Results 151 to 160 of about 1,810,930 (242)

Origin of compact exoplanetary systems during disk infall

Nature Communications
Exoplanetary systems that contain multiple planets on short-period orbits appear to be prevalent in the current observed exoplanetary population, yet the processes that give rise to such configurations remain poorly understood.
Raluca Rufu, Robin M. Canup
doaj   +1 more source

Failed Oort Clouds and Planetary Migration

, 2000
TeX, 3 pages plus 3 postscript figures. submitted to Ap.
openaire   +2 more sources

The role of internal and international relative deprivation in global migration: DEMIG project paper no. 5 [PDF]

, 2011
This paper analyses the role of internal (within-country) and international (bilateral and global) relative deprivation and absolute deprivation in international migration.
Czaika, Mathias, de Haas, Hein
core  

What drives animal responses to high severity fire? The role of functional traits

Biological Reviews, EarlyView.
ABSTRACT Fire regimes are changing worldwide, with increases in the frequency, extent, and severity of fires posing growing risks to biodiversity. Fire severity – the degree of habitat alteration following fire – strongly influences both immediate survival and long‐term recovery of fauna.
Grace A. Vielleux, Trent D. Penman, Victoria A. Reynolds, Matthew H. Swan   +3 more
wiley   +1 more source

TESS Hunt for Young and Maturing Exoplanets (THYME). XIV. A Comoving-based Age Constraint for KELT-20

The Astronomical Journal
Young stellar moving groups offer unique opportunities to investigate the early evolution of stellar and planetary systems. In continuation of an ongoing effort to age-date compelling planetary systems, we provide an in-depth age analysis of KELT-20—a ...
Adam Distler, Melinda Soares-Furtado, Andrew W. Mann, Adam L. Kraus, Jonathan Gagné, Juliette Becker, Ritvik Sai Narayan, Max Clark, Andrew Vanderburg, Joseph E. Rodriguez, Laura K. Rogers, Ronan Kerr   +11 more
doaj   +1 more source

Migration as cause and consequence of aspirations : DEMIG project paper no. 13 [PDF]

, 2012
This paper aims to disentangle the relationship between aspirations and migration by analysing why Indonesian internal migrants generally have higher aspirations when compared with non-migrants.
Czaika, Mathias
core  

Carrion ecology: concepts, interdisciplinary synthesis, and perspectives

Biological Reviews, EarlyView.
ABSTRACT Carrion is a ubiquitous resource in both terrestrial and aquatic ecosystems, yet it has long been overlooked in ecological research. Over the past two decades, studies on carrion and the many organisms that exploit it have flourished, revealing not only wide‐ranging ecological functions but also significance far beyond ecology.
Marcos Moleón, José A. Sánchez‐Zapata, Travis L. DeVault, Wayne M. Getz, Zebensui Morales‐Reyes, Daniel Redondo‐Gómez, Lara Naves‐Alegre, Solange A. Batista‐Nunes, Esther Sebastián‐González, Juan M. Pérez‐García, Kelly A. Waters, Thijs van Overveld, Craig Smith, Nuria Selva, Thomas A. Schlacher, Graeme Ruxton, Jesús Rodríguez, Martina‐M. Quaggiotto, Paula L. Perrig, Norman Owen‐Smith, Thomas M. Newsome, Isabel Navas, Yoshihiro Nakashima, Ana Mateos, Carlos Martínez‐Carrasco, Daniel Martín‐Vega, Berta Martín‐López, Antoni Margalida, Sergio A. Lambertucci, Adam Kane, Kevin Healy, Akane Hashizume, Antonio J. García‐Fernández, José A. Donázar, M. Eric Benbow, James C. Beasley, Philip S. Barton, Kathleen A. Alexander, Eneko Arrondo   +38 more
wiley   +1 more source

Land birds on atolls: diversity, origin, and function

Biological Reviews, EarlyView.
ABSTRACT Oceanic islands are global hotspots of avian biodiversity and endemism. Their isolation and distinct environmental conditions have uniquely shaped the evolutionary trajectories of island birds, while, in turn, land bird communities have become critical providers of ecological functions to island ecosystems.
Sebastian Steibl, Alex S. Wegmann, Nick D. Holmes, Caitlin E. Andrews, Gérard Rocamora, Simon Ducatez, James C. Russell   +6 more
wiley   +1 more source

Formulation of planetary migration

Formulation of planetary migration
Solar system has experienced planetary migration in its formation stage. Especially, Neptune has an evidence of outward migration in the 3:2 mean motion resonance in the Kuiper belt objects. In the point of view of planetary formation theory, outer ice giant planet needs planetary migration to shortening its growth time.
openaire   +1 more source

Contextualizing immigrant interwave dynamics and the consequences for migration processes: Ukranians in the United Kingdom and the Netherlands [PDF]

, 2011
What drives international migration? Theories of migration networks, migration culture, migration systems and cumulative causation suggest that once a critical threshold level of migrants have settled, migration tends to stimulate the creation of social ...
Kubal, Agnieszka
core