Results 41 to 50 of about 371,826 (345)

Phylogeny of Hawaiian Melicope (Rutaceae): RAD-seq Resolves Species Relationships and Reveals Ancient Introgression

Frontiers in Plant Science, 2019
Hawaiian Melicope are one of the major adaptive radiations of the Hawaiian Islands comprising 54 endemic species. The lineage is monophyletic with an estimated crown age predating the rise of the current high islands.
Claudia Paetzold, Kenneth R. Wood, Deren A. R. Eaton, Deren A. R. Eaton, Warren L. Wagner, Marc S. Appelhans, Marc S. Appelhans   +6 more
doaj   +1 more source

Testing the adaptive radiation hypothesis for the lemurs of Madagascar [PDF]

Royal Society Open Science, 2017
Lemurs, the diverse, endemic primates of Madagascar, are thought to represent a classic example of adaptive radiation. Based on the most complete phylogeny of living and extinct lemurs yet assembled, I tested predictions of adaptive radiation theory by ...
James P. Herrera
doaj   +1 more source

Star Formation with Adaptive Mesh Refinement Radiation Hydrodynamics [PDF]

, 2010
I provide a pedagogic review of adaptive mesh refinement (AMR) radiation hydrodynamics (RHD) methods and codes used in simulations of star formation, at a level suitable for researchers who are not computational experts.
Commerçon, Fromang, González, Kahn, Kuiper, Mark R. Krumholz, Mihalas, Norman, Rijkhorst, Yorke   +9 more
core   +1 more source

Rapid radiations underlie most of the known diversity of life

Frontiers in Ecology and Evolution
Rapid radiations, including adaptive radiations, are of considerable interest to evolutionary biologists, in large part because they are thought to underlie much of the species diversity of life.
John J. Wiens, Daniel S. Moen
doaj   +1 more source

“And if you gaze long into an abyss, the abyss gazes also into thee”: four morphs of Arctic charr adapting to a depth gradient in Lake Tinnsjøen

Evolutionary Applications, 2020
The origin of species is a central topic in biology. Ecological speciation might be a driver in adaptive radiation, providing a framework for understanding mechanisms, level, and rate of diversification. The Arctic charr Salvelinus alpinus L.
Kjartan Østbye, Marius Hagen Hassve, Ana‐Maria Peris Tamayo, Mari Hagenlund, Thomas Vogler, Kim Præbel   +5 more
doaj   +1 more source

Trophic Diversification Out of Ancestral Specialization: An Example from a Radiating African Cyprinid Fish (Genus Garra)

Diversity, 2022
Trophic resource partitioning is one of the main ecological mechanisms of adaptive radiation. The Garra is a highly specialized periphyton feeder that has widened jaws equipped with a horny cutting scraper.
Aleksandra S. Komarova, Alexander S. Golubtsov, Boris A. Levin   +2 more
doaj   +1 more source

Ecological significance of newly recorded halophilic Pharyngomonas kirbyi from two Korean solar salterns

Journal of Ecology and Environment
Background: Hypersaline environments (> 40 practical salinity units [PSU]) represent some of the most extreme conditions on Earth, supporting a variety of halophilic and halotolerant bacteria, archaea, and protists.
Hyeon Been Lee, Jong Soo Park
doaj   +1 more source

CASTRO: A New Compressible Astrophysical Solver. II. Gray Radiation Hydrodynamics

, 2011
We describe the development of a flux-limited gray radiation solver for the compressible astrophysics code, CASTRO. CASTRO uses an Eulerian grid with block-structured adaptive mesh refinement based on a nested hierarchy of logically-rectangular variable ...
A. Almgren, A. Burrows, Almgren, Burrows, CASTRO User Guide., Fryxell, Hayes, Hayes, Hubeny, hypre Code Project., J. Bell, Krumholz, L. Howell, Lowrie, McCormick, Mihalas, Pomraning, Swesty, Turner, van der Holst, W. Zhang, Zel’Dovich   +21 more
core   +1 more source

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen, Calogero Virgone, Antje Redlich, Michael Abele, Ricardo Lopez‐Almaraz, Tal Ben‐Ami, Ewa Bien, Gianni Bisogno, Maja Mazic Cesen, Andrea Ferrari, Malgorzata A. Krawczyk, Yves Reguerre, Dominik T. Schneider, Ines B. Brecht, Charlotte Rigaud, Bilgehan Yalcin, Rainer Claus, Christian Vokuhl, Constantin Lapa, Jörg Fuchs, Segolene Hescot, Thomas Walter, Julien Hadoux, Daniel Orbach   +23 more
wiley   +1 more source

Time Toxicity in Wilms Tumor: Quantifying the Burden of Healthcare Interaction in the First Year After Diagnosis

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Wilms tumor (WT) treatment imposes a significant time burden on patients and their families. Time toxicity is a patient‐centered metric that quantifies the burden of healthcare interaction. We sought to define time toxicity in the first year after diagnosis of WT and hypothesized that it would increase as tumor stage and treatment ...
Caleb Q. Ashbrook, Veerain Gupta, Nicholas J. Clark, Vijay Rings, Lauren E. Corona, Douglass B. Clayton, Daniel J. Benedetti   +6 more
wiley   +1 more source