Results 51 to 60 of about 1,704,999 (235)
Mammal Review, Volume 56, Issue 1, March 2026.Black bears as apex predators. American black bears can (1) produce top‐down effects on ungulates equal to or exceeding those of typical apex predators and (2) modify the spatiotemporal behaviour of other carnivores, including pumas and coyotes. We argue that the term ‘apex predator’ is highly context dependent and not a species‐wide status.
John M. Nettles +10 more
wiley +1 more source
Andean Geology, 2013 Un análisis morfométrico que considera la pendiente topográfica y la hipsometría, evidencia las diferencias longitudinales y latitudinales en el grado de madurez del relieve de la región andina entre los 27-32°S.
Germán Aguilar +3 more
doaj
The Depositional Record, Volume 12, Issue 1, February 2026.This study characterises carbonate mineral precipitation mechanisms and their paleoenvironmental implications in a semi‐arid, saline playa lake system. SEM image with EDS spectra shows microcrystalline, spherical shaped dolomite crystals from Laguna Fuente de Piedra composed of nanocrystals with bacterial voids and EPS.
Zeina Naim +5 more
wiley +1 more source
Contamination of surface waters by mining wastes in the Milluni Valley (Cordillera Real, Bolivia): Mineralogical and hydrological influences [PDF]
, 2008 This study is one of very few dealing with mining waste contamination in high altitude, tropical-latitude areas exploited during the last century. Geochemical, mineralogical and hydrological characterizations of potentially harmful elements (PHEs) in ...
Isaure, Marie-Pierre +3 more
core +3 more sources
Earth Surface Processes and Landforms, Volume 51, Issue 2, February 2026.We provide a geomorphological analysis of Cordillera Vilcanota and use morphostratigraphic principles to reconstruct palaeo icefield extent and palaeoglacier readvances, likely during the Antarctic Cold Reversal and Younger Dryas. We find evidence of temperate and polythermal ice margins, with limited glaciofluvial landform generation.
Bethan Davies +11 more
wiley +1 more source
Revision of Manettia (Rubiaceae) in Paraguay
Nordic Journal of Botany, Volume 2026, Issue 2, February 2026.Manettia Mutis is a Neotropical genus comprising over 100 species, many of which are only known from their original descriptions or, at most, from revisions dating back over 100 years. Recent review studies have remained unpublished for several years. Conventional taxonomic methods are followed.
Silvana Yasmin Gauto +2 more
wiley +1 more source
Estudios Geologicos, 1996 La aplicación del análisis de paleoesfuerzos a las mesoestructuras frágiles (fundamentalmente fallas y picos estilolíticos) del borde norte de la Cordillera Ibérica en el sector de Cariñena-Belchite ha dado como resultado la determinación de cuatro ...
A. L. Cortés Gracia, A. M. Casas Sainz
doaj +1 more source
Estudios Atacameños, 2021 El artículo muestra hallazgos etnográficos sobre la fiebre del oro e incorporación de pirquineros croatas y chilotes en las inmediaciones del cordón Baquedano de Porvenir, Tierra del Fuego, Chile.
Juan Manuel Saldivar Arellano
doaj +1 more source
Cadenas andinas y cadenas alpinas: observaciones sobre la geología de la Cordillera de los Andes en el paralelo de la Argentina central [PDF]
, 1966 Los autores han viajado por los Andes (1965) y los Alpes (1966) a fin de tener una idea conjunta de Índole geotectónica que permita brindar los resultados de una comparación reciente sobre la organización y desarrollo de ambas
Aubouin, Jean, Borrello, Ángel V.
core
Psychotria caraballoensis (Rubiaceae), a new species from northern Luzon, Philippines
Nordic Journal of Botany, Volume 2026, Issue 2, February 2026.In this paper, we describe and illustrate Psychotria caraballoensis, a new endemic species from the Caraballo Mountain Range, Luzon, Philippines. It is allied to the Subalpina species group sensu Sohmer and Davis (2007), and resembles Psychotria sohotonensis.
Jenifer D. Pajarillaga +4 more
wiley +1 more source