Results 111 to 120 of about 3,133,166 (336)

An Empirical Comparison of Beta Diversity Indices in Establishing Prairies [PDF]

, 2010
Whittaker (1960, 1972) first proposed the idea that species diversity has spatial components, with alpha diversity estimating diversity within individual stands (or communities) and beta diversity estimating the number of community types in an area (or ...
Wilsey, Brian, Wilsey, Brian
core   +3 more sources

Substrate specificity of Burkholderia pseudomallei multidrug transporters is influenced by the hydrophilic patch in the substrate‐binding pocket

FEBS Letters, EarlyView.
Multidrug transporters BpeB and BpeF from the Gram‐negative pathogen Burkholderia pseudomallei have a hydrophilic patch in their substrate‐binding pocket. Drug susceptibility tests and growth curve analyses using an Escherichia coli recombinant expression system revealed that the hydrophilic patches of BpeB and BpeF are involved in the substrate ...
Ui Okada, Satoshi Murakami
wiley   +1 more source

Temporal homogenization of functional and beta diversity in bird communities of the Swiss Alps

Diversity and Distributions: A journal of biological invasions and biodiversity, 2020
Describing the spatio‐temporal dynamics of biotic communities is critical for understanding how environmental change can affect biodiversity. Mountains are especially susceptible to such changes (e.g., climate change) and, consequently, have been ...
Vicente García‐Navas, T. Sattler, Hans Schmid, A. Ozgul   +3 more
semanticscholar   +1 more source

Fast Computations for Measures of Phylogenetic Beta Diversity

PLOS ONE, 2016
For many applications in ecology, it is important to examine the phylogenetic relations between two communities of species. More formally, let [Formula: see text] be a phylogenetic tree and let A and B be two samples of its tips, representing the examined communities.
Tsirogiannis, Constantinos, Sandel, Brody   +1 more
openaire   +5 more sources

Function‐driven design of a surrogate interleukin‐2 receptor ligand

FEBS Letters, EarlyView.
Interleukin (IL)‐2 signaling can be achieved and precisely fine‐tuned through the affinity, distance, and orientation of the heterodimeric receptors with their ligands. We designed a biased IL‐2 surrogate ligand that selectively promotes effector T and natural killer cell activation and differentiation. Interleukin (IL) receptors play a pivotal role in
Ziwei Tang, Zelin Cheng, Teng Li, Fulian Wang, Liangminghui Zhang, Xiuxiu He, Lili Liu, Wei Wang, Aibin Liang, Guang Yang   +9 more
wiley   +1 more source

Fish beta diversity responses to environmental heterogeneity and flood pulses are different according to reproductive guild

Neotropical Ichthyology, 2018
In floodplain communities, beta diversity is influenced by different factors; however, environmental heterogeneity and floods are believed to be particularly influential.
Ángela Gutiérrez C, Jean Carlo Gonçalves Ortega, Angelo Antonio Agostinho   +2 more
doaj   +1 more source

Reduced tillage, but not organic matter input, increased nematode diversity and food web stability in European long‐term field experiments [PDF]

, 2019
Soil nematode communities and food web indices can inform about the complexity, nutrient flows and decomposition pathways of soil food webs, reflecting soil quality.
De Caceres M., De Goede R. G. M., Edgar R. C., Ferris H., Ferris H., Köppen W., Mekonen S., Minton N. A., Moura G. S., Neher D. A., Neher D. A., Neher D. A., Niles R. K., Oksanen J., Oostenbrink M., Pan F., Pinheiro J., R Development Core Team, RStudio Team, Toth G., Wang K.‐H., WRB, I. W. G., Yeates G. W.   +22 more
core   +1 more source

Mechanisms of parasite‐mediated disruption of brain vessels

FEBS Letters, EarlyView.
Parasites can affect the blood vessels of the brain, often causing serious neurological problems. This review explains how different parasites interact with and disrupt these vessels, what this means for brain health, and why these processes matter. Understanding these mechanisms may help us develop better ways to prevent or treat brain infections in ...
Leonor Loira, Sílvia Arroz‐Madeira, Cláudio A. Franco, Sara Silva Pereira   +3 more
wiley   +1 more source

Patrones de diversidad alfa, beta y gama de la herpetofauna de las tierras bajas y valles adyacentes del Pacífico de México [PDF]

, 2007
The latitudinal distribution patterns of alpha, beta and gamma diversity of reptiles, amphibians and herpetofauna were analyzed using individual binary models of potential distribution for 301 species predicted by ecological modelling for a grid of 9,932
Flores-Villela, O., García, A., Solano-Rodríguez, H.   +2 more
core  

Quantifying selection in immune receptor repertoires

, 2014
The efficient recognition of pathogens by the adaptive immune system relies on the diversity of receptors displayed at the surface of immune cells. T-cell receptor diversity results from an initial random DNA editing process, called VDJ recombination ...
Callan Jr., Curtis G., Elhanati, Yuval, Mora, Thierry, Murugan, Anand, Walczak, Aleksandra M.   +4 more
core   +1 more source