Results 21 to 30 of about 44,251 (179)

A new South American darter (Crenuchidae: Characidium) from rivers draining the Northeastern Mata Atlantica Freshwater Ecoregion, Brazil: morphological and molecular evidence

open access: yesJournal of Fish Biology, EarlyView.
Abstract Characidium tupi, a new species from rivers draining the southern portion of the Northeastern Mata Atlantica Freshwater Ecoregion, is described. The new species can be distinguished from all congeners by its colour pattern, including 7–14 dark bars enlarged and more conspicuous on their ventralmost portion, resulting in a longitudinal series ...
Angela M. Zanata   +1 more
wiley   +1 more source

Un askós ibicenco en Galicia: Notas sobre el carácter del comercio púnico en el noroeste ibérico [PDF]

open access: yes, 2004
La reciente revisión de los materiales prerromanos del castro costero de A Lanzada (Pontevedra) ha permitido el descubrimiento, entre otras importaciones mediterráneas, de un askós púnico de Ibiza datable a fines del siglo III a.C. A la luz del hallazgo,
González Ruibal, Alfredo
core   +1 more source

Bipolar flaking as a component of a supraregional lithic resource base: A comparative study of cores from the Pampean and Northcentral Patagonian Atlantic coasts (Argentina) [PDF]

open access: yes, 2018
Several authors argue that bipolar technology is an expeditious and versatile strategy, efficient for the reduction of small nodules. However, few studies analyze the use of bipolar reduction in relation to the lithic environmental supply. At the Pampean
Banegas, Anahi   +2 more
core   +1 more source

Cronología y dieta en la costa atlántica pampeana, Argentina [PDF]

open access: yes, 2013
El objetivo de este artículo es evaluar el grado de aprovechamiento de los recursos marinos a lo largo de la historia ocupacional de la región pampeana.
Bonomo, Mariano   +2 more
core   +1 more source

A new catfish species of Microcambeva Costa & Bockmann, 1994 (Siluriformes: Trichomycteridae) from southern Brazil, with a redescription of M. ribeirae Costa, Lima & Bizerril, 2004

open access: yesJournal of Fish Biology, EarlyView.
Abstract Among the few species of Microcambeva reported as occurring in more than one hydrographic basin, M. ribeirae has been previously listed from both the Ribeira de Iguape and the Guaraqueçaba basins. However, morphological and molecular analyses revealed that the specimens from Guaraqueçaba represent a new species, which is described in this ...
Lucas S. de Medeiros   +6 more
wiley   +1 more source

Host–Parasite Interaction Networks of Helminths of Sigmodontine Rodents in Two Different Areas of the Brazilian Atlantic Forest

open access: yesEcological Research, Volume 41, Issue 3, May 2026.
Two helminth‐rodent networks were analyzed for two distinct areas. Network modularity, nestedness, and degree of specialization were calculated for each network. Higher network modularity than nestedness and high network specialization were observed in both networks, suggesting functional and/or taxonomic specialization between helminth species and ...
Thiago dos Santos Cardoso   +7 more
wiley   +1 more source

Biografía de la Costa Caribe de Nicaragua (1990 – 2002)

open access: yesWani, 2014
Esta es una importante bibliografía que recoge las publicaciones que 17 organismos e Instituciones han hecho sobre el Caribe nicaragüense durante el periodo 1990-2002.
Lydia Calero   +2 more
doaj  

Efecto de la minería de dunas en la población de Ctenomys, Madariaga [PDF]

open access: yes, 2016
La minería de arenas derivadas de dunas de la costa atlántica es una de las principales actividades que proveen de áridos para la construcción. Esta genera cambios significativos en el medio ambiente.
Taverna, Bernardo Daniel
core  

Lessons from an eradication under multiple constraints of an island rat population of record density

open access: yesConservation Biology, Volume 40, Issue 2, April 2026.
Abstract Invasive rats threaten island biodiversity, disrupting ecosystems and endangering native species. Although rat eradication has succeeded on many islands, tropical islands present unique management challenges. Strict regulations and financial constraints on some tropical islands further limit proven eradication methods, complicating rodent ...
Tatiane Micheletti   +7 more
wiley   +1 more source

La agroforestería una solución para el campesinado de la RAAS

open access: yesWani, 2014
Lo roza y quema, método tradicional de preparación de tierras para el cultivo, es uno de los principales factores de deforestación en la Región Autónoma del Atlántico Sur (RAAS).
Arthur Van Leeuwen   +2 more
doaj  

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