Results 41 to 50 of about 949 (173)

The Biogeography of ENSO‐Induced Climate Variability, Deforestation Trends and Fire‐Induced Forest Loss in the Neotropics

open access: yesJournal of Biogeography, Volume 53, Issue 4, April 2026.
ABSTRACT Aim To identify Neotropical ecoregions experiencing compound environmental exposure to El Niño/La Niña‐driven climate variability, deforestation trends and fire‐induced forest loss. Location Neotropical realm. Methods We quantified historical exposure to ENSO‐related climate variability by correlating the Oceanic Niño Index with four ...
Andres González‐González   +3 more
wiley   +1 more source

A taxonomic update of the genus Clavija (Theophrastaceae) in Colombia and Ecuador

open access: yesNordic Journal of Botany, Volume 2026, Issue 3, March 2026.
Two species of Clavija are described as new to science: C. neivea (Department Huila Colombia), which is similar to C. pungens (Willd. ex Roem. & Schult.) Decne. of coastal Ecuador, but distinguished by its chiefly elliptic leaf blades with less serrate margins and 4‐merous flowers; C. zamorae (Prov.
Bertil Ståhl
wiley   +1 more source

New Insights into the Early Diversification of the Ostracoda: Tremadocian Ostracods from the Cordillera Oriental, Argentina [PDF]

open access: yesActa Palaeontologica Polonica, 2012
New species of ostracods from the Tremadocian in the northwest region of Argentina are described. These are among the earliest well-documented records of ostracods, which shed new light onto the early diversification of the group. The described fauna consists of seven species, five of which are new: Saltite uchuy sp. nov., Saltite kuraq sp.
Salas, Maria Jose   +1 more
openaire   +2 more sources

Estudios en Asteraceae de Colombia: primer registro del género Tragopogon L.

open access: yesBiota Colombiana, 2016
Como resultado de exploraciones recientes en la cordillera Oriental andina de Colombia, se registra por primera para el país a Tragopogon porrifolius L. (Asteraceae: Cichorieae).
Diego Giraldo-Cañas   +2 more
doaj   +3 more sources

Amphibia, Anura, Eleutherodactylidae, Diasporus anthrax (Lynch, 2001): New records and geographic distribution [PDF]

open access: yesCheck List, 2012
During fieldwork in the Departamentos of Antioquia and Santander we found several specimens of Diasporus anthrax. The new records extend northward its known geographic distribution. We report, for the first time, the presence of D.
Felipe Duarte-Cubides, Nayibe Cala-Rosas
doaj   +3 more sources

Palaeoglacier reconstruction and dynamics of Cordillera Vilcanota in the tropical high Peruvian Andes

open access: yesEarth 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

Especies nuevas del género Berberis-IV Especies nuevas del género Berberis-IV

open access: yesCaldasia, 1991
Three species of Berberis from eastern Colombian Cordillera are described and  ilustrated as new taxa.
Camargo G. Luis Alfredo
doaj  

El género Cryptocanthon (Coleoptera: Scarabaeidae) en Colombia: descripción de especies nuevas, distribución geográfica y conservación

open access: yesRevista Mexicana de Biodiversidad, 2020
Se describen 3 especies nuevas de escarabajos del género Cryptocanthon Balthasar de los Andes colombianos: C. encenillensis sp. nov. y C. cephalopunctatus sp. nov. de la cordillera oriental, y C. mailinae sp. nov. de la cordillera occidental. Se proveen
Diego Esteban Martínez Revelo   +2 more
doaj   +1 more source

Strong Variation in Land‐Use Change Impacts on Tropical Avian Phylogenetic Diversity Between Ecoregions Highlights the Need to Sample Large Spatial Scales

open access: yesGlobal Change Biology, Volume 32, Issue 1, January 2026.
Forest conversion for agriculture is a major cause of biodiversity loss in the tropics, but its impacts depend on how broadly they are measured. Using data from across Colombia, one of the most biodiverse countries in the world, we examined how deforestation for cattle farming affects the evolutionary history of bird species.
Giovanny Pérez   +7 more
wiley   +1 more source

Roberto Caminos (1931-1997) un geólogo regional con base petrológica: desde macro- a microescala

open access: yesRevista del Museo de La Plata, 2016
Roberto Caminos (1931-1997), recibido en la Universidad de Buenos Aires, fue un notable geólogo regional. Su sólida base petrológica era apropiada para mapear terrenos ígneos y metamórficos.
Eduardo Llambías   +2 more
doaj   +1 more source

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