes, 2014
La presente investigacion cientifica denominada TECNICAS y PROCEDIMIENTOS DE AUDITORIA MEDIOAMBIENTAL constituye el complemento de la investigacion efectuada anteriormente denominada AUDITORIA DEL MEDIO AMBIENTE, ya que, sin las tecnicas y procedimientos
C. Pereda
semanticscholar   +1 more source

Report on the establishment of the safe shelf life of certain ready‐to‐eat foods, sliced and prepacked in retail, in relation to the risk of Listeria monocytogenes

open access: yesFood Risk Assess Europe, Volume 2, Issue 3, July 2024.
Abstract The Barcelona Public Health Agency (ASPB) asked the Scientific Advisory Committee on Food Safety for an opinion on the safe shelf life of Listeria monocytogenes in certain products (cheeses, cooked meats, including pâtés, and cured meats) sliced and prepackaged prior to retail sale.
Sara Bover Cid   +6 more
wiley   +1 more source

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