Results 91 to 100 of about 181,941 (293)

A putative case of honeyeater‐driven sympatric speciation associated with corolla shape shift resulting in a new New Caledonian Oxera species

open access: yesJournal of Systematics and Evolution, EarlyView.
This study investigates the morphology and ecology of two sympatric species of the Oxera (Lamiaceae) genus in New Caledonia along with their respective putative pollinators. We find that two species of honeyeaters Glycifohia undulata and Philemon diemenensis are likely the preferred pollinators, respectively, of O.
Gildas Gâteblé   +5 more
wiley   +1 more source

Helicity operators for mesons in flight on the lattice

open access: yes, 2012
Motivated by the desire to construct meson-meson operators of definite relative momentum in order to study resonances in lattice QCD, we present a set of single-meson interpolating fields at non-zero momentum that respect the reduced symmetry of a cubic ...
A. Martin   +4 more
core   +1 more source

On the Wave Equation of Meson* [PDF]

open access: bronze, 1955
Mitsuo Taketani, Shoichi Sakata
openalex   +1 more source

Physiological and Behavioural Strategies of Bats From Arid Environments

open access: yesMammal Review, EarlyView.
Deserts are characterized by high ambient temperatures, intense solar radiation and low water availability. Desert bats are smaller, have lower energy expenditures, lower water losses, higher wing aspect ratios and lower wing loadings than bats living in mesic environments.
Irene Conenna   +2 more
wiley   +1 more source

The decay $\rho^{0}\to \pi^{0}\pi^{0}\gamma$ and the role of $\sigma$-meson

open access: yes, 2000
We study the radiative decay $\rho^{0}\to\pi^{0}\pi^{0}\gamma$ within the framework of a phenomenological approach in which the contributions of $\sigma$-meson and $\omega$-meson intermediate states and of the pion-loops are considered.
Gokalp, A., Yilmaz, O.
core   +1 more source

Genome Architecture and Speciation in Plants and Animals

open access: yesMolecular Ecology, EarlyView.
ABSTRACT There have been numerous treatments of specific topics in speciation, but surprisingly few papers have compared patterns and processes of speciation across different organismal groups. In this review, we partially address this gap by asking how variation in genome architecture impacts speciation across the plant and animal kingdoms.
Silu Wang   +3 more
wiley   +1 more source

Arid Soil Bacterial Legacies Improve Drought Resilience of the Keystone Grass, Themeda triandra

open access: yesMolecular Ecology, EarlyView.
ABSTRACT Plant–microbe interactions are critical to ecosystem functioning and impact soil legacies, where plants exert a lasting influence on the microbial and physicochemical conditions of the soils in which they grow. These soil legacies can affect subsequent plant growth and fitness.
Riley J. Hodgson   +11 more
wiley   +1 more source

A Linear Sigma Model with Three Flavors and Vector and Axial-Vector Mesons

open access: yes, 2010
We outline the extension of the globally chirally invariant Nf = 2 linear sigma model with vector and axial-vector degrees of freedom to Nf=3. We present preliminary results concerning the scalar meson masses.Comment: Prepared for the Proceedings of the ...
Giacosa, Francesco   +4 more
core   +1 more source

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