Rapid climate change and no-analog vegetation in lowland Central America during the last 86,000 years

Correa‐Metrio, Alexander; Bush, Mark B.; Cabrera, Kenneth R.; Sully, Shannon; Brenner, Mark; Hodell, David A; Escobar, Jaime; Guilderson, T. P.

doi:10.1016/j.quascirev.2012.01.025

Cited by 125 publications

(132 citation statements)

References 71 publications

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“…3). As at Tower Lake, the community observed at any single point in time is ephemeral, rarely persisting for more than a few millennia before being replaced by something new (53,54). These changes were also driven largely by climate change, often accompanied by changes in fire regime (53)(54)(55).…”

Section: Communities Come Communities Gomentioning

confidence: 99%

Community ecology in a changing environment: Perspectives from the Quaternary

Jackson

Blois

2015

Proc. Natl. Acad. Sci. U.S.A.

164

125

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Community ecology and paleoecology are both concerned with the composition and structure of biotic assemblages but are largely disconnected. Community ecology focuses on existing species assemblages and recently has begun to integrate history (phylogeny and continental or intercontinental dispersal) to constrain community processes. This division has left a "missing middle": Ecological and environmental processes occurring on timescales from decades to millennia are not yet fully incorporated into community ecology. Quaternary paleoecology has a wealth of data documenting ecological dynamics at these timescales, and both fields can benefit from greater interaction and articulation. We discuss ecological insights revealed by Quaternary terrestrial records, suggest foundations for bridging between the disciplines, and identify topics where the disciplines can engage to mutual benefit. community ecology | Quaternary paleoecology | climate change Community ecology and Quaternary paleoecology are both concerned with the composition and structure of biotic assemblages, including patterns of spatial variation and dynamics in changing environments. Community ecology focuses on the here and now of existing species assemblages, emphasizing mechanistic understanding of local species interactions and their consequences. Quaternary paleoecology uses geohistorical evidence (1) to infer properties of past communities and how they have changed, at local to regional scales, during the past few thousand to the past 2.6 million years. Both fields are under increasing demand to inform scientists, resource managers, and policymakers of what might be in store for biodiversity and ecosystems services under ongoing and future global change (2-5). Despite their shared concerns, however, community ecology and Quaternary paleoecology are fundamentally disconnected, with relatively little engagement.

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Section: Communities Come Communities Gomentioning

confidence: 99%

Community ecology in a changing environment: Perspectives from the Quaternary

Jackson

Blois

2015

Proc. Natl. Acad. Sci. U.S.A.

164

125

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“…These studies lead to the calibration of the fossil signals in terms of the variables of interest, allowing a priori interpretations of the results derived from the analysis of fossil sequences (e.g. Correa-Metrio et al, 2011a, 2012a. Nevertheless, these data sets are rarely available, calling for the need of using multidimensional rescaling, a series of techniques that offers patterns of ecological and environmental change derived from a posteriori interpretations (Legendre and Legendre, 1998;Correa-Metrio et al, 2010).…”

Section: Multivariate Analyses Of Fossil Data Setsmentioning

confidence: 99%

Detrended correspondence analysis: A useful tool to quantify ecological changes from fossil data sets

Correa‐Metrio

Dechnik

Lozano‐García

et al. 2014

BSGM

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Fossil assemblages reflect the parental communities that produced them, and are in turn associated with specific environmental conditions. Thus, climatic and environmental changes are associated with changes in both the biotic communities and the fossil assemblages they produce. As a consequence, the environmental reconstruction of the past relies on the interpretation of multivariate fossil sequences that are commonly analyzed through dimensional rescaling techniques. Detrended correspondence analysis (DCA) has proven as an excellent technique to summarize ecological changes through time with the advantage of few prior assumptions and results that can be directly interpreted in terms of ecological turnover. In this paper we elaborate on a brief description of the technique and the interpretation of results, using a worked example on pollen and diatom data sets from Lago Verde (Los Tuxtlas, Mexico). With this worked example, we highlight the three basic ways in which DCA can provide useful approaches for a clear and relatively easy interpretation of the fossil data: i) identification of the ecological space through the a priori interpretation of species ordination; ii) localization of time slices within the ecological space defined by species, and quantification of the ecological turnover among samples; and iii) calculation of ecological distances as a means for putting individual samples into the historical context provided by the time frame in question.Keywords: Ecological distance, ecological turnover, ecological baseline, pollen, diatoms, detrended correspondence analysis (DCA). Resumen Los arreglos de fósiles coetáneos reflejan las comunidades parentales que los produjeron, las cuales están asociadas a su vez con condiciones ambientales particulares. Por lo tanto, los cambios climáticos y ambientales están inherentemente asociados con cambios en las comunidades bióticas y en los arreglos fósiles

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“…During the last glacial, rapid air temperature increases followed by intense cooling are clearly evident in NGRIP Greenland ice core (Andersen et al, 2007), North Atlantic sediment cores (Clement and Peterson, 2008) and Northern Hemisphere palynology (Correa-Metrio et al, 2012). These events were named Dansgaard-Oeschger (D-O) and Heinrich events.…”

Section: Introductionmentioning

confidence: 99%

South Tropical Atlantic anti-phase response to Holocene Bond Events

Evangelista¹,

Gurgel²,

Sifeddine³

et al. 2014

Palaeogeography, Palaeoclimatology, Palaeoecology

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Records of the climatic impacts of the North Atlantic Bond cycles over the subtropical Southern Hemisphere remain scarce, and their mechanism is a topic of active discussion. We present here an alkenone-based reconstructed sea surface temperature (SST) of a sediment core retrieved from the Brazilian Southwestern Tropical Atlantic (SWTA), Rio de Janeiro, together with a sediment SST record from the Cariaco Basin. The sediment cores span the period 2,100 B.P. -11,100 B.P. Morlet-wavelet analysis detected marked periodic signals of~0.8,~1.7 and 2.2 kyr, very similar and with comparable phases to the hematite-stained-grain time series from the Northern North Atlantic in which the cyclic pattern was recognized as Bond cycles. Our result corroborates the modeled surface ocean anti-phase thermal relation between the North and the South Atlantic. We attribute this behavior to the slowing of the Atlantic Meridional Overturning Circulation. The relative SST warming at Rio de Janeiro and the relative cooling at Cariaco were comparatively more pronounced during the early Holocene (from 11 to 5 kyr B.P.) than in more recent time.

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Rapid climate change and no-analog vegetation in lowland Central America during the last 86,000 years

Cited by 125 publications

References 71 publications

Community ecology in a changing environment: Perspectives from the Quaternary

Community ecology in a changing environment: Perspectives from the Quaternary

Detrended correspondence analysis: A useful tool to quantify ecological changes from fossil data sets

South Tropical Atlantic anti-phase response to Holocene Bond Events

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