Climate complexity in the migratory cycle of Ammodramus bairdii

PloS One
Alexander Peña-PenicheOctavio R Rojas-Soto

Abstract

One way to understand the ecology of bird migration is to analyze how birds use their ecological niche during their annual cycle. Ammodramus bairdii is a grassland specialist sparrow that breeds in southern Canada and the northern U.S.A. and winters in the Chihuahuan Desert. A continuous and alarming decrease of its populations has been observed over the last 50 years, and studying its seasonal distribution and associated climatic niches could help improve strategies for its conservation. We analyzed the temporal use of its Grinnellian niche (GN) -set of environmental conditions under which a species can establish and persist; in this case the climatic attributes-. We modeled the GN for the reproductive and winter seasons and projected them onto each other (inter-prediction), and also onto transient migratory periods. To measure niche breadth and their overlap, minimum convex polygons (MCP) were calculated for the climatic space. The niches of each of the two seasons were tested for similarity using the PCA axes of climatic variables. The geographic areas with optimal, suboptimal and marginal conditions were identified, based on the distance to the centroid of the GN. The models for each season revealed no geographic inter-pred...Continue Reading

References

Aug 24, 1999·Science·A T PetersonV Sanchez-Cordero
Apr 21, 2001·Journal of Theoretical Biology·T Alerstam
Apr 12, 2002·Nature·A Townsend PetersonDavid R B Stockwell
Aug 13, 2004·Proceedings. Biological Sciences·Enrique Martínez-MeyerAdolfo G Navarro-Sigüenza
Aug 14, 2008·Biology Letters·Anders P TøttrupCarsten Rahbek
Aug 30, 2008·Evolution; International Journal of Organic Evolution·Dan L WarrenMichael Turelli
Feb 14, 2009·Science·Bridget J M StutchburyVsevolod Afanasyev
Oct 7, 2009·Proceedings of the National Academy of Sciences of the United States of America·Morgan W TingleyCraig Moritz
Oct 7, 2009·Proceedings of the National Academy of Sciences of the United States of America·Jorge Soberón, Miguel Nakamura
Oct 7, 2009·Proceedings of the National Academy of Sciences of the United States of America·Robert K Colwell, Thiago F Rangel
Jan 16, 2010·Science·L McKinnonJ Bêty
Nov 9, 2012·Biology Letters·Enrique Martínez-MeyerCarlos Yáñez-Arenas
May 15, 2013·The American Naturalist·Cecilia NilssonThomas Alerstam
Jan 1, 2014·Evolution; International Journal of Organic Evolution·Andrés Lira-Noriega, Joseph D Manthey
Feb 13, 2016·Proceedings. Biological Sciences·Camila GómezCarlos Daniel Cadena
Apr 22, 2016·Ecology and Evolution·Heidi Pérez-MorenoOctavio Rojas-Soto
Sep 28, 2017·Science Advances·Robert M Zink, Aubrey S Gardner

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Methods Mentioned

BETA
PCA

Software Mentioned

Ecospat
alphahull
EnvNicheR
WorldClim
R
ENM
Tool for Partial - ROC
GARP

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