R
Robert A. Andrus
Researcher at University of Colorado Boulder
Publications - 34
Citations - 545
Robert A. Andrus is an academic researcher from University of Colorado Boulder. The author has contributed to research in topics: Biology & Bark beetle. The author has an hindex of 7, co-authored 23 publications receiving 232 citations. Previous affiliations of Robert A. Andrus include University of Wisconsin-Madison & Washington State University.
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Journal ArticleDOI
Moisture availability limits subalpine tree establishment.
TL;DR: Counter to expected and observed increases in tree establishment with climate warming in maritime subalpine forests, the results show that recruitment declines will likely occur across the core of moisture-limited sub alpine tree ranges as warming drives increased moisture deficits.
Journal ArticleDOI
Fire severity unaffected by spruce beetle outbreak in spruce-fir forests in southwestern Colorado.
TL;DR: The finding that beetle infestation did not alter fire severity is consistent with previous retrospective studies examining fire activity following other bark beetle outbreaks and reiterates the overriding influence of climate that creates conditions conducive to large, high-severity fires in the subalpine zone of Colorado.
Journal ArticleDOI
Continent-wide tree fecundity driven by indirect climate effects.
James S. Clark,James S. Clark,Robert A. Andrus,Mélaine Aubry-Kientz,Yves Bergeron,Michał Bogdziewicz,Don C. Bragg,Dale G. Brockway,Natalie L. Cleavitt,Susan L. Cohen,Benoît Courbaud,Robert Daley,Adrian J. Das,Michael Dietze,Timothy J. Fahey,Istem Fer,Jerry F. Franklin,Catherine A. Gehring,Gregory S. Gilbert,Cathryn H. Greenberg,Qinfeng Guo,Janneke HilleRisLambers,Inés Ibáñez,Jill F. Johnstone,Christopher L. Kilner,Johannes M. H. Knops,Walter D. Koenig,Georges Kunstler,Jalene M. LaMontagne,Kristin Legg,Jordan Luongo,James A. Lutz,Diana Macias,Eliot J. B. McIntire,Yassine Messaoud,Christopher M. Moore,Emily V. Moran,Jonathan Myers,Orrin Myers,Chase L. Nuñez,Robert R. Parmenter,Sam Pearse,Scott M. Pearson,Renata Poulton-Kamakura,Ethan Ready,Miranda D. Redmond,C. D. Reid,Kyle C. Rodman,C. Lane Scher,William H. Schlesinger,Amanda M. Schwantes,Erin Shanahan,Shubhi Sharma,Michael A. Steele,Nathan L. Stephenson,Samantha Sutton,Jennifer J. Swenson,Margaret Swift,Thomas T. Veblen,Amy V. Whipple,Thomas G. Whitham,Andreas P. Wion,Kai Zhu,Roman Zlotin +63 more
TL;DR: The authors found from a synthesis of tree species in North America that climate-condition interactions dominate responses through two pathways: effects of growth that depend on climate, and effects of climate that depends on tree size.
Journal ArticleDOI
Is there tree senescence? The fecundity evidence
Tong Qiu,Marie-Claire Aravena,Robert A. Andrus,Davide Ascoli,Yves Bergeron,Roberta Berretti,Michał Bogdziewicz,Thomas Boivin,Raúl Bonal,Thomas Caignard,Rafael Calama,J. Julio Camarero,Connie J. Clark,Benoît Courbaud,Sylvain Delzon,Sergio Calderón,William Farfan-Rios,Catherine A. Gehring,Gregory S. Gilbert,Cathryn H. Greenberg,Qinfeng Guo,Janneke Hille Ris Lambers,Kazuhiko Hoshizaki,Inés Ibáñez,Valentin Journé,Christopher L. Kilner,Richard K. Kobe,Walter D. Koenig,Georges Kunstler,Jalene M. LaMontagne,Mateusz Ledwoń,James A. Lutz,Renzo Motta,Jonathan Myers,Thomas A. Nagel,Chase L. Nuñez,Ian S. Pearse,Łukasz Piechnik,John R. Poulsen,Renata Poulton-Kamakura,Miranda D. Redmond,C. D. Reid,Kyle C. Rodman,C. Lane Scher,Harald Schmidt Van Marle,Barbara Seget,Shubhi Sharma,Miles R. Silman,Jennifer J. Swenson,Margaret Swift,María Uriarte,Giorgio Vacchiano,Thomas T. Veblen,Amy V. Whipple,Thomas G. Whitham,Andreas P. Wion,S. Joseph Wright,Kai Zhu,Jess K. Zimmerman,Magdalena Żywiec,James S. Clark,James S. Clark +61 more
TL;DR: In this article, the authors combined global fecundity data, including a substantial representation of large trees, and compared size-fecundity relationships against traditional allometric scaling with diameter and two models based on crown architecture.