StralbergBayneCummingEtAl2015

Reference

Stralberg, D., Bayne, E.M., Cumming, S.G., Solymos, P., Song, S.J., Schmiegelow, F.K.A. (2015) Conservation of future boreal forest bird communities considering lags in vegetation response to climate change: a modified refugia approach. Diversity and Distributions, 21(9):1112-1128. (URL )

Abstract

AimSpecies and ecosystems may be unable to keep pace with rapid climate change projected for the 21st century. We evaluated an underexplored dimension of the mismatch between climate and biota: limitations to forest growth and succession affecting habitat suitability. Our objective was to inform continental-scale conservation for boreal songbirds under disequilibria between climate, vegetation and fauna.LocationBoreal and southern arctic ecoregions of North America.MethodsWe used forest inventory and avian survey data to classify 53 species by seral-stage affinity and applied these to generate alternative projections of changes in species' core habitat distributions based on different vegetation lag-time assumptions. We used our seral stage-modified refugia approach and the Zonation algorithm to identify multispecies boreal conservation priorities over the 21st century. We evaluated the sensitivity of land rankings to seral-stage affinity and species' weights and assessed the conservation value of the existing protected areas network compared to Zonation results.ResultsEnd-of-century projected changes in songbird distribution were reduced by up to 169% when vegetation lags were considered. Zonation land rankings based on unconstrained climate projections were concentrated at high latitudes, whereas those based on strict and modified refugia scenarios were concentrated in coastal and high-elevation areas, as well as biome transition zones, which were fairly consistent over time and species weights. The existing protected areas network covering 14% of the study area was estimated to conserve 12–14% of baseline avian biodiversity across time periods and scenarios, compared to 16–25% for top-ranked Zonation areas.Main conclusionsFor some boreal songbirds, limits to forest growth and succession may result in dramatic reductions in suitable habitat over the next century. Our seral stage-adjusted approach provides conservative and efficient boreal conservation priorities anchored around climatic macrorefugia that are robust to century-long climate change and complement the current protected areas network.

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@ARTICLE { StralbergBayneCummingEtAl2015,
    AUTHOR = { Stralberg, D. and Bayne, E.M. and Cumming, S.G. and Solymos, P. and Song, S.J. and Schmiegelow, F.K.A. },
    TITLE = { Conservation of future boreal forest bird communities considering lags in vegetation response to climate change: a modified refugia approach },
    JOURNAL = { Diversity and Distributions },
    YEAR = { 2015 },
    VOLUME = { 21 },
    NUMBER = { 9 },
    PAGES = { 1112--1128 },
    ABSTRACT = { AimSpecies and ecosystems may be unable to keep pace with rapid climate change projected for the 21st century. We evaluated an underexplored dimension of the mismatch between climate and biota: limitations to forest growth and succession affecting habitat suitability. Our objective was to inform continental-scale conservation for boreal songbirds under disequilibria between climate, vegetation and fauna.LocationBoreal and southern arctic ecoregions of North America.MethodsWe used forest inventory and avian survey data to classify 53 species by seral-stage affinity and applied these to generate alternative projections of changes in species' core habitat distributions based on different vegetation lag-time assumptions. We used our seral stage-modified refugia approach and the Zonation algorithm to identify multispecies boreal conservation priorities over the 21st century. We evaluated the sensitivity of land rankings to seral-stage affinity and species' weights and assessed the conservation value of the existing protected areas network compared to Zonation results.ResultsEnd-of-century projected changes in songbird distribution were reduced by up to 169% when vegetation lags were considered. Zonation land rankings based on unconstrained climate projections were concentrated at high latitudes, whereas those based on strict and modified refugia scenarios were concentrated in coastal and high-elevation areas, as well as biome transition zones, which were fairly consistent over time and species weights. The existing protected areas network covering 14% of the study area was estimated to conserve 12–14% of baseline avian biodiversity across time periods and scenarios, compared to 16–25% for top-ranked Zonation areas.Main conclusionsFor some boreal songbirds, limits to forest growth and succession may result in dramatic reductions in suitable habitat over the next century. Our seral stage-adjusted approach provides conservative and efficient boreal conservation priorities anchored around climatic macrorefugia that are robust to century-long climate change and complement the current protected areas network. },
    DOI = { 10.1111/ddi.12356 },
    ISSN = { 1472-4642 },
    KEYWORDS = { Boreal forest, climate change, conservation planning, refugia, songbirds, species distribution models },
    OWNER = { Luc },
    TIMESTAMP = { 2016.08.16 },
    URL = { http://dx.doi.org/10.1111/ddi.12356 },
}

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