Results 11 to 20 of about 8,373 (103)

Long‐term experimental drought alters floral scent and pollinator visits in a Mediterranean plant community despite overall limited impacts on plant phenotype and reproduction

open access: yesJournal of Ecology, Volume 110, Issue 11, Page 2628-2648, November 2022., 2022
In the Mediterranean Basin, climate change is causing an intensification of drought intensity and frequency. Our community‐level in situ measures showed that drought altered floral scent with changes in plant–pollinator interactions and limited impacts on plant reproduction. We discuss why the context of our study—an exceptionally wet year—may have led
Coline C. Jaworski   +11 more
wiley   +1 more source

Few figs for frugivores: Riparian fig trees in Zimbabwe may not be a dry season keystone resource

open access: yesAfrican Journal of Ecology, Volume 58, Issue 4, Page 778-785, December 2020., 2020
Abstract Most plants flower and fruit at times of year when probabilities of pollination and seedling establishment are high. Fig trees (Ficus spp.) are often considered as keystone resources for vertebrate frugivores, in part because of year‐round fig production.
Stephen G. Compton, Jaco M. Greeff
wiley   +1 more source

Local‐scale tree and shrub diversity improves pollination services to shea trees in tropical West African parklands

open access: yesJournal of Applied Ecology, Volume 57, Issue 8, Page 1504-1513, August 2020., 2020
Sites with greater diversity of tree and shrub species had more bee visits and less extreme pollination limitation than less diverse sites, indicating that small‐scale diversity is associated with more efficient pollination services. Consequently, shea yields are likely to benefit from retention of a range of different tree and shrub species in ...
Aoife Delaney   +9 more
wiley   +1 more source

Analyse stratigraphique d’un lobe de gélifluxion des Torngats Centrales, Labrador [PDF]

open access: yes, 1983
Une coupe dans un lobe de gélifluxion de la vallée de Nakvak (Torngats centrales) expose une succession de dia-mictons et de sols fossiles. Les âges 14C de trois des sols enfouis présentent une inversion (de bas en haut: 1575 ± 76 BP; 1350 ±90 BP; 2450 ±
de Vernal, Anne   +2 more
core   +1 more source

La citadelle de Brouage et la dynamique paléoenvironnementale du marais charentais: l’apport de la malacologie et palynologie [PDF]

open access: yes, 2011
International audienceL'ancien port de Brouage est situé face à l'île d'Oléron, aujourd'hui en plein marais, à quelques kilomètres de la mer. Si le chenal est aujourd'hui inaccessible à tout bateau de fort tonnage, cela n'a pas été le cas à l'époque ...
Aoustin, David   +2 more
core   +4 more sources

Le till pollinifère de la péninsule du Nunavik, Québec septentrionnal [PDF]

open access: yes, 1996
Des concentrations polliniques étonnamment élevées ont été notées dans le till en périphérie du cratère du Nouveau-Québec (Richard et al., 1991; Frechette, 1994).
Bouchard, Michel A.   +2 more
core   +1 more source

Représentation pollinique actuelle et subactuelle des peuplieraies boréales au Nouveau-Québec [PDF]

open access: yes, 1984
Par son importance à la limite des forêts et les exigences particulières de son établissement, le peuplier baumier est une espèce dont la présence dans les échantillons organiques fossiles constitue un indice important pour la reconstitution de paysages ...
Comtois, Paul, Payette, Serge
core   +1 more source

Palynostratigraphie du Tardiglaciaire et de l’Holocène de la région du lac Chance Harbour, Nouvelle-Écosse [PDF]

open access: yes, 1989
Une carotte en provenance du lac Chance Harbour livre l'histoire postglaciaire de la végétation environnante. De l'argile rose, probablement glaciolacustre, est présente à la base de la séquence.
Jetté, Hélène, Mott, Robert J.
core   +1 more source

Pollen morphology, deep learning, phylogenetics, and the evolution of environmental adaptations in Podocarpus

open access: yesNew Phytologist, Volume 247, Issue 3, Page 1460-1473, August 2025.
Summary Podocarpus pollen morphology is shaped by both phylogenetic history and the environment. We analyzed the relationship between pollen traits quantified using deep learning and environmental factors within a comparative phylogenetic framework.
Marc‐Élie Adaimé   +4 more
wiley   +1 more source

Servicesheds connect people to the landscapes upon which they depend

open access: yesPeople and Nature, Volume 7, Issue 1, Page 112-126, January 2025.
Abstract Ecosystem services (ES) are benefits people receive from nature. To sustain these benefits, we need to spatially connect communities benefitting from specific ES with landscape features that generate the ES. A variety of process‐based models support ES assessments by estimating the biophysical supply of ES that comes from landscapes.
Yiyi Zhang   +7 more
wiley   +1 more source

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