Results 61 to 70 of about 915,309 (304)

The mid-domain effect: It’s not just about space [PDF]

, 2013
Ecologists and biogeographers have long sought to understand how and why diversity varies across space. Up until the late 20th century, the dominant role of environmental gradients and historical processes in driving geographical species richness ...
Letten, Andrew D., Lyons, S. Kathleen, Moles, Angela T.   +2 more
core   +1 more source

Richness-mass relation self-calibration for galaxy clusters

, 2012
This work attains a threefold objective: first, we derived the richness-mass scaling in the local Universe from data of 53 clusters with individual measurements of mass.
Andreon, S., Bergé, J.
core   +1 more source

The planar cell polarity protein Vangl2 interacts with the PDZ‐domains of Scribble but not with a unique PDZ‐like domain in Inturned

FEBS Letters, EarlyView.
Structural and biochemical characterisations show that the planar cell polarity (PCP) protein Inturned harbours a unique PDZ‐like domain that does not bind canonical PDZ‐binding motifs (PBMs) like that of another PCP protein Vangl2. In contrast, the apical‐basal polarity protein Scribble contains four PDZ domains that bind Vangl2, but one PDZ domain ...
Stephan Wilmes, Jan Brysch, Carmen Gelze, Lilli Meier, Daniel Kümmel   +4 more
wiley   +1 more source

Seasonal variation in the leaf-litter frog community (Amphibia: Anura) from an Atlantic Forest Area in the Salto Morato Natural Reserve, southern Brazil

Zoologia (Curitiba), 2011
In this study we provide the first data regarding community parameters of leaf-litter anurans inhabiting a forest floor in the state of Paraná, southern Brazil, including information on community species richness, composition, specific density and ...
Manuela Santos-Pereira, Adriane Candaten, Douglas Milani, Frederico B. Oliveira, Joana Gardelin, Carlos F. D. da Rocha   +5 more
doaj   +1 more source

Orientation bias of optically selected galaxy clusters and its impact on stacked weak-lensing analyses [PDF]

, 2014
Weak-lensing measurements of the averaged shear profiles of galaxy clusters binned by some proxy for cluster mass are commonly converted to cluster mass estimates under the assumption that these cluster stacks have spherical symmetry.
A. Kathy Romer, Abel, Abell, Allen, Applegate, Bartelmann, Behroozi, Bett, Biesiadzinski, Birkinshaw, Blanton, Christophe Benoist, Christopher J. Miller, Christopher P. Davis, Conroy, Corless, Dietrich, Eduardo Rozo, Eli Rykoff, Fadda, Gao, Gladders, Hao, Hao, Israel, Jeeseon Song, Jiangang Hao, Jing, Johnston, Johnston, Jones, Jörg P. Dietrich, Kasun, Khedekar, Kim, Koester, Kravtsov, Kruse, Leon Baruah, Loveday, Luiz A. N. da Costa, Marcio A. G. Maia, Matthew Becker, Michael Busha, Milkeraitis, Miller, Navarro, Oguri, Planck Collaboration XII, Postman, Press, Reddick, Reichardt, Ricardo Ogando, Risa Wechsler, Rozo, Rozo, Rozo, Rozo, Rozo, Rozo, Rozo, Rozo, Rykoff, Rykoff, Schechter, Sehgal, Sheldon, Sheth, Soares-Santos, Szepietowski, Timothy A. McKay, Tinker, Vikhlinin, Wright, Yuanyuan Zhang   +75 more
core   +2 more sources

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

The snake assemblage (Squamata: Serpentes) of a Cerrado-Caatinga transition area in Castelo do Piauí, state of Piauí, Brazil

Zoologia (Curitiba), 2011
This study records and analyzes the diversity and structure of a snake assemblage in a transition area between Cerrado and Caatinga, in the municipality of Castelo do Piauí, state of Piauí, comparing the distribution and similarity of the species ...
Francílio da Silva Rodrigues, Ana Lúcia da Costa Prudente   +1 more
doaj   +1 more source

Effect of physiographical factors on tree species diversity (case study: Kandelat Forest Park) [PDF]

تحقیقات جنگل و صنوبر ایران, 2013
In order to identify the diversity of tree species in relation to physiographic factors (elevation, aspect and slope), the Kandelat Forest Park with an area of 614.85 hectare was surveyed, where is located southeast of Rasht city.
Hasan Pourbabaei, Tahereh Haghgooy
doaj   +1 more source

Re-structuring of marine communities exposed to environmental change [PDF]

, 2011
Species richness is the most commonly used but controversial biodiversity metric in studies on aspects of community stability such as structural composition or productivity.
Alexandridis, Nicolaos, Antunes, Bruno L., bin Radzi, Zulkamal, Cifuentes, Mauricio, Costello, Mark J., da Gama, Bernardo A. P., Hillock, Kristina, Hobday, Alistair J., Kaufmann, Manfred J., Keller, Stefanie, Kraufvelin, Patrik, Krüger, Ina, Lauterbach, Lars, Lenz, Mark, Link, Heike, Molis, Markus, Nakaoka, Masahiro, Nyström, Julia, Stockhausen, Björn, Thiel, Martin, Thomason, Jeremy C., Vance, Thomas, Wahl, Martin, Weseloh, Annika, Whittle, Mark, Wiesmann, Lisa, Wunderer, Laura, Yamakita, Takehisa   +27 more
core   +1 more source

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source