AffiliationUniv Arizona, Desert Lab Tumamoc Hill
MetadataShow full item record
CitationMartin JM, Mead JI, Barboza PS. Bison body size and climate change. Ecol Evol. 2018;8:4564–4574. https://doi.org/10.1002/ece3.4019
JournalECOLOGY AND EVOLUTION
Rights© 2018 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. This is an open access article under the terms of the Creative Commons Attribution License.
Collection InformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at firstname.lastname@example.org.
AbstractThe relationship between body size and temperature of mammals is poorly resolved, especially for large keystone species such as bison (Bison bison). Bison are well represented in the fossil record across North America, which provides an opportunity to relate body size to climate within a species. We measured the length of a leg bone (calcaneal tuber, DstL) in 849 specimens from 60 localities that were dated by stratigraphy and C-14 decay. We estimated body mass (M) as M=(DstL/11.49)(3). Average annual temperature was estimated from O-18 values in the ice cores from Greenland. Calcaneal tuber length of Bison declined over the last 40.000 years, that is, average body mass was 37% larger (910 +/- 50kg) than today (665 +/- 21kg). Average annual temperature has warmed by 6 degrees C since the Last Glacial Maximum (similar to 24-18 kya) and is predicted to further increase by 4 degrees C by the end of the 21st century. If body size continues to linearly respond to global temperature, Bison body mass will likely decline by an additional 46%, to 357 +/- 54kg, with an increase of 4 degrees C globally. The rate of mass loss is 41 +/- 10kg per degrees C increase in global temperature. Changes in body size of Bison may be a result of migration, disease, or human harvest but those effects are likely to be local and short-term and not likely to persist over the long time scale of the fossil record. The strong correspondence between body size of bison and air temperature is more likely the result of persistent effects on the ability to grow and the consequences of sustaining a large body mass in a warming environment. Continuing rises in global temperature will likely depress body sizes of bison, and perhaps other large grazers, without human intervention.
NoteOpen access journal.
VersionFinal published version
SponsorsDivision of Graduate Education ; Western Bison Association; Throlson American Bison Foundation; Larry D. Agenbroad Legacy Fund; US National Science Foundation
- Decadal heat and drought drive body size of North American bison (<i>Bison bison</i>) along the Great Plains.
- Authors: Martin JM, Barboza PS
- Issue date: 2020 Jan
- Long-term climate sensitivity of grazer performance: a cross-site study.
- Authors: Craine JM
- Issue date: 2013
- Divergent morphological responses to millennia of climate change in two species of bats from Hall's Cave, Texas, USA.
- Authors: Moroz M, Jackson ISC, Ramirez D, Kemp ME
- Issue date: 2021
- Adherence to Bergmann's rule by lizards may depend on thermoregulatory mode: support from a nocturnal gecko.
- Authors: Penniket S, Cree A
- Issue date: 2015 Jun
- Climatic warming and the future of bison as grazers.
- Authors: Craine JM, Towne EG, Miller M, Fierer N
- Issue date: 2015 Nov 16