Results 51 to 60 of about 1,849,103 (186)

BIEN: A biodiversity informatics ecosystem advancing open and reproducible workflows for plant observation, plot and trait data

open access: yesMethods in Ecology and Evolution, Volume 17, Issue 5, Page 1556-1584, May 2026.
Abstract The rapid expansion of biodiversity data presents new opportunities to understand and forecast biosphere dynamics. However, disparate and dispersed data, taxonomic and geographic inconsistencies, pervasive quality issues, and a lack of reproducable workflows hinder synthesis, introduce biases and limit accurate assessment of biodiversity ...
Brian J. Enquist   +38 more
wiley   +1 more source

Análisis de las tareas asociadas a la proporcionalidad geométrica y la semejanza, presentes en libros de texto de matemáticas [PDF]

open access: yes, 2012
El presente trabajo de grado presenta un análisis de un conjunto de tareas, a través de las cuales se hace un tratamiento de la proporcionalidad geométrica y la semejanza, en una colección de libros de textos escolares de matemáticas.
Molavoque, María Judith   +1 more
core   +1 more source

fastbioclim: An R package for creating custom‐time bioclimatic and derived environmental summary variables

open access: yesMethods in Ecology and Evolution, Volume 17, Issue 5, Page 1585-1594, May 2026.
Abstract Bioclimatic variables, widely used in ecological and biogeographical studies, are typically derived from 30‐year averages of monthly data (e.g. 1971–2000). Unfortunately, the use of these long‐term averaged variables often creates a temporal mismatch with the observational data collected, which potentially undermines how environmental ...
Gonzalo E. Pinilla‐Buitrago   +1 more
wiley   +1 more source

¿Es coherente España con el desarrollo de Senegal? [PDF]

open access: yes, 2007
El objetivo de este estudio es el de proponer una serie de recomendaciones para el logro de una mayor coherencia del conjunto de las políticas españolas, de signo económico, con el desarrollo económico y social de Senegal. Con este primer estudio de caso
Olivié Aldasoro, LLiana
core  

Morphological, Molecular, and Isotopic Approaches to Termite Ecology: A Mangrove Case Study

open access: yesBiotropica, Volume 58, Issue 3, May 2026.
Termite communities in Caribbean mangroves, though species‐poor, sustain crucial decomposition and nutrient cycling. Their overlapping niches and stochastic assembly highlight termites' resilience and ecological importance in supporting the functioning of these challenging coastal ecosystems.
Robin Casalla, Rafik Neme, Judith Korb
wiley   +1 more source

Community‐level effects of Müllerian mimicry on pollinator diversity and functioning

open access: yesFunctional Ecology, Volume 40, Issue 3, Page 599-610, March 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Müllerian mimicry, a mutualistic interaction in which harmful species evolve similar warning signals, is often accompanied by niche divergence among mimetic species. While these aspects have traditionally been studied in an evolutionary context, their community‐level ...
Paola Laiolo, José Ramón Obeso
wiley   +1 more source

Herramientas de análisis temporal para el desarrollo de sistemas de tiempo real críticos. [PDF]

open access: yes, 2010
El presente documento describe la integración de herramientas para el análisis temporal en el conjunto de herramientas ASSERT. El proceso de desarrollo, el conjunto de herramientas y la máquina virtual de ASSERT se orientan al desarrollo de sistemas ...
Asensio, Esteban   +3 more
core  

A multiscale seasonal examination of the risk of harm to seabirds from vessels based on co‐occurrence in Alaskan waters

open access: yesConservation Biology, Volume 40, Issue 1, February 2026.
Abstract Alaska's seascape supports globally significant seabird populations, including vulnerable and threatened species, and hosts economically important commercial fisheries and marine transportation corridors. Seasonal patterns of seabird movements and vessel traffic create a complex landscape of risk, defined as high levels of co‐occurrence ...
Kelly Kapsar   +2 more
wiley   +1 more source

Hugo Chávez: una década en el poder [PDF]

open access: yes, 2015
Una década de Hugo Chávez Frías y su proyecto político en Venezuela trajo consigo un cambio de paradigmas que llama la atención de la sociedad en general.
Alvarado Chacín, Neritza   +46 more
core  

Importancia del país de origen en la compra de la carne bovina en Chile

open access: yesRevista Científica, 2010
Considerando el aumento de las importaciones de carne bovina en Chile, se evaluó la existencia de diferentes segmentos de consumidores según la importancia relativa del origen en la compra de la carne bovina, aceptación y disposición a pagar por carne de
Berta Schnettler   +3 more
doaj  

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