Results 151 to 160 of about 851,487 (265)

Microcuenca Sendamal: Diagnóstico recursos naturales

open access: yes, 1998
La microcuenca Sendamal se encuentra localizada en la sierra norte del Perú. Políticamente, está ubicada en el departamento de Cajamarca, provincia de Celendín, en los distritos de Sorochuco y Huasmín. Pertenece a la región nor-oriental del Marañón. Geográficamente está ubicada entre las coordenadas 06° 47' 21" y 07° 04' 23" de latitud sur y 78° 09' 56"
Programa Nacional de Manejo de Cuencas Hidrográficas y Conservación de Suelos (PRONAMACHCS)   +1 more
openaire   +1 more source

Características mineraloquímicas e implicancias genéticas de la Vesubianita del Skarn Loma Marcelo, sierras australes de Buenos Aires [PDF]

open access: yes, 2013
Fil: Ballivián Justiniano, Carlos A.. Instituto de Recursos Minerales (INREMI). Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; ArgentinaFil: Lajoinie, María Florencia. Instituto de Recursos Minerales (INREMI).
Ballivián Justiniano, Carlos A.   +4 more
core  

Seeing herbaria in a new light: leaf reflectance spectroscopy unlocks trait and classification modeling in plant biodiversity collections

open access: yesNew Phytologist, EarlyView.
Summary Reflectance spectroscopy is a rapid method for estimating traits and discriminating species. Spectral libraries from herbarium specimens represent an untapped resource for generating broad phenomic datasets across space, time, and taxa. We conducted a proof‐of‐concept study using trait data and spectra from herbarium specimens up to 179 yr old,
Dawson M. White   +6 more
wiley   +1 more source

Beyond species means – the intraspecific contribution to global wood density variation

open access: yesNew Phytologist, EarlyView.
Summary Wood density is central for estimating vegetation carbon storage and a plant functional trait of great ecological and evolutionary importance. However, the global extent of wood density variation is unclear, especially at the intraspecific level. We assembled the most comprehensive wood density collection to date, including 109 626 records from
Fabian Jörg Fischer   +105 more
wiley   +1 more source

Small understory trees increase growth following sustained drought in the Amazon

open access: yesNew Phytologist, EarlyView.
Summary Droughts pose a major threat to the Amazon rainforest, yet the mechanisms enabling trees to maintain growth under prolonged drought remain poorly understood, particularly in the understory layer. We leveraged a 22‐yr Throughfall Exclusion (TFE) in a 1‐ha plot in eastern Amazonia, paired with a Control plot, to test whether small understory ...
Mateus C. Silva   +16 more
wiley   +1 more source

Fungal ecology in the age of 'omics

open access: yesNew Phytologist, EarlyView.
Summary The advancement of technology in recent decades has given us an unprecedented ability to observe the natural world. With modern sequencing and bioinformatics technologies, we can obtain more information about the microscopic world, and its interactions with the macroscopic world, than ever before.
Brontë R. Shelton   +12 more
wiley   +1 more source

Privilegiados Recursos Naturales del Perú

open access: yes, 2022
Antes de la llegada de los conquistadores españoles años 1930, ya existían relaciones entre los aborígenes y las aves marinas. Pero aquellos, aún cuando les hubiesen dedicado preferente atención, limitados por la falta de conocimientos y de modernas maquinarias, tractores; medios de transporte y otras, no pudieron adueñarse de los secretos que regía la
openaire   +1 more source

Análisis de la relación entre calidad institucional, recursos naturales y crecimiento económico [PDF]

open access: yes
Por mucho tiempo ha existido la idea de que los países con grandes reservas de recursos naturales tienen una gran ventaja con respecto a países con escasos recursos naturales. Sin embargo, el presente estudio muestra que dicha abundancia y la exportación
Aliaga Lordemann, Javier   +1 more
core  

Using Cultural Theory to Specify the Policy Actors, Belief Systems, and Sources of Coalition, Conflict, Stability, and Change in Policy Advocacy Coalitions and Environmental Resource Policies

open access: yesPolicy Studies Journal, EarlyView.
ABSTRACT We use grid‐group cultural theory (CT) to specify underspecified aspects of the Advocacy Coalition Framework (ACF). Our theoretical synthesis of CT and the ACF provides, first, an exhaustive typology of policy actors and their cultural cognitive biases that entail, guide, and constrain policy core beliefs about problem definitions and ...
Metodi Sotirov, Brendon Swedlow
wiley   +1 more source

Several occurrences of osteomyelitis in dinosaurs from a site in the Bauru Group, Cretaceous of Southeast Brazil

open access: yesThe Anatomical Record, Volume 309, Issue 3, Page 642-648, March 2026.
Abstract This study investigates the occurrence of osteomyelitis in non‐avian dinosaurs, focusing on the Ibirá locality, a site with a high incidence of this pathological condition. We analyzed six new osteopathic sauropod specimens from the Upper Cretaceous of Brazil.
Tito Aureliano   +3 more
wiley   +1 more source

Home - About - Disclaimer - Privacy