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Latitudinal gradients in population growth do not reflect demographic responses to climate.

Publication ,  Journal Article
DeMarche, ML; Bailes, G; Hendricks, LB; Pfeifer-Meister, L; Reed, PB; Bridgham, SD; Johnson, BR; Shriver, R; Waddle, E; Wroton, H; Doak, DF ...
Published in: Ecological applications : a publication of the Ecological Society of America
March 2021

Spatial gradients in population growth, such as across latitudinal or elevational gradients, are often assumed to primarily be driven by variation in climate, and are frequently used to infer species' responses to climate change. Here, we use a novel demographic, mixed-model approach to dissect the contributions of climate variables vs. other latitudinal or local site effects on spatiotemporal variation in population performance in three perennial bunchgrasses. For all three species, we find that performance of local populations decreases with warmer and drier conditions, despite latitudinal trends of decreasing population growth toward the cooler and wetter northern portion of each species' range. Thus, latitudinal gradients in performance are not predictive of either local or species-wide responses to climate. This pattern could be common, as many environmental drivers, such as habitat quality or species' interactions, are likely to vary with latitude or elevation, and thus influence or oppose climate responses.

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Published In

Ecological applications : a publication of the Ecological Society of America

DOI

ISSN

1051-0761

Publication Date

March 2021

Volume

31

Issue

2

Start / End Page

e2242

Related Subject Headings

  • Population Growth
  • Ecosystem
  • Ecology
  • Climate Change
  • 41 Environmental sciences
  • 31 Biological sciences
  • 30 Agricultural, veterinary and food sciences
  • 07 Agricultural and Veterinary Sciences
  • 06 Biological Sciences
  • 05 Environmental Sciences
 

Citation

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DeMarche, M. L., Bailes, G., Hendricks, L. B., Pfeifer-Meister, L., Reed, P. B., Bridgham, S. D., … Morris, W. F. (2021). Latitudinal gradients in population growth do not reflect demographic responses to climate. Ecological Applications : A Publication of the Ecological Society of America, 31(2), e2242. https://doi.org/10.1002/eap.2242
DeMarche, Megan L., Graham Bailes, Lauren B. Hendricks, Laurel Pfeifer-Meister, Paul B. Reed, Scott D. Bridgham, Bart R. Johnson, et al. “Latitudinal gradients in population growth do not reflect demographic responses to climate.Ecological Applications : A Publication of the Ecological Society of America 31, no. 2 (March 2021): e2242. https://doi.org/10.1002/eap.2242.
DeMarche ML, Bailes G, Hendricks LB, Pfeifer-Meister L, Reed PB, Bridgham SD, et al. Latitudinal gradients in population growth do not reflect demographic responses to climate. Ecological applications : a publication of the Ecological Society of America. 2021 Mar;31(2):e2242.
DeMarche, Megan L., et al. “Latitudinal gradients in population growth do not reflect demographic responses to climate.Ecological Applications : A Publication of the Ecological Society of America, vol. 31, no. 2, Mar. 2021, p. e2242. Epmc, doi:10.1002/eap.2242.
DeMarche ML, Bailes G, Hendricks LB, Pfeifer-Meister L, Reed PB, Bridgham SD, Johnson BR, Shriver R, Waddle E, Wroton H, Doak DF, Roy BA, Morris WF. Latitudinal gradients in population growth do not reflect demographic responses to climate. Ecological applications : a publication of the Ecological Society of America. 2021 Mar;31(2):e2242.
Journal cover image

Published In

Ecological applications : a publication of the Ecological Society of America

DOI

ISSN

1051-0761

Publication Date

March 2021

Volume

31

Issue

2

Start / End Page

e2242

Related Subject Headings

  • Population Growth
  • Ecosystem
  • Ecology
  • Climate Change
  • 41 Environmental sciences
  • 31 Biological sciences
  • 30 Agricultural, veterinary and food sciences
  • 07 Agricultural and Veterinary Sciences
  • 06 Biological Sciences
  • 05 Environmental Sciences