Results 41 to 50 of about 33,268 (232)

Quantifying the unrecorded loss of avian phylogenetic diversity

Ecography, EarlyView.
Humans have drastically reduced avian diversity, with the majority of extinctions occurring on islands. Previous studies have quantified various aspects of this decline, including both taxonomic and phylogenetic diversity loss due to recorded extinctions.
Søren Faurby, T. J. Matthews, K. A. Triantis, F. Sayol   +3 more
wiley   +1 more source

On the product formula and convolution associated with the index Whittaker transform

, 2019
We deduce a product formula for the Whittaker $W$ function whose kernel does not depend on the second parameter. Making use of this formula, we define the positivity-preserving convolution operator associated with the index Whittaker transform, which is ...
Guerra, Manuel, Sousa, Rúben, Yakubovich, Semyon   +2 more
core   +1 more source

Alpha, beta and gamma diversity in relatively natural, mixed and transformed landscape scenarios

Ecography, EarlyView.
Biodiversity losses and biotic homogenisation associated with human‐induced land‐cover changes are key issues for ecology. However, the effects of human‐caused land‐use changes on biodiversity change at the landscape scale are not well understood. Combining the PREDICTS global biodiversity database with MODIS satellite‐based land cover from 2001 to ...
Shuyu Deng, Colin M. Beale, Chris D. Thomas   +2 more
wiley   +1 more source

On the size of p-adic Whittaker functions

, 2018
In this paper we tackle a question raised by N. Templier and A. Saha concerning the size of Whittaker new vectors appearing in infinite dimensional representations of GL(2) over non-archimedean fields.
Assing, Edgar
core   +1 more source

Moss diatoms show regional structuring, high potential endemism, and an inverse latitudinal diversity gradient in the Arctic

Ecography, EarlyView.
Microorganisms perform essential functions in Arctic terrestrial ecosystems. Yet, their ecology and biogeography are poorly understood, despite being necessary to predict microbial responses to future climate change. Here, we provide the first large‐scale floristic and biogeographic study of the moss diatom flora in the tundra regions of the North ...
Charlotte Goeyers, Elie Verleyen, Bart Van de Vijver, Tyler J. Kohler, Petra Klímová, S. Robbert Gradstein, Koen Sabbe   +6 more
wiley   +1 more source

Some transforms, Riemann–Liouville fractional operators, and applications of newly extended M–L (p, s, k) function

Open Physics
There are several problems in physics, such as kinetic energy equation, wave equation, anomalous diffusion process, and viscoelasticity that are described well in the fractional differential equation form.
Ayub Umbreen, Mubeen Shahid, Abbas Amir, Khan Aziz, Abdeljawad Thabet   +4 more
doaj   +1 more source

Failure to replicate effects of parent‐delivered early language intervention: Evidence from a randomised controlled trial with implications for universal language intervention

JCPP Advances, EarlyView.
Abstract Background Parent‐led, preschool language interventions may help to mitigate the risk of poor language and literacy outcomes associated with lower socioeconomic status. This study builds on two previous evaluations of a parent‐led early language teaching programme, which demonstrated mixed findings.
Kelly Burgoyne, Laura Boundy, Paivi Eerola, Qing Zhang, Jochen Einbeck, Helen Cramman, Vic Menzies   +6 more
wiley   +1 more source

Geochronology of the Whittlesey sedimentary succession, eastern England: The ‘Pompeii’ of the British late Middle Pleistocene to Holocene record

Journal of Quaternary Science, EarlyView.
Abstract The sedimentary succession at Whittlesey preserves a unique British late Middle Pleistocene to Holocene record back to a time equivalent to at least marine oxygen isotope stage 8 (ca. 250 ka). This study builds on previously published sedimentology, geochronology and palaeoecology results to establish 20 sedimentary facies associations, with ...
H. E. Langford, M. D. Bateman, R. M. Briant, D. J. Horne   +3 more
wiley   +1 more source

Relativistic wave and Green's functions for hydrogen--like ions

, 2008
The \textsc{Greens} library is presented which provides a set of C++ procedures for the computation of the (radial) Coulomb wave and Green's functions. Both, the nonrelativistic as well as relativistic representations of these functions are supported by ...
Fritzsche, Stephan, Koval, Peter
core   +3 more sources

The native flora of the Redberry Lake Biosphere Region (Saskatchewan, Canada): taxonomy, biogeography, habitats and conservation

Nordic Journal of Botany, EarlyView.
This study reports for the first time a checklist of native vascular plants and provides a comprehensive analysis of the flora of the Redberry Lake Biosphere Region (RLBR) in the province of Saskatchewan, Canada. To complete an inventory of the regional flora, I conducted intensive field investigations during 2010–2025 and employed detailed examination
Vladimir Kricsfalusy
wiley   +1 more source