Results 141 to 150 of about 309,027 (251)

Cultivo de la Quina [Cínchona] en Guatemala

open access: yesRevista Facultad Nacional de Agronomía Medellín, 1942
A mediados del siglo pasado, el rápido incremento que tomó la destrucción de los bosques de quina (Cínchona) de los Andes y el aumento del valor de la quinina para el tratamiento de la malaria, dió por resultado la introducción del cultivo de Cínchona en
Popenoe Wilson
doaj  

Prevalence of traded bird species in key biodiversity areas

open access: yesConservation Biology, Volume 40, Issue 5, October 2026.
Abstract The use and trade of biodiversity involve tens of thousands of species that are exploited at a range of scales, intensities, and degrees of sustainability. As a result, some are highly threatened. Key biodiversity areas (KBAs) are sites of significance for the persistence of biodiversity identified nationally based on standardized criteria ...
Oscar Morton   +4 more
wiley   +1 more source

Conocimiento de las comunidades de escarabajos que habitan el suelo en los Andes tropicales: Lagunas y tendencias

open access: yes
Los Andes tropicales son una de las ecorregiones más biodiversas de la Tierra, con altos niveles de endemismo de especies. Los Andes tropicales son también una de las ecorregiones más vulnerables del mundo debido a una larga historia de ...
Horgan, Finbarr G.   +5 more
core  

The link between colorfulness and extinction risk across the world's passerine birds

open access: yesConservation Biology, Volume 40, Issue 5, October 2026.
Abstract Many of the functional traits that mediate extinction risk across the range of biodiversity relate indirectly to a species’ ability to persist in a changing world, yet certain traits such as coloration directly affect human interactions with wildlife.
Montague H. C. Neate‐Clegg   +1 more
wiley   +1 more source

Underestimation of avian diversity in the Tumbesian hotspot: Sampling gaps and conservation challenges

open access: yesConservation Science and Practice, Volume 8, Issue 10, October 2026.
This study provides the first comprehensive reassessment of avian diversity in the Tumbesian region in over 30 years, documenting 931 species and identifying significant sampling gaps driven by geographic accessibility. We reveal a critical misalignment between biodiversity value and current protection coverage, particularly in humid forests which ...
Anabel Cueva‐Agila   +3 more
wiley   +1 more source

Environmental DNA succeeds in detecting a low‐density population of endangered harlequin frogs

open access: yesConservation Science and Practice, Volume 8, Issue 10, October 2026.
This work evaluates the use of environmental DNA (eDNA) to detect the Critically Endangered Jambato Harlequin Frog (Atelopus ignescens)—an iconic species once thought extinct and now known only from a single locality in the Ecuadorian Andes. Our study demonstrates the effectiveness of eDNA in detecting the Jambato in a low‐density amphibian population,
Mónica I. Páez‐Vacas   +14 more
wiley   +1 more source

CASO: Evaluación del Estado actual de la vegatación y recuperación de especies silvestres endémicas o amenazadas de la microcuenca Susuco

open access: yes, 2003
Este documento fue presentado en el Foro Manejo de Fertilidad de suelos en agroescosistemas de los andes ...

core  

Complementary Hotspots of Vegetation Diversity in Andean Patagonian Forests

open access: yesDiversity and Distributions, Volume 32, Issue 10, October 2026.
ABSTRACT Aim Examining spatial relationships among three vegetation diversity metrics—species richness (S), rarity‐weighted richness (RWR) and local contribution to beta diversity (LCBD) as a measure of compositional uniqueness and quantifying the spatial congruence of their hotspots to assess conservation value.
Natalia Z. Joelson   +2 more
wiley   +1 more source

Eco‐Evolutionary Feedback to a Pesticide Worsens the Impact of a Pesticide Switch in a Pivotal Freshwater Non‐Target Species

open access: yesEcology Letters, Volume 29, Issue 10, October 2026.
Selection under the insecticide chlorpyrifos strongly affected the genetic makeup of non‐target Daphnia magna populations and increased tolerance of chlorpyrifos‐selected populations to chlorpyrifos and malathion (same mode of action as chlorpyrifos) but reduced performance when exposed to deltamethrin (different mode of action from chlorpyrifos).
Rafaela A. Almeida   +6 more
wiley   +1 more source

Glaciares de los Andes tropicales : víctimas del cambio climático

open access: yes, 2013
Silvestre E.E. (dir.)   +17 more
openaire   +3 more sources

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