Results 21 to 30 of about 1,075 (159)

Spatial variation of pollen receipt and effects of heterospecific pollen on seed set in Salvia przewalskii

open access: yesEcology and Evolution, Volume 13, Issue 2, February 2023., 2023
We documented variations in HP receipt and evaluated its reproductive effects across geographic locations under natural conditions. The association of conspecific pollen with seed production was positive and variable among sites, whereas the association of HP receipt and seed production was negative and not significantly different among sites ...
Qiang Fang   +2 more
wiley   +1 more source

Integration of historic collections can shed light on patterns of change in plant–pollinator interactions and pollination service

open access: yesFunctional Ecology, Volume 37, Issue 2, Page 218-233, February 2023., 2023
Read the free Plain Language Summary for this article on the Journal blog. Abstract Mutualistic interactions between plants and animal pollinators are increasingly under threat through anthropogenic change, and it is critical to understand how temporal changes affect the structure and function of these ecologically important interactions.
Demetra Rakosy   +4 more
wiley   +1 more source

Plant species richness and sunlight exposure increase pollinator attraction to pollinator gardens

open access: yesEcosphere, Volume 13, Issue 12, December 2022., 2022
Abstract Evidence documenting the decline of insect populations is accumulating. Efforts have increased to mitigate pollinator losses by establishing gardens to support pollinator diversity. However, knowledge of the specific garden characteristics, landscape features, and environmental factors that affect pollinator diversity and abundance is limited,
Travis L. Watson   +2 more
wiley   +1 more source

Grafos destinados al Análisis de datos Multivariante Condicionado por su Estructura

open access: yesRevista de Matemática: Teoría y Aplicaciones, 2012
En este artículo se muestran dos nuevos métodos para la construcción de grafos que pueden utilizarse en combinación con las técnicas descriptivas de Análisis de Datos Multivariante: grafo basado en la distancia ji-cuadrado y grafo basado en las ...
Miguel Angel García Montoya   +2 more
doaj   +1 more source

An Edition of Ambrosio Nieto’s Paradise Lost: A Drama in Four Acts (c. 1920–50)

open access: yes, 2023
Milton Quarterly, Volume 57, Issue 3, Page 59-88, October 2023.
Angelica Duran
wiley   +1 more source

The Andalusian Tourism Sector during the Economic Crisis and its Impact on Regional Development.

open access: yesRevista de Estudios Andaluces, 2018
It is not common practice to assess tourism’s effects on regional development, although its benefits for host economies are widely known. This paper attempts to discern such activity’s role in a geographic setting by applying structural analysis ...
Ana María García-López   +3 more
doaj   +1 more source

La atención a la dependencia como motor de desarrollo económico

open access: yesRevista Internacional de Sociología, 2014
El envejecimiento de la población en la mayoría de los países desarrollados marca la necesidad de establecer políticas de actuación que garanticen la atención a dicha población.
Belén Díaz Díaz
doaj   +1 more source

Ventaja comparativa, dotaciones factoriales y comercio de las regiones españolas con la Unión Europea [PDF]

open access: yesInvestigaciones Regionales - Journal of Regional Research, 2006
Este trabajo analiza por primera vez el contenido factorial del comercio de las regiones españolas con la Unión Europea, usando las tablas Input-Output regionales disponibles.
Andrés Artal   +2 more
doaj   +2 more sources

The impacts of biological invasions

open access: yesBiological Reviews, Volume 101, Issue 3, Page 1255-1310, June 2026.
ABSTRACT The Anthropocene is characterised by a continuous human‐mediated reshuffling of the distributions of species globally. Both intentional and unintentional introductions have resulted in numerous species being translocated beyond their native ranges, often leading to their establishment and subsequent spread – a process referred to as biological
Phillip J. Haubrock   +42 more
wiley   +1 more source

Differential effects of agricultural expansion on wild bee taxonomic and functional diversity

open access: yesFunctional Ecology, Volume 40, Issue 4, Page 878-892, April 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Pollinators, especially bees, are in global decline, threatening biodiversity and food security. While intensive agriculture is a primary driver, its impact on bee functional diversity—particularly in the diverse Mediterranean region—remains understudied.
Manuel López‐Aliste   +9 more
wiley   +1 more source

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