Results 51 to 60 of about 47,360 (169)

Heavy Metal Contamination in Arenillas Ecological Reserve Soils: Correlation and Conservation Impact

Land Degradation &Development, Volume 36, Issue 10, Page 3454-3471, June 2025.
ABSTRACT This study addresses the critical knowledge gap regarding heavy metal contamination in the soils of the Arenillas Ecological Reserve (AERv), located on the southwest coast of Ecuador. Despite being a fragile and highly biodiverse ecosystem, little is known about the magnitude, spatial distribution, and drivers of heavy metal contamination in ...
Vinicio Carrión‐Paladines, James Calva, Teddy Ochoa‐Pérez, Leslye Ruiz, Fausto López‐Rodríguez   +4 more
wiley   +1 more source

El Spondylus en el Perú prehispánico. Su significación religiosa y económica [PDF]

, 2005
Con este trabajo pretendemos dar unas breves pinceladas que sirvan como visión general del significado y ex tensión del Spondyl11s, molusco trop ical, en el mundo ceremonial and ino y del an tiguo Perú.
López Cuevas, Fernando
core  

Registro de Crypticerya genistae (Hempel) (Hemiptera : Monophlebidae) en Tumbes, Perú

Manglar
Crypticerya Cockerell, 1895 is a genus of Coccomorpha, its distribution occurs mainly in the New World including numerous pest species. The common name "channeled mealybugs" is due to the fact that the ovisacs, in the species that produce them, have ...
P. Castillo-Carrillo, Walter Ciro Díaz Burga, Rosa Emelda Cornejo Hidalgo   +2 more
semanticscholar   +1 more source

Impacts of COVID‐19 on Venezuelan migrants in the Andean corridor

International Migration, Volume 63, Issue 3, June 2025.
Abstract Since 2015, about 7.9 million Venezuelans left their country due to political turmoil, socio‐economic instability, and the ongoing humanitarian crisis. The Andean Corridor is the most frequented land route in South America. This article explores Venezuelan migrants' experiences with the COVID‐19 pandemic on their journeys.
Julia Kieslinger
wiley   +1 more source

Irregularized Transits to the South: A Social Force in the Cross‐Border Spatial Dispute in South America

The Journal of Latin American and Caribbean Anthropology, Volume 30, Issue 2, June 2025.
ABSTRACT This article examines Venezuelan irregularized transits in South America, focusing on the dynamics of mobility and control that shape the southern corridor—a transnational space linking the Andean Region (Venezuela, Colombia, Ecuador, Peru, and Bolivia) to the Southern Cone, particularly Chile.
Soledad Álvarez Velasco, Nanette Liberona Concha   +1 more
wiley   +1 more source

A Bibliography of Archaeology, Pleistocene Geology, and Ecology of the Departments of Piura and Tumbes, Peru

Latin American Research Review, 1977
Two factors have been instrumental in drawing scientists and scholars to northwestern Peru: oil resources and the climatic phenomena known as El Niño.
James B. Richardson
semanticscholar   +1 more source

Fiddler Crabs (Crustacea: Decapoda: Ocypodidae) From Coastal Ecuador and the Galápagos Islands: Species Descriptions and DNA Barcodes

Ecology and Evolution, Volume 15, Issue 1, January 2025.
Twenty‐five taxa were collected during the surveys, while two more were noted from the literature and museum collections; five are new to Ecuador. DNA sequences for cytochrome c oxidase–subunit 1 were obtained for 27 operational taxonomic units with three morphologically indistinguishable cryptic or pseudo‐cryptic taxa were also revealed.
Carl L. Thurman, John C. McNamara, Hsi‐Te Shih, Mariana V. Capparelli   +3 more
wiley   +1 more source

Acacia Horrida (L.) Willd.: refugio de artrópodos benéficos en la costa peruana [PDF]

, 2016
El huarango (Acacia horrida (L.) Willd., 1806) es una leguminosa arbustiva utilizada como cerco vivo en áreas agrícolas para prevenir la erosión, mejorar la nutrición del suelo y servir, además, como refugio para artrópodos benéficos, contribuyendo así a
Altamirano, Jessica J., Beyer, Alfredo A., Collantes, Rubén D., Perla, Diego R., Rodríguez, Alexander R.   +4 more
core   +1 more source

Reproductive Biology and Gross Biochemical Composition of Larkinia grandis (Bivalvia: Arcidae) in the Northwestern of the Mexican Pacific

International Journal of Zoology, Volume 2025, Issue 1, 2025.
The reproductive cycle of Larkinia grandis (Broderip and G.B. Sowerby I, 1829) from the NW Mexican Pacific was analyzed in relation to environmental variables, condition index (CI), and biochemical composition of different tissues. A total of 960 clams (80/month; 44.5–142.0 mm, shell height) were collected from the El Cohui estuary in the Navachiste ...
Maria Isabel Sotelo-Gonzalez, Carlos Humberto Sepúlveda, Rebeca Sánchez-Cárdenas, Luis Antonio Salcido-Guevara, Juan Francisco Arzola-González, Andrés Martín Góngora-Gómez, Juan Antonio Hernández-Sepúlveda, Manuel García-Ulloa, Laxman Khanal   +8 more
wiley   +1 more source

Apoyo a la integración urbana y regional de la zona fronteriza del Eje Vial N° 1 Piura – Guayaquil: una aproximación desde una perspectiva binacional y sostenible

Espacio y Desarrollo, 2011
Support for urban and regional integration of the frontier zone of the Axis Road N° 1 Piura – Guayaquil: an aproach from a binational and sustainable perspective The objective of this paper is to show a concrete experience of territorial management of ...
Rodolfo Castillo García
doaj