Results 111 to 120 of about 20,995 (300)

Marine natural products from sponges (Porifera) of the order Dictyoceratida (2013 to 2019); a promising source for drug discovery

open access: yes, 2020
Marine organisms have been considered an interesting target for the discovery of different classes of secondary natural products with wide-ranging biological activities.
Abdelmohsen, UR   +5 more
core   +1 more source

Benthic megafauna and the functioning of macroalgal forests and urchin barrens

open access: yesOikos, EarlyView.
Two temperate rocky reef food‐web models, representing the trophic diversity of the Mediterranean rocky reef communities, were built for the two stable states: macroalgal forests and barren grounds, which are characterized by opposite amounts of erect macroalgal biomass.
Chiara Bonaviri   +18 more
wiley   +1 more source

Assessing the Effect of Large Igneous Provinces on Global Oceanic Redox Conditions Using Non‐traditional Metal Isotopes (Molybdenum, Uranium, Thallium)

open access: yesGeophysical Monograph Series, Page 305-323., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Brian Kendall   +2 more
wiley  

+3 more sources

Carbohydrate–carbohydrate interaction provides adhesion force and specificity for cellular recognition [PDF]

open access: yes, 2004
© 2004 Bucior et al. This article is distributed under the terms of the Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported License. The definitive version was published in Journal of Cell Biology 165 (2004): 529-537, doi:10.1083/jcb ...
Bucior, Iwona   +11 more
core   +1 more source

Evidence for dispersal personality in the guppy across ecological conditions, with a minor effect of relative brain size

open access: yesOikos, EarlyView.
Individuals that disperse typically exhibit specific phenotypical traits that facilitate dispersal and settlement success, known as ‘dispersal syndromes'. Consequentially, characterizing dispersers is crucial to understand other processes such as metapopulation dynamics and biological invasions.
Gilles De Meester   +6 more
wiley   +1 more source

Antimicrobial activity of some bacteria isolated from marine sponge in Neom region, Saudi Arabia

open access: yesBMC Microbiology
Antimicrobial resistance reduces the possibility of avoiding and curing infectious diseases triggered by bacteria, viruses, parasites, and fungi. Therefore, searching for new antimicrobials from prolific producers of novel natural products, including ...
Mayadh Al Aboghaubar   +4 more
doaj   +1 more source

Incorporating environmental DNA metabarcoding for improved benthic biodiversity and habitat mapping

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Seafloor imagery is commonly used to collect information about the distribution of benthic organisms in order to generate habitat and biodiversity maps. Recent advances in genomics (e.g., environmental DNA; eDNA) show potential to complement video surveys for habitat mapping, but there have been few examples testing this.
Rylan J. Command   +8 more
wiley   +1 more source

ANTILEISHMANIAL EPIDIOXYSTEROLS FROM THE COLOMBIAN MARINE SPONGE Ircinia campana ARE OXIDATION PRODUCTS FROM NATURALLY OCCURRING Δ5,7 STEROLS

open access: yesVitae, 2009
Marine sponges of the genus Ircinia are known to contain several classes of metabolites, some of them with interesting biological activities as furanesesterterpenes, polyprenylated hydroquinones, macrolides, sulfur containing terpenoids, and steroids ...
Diana M. MÁRQUEZ F.   +1 more
doaj  

Invertebrados bentónicos marinos de la Antártida: ecología química, bioactividad y biodiversidad [PDF]

open access: yes, 2012
[spa] Esta tesis cubre diferentes aspectos de los invertebrados marinos bentónicos de la Antártida. Se trata de una tesis multidisciplinar presentada en formato artículos en la que se hacen las siguientes aportaciones: (i) por un lado se hace una ...
Taboada Moreno, Sergi
core  

Evaluating land–sea linkages using land cover change and coral reef monitoring data: A case study from northeastern Puerto Rico

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Land cover change that leads to increased nutrient and sediment runoff is an important driver of change in coral reef ecosystems. In this study, we combined satellite remote sensing and field monitoring to assess concomitant changes in watershed land cover and coral cover in northeastern Puerto Rico in 2000–2015.
Pirta Palola   +5 more
wiley   +1 more source

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