uid=HFR,o=lter,dc=ecoinformatics,dc=org all public read doi:10.6073/pasta/33231d4df3dd821ac146cf42200175a7 Peter Schoonmaker David Foster https://orcid.org/0000-0003-1171-3762 2023 English

The paleoecological record allows contemporary ecologists to put current phenomena into the context of a longer time-frame, thereby providing the opportunity to evaluate the importance of slowly operating processes, past cyclic or unusual events, disturbance regimes, and historically constrained phenomena. We briefly outline the environmental history of the Quaternary, discuss the spatial and temporal resolution of the paleoecological evidence for biotic change, and summarize data relevant to such current issues as the nature of the biotic community, the role of disturbance, stability versus rapid change, evolutionary theory, explanations of species diversity, and refugia theory. Finally, we offer examples of the utility of paleoecological techniques for ecologists and environmental scientists.

dendrochronology fires paleoecology pollen LTER controlled vocabulary disturbance LTER core area Harvard Forest HFR LTER USA HFR default

This dataset is released to the public under Creative Commons CC0 1.0 (No Rights Reserved). Please keep the dataset creators informed of any plans to use the dataset. Consultation with the original investigators is strongly encouraged. Publications and data products that make use of the dataset should include proper acknowledgement.

Creative Commons Zero v1.0 Universal https://spdx.org/licenses/CC0-1.0.html CC0-1.0 https://harvardforest.fas.harvard.edu/exist/apps/datasets/showData.html?id=hf077 Pisgah State Forest (NH). Coordinates based on WGS84 datum. -72.44 -72.44 +42.83 +42.83 350 350 meter -11000 2000 genus Acer maple genus Betula birch genus Castanea chestnut genus Fagus beech genus Pinus pine genus Quercus oak genus Tsuga hemlock complete Information Manager Harvard Forest

324 North Main Street Petersham MA 01366 USA

(978) 724-3302 hf-im@lists.fas.harvard.edu Harvard Forest

324 North Main Street Petersham MA 01366 USA

(978) 724-3302 (978) 724-3595 https://harvardforest.fas.harvard.edu

Bog sediment cores were obtained with a modified Livingstone corer. The cores were cut into 1-cm intervals, and selected samples were processed for pollen using standard procedures. The cores were dated by pollen stratigraphic markers and radiocarbon isotopes, and pollen grains and microscopic charcoal were counted.

Harvard Forest

324 North Main Street Petersham MA 01366 USA

(978) 724-3302 (978) 724-3595 https://harvardforest.fas.harvard.edu https://ror.org/059cpzx98 pointOfContact The Harvard Forest Long-Term Ecological Research (LTER) program examines ecological dynamics in the New England region resulting from natural disturbances, environmental change, and human impacts. National Science Foundation LTER grants: DEB-8811764, DEB-9411975, DEB-0080592, DEB-0620443, DEB-1237491, DEB-1832210. hf077-01-age.csv age model - Lost Swamp hf077-01-age.csv 248 a8846987d72ed9ec47481e3802ee7cd5 1 \r\n column , https://harvardforest.fas.harvard.edu/data/p07/hf077/hf077-01-age.csv sample sample number sample number beta laboratory number laboratory number depth depth of sample in the sediment column (cm) depth of sample in the sediment column (cm) sediment.type material from the sample used for dating material from the sample used for dating weight weight gram 0.01 real NA missing value c14.age reported radiocarbon date (years before 1950) number 1 natural NA missing value error error in radiocarbon date reported by lab (± years) number 1 natural NA missing value 4 hf077-02-pollen.csv pollen hf077-02-pollen.csv 281691 a7dbf9b9ae6acd40eee37f8bb7a8142f 1 \r\n column , https://harvardforest.fas.harvard.edu/data/p07/hf077/hf077-02-pollen.csv site site name LS Lost Swamp CP Central Plot SP South Plot depth depth of sample in the sediment column centimeter 0.1 real NA missing value taxa taxa name. Indet. Crumple: Number of indeterminable crumpled pollen grains. Indet. Corroded: Number of indeterminable corroded pollen grains. Indet. Obscured: Number of indeterminable obscured pollen grains. Unknown: Number of unknown or unidentified pollen grains. Exotic: Number of exotic pollen grains identified. taxa name count number of pollen grains of identified individual taxa number 0.1 real NA missing value 13554 historical community regional paleological https://harvardforest.fas.harvard.edu/exist/apps/datasets/showData.html?id=hf041