Results 31 to 40 of about 265,190 (157)

Tenir compte de la variation géographique et de la pauvreté dans l’intervention en protection de l’enfance au Québec

Criminologie, 2023
Plusieurs études menées au cours de la dernière décennie démontrent une relation claire entre la pauvreté et le risque de faire face à une intervention de la Direction de la protection de la jeunesse au Québec (DPJ).
Tonino Esposito, Johanna Caldwell, Marie Saint Girons, Martin Chabot, Stéphanie Précourt, Nico Trocmé   +5 more
doaj   +1 more source

Climate and hybridization shape stomatal trait evolution in Populus

New Phytologist, Volume 249, Issue 2, Page 792-809, January 2026.
Summary Stomata play a critical role in regulating plant responses to climate. Where sister species differ in stomatal traits, interspecific gene flow can influence the evolutionary trajectory of trait variation, with consequences for adaptation. Leveraging six latitudinally distributed contact zones spanning the natural hybrid zone between Populus ...
Michelle Zavala‐Paez, Stephen R. Keller, Jason Holliday, Matthew C. Fitzpatrick, Jill A. Hamilton   +4 more
wiley   +1 more source

Boletín de la Real Sociedad Geográfica: Tomo LXXXIII Número 7 a 12 - 1947 julio

, 1947
Incluye índices. Catálogo de la Biblioteca de la Real Sociedad Geográfica, por D. José Gavira, págs.

core   +1 more source

Environmental and Geographic Conditions on the Breeding Grounds Drive Bergmannian Clines in Nightjars

Journal of Biogeography, Volume 52, Issue 10, October 2025.
ABSTRACT Aim To evaluate (1) whether three migratory nightjar species (Family Caprimulgidae) adhere to Bergmann's rule, (2) whether environmental factors on the breeding or wintering grounds determine body size, and (3) which mechanistic hypotheses best explain Bergmannian patterns in body size.
Aaron A. Skinner, Alicia M. Korpach, Susanne Åkesson, Marja H. Bakermans, Erin M. Bayne, Thomas J. Benson, Giovanni Boano, R. Mark Brigham, Simon S. Christiansen, Greg J. Conway, Christina M. Davy, Ruben Evens, Kevin C. Fraser, Autumn‐Lynn Harrison, Anders Hedenström, Ian G. Henderson, Juha Honkala, Lars B. Jacobsen, Michiel Lathouwers, Peter P. Marra, Janet W. Ng, Gabriel Norevik, Amy L. Scarpignato, Kasper Thorup, Christopher M. Tonra, Steven L. Van Wilgenburg, Andrew C. Vitz, Michael Ward, Elly Knight   +28 more
wiley   +1 more source

Soy, doy, estoy y voy: la yod desinencial en el corpus CODEA+ 2015

e-Scripta Romanica, 2021
Desde una perspectiva que aúna diferentes disciplinas lingüísticas, se investiga la variación consustancial al cambio y la selección que afectaron a las variables de primera persona de singular de los verbos ser, estar, dar e ir en documentos notariales ...
Marina Serrano Marín
doaj   +1 more source

Mutational load and adaptive variation are shaped by climate and species range dynamics in Vitis arizonica

New Phytologist, Volume 247, Issue 2, Page 998-1014, July 2025.
Summary Genetic load can reduce fitness and hinder adaptation. While its genetic underpinnings are well established, the influence of environmental variation on genetic load is less well characterized, as is the relationship between genetic load and putatively adaptive genetic variation.
Christopher J. Fiscus, Jonás A. Aguirre‐Liguori, Garren R. J. Gaut, Brandon S. Gaut   +3 more
wiley   +1 more source

Intraspecific variation in body size and shape in an Andean highland anole species, Anolis ventrimaculatus (Squamata: Dactyloidae)

Revista de Biología Tropical, 2013
Variation in body characteristics related to lizard locomotion has been poorly studied at the intraspecific level in Anolis species. Local adaptation due to habitat heterogeneity has been reported in some island species.
Martha L. Calderón-Espinosa, Angela M. Ortega-León, Joan G. Zamora-Abrego   +2 more
doaj  

Macroclimatic niche similarity and species relatedness shift their influence on species co‐occurrence in bryophyte forest communities across scales

Journal of Ecology, Volume 113, Issue 6, Page 1546-1559, June 2025.
The relationship between epiphytic bryophyte species associations changes with scale. Macroclimatic niche similarity strongly influences co‐occurrence globally but less so at smaller scales. Most species interactions are positive or neutral across scales, though ~7% shift from positive at microhabitat to negative at regional scales, highlighting scale ...
Fernando Hurtado, João Gonçalves, Helena Hespanhol, Cristina Ronquillo, Belén Estébanez, Pedro Aragón, Nagore G. Medina, Joaquín Hortal   +7 more
wiley   +1 more source

Estudio de la vulnerabilidad de redes de transporte desde una perspectiva geográfica

Revista de Estudios Andaluces, 2012
En la planificación y gestión de las redes de transporte no suele hacerse referencia a la vulnerabilidad de las mismas. Las consecuencias económicas, sociales y territoriales de los daños producidos sobre estas redes por acontecimientos de carácter ...
Eduardo Rodríguez-Núñez
doaj   +1 more source

Geographic variation in developmental plasticity among populations of the canyon treefrog in response to temperature and pond‐drying

Journal of Zoology, Volume 324, Issue 2, Page 103-117, October 2024.
This study focuses on the responses of the canyon tree frog (Dryophytes arenicolor) larvae to temperature and pond‐drying. Conducting a common garden experiment with larvae from three distinct populations, we found significant geographic variation in plastic responses and observed that populations exhibit specific responses to each treatment in both ...
C. I. Hernández‐Herrera, H. A. Pérez‐Mendoza, J. Fornoni   +2 more
wiley   +1 more source