Donna R Francis
Dados Biográficos
| ID | 4455545 |
|---|---|
| NOME | Donna R Francis |
| PRENOMES | Donna R |
| SOBRENOME | Francis |
| ASSINATURA | FRANCIS D R |
| AFILIAÇÕES | University of Massachusetts Amherst |
| VERIFICADO | Não |
| TOTAL DE OBRAS | 4 |
| TOTAL DE CITAÇÕES | 5 |
| TOTAL COMO AUTOR | 4 |
| TOTAL COMO EDITOR | 0 |
| PRIMEIRO ANO DE PUBLICAÇÃO | 2001 |
| ANO MAIS RECENTE DE PUBLICAÇÃO | 2011 |
| ÍNDICE H | 1 |
A 2000-yr-long multi-proxy lacustrine record from eastern Baffin Island, Arctic Canada reveals first millennium AD cold period
We generate a multi-proxy sub-centennial-scale reconstruction of environmental change during the past two millennia from Itilliq Lake, Baffin Island, Arctic Canada. Our reconstruction arises from a finely subsectioned 210 Pb- and 14 C-dated surface sediment core and includes measures of organic matter (e.g., chlorophyll a ; carbon–nitrogen ratio) and insect (Diptera: Chironomidae) assemblages. Within the past millennium, the least productive, and…
Paleoecological evidence for abrupt cold reversals during peak Holocene warmth on Baffin Island, Arctic Canada
A continuous record of insect (Chironomidae) remains preserved in lake sediments is used to infer temperature changes at a small lake in Arctic Canada through the Holocene. Early Holocene summers at the study site were characterized by more thermophilous assemblages and warmer inferred temperatures than today, presumably in response to the positive anomaly in Northern Hemisphere summer insolation. Peak early Holocene warmth was interrupted by two…
A multi-proxy lacustrine record of Holocene climate change on northeastern Baffin Island, Arctic Canada
Reconstructions of past environmental changes are critical for understanding the natural variability of Earth's climate system and for providing a context for present and future global change. Radiocarbon-dated lake sediments from Lake CF3, northeastern Baffin Island, Arctic Canada, are used to reconstruct past environmental conditions over the last 11,200 years. Numerous proxies, including chironomid-inferred July air temperatures, diatom-inferr…
Response of small New England ponds to historic land use
This palaeolimnological study addresses whether the timing, magnitude and nature of lake-ecosystem changes closely track changes in land-use intensity and forest cover in the watershed, and the extent to which lakes retuni to pre-disturbance states following the substantial long-term declinie in human activity that is typical for much of the rural eastern United States. Land-use intensity in the watersheds increased rapidly witlh European settlem…
Response of small New England ponds to historic land use
This palaeolimnological study addresses whether the timing, magnitude and nature of lake-ecosystem changes closely track changes in land-use intensity and forest cover in the watershed, and the extent to which lakes retuni to pre-disturbance states following the substantial long-term declinie in human activity that is typical for much of the rural eastern United States. Land-use intensity in the watersheds increased rapidly witlh European settlem…
Response of small New England ponds to historic land use
This palaeolimnological study addresses whether the timing, magnitude and nature of lake-ecosystem changes closely track changes in land-use intensity and forest cover in the watershed, and the extent to which lakes retuni to pre-disturbance states following the substantial long-term declinie in human activity that is typical for much of the rural eastern United States. Land-use intensity in the watersheds increased rapidly witlh European settlem…
A multi-proxy lacustrine record of Holocene climate change on northeastern Baffin Island, Arctic Canada
Reconstructions of past environmental changes are critical for understanding the natural variability of Earth's climate system and for providing a context for present and future global change. Radiocarbon-dated lake sediments from Lake CF3, northeastern Baffin Island, Arctic Canada, are used to reconstruct past environmental conditions over the last 11,200 years. Numerous proxies, including chironomid-inferred July air temperatures, diatom-inferr…
Paleoecological evidence for abrupt cold reversals during peak Holocene warmth on Baffin Island, Arctic Canada
A continuous record of insect (Chironomidae) remains preserved in lake sediments is used to infer temperature changes at a small lake in Arctic Canada through the Holocene. Early Holocene summers at the study site were characterized by more thermophilous assemblages and warmer inferred temperatures than today, presumably in response to the positive anomaly in Northern Hemisphere summer insolation. Peak early Holocene warmth was interrupted by two…
A 2000-yr-long multi-proxy lacustrine record from eastern Baffin Island, Arctic Canada reveals first millennium AD cold period
We generate a multi-proxy sub-centennial-scale reconstruction of environmental change during the past two millennia from Itilliq Lake, Baffin Island, Arctic Canada. Our reconstruction arises from a finely subsectioned 210 Pb- and 14 C-dated surface sediment core and includes measures of organic matter (e.g., chlorophyll a ; carbon–nitrogen ratio) and insect (Diptera: Chironomidae) assemblages. Within the past millennium, the least productive, and…
Geography (4 obras) · Geology and Paleoclimatology Research (4 obras) · Physical geography (4 obras) · Arctic (3 obras) · Climate change (3 obras) · Climate change and permafrost (3 obras) · Geology (3 obras) · Oceanography (3 obras) · Paleoclimatology (3 obras) · Climatology (2 obras)