Results 31 to 40 of about 6,513 (184)
Assessing responses of reef island seabirds to environmental and anthropogenic drivers
Abstract Tropical insular ecosystems face escalating, cumulative impacts of land‐ and sea‐based ecological threats that jeopardize the long‐term sustainability of their native communities. This joint vulnerability is epitomized by reef island seabirds, which are exposed to reef decline and coastal erosion driven by climate change, reduction in prey ...
Tristan Berr +7 more
wiley +1 more source
Climatic change and anthropogenic disturbances are reshaping animal populations. Habitat loss and extreme climatic events are particularly strong drivers of declines in species that depend on forested areas. For migratory songbirds, climate and the persistence of suitable habitat over time are fundamental to sustaining populations annually.
Isabel Vargas‐Valverde +3 more
wiley +1 more source
Se estudió, durante el 2006, la abundancia del sistema forofito/orquídeas epífitas en el Parque Ecológico Universitario “José Mariano Mociño” de la Universidad Autónoma del Estado de México, durante la primera fase se realizó el análisis cuantitativo de ...
J. L. Morales-Hernández
doaj
Riesgos de la abundancia de liquidez
El país ha sido impactado históricamente por alteraciones en la dinámica regular del clima ante variaciones de la temperatura, una de cuyas formas inmanentes es la excesiva liquidez hídrica, como término derivado del origen etimológico de lo líquido (estado físico del agua) y la importancia de su magnitud.
openaire +1 more source
Elevation shapes alpine snow algal blooms and their influence on albedo reduction
Graphical summary of elevational trends in Sanguina‐dominated snow algal blooms. Increasing elevation was associated with larger cells, lower Chla content per cell, higher astaxanthin ratios, lower snow water content, and reduced cell‐normalized albedo, whereas algal cell density showed no consistent elevational trend.
Pablo Almela +5 more
wiley +1 more source
Evaluation of various conventional methods for sampling weeds in potato and spinach crops
This study aimed to evaluate (at an exploratory level), some of the different conventional sampling designs in a section of a potato crop and in a commercial crop of spinach.
David Jamaica, Guido Plaza
doaj +1 more source
We synthesized GPS telemetry, genetic, and pathogen data to evaluate metapopulation processes in a reintroduced Rocky Mountain bighorn sheep (Ovis canadensis canadensis) population in Dinosaur National Monument. We estimated subpopulation‐specific abundances and found 4 small subpopulations with high genetic diversity, partial connectivity, and ...
Sarah L. Carroll +8 more
wiley +1 more source
De la abundancia a la desesperación
Partiendo de posturas que vinculan este trabajo con la historia ecológica y ambiental actual, este artículo indaga sobre los imaginarios surgidos en relación a los recursos vegetales pampeanos, su preservación y restablecimiento en el interior argentino (Territorio Nacional de La Pampa) desde la denominada “Conquista al Desierto”, de finales del siglo ...
openaire +4 more sources
Composición, riqueza, diversidad y abundancia de aves en cuatro áreas verdes de Santo Domingo
Se presenta un análisis sobre la riqueza, diversidad y abundancia de aves en cuatro áreas verdes de la ciudad de Santo Domingo: Plaza de la Cultura Juan Pablo Duarte, Parque Mirador Sur, Jardín Botánico Nacional Dr. Rafael M.
Hodali Almonte-Espinosa
doaj +1 more source
Abstract Knowledge of species distributions is essential for informing policies on nature conservation and restoration. However, updating them on a regular basis and doing so in a harmonized manner at the international level is difficult. The European Bird Census Council integrated national monitoring data covering 5 years to update farmland bird ...
Sergi Herrando +54 more
wiley +1 more source

