2,100 years of human adaptation to climate change in the High Andes

Christine M. Åkesson, Frazer Matthews-Bird, Madeleine Bitting, Christie Jane Fennell, Warren B. Church, Larry C. Peterson, Bryan G. Valencia, Mark B. Bush

Research output: Contribution to journalArticle

Abstract

Humid montane forests are challenging environments for human habitation. We used high-resolution fossil pollen, charcoal, diatom and sediment chemistry data from the iconic archaeological setting of Laguna de los Condores, Peru to reconstruct changing land uses and climates in a forested Andean valley. Forest clearance and maize cultivation were initiated during periods of drought, with periods of forest recovery occurring during wetter conditions. Between ad 800 and 1000 forest regrowth was evident, but this trend was reversed between ad 1000 and 1200 as drier conditions coincided with renewed land clearance, the establishment of a permanent village and the use of cliffs overlooking the lake as a burial site. By ad 1230 forests had regrown in the valley and maize cultivation was greatly reduced. An elevational transect investigating regional patterns showed a parallel, but earlier, history of reduced maize cultivation and forest regeneration at mid-elevation. However, a lowland site showed continuous maize agriculture until European conquest but very little subsequent change in forest cover. Divergent, climate-sensitive landscape histories do not support categorical assessments that forest regrowth and peak carbon sequestration coincided with European arrival.

Original languageEnglish (US)
Pages (from-to)66-74
Number of pages9
JournalNature Ecology and Evolution
Volume4
Issue number1
DOIs
StatePublished - Jan 1 2020

Fingerprint

climate change
maize
regrowth
corn
landscape history
forest clearance
sediment chemistry
valleys
valley
regional pattern
climate
montane forest
forest cover
wet environmental conditions
forest regeneration
cliff
charcoal
Bacillariophyceae
cliffs
carbon sequestration

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology

Cite this

Åkesson, C. M., Matthews-Bird, F., Bitting, M., Fennell, C. J., Church, W. B., Peterson, L. C., ... Bush, M. B. (2020). 2,100 years of human adaptation to climate change in the High Andes. Nature Ecology and Evolution, 4(1), 66-74. https://doi.org/10.1038/s41559-019-1056-2

2,100 years of human adaptation to climate change in the High Andes. / Åkesson, Christine M.; Matthews-Bird, Frazer; Bitting, Madeleine; Fennell, Christie Jane; Church, Warren B.; Peterson, Larry C.; Valencia, Bryan G.; Bush, Mark B.

In: Nature Ecology and Evolution, Vol. 4, No. 1, 01.01.2020, p. 66-74.

Research output: Contribution to journalArticle

Åkesson, CM, Matthews-Bird, F, Bitting, M, Fennell, CJ, Church, WB, Peterson, LC, Valencia, BG & Bush, MB 2020, '2,100 years of human adaptation to climate change in the High Andes', Nature Ecology and Evolution, vol. 4, no. 1, pp. 66-74. https://doi.org/10.1038/s41559-019-1056-2
Åkesson, Christine M. ; Matthews-Bird, Frazer ; Bitting, Madeleine ; Fennell, Christie Jane ; Church, Warren B. ; Peterson, Larry C. ; Valencia, Bryan G. ; Bush, Mark B. / 2,100 years of human adaptation to climate change in the High Andes. In: Nature Ecology and Evolution. 2020 ; Vol. 4, No. 1. pp. 66-74.
@article{8457cdfba55040039a7bd7ded9262dd1,
title = "2,100 years of human adaptation to climate change in the High Andes",
abstract = "Humid montane forests are challenging environments for human habitation. We used high-resolution fossil pollen, charcoal, diatom and sediment chemistry data from the iconic archaeological setting of Laguna de los Condores, Peru to reconstruct changing land uses and climates in a forested Andean valley. Forest clearance and maize cultivation were initiated during periods of drought, with periods of forest recovery occurring during wetter conditions. Between ad 800 and 1000 forest regrowth was evident, but this trend was reversed between ad 1000 and 1200 as drier conditions coincided with renewed land clearance, the establishment of a permanent village and the use of cliffs overlooking the lake as a burial site. By ad 1230 forests had regrown in the valley and maize cultivation was greatly reduced. An elevational transect investigating regional patterns showed a parallel, but earlier, history of reduced maize cultivation and forest regeneration at mid-elevation. However, a lowland site showed continuous maize agriculture until European conquest but very little subsequent change in forest cover. Divergent, climate-sensitive landscape histories do not support categorical assessments that forest regrowth and peak carbon sequestration coincided with European arrival.",
author = "{\AA}kesson, {Christine M.} and Frazer Matthews-Bird and Madeleine Bitting and Fennell, {Christie Jane} and Church, {Warren B.} and Peterson, {Larry C.} and Valencia, {Bryan G.} and Bush, {Mark B.}",
year = "2020",
month = "1",
day = "1",
doi = "10.1038/s41559-019-1056-2",
language = "English (US)",
volume = "4",
pages = "66--74",
journal = "Nature Ecology and Evolution",
issn = "2397-334X",
publisher = "Nature Publishing Group",
number = "1",

}

TY - JOUR

T1 - 2,100 years of human adaptation to climate change in the High Andes

AU - Åkesson, Christine M.

AU - Matthews-Bird, Frazer

AU - Bitting, Madeleine

AU - Fennell, Christie Jane

AU - Church, Warren B.

AU - Peterson, Larry C.

AU - Valencia, Bryan G.

AU - Bush, Mark B.

PY - 2020/1/1

Y1 - 2020/1/1

N2 - Humid montane forests are challenging environments for human habitation. We used high-resolution fossil pollen, charcoal, diatom and sediment chemistry data from the iconic archaeological setting of Laguna de los Condores, Peru to reconstruct changing land uses and climates in a forested Andean valley. Forest clearance and maize cultivation were initiated during periods of drought, with periods of forest recovery occurring during wetter conditions. Between ad 800 and 1000 forest regrowth was evident, but this trend was reversed between ad 1000 and 1200 as drier conditions coincided with renewed land clearance, the establishment of a permanent village and the use of cliffs overlooking the lake as a burial site. By ad 1230 forests had regrown in the valley and maize cultivation was greatly reduced. An elevational transect investigating regional patterns showed a parallel, but earlier, history of reduced maize cultivation and forest regeneration at mid-elevation. However, a lowland site showed continuous maize agriculture until European conquest but very little subsequent change in forest cover. Divergent, climate-sensitive landscape histories do not support categorical assessments that forest regrowth and peak carbon sequestration coincided with European arrival.

AB - Humid montane forests are challenging environments for human habitation. We used high-resolution fossil pollen, charcoal, diatom and sediment chemistry data from the iconic archaeological setting of Laguna de los Condores, Peru to reconstruct changing land uses and climates in a forested Andean valley. Forest clearance and maize cultivation were initiated during periods of drought, with periods of forest recovery occurring during wetter conditions. Between ad 800 and 1000 forest regrowth was evident, but this trend was reversed between ad 1000 and 1200 as drier conditions coincided with renewed land clearance, the establishment of a permanent village and the use of cliffs overlooking the lake as a burial site. By ad 1230 forests had regrown in the valley and maize cultivation was greatly reduced. An elevational transect investigating regional patterns showed a parallel, but earlier, history of reduced maize cultivation and forest regeneration at mid-elevation. However, a lowland site showed continuous maize agriculture until European conquest but very little subsequent change in forest cover. Divergent, climate-sensitive landscape histories do not support categorical assessments that forest regrowth and peak carbon sequestration coincided with European arrival.

UR - http://www.scopus.com/inward/record.url?scp=85076563978&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85076563978&partnerID=8YFLogxK

U2 - 10.1038/s41559-019-1056-2

DO - 10.1038/s41559-019-1056-2

M3 - Article

C2 - 31819239

AN - SCOPUS:85076563978

VL - 4

SP - 66

EP - 74

JO - Nature Ecology and Evolution

JF - Nature Ecology and Evolution

SN - 2397-334X

IS - 1

ER -