Abstract
Biodiversity in tropical regions is particularly high and may be highly sensitive to climate change1,2. Unfortunately, a lack of long-term data hampers understanding of how tropical species, especially animals, may react to projected environmental changes. The amount and timing of rainfall is key to the function of tropical ecosystems and, although specific model predictions differ3,4, there is general agreement that rainfall regimes will change over large areas of the tropics5,6. Here, we estimate associations between dry season length (DSL) and the population biology of 20 bird species sampled in central Panama over a 33-year period. Longer dry seasons decreased the population growth rates and viability of nearly one-third of the species sampled. Simulations with modest increases in DSL suggest that consistently longer dry seasons will change the structure of tropical bird communities. Such change may occur even without direct loss of habitat—a finding with fundamental implications for conservation planning. Systematic changes in rainfall regime may threaten some populations and communities of tropical animals even in large tracts of protected habitat. These findings suggest the need for collaboration between climate scientists and conservation biologists to identify areas where rainfall regimes will be able to plausibly maintain wildlife populations.
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References
Wormworth, J. & Sekercioglu, C. H. Winged Sentinels: Birds and Climate Change (Cambridge Univ. Press, 2011).
Janzen, D. H. Why are mountain passes higher in the tropics? Am. Nat. 101, 233–249 (1967).
Chadwick, R., Good, P., Martin, G. & Rowell, D. P. Large rainfall changes consistently projected over substantial areas of tropical land. Nat. Clim. Change 6, 177–181 (2016).
Kent, C., Chadwick, R. & Rowell, D. P. Understanding uncertainties in future projections of seasonal tropical precipitation. J. Clim. 28, 4390–4413 (2015).
Feng, X., Porporato, A. & Rodriguez-Iturbe, I. Changes in rainfall seasonality in the tropics. Nat. Clim. Change 3, 811–815 (2013).
Fu, R. Global warming-accelerated drying in the tropics. Proc. Natl Acad. Sci. USA 112, 3593–3594 (2015).
Parmesan, C. Ecological and evolutionary responses to recent climate change. Annu. Rev. Ecology Evol. Systematics 37, 637–669 (2006).
Norberg, J., Urban, M. C., Vellend, M., Klausmeier, C. A. & Loeuille, N. Eco-evolutionary responses of biodiversity to climate change. Nat. Clim. Change 2, 747–751 (2012).
Chan, W.-P. et al. Seasonal and daily climate variation have opposite effects on species elevational range size. Science 351, 1437–1439 (2016).
Moritz, C. & Agudo, R. The future of species under climate change: resilience or decline? Science 341, 504–508 (2013).
Ghalambor, C. K., Huey, R. B., Martin, P. R., Tewksbury, J. J. & Wang, G. Are mountain passes higher in the tropics? Janzen’s hypothesis revisited. Integr. Comp. Biol. 46, 5–17 (2006).
Rosenzweig, C. et al. Attributing physical and biological impacts to anthropogenic climate change. Nature 453, 353–357 (2008).
Bonebrake, T. C. Conservation implications of adaptation to tropical climates from a historical perspective. J. Biogeogr. 40, 409–414 (2013).
Hilker, T. et al. Vegetation dynamics and rainfall sensitivity of the Amazon. Proc. Natl Acad. Sci. USA 111, 16041–16046 (2014).
Phillips, O. L. et al. Drought sensitivity of the Amazon rainforest. Science 323, 1344–1347 (2009).
Pearce-Higgins, J. W. et al. Geographical variation in species’ population responses to changes in temperature and precipitation. Proc. R. Soc. B http://dx.doi.org/10.1098/rspb.2015.1561 (2015).
Bennett, J. M., Clarke, R. H., Horrocks, G. F. B., Thomson, J. R. & MacNally, R. Climate drying amplifies the effects of land-use change and interspecific interactions on birds. Landscape Ecol. 30, 2031–2043 (2015).
Condit, R., Engelbrecht, B. M. J., Pino, D., Perez, R. & Turner, B. L. Species distributions in response to individual soil nutrients and seasonal drought across a community of tropical trees. Proc. Natl Acad. Sci. USA 110, 5064–5068 (2013).
Meir, P. & Woodward, F. I. Amazonian rain forests and drought: response and vulnerability. New Phytol. 187, 553–557 (2010).
Wright, S. J., Carrasco, C., Calderon, O. & Paton, S. The El Nino Southern Oscillation variable fruit production, and famine in a tropical forest. Ecology 80, 1632–1647 (1999).
Sekercioglu, C. H., Primack, R. B. & Wormworth, J. The effects of climate change on tropical birds. Biol. Cons. 148, 1–18 (2012).
Mills, L. S. Conservation of Wildlife Populations: Demography, Genetics, and Management 2nd edn (Wiley-Blackwell, 2012).
Styrsky, J. N. & Brawn, J. D. Annual fecundity of a neotropical bird during years of high and low rainfall. Condor 113, 194–199 (2011).
Sheldon, K. S., Yang, S. & Tewksbury, J. J. Climate change and community disassembly: impacts of warming on tropical and temperate montane community structure. Ecol. Lett. 14, 1191–1200 (2011).
Lawrence, D. & Vandecar, K. Effects of tropical deforestation on climate and agriculture. Nat. Clim. Change 5, 27–36 (2015).
Sodhi, N. S., Sekercioglu, C. H., Barlow, J. & Robinson, S. K. Conservation of Tropical Birds (John Wiley & Sons, 2011).
Van Bael, S. A., Brawn, J. D. & Robinson, S. K. Birds defend trees from herbivores in a Neotropical forest canopy. Proc. Natl Acad. Sci. USA 100, 8304–8307 (2003).
Baker, D. J., Hartley, A. J., Butchart, S. H. M. & Willis, S. G. Choice of baseline climate data impacts projected species’ responses to climate change. Glob. Change Biol. 22, 2392–2404 (2016).
Fu, R. et al. Increased dry-season length over southern Amazonia in recent decades and its implication for future climate projection. Proc. Natl Acad. Sci. USA 110, 18110–18115 (2013).
Reside, A. E. et al. Characteristics of climate change refugia for Australian biodiversity. Aust. Ecol. 39, 887–897 (2014).
Robinson, W. D., Brawn, J. D. & Robinson, S. K. Forest bird community structure in central Panama: influence of spatial scale and biogeography. Ecol. Monogr. 70, 209–235 (2000).
Williams, B. K., Nichols, J. D. & Conroy, M. J. Analysis and Management of Animal Populations (Academic, 2002).
Pradel, R., Hines, J. E., Lebreton, J. D. & Nichols, J. D. Capture-recapture survival models taking account of transients. Biometrics 53, 60–72 (1997).
Brawn, J. D., Karr, J. R., Nichols, J. D. & Robinson, W. D. Demography of tropical birds in Panama: how do transients affect estimates of survival rates? Proc. Int. Ornithol. Congr. 22, 297–305 (1999).
Choquet, R., Lebreton, J.-D., Gimenez, O., Reboulet, A.-M. & Pradel, R. U-CARE: utilities for performing goodness of fit tests and manipulating CApture-REcapture data. Ecography 32, 1071–1074 (2009).
Pradel, R., Choquet, R., Lima, M., Merritt, J. & Crespin, L. Estimating population growth rate from capture-recapture data in presence of capture heterogeneity. J. Agric. Biol. Environ. Statist. 15, 248–258 (2010).
Pledger, S., Pollock, K. H. & Norris, J. L. Open capture-recapture models with heterogeneity: I. Cormack-Jolly-Seber model. Biometrics 59, 786–794 (2003).
White, G. C. & Burnham, K. P. Program MARK: survival estimation from populations of marked animals. Bird Study 46, 120–139 (1999).
White, G. C., Burnham, K. P. & Barker, R. J. in Modeling Demographic Processes in Marked Populations (eds Thomson, D. L., Cooch, E. G. & Conroy, M. J.) 1119–1127 (Springer, 2009).
Raftery, A. E. & Lewis, S. M. One long run with diagnostics: implementation strategies for Markov Chain Monte Carlo. Stat. Sci. 7, 493–497 (1992).
Gelman, A. in Markov Chain Monto Carlo in Practice (eds Gilks, W. R., Richardson, S. & Spiegelhalter, D. J.) 131–143 (Chapman & Hall/CRC Interdisciplinary Statistics, 1996).
Plummer, M., Best, N., Cowles, K. & Vines, K. CODA: convergence diagnosis and output analysis for MCMC. R. News 6, 7–11 (2006).
R Core Team R: A Language and Environment for Statistical Computing. (2014); http://www.R-project.org
Larkin, M. A. et al. Clustal W and clustal X version 2.0. Bioinformatics 23, 2947–2948 (2007).
Vaidya, G., Lohman, D. J. & Meier, R. SequenceMatrix: concatenation software for the fast assembly of multi-gene datasets with character set and codon information. Cladistics 27, 171–180 (2011).
Milne, I. et al. TOPALi v2: a rich graphical interface for evolutionary analyses of multiple alignments on HPC clusters and multi-core desktops. Bioinformatics 25, 126–127 (2009).
Guindon, S. & Gascuel, O. A simple, fast, and accurate algorithm to estimate large phylogenies by maximum likelihood. Syst. Biol. 52, 696–704 (2003).
Stamatakis, A. RAxML-VI-HPC: maximum likelihood-based phylogenetic analyses with thousands of taxa and mixed models. Bioinformatics 22, 2688–2690 (2006).
Silvestro, D. & Michalak, I. raxmlGUI: a graphical front-end for RAxML. Organ. Divers. Evol. 12, 335–337 (2012).
Hackett, S. J. et al. A phylogenomic study of birds reveals their evolutionary history. Science 320, 1763–1768 (2008).
Moyle, R. G. et al. Phylogeny and phylogenetic classification of the antbirds, ovenbirds, woodcreepers, and allies (Aves: Passeriformes: infraorder Furnariides). Cladistics 25, 386–405 (2009).
Tello, J. G., Moyle, R. G., Marchese, D. J. & Cracraft, J. Phylogeny and phylogenetic classification of the tyrant flycatchers, cotingas, manakins, and their allies (Aves: Tyrannides). Cladistics 25, 429–467 (2009).
Revell, L. J. Phytools: an R package for phylogenetic comparative biology (and other things). Methods Ecol. Evol. 3, 217–223 (2012).
Paradis, E. Analyses of Phylogenetics and Evolution with R (Springer, 2006).
nlme: Linear and Nonlinear Mixed Effects Models. R package version 3.1-120 (2015).
Boettiger, C., Coop, G. & Ralph, P. Is your phylogeny informative? Measuring the power of comparative methods. Evolution 66, 2240–2251 (2012).
Pagel, M. Inferring the historical patterns of biological evolution. Nature 401, 877–884 (1999).
Acknowledgements
We thank the Ministry of Environment (MiAmbiente, formerly ‘ANAM’) for permission to work in the Republic of Panama and The Smithsonian Tropical Research Institute (especially G. Angehr, S. Patton, R. Urriola and S. J. Wright) for logistical support and rainfall data. All procedures received approval from the University of Illinois’ Institutional Animal Care and Use Committee and the Smithsonian Institute. We thank J. R. Karr for data sharing, vision, and support. R. Ricklefs provided feedback. We acknowledge funding from the National Science Foundation (IBN-0212587), the US Department of Defense Legacy Resource Program, the US Department of Agriculture National Institute of Food and Agriculture (Accession #875-370), the University of Illinois, and the Environmental Science Program from the Smithsonian Tropical Research Institute.
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J.D.B. designed the project, conducted fieldwork, and contributed to the comparative analyses; C.E.T. conducted field sampling; T.J.B. contributed the demographic analyses and designed the simulations; M.S. and N.D.S. contributed the comparative analyses; J.D.B., T.J.B. and C.E.T. wrote the paper. All authors provided intellectual input, and read and approved the manuscript.
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Brawn, J., Benson, T., Stager, M. et al. Impacts of changing rainfall regime on the demography of tropical birds. Nature Clim Change 7, 133–136 (2017). https://doi.org/10.1038/nclimate3183
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DOI: https://doi.org/10.1038/nclimate3183
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