Results 111 to 120 of about 248,539 (299)

Habitat connectivity in reef fish communities and marine reserve design in Old Providence-Santa Catalina, Colombia [PDF]

, 2003
On the insular platform of Old Providence/Santa Catalina, Colombia, we compared nearshore lagoonal patch reefs to those on the northern bank distant from the islands to determine the importance of habitat connectivity to fish community structure ...
Appeldoorn, R.S., Friedlander, A., Mitchell-Chui, A., Sladek Nowlis, J., Usseglio, P.   +4 more
core   +2 more sources

Duplex Stainless Steel Laser‐Surface Textured: Stability in Brine Solution

Advanced Engineering Materials, EarlyView.
Controlled laser‐surface treatment (LST) of duplex DSS2205 steel is performed to increase its stability in brine solution under cyclic electrochemical assays. The superior protection with respect to flat and smooth panels is attributed to the presence of FeCr2O4 as the main protective oxide layer in the LST surface, after corrosion tests. The stability
Mohammad Rezayat, Hamidreza Enshaei, Elaine Armelin, José I. Iribarren, Antonio Mateo, Miguel Morales   +5 more
wiley   +1 more source

Coupling Genetic and Demographic Data to Reveal Dispersal Processes in Emperor Penguins

Ecology and Evolution
Dispersal is a ubiquitous phenomenon that affects the dynamics of the population and the evolution of natural populations; however, it is challenging to measure in most species. Furthermore, the influence of informed dispersal behaviors, referring to the
Jimmy Garnier, Gemma Clucas, Jane Younger, Bilgecan Sen, Christophe Barbraud, Michelle LaRue, Alexander D. Fraser, Sara Labrousse, Stéphanie Jenouvrier   +8 more
doaj   +1 more source

Behavioral and Genetic Diversity during Dispersal: Analysis of a Polymorphic Esterase Locus in Southern Pine Beetle, Dendroctonus frontalis [PDF]

, 1982
Dispersal behavior of the southern pine beetle, Dendroctonus frontalis Zimmermann (Coleoptera: Scolytidae), in response to synthetic aggregating pheromone (frontalin) indicates an exponential decrease in response with distance from the site of emergence.
Coster, Jack E., Florence, L. Zack, Johnson, Paul C.   +2 more
core   +1 more source

Dispersal: a matter of scale [PDF]

, 2018
Population density around the natal site is often invoked as an explanation for variation in dispersal distance, with the expectation that competition for limiting resources, coupled with increased intra‐specific aggression at high densities, should ...
Amar, Armitage, Baguette, Baillie, Banks, Bitume, Bonte, Bowler, Bowman, Brown, Burnham, Calange, Cale, Clobert, Clobert, Clobert, Clutton-Brock, Courchamp, Dennhardt, Denno, Dobson, Fonseca, Forero, Fronhofer, Gadgil, Greenwood, Greenwood, Hanski, Hardey, Heinrich, Hoogland, Hovestadt, Jenkins, Katzner, Kauffman, Kim, Loe, Léna, Martin, Massot, Matthysen, Matthysen, McGrady, McPeek, Mearns, Meester, Moran, Newton, Newton, Newton, Newton, Newton, Newton, Nisbet, Otronen, Picman, R Development Core Team, Ratcliffe, Ratcliffe, Restani, Rodrigues, Ronce, Rousset, Sergio, Smith, Southwood, Sutherland, Travis, Vuren, Wiens, Wolff   +70 more
core   +1 more source

Effective Long-Distance Pollen Dispersal in Centaurea jacea

PLoS ONE, 2009
Agri-environment schemes play an increasingly important role for the conservation of rare plants in intensively managed agricultural landscapes. However, little is known about their effects on gene flow via pollen dispersal between populations of these species.In a 2-year experiment, we observed effective pollen dispersal from source populations of ...
Albrecht, M., Duelli, P., Obrist, M.K., Müller, C., Kleijn, D., Schmid, B.   +5 more
openaire   +6 more sources

Advancing Research on Biomaterials and Biological Materials with Scanning Electron Microscopy under Environmental and Low Vacuum Conditions

Advanced Engineering Materials, EarlyView.
Herein, environmental scanning electron microscopy (ESEM) is discussed as a powerful extension of conventional SEM for life sciences. By combining high‐resolution imaging with variable pressure and humidity, ESEM allows the analysis of untreated biological materials, supports in situ monitoring of hydration‐driven changes, and advances the functional ...
Jendrian Riedel, Lea Dierker, Antoine Eyram Kwame, Kim Nora Wagner, Jonas J. Unterholzner, Jan‐Henning Dirks, Dorothea Brüggemann   +6 more
wiley   +1 more source

Enhanced Gamma Radiation Shielding Using Epoxy Quartz Fabric Composites Reinforced With CoCl2 Microparticles

Advanced Engineering Materials, EarlyView.
The growing demand for lightweight, nontoxic, and multifunctional gamma shielding materials has intensified efforts to find alternatives to conventional lead and aluminum‐based protectants. In this work, we develop epoxy quartz fabric composites reinforced with cobalt chloride (CoCl2) microparticles, fabricated via hand lay‐up with varying filler ...
Summan Urooge, Ahsan Irshad, Umar Jamil, Srosh Fazil, Khuram Liaqat, Kashif Shahzad, Fakhar Alam, Mehboob Alam   +7 more
wiley   +1 more source

Laser Metal Powder Deposition of Titanium Microalloyed HSLA Steel FeC0.12Si0.25Mn1.3

Advanced Engineering Materials, EarlyView.
This study investigates the additive manufacturing of titanium‐doped high‐strength low‐alloy (HSLA) steel via laser metal deposition. It reveals distinct process‐structure relationships for elemental powder blends compared to prealloyed feedstocks.
Olaf Stelling, Matthias Steinbacher, Nils Ellendt   +2 more
wiley   +1 more source

disperseNN2: a neural network for estimating dispersal distance from georeferenced polymorphism data. [PDF]

BMC Bioinformatics, 2023
Smith CCR, Kern AD.
europepmc   +1 more source