Results 91 to 100 of about 3,133,166 (336)

Cold-water coral reef frameworks, megafaunal communities and evidence for coral carbonate mounds on the Hatton Bank, north east Atlantic [PDF]

, 2008
Offshore banks and seamounts sustain diverse megafaunal communities, including framework reefs formed by cold-water corals. Few studies have quantified environmental effects on the alpha or beta diversity of these communities.
Hartley, J.P., Henry, L.-A., Long, David, Roberts, J.M.   +3 more
core   +1 more source

Molecular bases of circadian magnesium rhythms across eukaryotes

FEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

Archipelago reserves, a new option to protect montane entomofauna and beta-diverse ecosystems

Revista Mexicana de Biodiversidad, 2018
Beta diversity is often a dominant characteristic in mountain systems and naturally fragmented ecosystems. However, natural protected areas are traditionally designed to protect ecosystems with high alpha and low beta diversity.
Victor Moctezuma, Gonzalo Halffter, Alfonsina Arriaga-Jiménez   +2 more
doaj   +1 more source

Dispersal enhances beta diversity in nectar microbes

Ecology Letters, 2017
AbstractDispersal is considered a key driver of beta diversity, the variation in species composition among local communities, but empirical tests remain limited. We manipulated dispersal of nectar‐inhabiting bacteria and yeasts via flower‐visiting animals to examine how dispersal influenced microbial beta diversity among flowers.
Rachel L, Vannette, Tadashi, Fukami
openaire   +3 more sources

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

FEBS Letters, EarlyView.
The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang, Grace Du, Charity Yongo‐Luwawa, Angelina Lu, Brett Kinrade, Kim Munro, Karl E. Klose, William D. Lubell, Peter Davies, Shuaiqi Guo   +9 more
wiley   +1 more source

Interplay between circadian and other transcription factors—Implications for cycling transcriptome reprogramming

FEBS Letters, EarlyView.
This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley   +1 more source

Taxonomic and Functional Beta Diversity Patterns and Their Driving Factors of the Fish Assemblages Around Marine Islands

Journal of Marine Science and Engineering
Beta diversity is an important way to analyze community assembly mechanisms in different habitats or along environmental gradients. However, research on marine fish assemblages around islands has lagged, especially for functional beta diversity.
Guangjie Fang, Jun Liang, Rijin Jiang, Yazhou Zhang, Junlin Chen, Chuanxi Chen, Mingda Yang, Yongdong Zhou   +7 more
doaj   +1 more source

Effect of Disturbance Regime on Alpha and Beta Diversity of Rock Pools

Diversity, 2013
Measures of alpha diversity are more frequently used to detect environmental changes and subsequent impacts on biodiversity, while measures based on variability (beta diversity) are said to be more appropriate for detecting those impacts. Theory predicts
Annie Séguin, Dominique Gravel, Philippe Archambault   +2 more
doaj   +1 more source

Chytrid epidemics may increase genetic diversity of a diatom spring-bloom [PDF]

, 2013
Contrary to expectation, populations of clonal organisms are often genetically highly diverse. In phytoplankton, this diversity is maintained throughout periods of high population growth (that is, blooms), even though competitive exclusion among ...
A De Bruin, A De Bruin, Alena S Gsell, Bastiaan W Ibelings, BW Ibelings, DG Mann, E Van Donk, Ellen van Donk, F Altermatt, G Bell, G Hardin, J Wolinska, KM Evans, Koen JF Verhoeven, L De Meester, Lisette N de Senerpont Domis, MJ Anderson, P Jaccard, P Vos, PR Whitehorn, TA Rynearson, TJ Little, U Sommer   +22 more
core   +3 more sources

Partitioning the colonization and extinction components of beta diversity across disturbance gradients.

Ecology, 2020
Changes in species diversity often result from species losses and gains. The dynamic nature of beta diversity (spatial variation in species composition) that derives from such temporal species turnover, however, has received relatively little attention ...
S. Tatsumi, J. Strengbom, Mihails Čugunovs, J. Kouki   +3 more
semanticscholar   +1 more source