Skip to content

Ecosystem state shifts during long-term development of an Amazonian peatland

Research output: Contribution to journalArticle

Standard

Ecosystem state shifts during long-term development of an Amazonian peatland. / Swindles, Graeme T.; Morris, Paul J.; Whitney, Bronwen; Galloway, Jennifer M.; Gałka, Mariusz; Gallego-Sala, Angela; Macumber, Andrew L.; Mullan, Donal; Smith, Mark W.; Amesbury, Matthew J.; Roland, Thomas P.; Sanei, Hamed; Patterson, R. Timothy; Sanderson, Nicole; Parry, Lauren; Charman, Dan J.; Lopez, Omar; Valderamma, Elvis; Watson, Elizabeth J.; Ivanovic, Ruza F.; Valdes, Paul J.; Turner, T. Edward; Lähteenoja, Outi.

In: Global Change Biology, Vol. 24, No. 2, 01.02.2018, p. 738-757.

Research output: Contribution to journalArticle

Harvard

Swindles, GT, Morris, PJ, Whitney, B, Galloway, JM, Gałka, M, Gallego-Sala, A, Macumber, AL, Mullan, D, Smith, MW, Amesbury, MJ, Roland, TP, Sanei, H, Patterson, RT, Sanderson, N, Parry, L, Charman, DJ, Lopez, O, Valderamma, E, Watson, EJ, Ivanovic, RF, Valdes, PJ, Turner, TE & Lähteenoja, O 2018, 'Ecosystem state shifts during long-term development of an Amazonian peatland', Global Change Biology, vol. 24, no. 2, pp. 738-757. https://doi.org/10.1111/gcb.13950

APA

Swindles, G. T., Morris, P. J., Whitney, B., Galloway, J. M., Gałka, M., Gallego-Sala, A., ... Lähteenoja, O. (2018). Ecosystem state shifts during long-term development of an Amazonian peatland. Global Change Biology, 24(2), 738-757. https://doi.org/10.1111/gcb.13950

Vancouver

Swindles GT, Morris PJ, Whitney B, Galloway JM, Gałka M, Gallego-Sala A et al. Ecosystem state shifts during long-term development of an Amazonian peatland. Global Change Biology. 2018 Feb 1;24(2):738-757. https://doi.org/10.1111/gcb.13950

Author

Swindles, Graeme T. ; Morris, Paul J. ; Whitney, Bronwen ; Galloway, Jennifer M. ; Gałka, Mariusz ; Gallego-Sala, Angela ; Macumber, Andrew L. ; Mullan, Donal ; Smith, Mark W. ; Amesbury, Matthew J. ; Roland, Thomas P. ; Sanei, Hamed ; Patterson, R. Timothy ; Sanderson, Nicole ; Parry, Lauren ; Charman, Dan J. ; Lopez, Omar ; Valderamma, Elvis ; Watson, Elizabeth J. ; Ivanovic, Ruza F. ; Valdes, Paul J. ; Turner, T. Edward ; Lähteenoja, Outi. / Ecosystem state shifts during long-term development of an Amazonian peatland. In: Global Change Biology. 2018 ; Vol. 24, No. 2. pp. 738-757.

Bibtex

@article{f92b049626f84972bdde72902c7614b6,
title = "Ecosystem state shifts during long-term development of an Amazonian peatland",
abstract = "The most carbon (C)-dense ecosystems of Amazonia are areas characterized by the presence of peatlands. However, Amazonian peatland ecosystems are poorly understood and are threatened by human activities. Here, we present an investigation into long-term ecohydrological controls on C accumulation in an Amazonian peat dome. This site is the oldest peatland yet discovered in Amazonia (peat initiation ca. 8.9 ka BP), and developed in three stages: (i) peat initiated in an abandoned river channel with open water and aquatic plants; (ii) inundated forest swamp; and (iii) raised peat dome (since ca. 3.9 ka BP). Local burning occurred at least three times in the past 4,500 years. Two phases of particularly rapid C accumulation (ca. 6.6–6.1 and ca. 4.9–3.9 ka BP), potentially resulting from increased net primary productivity, were seemingly driven by drier conditions associated with widespread drought events. The association of drought phases with major ecosystem state shifts (open water wetland–forest swamp–peat dome) suggests a potential climatic control on the developmental trajectory of this tropical peatland. A third drought phase centred on ca. 1.8–1.1 ka BP led to markedly reduced C accumulation and potentially a hiatus during the peat dome stage. Our results suggest that future droughts may lead to phases of rapid C accumulation in some inundated tropical peat swamps, although this can lead ultimately to a shift to ombrotrophy and a subsequent return to slower C accumulation. Conversely, in ombrotrophic peat domes, droughts may lead to reduced C accumulation or even net loss of peat. Increased surface wetness at our site in recent decades may reflect a shift towards a wetter climate in western Amazonia. Amazonian peatlands represent important carbon stores and habitats, and are important archives of past climatic and ecological information. They should form key foci for conservation efforts.",
keywords = "Amazon rainforest, carbon accumulation, climate, Holocene, palaeoecology, peat, Peru, swamp, tropical peatland",
author = "Swindles, {Graeme T.} and Morris, {Paul J.} and Bronwen Whitney and Galloway, {Jennifer M.} and Mariusz Gałka and Angela Gallego-Sala and Macumber, {Andrew L.} and Donal Mullan and Smith, {Mark W.} and Amesbury, {Matthew J.} and Roland, {Thomas P.} and Hamed Sanei and Patterson, {R. Timothy} and Nicole Sanderson and Lauren Parry and Charman, {Dan J.} and Omar Lopez and Elvis Valderamma and Watson, {Elizabeth J.} and Ivanovic, {Ruza F.} and Valdes, {Paul J.} and Turner, {T. Edward} and Outi L{\"a}hteenoja",
note = "{\circledC} 2017 The Authors. Global Change Biology Published by John Wiley & Sons Ltd.",
year = "2018",
month = "2",
day = "1",
doi = "10.1111/gcb.13950",
language = "English",
volume = "24",
pages = "738--757",
journal = "Global Change Biology",
issn = "1354-1013",
publisher = "Wiley",
number = "2",

}

RIS - suitable for import to EndNote

TY - JOUR

T1 - Ecosystem state shifts during long-term development of an Amazonian peatland

AU - Swindles, Graeme T.

AU - Morris, Paul J.

AU - Whitney, Bronwen

AU - Galloway, Jennifer M.

AU - Gałka, Mariusz

AU - Gallego-Sala, Angela

AU - Macumber, Andrew L.

AU - Mullan, Donal

AU - Smith, Mark W.

AU - Amesbury, Matthew J.

AU - Roland, Thomas P.

AU - Sanei, Hamed

AU - Patterson, R. Timothy

AU - Sanderson, Nicole

AU - Parry, Lauren

AU - Charman, Dan J.

AU - Lopez, Omar

AU - Valderamma, Elvis

AU - Watson, Elizabeth J.

AU - Ivanovic, Ruza F.

AU - Valdes, Paul J.

AU - Turner, T. Edward

AU - Lähteenoja, Outi

N1 - © 2017 The Authors. Global Change Biology Published by John Wiley & Sons Ltd.

PY - 2018/2/1

Y1 - 2018/2/1

N2 - The most carbon (C)-dense ecosystems of Amazonia are areas characterized by the presence of peatlands. However, Amazonian peatland ecosystems are poorly understood and are threatened by human activities. Here, we present an investigation into long-term ecohydrological controls on C accumulation in an Amazonian peat dome. This site is the oldest peatland yet discovered in Amazonia (peat initiation ca. 8.9 ka BP), and developed in three stages: (i) peat initiated in an abandoned river channel with open water and aquatic plants; (ii) inundated forest swamp; and (iii) raised peat dome (since ca. 3.9 ka BP). Local burning occurred at least three times in the past 4,500 years. Two phases of particularly rapid C accumulation (ca. 6.6–6.1 and ca. 4.9–3.9 ka BP), potentially resulting from increased net primary productivity, were seemingly driven by drier conditions associated with widespread drought events. The association of drought phases with major ecosystem state shifts (open water wetland–forest swamp–peat dome) suggests a potential climatic control on the developmental trajectory of this tropical peatland. A third drought phase centred on ca. 1.8–1.1 ka BP led to markedly reduced C accumulation and potentially a hiatus during the peat dome stage. Our results suggest that future droughts may lead to phases of rapid C accumulation in some inundated tropical peat swamps, although this can lead ultimately to a shift to ombrotrophy and a subsequent return to slower C accumulation. Conversely, in ombrotrophic peat domes, droughts may lead to reduced C accumulation or even net loss of peat. Increased surface wetness at our site in recent decades may reflect a shift towards a wetter climate in western Amazonia. Amazonian peatlands represent important carbon stores and habitats, and are important archives of past climatic and ecological information. They should form key foci for conservation efforts.

AB - The most carbon (C)-dense ecosystems of Amazonia are areas characterized by the presence of peatlands. However, Amazonian peatland ecosystems are poorly understood and are threatened by human activities. Here, we present an investigation into long-term ecohydrological controls on C accumulation in an Amazonian peat dome. This site is the oldest peatland yet discovered in Amazonia (peat initiation ca. 8.9 ka BP), and developed in three stages: (i) peat initiated in an abandoned river channel with open water and aquatic plants; (ii) inundated forest swamp; and (iii) raised peat dome (since ca. 3.9 ka BP). Local burning occurred at least three times in the past 4,500 years. Two phases of particularly rapid C accumulation (ca. 6.6–6.1 and ca. 4.9–3.9 ka BP), potentially resulting from increased net primary productivity, were seemingly driven by drier conditions associated with widespread drought events. The association of drought phases with major ecosystem state shifts (open water wetland–forest swamp–peat dome) suggests a potential climatic control on the developmental trajectory of this tropical peatland. A third drought phase centred on ca. 1.8–1.1 ka BP led to markedly reduced C accumulation and potentially a hiatus during the peat dome stage. Our results suggest that future droughts may lead to phases of rapid C accumulation in some inundated tropical peat swamps, although this can lead ultimately to a shift to ombrotrophy and a subsequent return to slower C accumulation. Conversely, in ombrotrophic peat domes, droughts may lead to reduced C accumulation or even net loss of peat. Increased surface wetness at our site in recent decades may reflect a shift towards a wetter climate in western Amazonia. Amazonian peatlands represent important carbon stores and habitats, and are important archives of past climatic and ecological information. They should form key foci for conservation efforts.

KW - Amazon rainforest

KW - carbon accumulation

KW - climate

KW - Holocene

KW - palaeoecology

KW - peat

KW - Peru

KW - swamp

KW - tropical peatland

UR - http://www.scopus.com/inward/record.url?scp=85037364953&partnerID=8YFLogxK

U2 - 10.1111/gcb.13950

DO - 10.1111/gcb.13950

M3 - Article

VL - 24

SP - 738

EP - 757

JO - Global Change Biology

JF - Global Change Biology

SN - 1354-1013

IS - 2

ER -