Results 21 to 30 of about 62,829 (219)

Trait coevolution and causal inference using generalized dynamic phylogenetic models

open access: yesMethods in Ecology and Evolution, EarlyView.
Abstract Phylogenetic comparative methods are widely used to study trait coevolution across biological and cultural domains. The most common methods are phylogenetic generalized linear (mixed) models, phylogenetic path analysis, Pagel's ‘discrete’ method and Ornstein–Uhlenbeck models. While some frameworks like generalized linear mixed models are quite
Erik J. Ringen   +3 more
wiley   +1 more source

Functional homogenization of terrestrial mammals outside protected areas in the Hengduan Mountains, China

open access: yesConservation Biology, EarlyView.
Abstract Despite the crucial role of human impacts on biodiversity loss, many assessments of this loss focus on single metrics, such as species richness, and overlook the multidimensional effects of human activities. Because of its importance to ecosystem functioning, we investigated the functional diversity of medium‐ and large‐sized mammal ...
Xueyou Li   +8 more
wiley   +1 more source

Geographic risks to functional groups of mammals and birds from habitat loss in Mexico

open access: yesConservation Biology, EarlyView.
Abstract There is a need to quantify the impact of habitat loss due to anthropogenic factors on different aspects of biodiversity, such as functional trait diversity represented by functional groups (FGs). We developed a metric to assess the weighted risk of loss of habitat for 33 FGs of mammals and 36 FGs of birds in Mexico based on potential ...
Fernando Mayani‐Parás   +4 more
wiley   +1 more source

Line width distributions as evidence for axisymmetry in the broad line regions of active galaxies [PDF]

open access: yes, 1998
The nuclei of a wide class of active galaxies emit broad emission lines with widths at half maximum (FWHM) in the range $10^{3}-10^{4}$ km s$^{-1}$. This spread of widths is not solely a consequence of the range of the luminosities of these sources since
Raine, D. J., Rudge, C. M.
core   +2 more sources

Effects of restoration practices on biodiversity in temperate and boreal forests

open access: yesConservation Biology, EarlyView.
Abstract Several restoration practices are used to mitigate and compensate for the negative effects of large‐scale forestry on biodiversity in temperate and boreal forests. A comprehensive synthesis of the benefits of these practices across taxa is missing. We conducted a systematic review and meta‐analysis on this topic.
Malin Tälle   +2 more
wiley   +1 more source

Pour une Écologie des Somatiques?

open access: yesRevista Brasileira de Estudos da Presença, 2014
Ce texte traite de la parenté conceptuelle et théorique entre Somatiques et Écologie scientifique. Après une définition de la notion scientifique d’écologie, il s’attache à définir trois notions clés de l’écologie: celle de potentiel, qui permet de ...
Isabelle, Joanne
doaj  

Selección de genes de referencia para análisis transcripcionales en el modelo clavel (Dianthus caryophyllus L.) - Fusarium oxysporum f. sp. dianthi

open access: yesRevista Colombiana de Química, 2019
En el presente trabajo se seleccionaron y validaron genes de referencia para estudios transcripcionales en el modelo clavel - Fusarium oxysporum f. sp. dianthi.
Santiago Monroy-Mena   +4 more
doaj   +1 more source

Phase IIB, Randomized, Double‐Blind, Placebo‐Controlled Clinical Trial of Intravenous Defibrotide for the Prevention and Treatment of Respiratory Distress and Cytokine Release Syndrome in COVID‐19

open access: yesEuropean Journal of Haematology, EarlyView.
ABSTRACT Introduction Endothelial dysfunction is key in COVID‐19 pathogenesis. This randomized, double‐blind phase IIb trial investigated continuous intravenous infusion of defibrotide in patients hospitalized with SARS‐CoV‐2 infection and respiratory failure.
Ruben Jara Rubio   +38 more
wiley   +1 more source

Control de la Fusariosis vascular en clavel en el suroeste de España mediante la biodesinfección del suelo. [PDF]

open access: yes, 2013
El presente trabajo presenta una evaluación de las alternativas no químicas al 1,3 dicloropropeno + cloropicrina (AGROC) usado para el control de la fusariosis vascular en clavel en campos experimentales del suroeste de España.
Boix Ruiz, A.   +6 more
core   +1 more source

Reverberation Measurements of the Inner Radius of the Dust Torus in Nearby Seyfert 1 Galaxies

open access: yes, 2005
The most intense monitoring observations yet made in the optical (UBV) and near-infrared (JHK) wave bands were carried out for nearby Seyfert1 galaxies of NGC 5548, NGC 4051, NGC 3227, and NGC 7469.
Antonucci R.   +16 more
core   +2 more sources

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