Results 61 to 70 of about 71,831 (295)

Spatial patterns in species-rich sclerophyll shrublands of southwestern Australia

open access: yes, 2008
Question: The drivers of spatial patterning among plant species and the implications of those patterns for the structure and function of plant communities are of ongoing interest and debate.
B.B. Lamont   +11 more
core   +1 more source

Encyclopedia of 2D β′‐In2Se3 Growth Using Chemical Vapor Deposition: The Effects of Synthesis Parameters Onto Material Quality

open access: yesAdvanced Engineering Materials, EarlyView.
A distinct semi‐confined inner‐tube chemical vapor deposition geometry enables reproducible, large‐area growth of phase‐pure 2D β′‐In2Se3 from InI + Se precursors. Engineering local vapor transport and optimizing precursor delivery and temperature–time conditions yield uniform continuous films.
Dasun P. W. Guruge   +8 more
wiley   +1 more source

The Coexistence of a Community of Species with Limited Competition

open access: yesJournal of Mathematical Analysis and Applications, 1998
The paper studies a model of a biological community of species with limited competition \[ \dot x_i= x_if_i(x_1, \dots, x_n), \quad 1\leq i\leq n,\;x_i\geq 0. \] The species of the community are divided into two groups, \(I=\{1, \dots,k\}\) and \(J=\{k+1, \dots, n\}\), \(0\leq k\leq n\), satisfying the requirement that the species in group \(I\) and ...
Caifeng, Tu, Jifa, Jiang
openaire   +1 more source

Global minimizers of coexistence for competing species [PDF]

open access: yesJournal of the London Mathematical Society, 2011
A class of variational models describing ecological systems of k species competing for the same resources is investigated. The occurrence of coexistence in minimal energy solutions is discussed and positive results are proven for suitably differentiated internal dynamics.
CONTI, MONICA, V. Felli
openaire   +3 more sources

Post‐pollination barriers contribute to coexistence of partially pollinator‐sharing Arisaema species (Araceae)

open access: yesEcology and Evolution, 2023
Reproductive isolation plays an important role in maintaining the species integrity of sympatric close relatives. For sympatric Arisaema species, interspecific gene flow is expected to be effectively prevented by pre‐pollination barriers, particularly ...
Luo Zeng   +5 more
doaj   +1 more source

Neighborhood Effects on Tree Mortality Depend on Life Stage of Neighbors

open access: yesFrontiers in Plant Science, 2022
Neighborhood effects are a crucial ecological processes that allow species to coexist in a forest. Conspecific and heterospecific neighbors, as major group classifications, affect tree mortality through various mechanisms associated with neighbor life ...
Yi He   +7 more
doaj   +1 more source

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

open access: yesAdvanced Engineering Materials, EarlyView.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele   +2 more
wiley   +1 more source

Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions

open access: yesAdvanced Functional Materials, EarlyView.
This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian   +7 more
wiley   +1 more source

Pairwise interaction point processes for modelling bivariate spatial point patterns in the presence of interaction uncertainty [PDF]

open access: yes, 2015
Current ecological research seeks to understand the mechanisms that sustain biodiversity and allow a large number of species to coexist. Coexistence concerns inter-individual interactions. Consequently, there is an interest in identifying and quantifying
Nightingale, Glenna Faith   +5 more
core  

Covariation between intraspecific genetic diversity and species diversity within a plant functional group

open access: yes, 2008
1. Species diversity and genetic diversity are fundamental components of biodiversity. A primary goal of biodiversity studies is to explain the distribution of species and alleles in space and time.
Enright, N.J.   +9 more
core   +1 more source

Home - About - Disclaimer - Privacy