Results 41 to 50 of about 12,799 (231)

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

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

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

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

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

In silico selection of functionally important proteins from the mialome of Ornithodoros erraticus ticks and assessment of their protective efficacy as vaccine targets

open access: yesParasites & Vectors, 2019
Background New candidate protective antigens for tick vaccine development may be identified by selecting and testing antigen candidates that play key biological functions.
Ricardo Pérez-Sánchez   +3 more
doaj   +1 more source

Urbanization and food transition in the Brazilian Amazon: From wild to domesticated meat

open access: yesPeople and Nature, EarlyView.
Abstract Urbanization is expected to influence food transitions, resulting in a shift from wild foods to more domesticated foods. Concomitantly, food insecurity and urban demand for natural resources, including wildlife, are expected to increase overall, even when the per capita consumption is expected to decrease.
Willandia A. Chaves   +7 more
wiley   +1 more source

Midgut proteome of an argasid tick, Ornithodoros erraticus: a comparison between unfed and engorged females

open access: yesParasites & Vectors, 2015
Background The argasid tick Ornithodoros erraticus is the vector of African swine fever virus and of several Borrelia species that cause human relapsing fever in the Iberian Peninsula.
Ana Oleaga   +3 more
doaj   +1 more source

Una evaluación on-line a la demanda para el autoaprendizaje

open access: yesArbor: Ciencia, Pensamiento y Cultura, 2011
En la Escuela de Minas de la Universidad Politécnica de Madrid (UPM) se ha llevado a cabo el proceso de adaptación a los principios de Bolonia. Esto ha implicado cambios en la metodología de la enseñanza.
Miguel Balbás   +3 more
doaj   +1 more source

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