Results 51 to 60 of about 851,487 (265)

Spatiotemporal Fire Patterns and Post‐fire Forest Change in Peru (2000–2021)

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Fire is increasingly more frequent and severe in many tropical regions, leading to significant forest loss, diminished biodiversity, and reduced Nature's contributions to people (NCPs). In this study, we analyzed the spatiotemporal patterns of fire in Peru and its regions, focusing on: (1) burned area, (2) size, and (3) number of fires, using ...
Maricel Móstiga   +3 more
wiley   +1 more source

Efectos del ácido giberélico, bencilaminopurina y fluridona en la germinación in vitro de Ugni molinae Turcz. (Myrtaceae)

open access: yesGayana: Botanica, 2016
En la presente investigación se estudiaron los efectos de bencilaminopurina (BAP), ácido giberélico (GA ) y fluridona (FLU) sobre la germinación in vitro de murtilla (Ugni molinae), una especie nativa de Chile. La semilla de murtilla presenta una fuerte
Mario Rodríguez Beraud   +5 more
doaj  

Centrosema flavescens (Fabaceae, Papilionoideae), a new species from the Yucatan Peninsula, Mexico

open access: yesBotan‪ical Sciences, 2023
Background: Centrosema (Fabaceae) includes 35-44 species in the New World, 10 in Mexico, and 9 in the Yucatan Peninsula. Most species have trifoliolate leaves and bicolored flowers.
Germán Carnevali Fernández-Concha   +4 more
doaj   +1 more source

Sunflower seed hull: Its value as a broad mushroom substrate [PDF]

open access: yes, 2016
Sunflower (Heliantus annus) seed hull (SSH), an abundant and cheap lignocellulosicresidue from edible oil-seed industries, was evaluated as an alternative substrate formushroom cultivation.
Curvetto, Nestor Raul   +2 more
core  

Multiple scales of fear: foraging behaviour of white‐naped jays in semiarid landscapes

open access: yesOikos, EarlyView.
Animals must constantly balance the need to find resources with the risk of predation. Not only avoiding direct encounters with predators but also assessing the overall risk of their environment using cues, social information or habitat traits at multiple spatial and temporal scales.
Maria Carolina Beiriz   +2 more
wiley   +1 more source

Biological colonization and deterioration of mortars by phototrophic organisms

open access: yesMateriales de Construccion, 1995
In the last years, considerable studies on the effect of phototrophic organisms (cyanobacteria, algae, lichens, mosses and vascular plants) on cultural heritage properties have been carried out.
C. Saiz-Jiménez, X. Ariño
doaj   +1 more source

La apomixis, su estudio y posibles usos [PDF]

open access: yes, 2008
La apomixis es una forma de reproducción asexual a través de semillas que origina plantas genéticamente idénticas a la planta madre (clones). Su estudio para entender el funcionamiento, herencia y regulación a nivel génico de este fenómeno en pasto ...
Cervigni, Gerardo   +4 more
core  

Combined microbiological test to assess changes in an organic matrix used to avoid agricultural soil contamination, exposed to an insecticide [PDF]

open access: yes, 2014
Combined microbiological test (Biolog Ecoplate, denaturing gradient gel electrophoresis (DGGE) and Real Time PCR (qPCR)) were developed to evaluate the impact of repeated diazinon (DZN) applications at high concentration (40 mg kg-1) on microbial ...
Cuozzo, Sergio Antonio   +6 more
core   +1 more source

Marine trophic architecture and hidden ecological connections in the Strait of Magellan: keystone species and ecosystem resilience

open access: yesOikos, EarlyView.
Understanding the ecological implications of species coexistence is central to biodiversity studies and to identify environmental and anthropogenic drivers of ecosystem dynamics, where ecological network analysis offers valuable insights. This study examines the complexity, structure, and potential responses to disturbances of the Strait of Magellan's ...
Claudia D. Andrade   +4 more
wiley   +1 more source

Nidificación inusual del Loro Barranquero (Cyanoliseus patagonus) en cavidades naturales de árboles [PDF]

open access: yes, 2018
The Burrowing Parrot Cyanoliseus patagonus is known to breed in burrows mostly on cliffs and ravines in arid or semi‐arid regions of Argentina and Chile.
Berkunsky, Igor   +4 more
core  

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