Results 101 to 110 of about 218,461 (283)

Changes in seed dispersal processes and the potential for between-patch connectivity for an arid land daisy [PDF]

, 2012
Dispersal is a major and critical process in population biology that has been particularly challenging to study. Animals can have major roles in seed dispersal even in species that do not appear specifically adapted to animal-aided dispersal.
Chesson, P., Day, J., Emmerson, L., Facelli, J., Possingham, H.   +4 more
core   +2 more sources

Oxide‐Free Titanium Coatings by Wire Arc Spraying in a Silane‐Doped Inert Atmosphere

Advanced Engineering Materials, EarlyView.
A silane‐doped argon atmosphere enables the production of oxide‐free titanium coatings via twin‐wire arc spraying at ambient pressure. This innovative approach eliminates residual oxygen, creating process conditions that prevent oxidation and nitride formation.
Manuel Rodriguez Diaz, Maik Szafarska, René Gustus, Kai Möhwald, Hans Jürgen Maier   +4 more
wiley   +1 more source

Estimating response distances of lesser prairie‐chickens to anthropogenic features during long‐distance movements

Ecosphere, 2020
Spatially distributed populations often rely on large‐scale processes for long‐term population stability. These processes are driven by individuals moving across the landscape through long‐distance dispersal movements.
Jacob M. Peterson, Julia E. Earl, Samuel D. Fuhlendorf, R. Dwayne Elmore, David A. Haukos, Ashley M. Tanner, Scott A. Carleton   +6 more
doaj   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

Advanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source

Distribution patterns and corresponding dispersal outcomes of seeds following secondary wind dispersal

Ecological Indicators
Seed dispersal outcomes such as antitelechory, atelechory, telechory, and seed storage, reflect plants' functional responses in dispersal. How diaspore attributes affect seed distribution patterns and corresponding dispersal outcomes following secondary ...
Wei Liang, Zhimin Liu, Xuanping Qin, Liang Tian, Lu Zong, Quanlai Zhou, Zhiming Xin, Jing Wu, Qun Ma   +8 more
doaj   +1 more source

Wide-range dispersal in juvenile Eagle Owls ( Bubo bubo ) across the European Alps calls for transnational conservation programmes [PDF]

, 2018
Although juvenile dispersal is an important life history component, it remains one of the less understood ecological processes regulating the dynamics of animal populations.
Aebischer, Adrian, Arlettaz, Raphaël, Nyffeler, Peter   +2 more
core  

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

Effect of Laser Deoxidation on Adhesive‐Bonded Aluminum in an Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
This study investigates laser ablation of aluminum under oxygen‐free conditions. The goal is to produce oxide‐free substrates that enable improved adhesive bonding with epoxy. Optimized laser parameters (90% overlap, 300 µJ) combined with oxide‐free substrates result in the highest tensile strength of the adhesive bond.
Sandra Gerland, Finn‐Lennard Janthur, Sarah Seffer, Jörg Hermsdorf, Ludger Overmeyer, Annika Raatz   +5 more
wiley   +1 more source

Larger Seeds are Dispersed Farther: the Long-Distance Seed Disperser ant Aphaenogaster famelica Prefers Larger Seeds

Sociobiology, 2015
Seed dispersal by ants (myrmecochory) is an important life phase in flowering herbs of temperate deciduous forests, and long dispersal is basically preferable in terms of plant fitness.
Satobu Takahashi, Takao Itino
doaj   +1 more source

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

Advanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff, Finn‐Lennard Janthur, Sascha Zimmermann, Sarah Seffer, Jörg Hermsdorf, René Gustus, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Christian Klose   +9 more
wiley   +1 more source