Results 71 to 80 of about 31,504 (196)

Los intereses emergentes sobre la alta montaña y la vida campesina: tensiones y contradicciones de la delimitación de páramos en Colombia

Cuadernos de Geografía: Revista Colombiana de Geografía, 2019
Las políticas ambientales que se implementan en zonas habitadas por campesinos han configurado una tensión en su relación con el Estado, que en lugar de resolverse se extiende a nuevos territorios.
Olga Lucia Méndez Polo
doaj   +1 more source

First preliminary tests of the general relativistic gravitomagnetic field of the Sun and new constraints on a Yukawa-like fifth force from planetary data

, 2007
The general relativistic Lense-Thirring precessions of the perihelia of the inner planets of the Solar System are about 10^-3 arcseconds per century. Recent improvements in planetary orbit determination may yield the first observational evidence of such ...
Adelberger, Ashby, Barker, Bertolami, Bertotti, Ciufolini, Ciufolini, Ciufolini, Ciufolini, Cugusi, Damour, de Sitter, Dvali, Everitt, Everitt, Fienga, Fischbach, Fitch, Iorio, Iorio, Iorio, Iorio, Iorio, Iorio, Iorio, Krasinsky, L. Iorio, Lense, Lucchesi, Lucchesi, Lue, Mashhoon, Mecheri, Murphy, Newhall, Nordtevdt, Nordtvedt, Nordtvedt, Paternò, Pijpers, Pijpers, Pitjeva, Pitjeva, Reynaud, Ries, Ruggiero, Schiff, Sereno, Sereno, Sereno, Soffel, Standish, Stella, Thorne, Will   +54 more
core   +1 more source

Individuality obscures geographical song variation in two passerine sister species with contrasting distributions and movement ecology

Ibis, Volume 168, Issue 1, Page 95-116, January 2026.
Songbirds are a well‐established model group for the study of cultural evolution as their songs are learned (i.e. culturally transmitted), which may lead to divergence in song characteristics between populations. Song variation across populations may be affected by geographical isolation, timing and duration of the learning period, and life strategies ...
Javier Oñate‐Casado, Sailee Pradeep Sakhalkar, Michal Porteš, Václav Beran, Cristian Pérez‐Granados, Juan Traba, Adrián Barrero, Adam Petrusek, Tereza Petrusková   +8 more
wiley   +1 more source

Some interesting Orthotrichum records from Venezuela [PDF]

, 1999
Orthotrichum subulatum Mitt. and Orthotrichum diaphanum Brid. var. diaphanum are reported from the Mérida Páramo, representing the first records of these two species in Venezuela. Additionally, new records of the recently described O. tenuicaule Lewinsky
Garilleti, Ricardo, Lara, Francisco, Mazimpaka, Vicente   +2 more
core  

Wormhole geometries supported by a nonminimal curvature-matter coupling

, 2010
Wormhole geometries in curvature-matter coupled modified gravity are explored, by considering an explicit nonminimal coupling between an arbitrary function of the scalar curvature, R, and the Lagrangian density of matter.
A. De Felice, A. Eddington, A. G. Riess, Francisco S. N. Lobo, H. Weyl, H. A. Buchdahl, M. Visser, Nadiezhda Montelongo Garcia, O. Bertolami, S. Nojiri, S. W. Hawking, V. Faraoni, V. Faraoni   +12 more
core   +1 more source

Campos de altitude from Brazil: Neglected biodiversity treasures under threat

Conservation Science and Practice, Volume 8, Issue 2, February 2026.
Igor Musauer Kessous
wiley   +1 more source

Understanding the Biogeographic Scope of Next‐Generation Sequencing Methods in Genomic Studies of Montane Taxa

Journal of Biogeography, Volume 53, Issue 1, January 2026.
ABSTRACT Aim Next‐generation sequencing has become a powerful tool for increasing the robustness and reliability of phylogeographic analyses. However, it is unclear how much the use of these techniques has grown quantitatively, and to what extent their use has been equitably distributed among regions.
Israel Moreno‐Contreras, Adolfo G. Navarro‐Sigüenza   +1 more
wiley   +1 more source

Un modelo de sucesión-regeneración de los páramos después de quemas

Caldasia, 1997
The patterns and initial mechanisms of regeneration-succession in paramos after fire disturbance were studied. The model of species life histories was used to form groups with similar vital attributes (discussed by Noble & Slatyer 1980), and lo establish
Vargas Ríos Orlando
doaj  

Rizospheric Microbiota of Espeletia spp. from Santa Inés and Frontino-Urrao Paramos in Antioquia, Colombia

Acta Biológica Colombiana, 2015
The frailejón (Espeletia spp.) is the emblematic shrub of the paramo. This is an important ecosystem because they are sources of water and organic matter, and are inhabited by a high number of endemic biological species. Considering the importance of the
Pilar Ximena LIZARAZO-MEDINA, Diana GÓMEZ-VASQUEZ   +1 more
doaj   +1 more source

Metric-affine f(R,T) theories of gravity and their applications

, 2018
We study f(R,T) theories of gravity, where T is the trace of the energy-momentum tensor T_{\mu\nu}, with independent metric and affine connection (metric-affine theories).
Barrientos, E., Lobo, Francisco S. N., Mendoza, S., Olmo, Gonzalo J., Rubiera-Garcia, D.   +4 more
core   +1 more source