Results 41 to 50 of about 1,665 (114)

Habitat Suitability for a Unique, Fully Marine American Manatee (Trichechus manatus) Population Primarily Depends on Presence of Submarine Freshwater Springs

open access: yesMarine Mammal Science, Volume 42, Issue 3, July 2026.
ABSTRACT The American manatee (Trichechus manatus) requires freshwater mainly from rivers and springs to maintain osmoregulatory balance in saline environments. However, in Brazil's semi‐arid Potiguar Basin, manatees now rely solely on submarine freshwater springs because hypersaline estuaries have become unsuitable sources of freshwater.
A. C. O. Meirelles   +7 more
wiley   +1 more source

DIAGNÓSTICO DE LOS AGROECOSISTEMAS EN UN EJIDO DE LA PLANICIE COSTERA VERACRUZANA

open access: yesEcosistemas y Recursos Agropecuarios, 2014
Para obtener el articulo completo pueden contactar al editor de la revista Ecosistemas y Recursos Agropecuarios en el siguiente correo era@ujat.mx y se les enviará sin ningun costo.
Carlos Bouchot Carranco   +2 more
doaj   +1 more source

The scaling of seed‐dispersal specialization in interaction networks across levels of organization

open access: yesEcography, Volume 2026, Issue 5, May 2026.
Natural ecosystems are characterized by a specialization pattern where few species are common while many others are rare. In ecological networks involving biotic interactions, specialization operates as a continuum at individual, species, and community levels. Theory predicts that ecological and evolutionary factors can primarily explain specialization.
Gabriel M. Moulatlet   +3 more
wiley   +1 more source

Consideraciones críticas acerca de la formación por competencias en las universidades colombianas

open access: yesTeuken Bidikay, Revista Latinoamericana de Investigación en Organizaciones Ambiente y Sociedad, 2010
Este ensayo tiene como objeto presentar una posición crítica del papel que juegan las universidades en la implementación del modelo de formación por competencias, expresión de las nuevas formas del trabajo y de las relaciones sociales en la economía ...
Pedro Nel Valbuena Hernández   +1 more
doaj  

Fish loss in tropical coastal ecosystems can jeopardise nutrient supply to traditional fishing communities: A case study from Northeast Brazil

open access: yesPeople and Nature, Volume 8, Issue 5, Page 1248-1260, May 2026.
Abstract Fisheries constitute one of the major benefits that oceans provide for people. Yet anthropogenic pressures and global changes are disrupting coastal systems, eroding marine biodiversity and threatening the food security of traditional populations.
Fabricio C. Albuquerque   +4 more
wiley   +1 more source

Disentangling conservation asymmetries through socio‐economic transboundary factors across the Alto Paraná Atlantic Forest of South America

open access: yesPeople and Nature, Volume 8, Issue 5, Page 1328-1348, May 2026.
Abstract Ecoregions are often defined based on homogeneous biophysical and ecological conditions and are optimal spatial units for designing conservation strategies. However, transboundary ecoregions such as the Alto Paraná Atlantic Forest (APAF) experience asymmetrical conservation outcomes, understood here as cross‐border differences, resulting from ...
Lía Montti   +16 more
wiley   +1 more source

Correctable or not? The case of plant epithets derived from the Elbrus/Elburs Mountains in Iran, with further notes on taxonomic grey literature

open access: yesTAXON, Volume 75, Issue 2, April 2026.
Abstract Plant name epithets (as well as names of other organisms governed by the ICN), which are derived from geographic names, are not correctable when their original spelling was intentional and based on contemporary linguistic realities, even if it is currently considered outdated.
Alexander N. Sennikov, Irina V. Belyaeva
wiley   +1 more source

Anaplasma sp., ehrlichia sp., and rickettsia sp. in ticks: a high risk for public health in ibagué, colombia [PDF]

open access: yesKafkas Universitesi Veteriner Fakültesi Dergisi, 2018
The Order Rickettsiales comprises intracellular bacteria, including Rickettsiaceae and Anaplasmataceae; members of these families cause zoonotic diseases transmitted by ticks.
Mónica OSORIO   +3 more
doaj   +1 more source

Phylogeny of subtribe Gonolobinae (Apocynaceae‐Asclepiadoideae) based on molecular and morphological data with a revised generic classification

open access: yesTAXON, Volume 75, Issue 2, April 2026.
Abstract The presently most densely sampled molecular phylogeny of the widespread New World subtribe Gonolobinae is presented, including about 35% of the ca. 520 species. Sampling focused on an even representation of the three main areas of total Gonolobinae distribution, South America, Central/North America, and the West Indian Islands, and the ...
Sigrid Liede‐Schumann   +4 more
wiley   +1 more source

Sobre los procesos de enseñanza-aprendizaje en el legado de los cantos de trabajo del llano, patrimonio cultural inmaterial de la Orinoquia

open access: yesCultura, Lenguaje y Representación, 2019
Este artículo presenta un estudio sobre el proceso de enseñanza-aprendizaje de los cantos de trabajo del llano de la Orinoquia colombo-venezolana, declarados en 2014 Patrimonio Cultural Inmaterial por el Ministerio de Cultura de Colombia y en 2017 ...
Hernán Rivera Salcedo   +1 more
doaj  

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