Andrea Brunelle
Dados Biográficos
| ID | 4640563 |
|---|---|
| NOME | Andrea Brunelle |
| PRENOMES | Andrea |
| SOBRENOME | Brunelle |
| ASSINATURA | BRUNELLE A |
| AFILIAÇÕES | University of Utah |
| ORCID | 0000-0001-6552-0056 |
| VERIFICADO | Sim |
| TOTAL DE OBRAS | 33 |
| TOTAL DE CITAÇÕES | 23 |
| TOTAL COMO AUTOR | 33 |
| TOTAL COMO EDITOR | 0 |
| PRIMEIRO ANO DE PUBLICAÇÃO | 2003 |
| ANO MAIS RECENTE DE PUBLICAÇÃO | 2025 |
| ÍNDICE H | 3 |
Student responses to the climate crisis
Purpose This study explored how undergraduate students familiar with the climate crisis navigate climate-specific challenges in their personal lives, an area where knowledge is extremely inadequate. Design/methodology/approach The authors examined a broad range of adaptive (i.e. helpful) and maladaptive (i.e. unhelpful) strategies that students employ to manage their emotions concerning climate change, as well as resources that could help them ad…
Using x-ray fluorescence to identify Mazama ash in the Lake Bonneville basin, Utah, USA
Generalizable solutions are needed for identifying volcanic tephra in sedimentary records. We used x-ray fluorescence (XRF) analysis first to detect volcanic tephra material, followed by electron microprobe analysis to identify the tephra as Mazama ash (7682–7584 cal yr BP) in three sediment cores from the Lake Bonneville basin. We compare these records from varying environmental settings to evaluate tephra presence in the mid-Holocene. We sugges…
A late glacial paleoenvironmental and climate record from the Sierra de Juarez, Baja California
Ciénegas are desert wetlands that are strongly correlated with the stability of the hydrologic cycle in arid landscapes. However, these environments are particularly vulnerable to climate change, drought, water diversion, and fire suppression which all have contributed to the degradation of ciénegas along the U.S.-Mexican borderlands. Therefore, identifying the timing of precipitation patterns in this region is of particular interest because of i…
Fire-human-climate interactions in the Bolivian Amazon rainforest ecotone from the Last Glacial Maximum to late Holocene
The Amazon Rainforest Ecotone (the ARF- Ecotone ) of the southwestern Amazon Basin is a transitional landscape from tropical evergreen rainforests and seasonally flooded savannahs to savannah woodlands and semi-deciduous dry forests. While fire activity plays an integral role in ARF- Ecotones , recent interactions between human activity and increased temperatures and prolonged droughts driven by anthropogenic climate change threaten to accelerate…
Holocene chemostratigraphy of spring sediments in Range Creek Canyon, Utah, USA
This study builds off the paleoclimatic reconstruction created by Hart et al. that used a multiproxy study to examine the role of moisture in the exodus of the Fremont from Range Creek Canyon in the 12th century. For this research, elemental ratios, weathering indices, and pollen data from two wetland spring sediment cores were used to compare with the existing Hart et al. paleoclimatic reconstruction (Objective 1). Elemental ratios and pollen da…
Age control for the Lake Bottom oxbow in the Dolores River watershed of eastern Utah, USA
Building a Master Chronology for the Western Lake Bonneville Basin With Stratigraphic and Elemental Data From Multiple Sites, Usa
We present a novel approach to developing a unified radiocarbon-based chronology for multiple sediment cores from a location where radiocarbon dating is challenging. We used 36 radiocarbon ages from eight terminal Pleistocene and Holocene sediment cores with correlated stratigraphies. Stratigraphic correlation was accomplished using a combination of high-resolution photography, high-resolution X-ray fluorescence-based elemental composition data, …
Evidence for a winter-snowpack derived water source for the Fremont maize farmers of Range Creek Canyon, Utah, USA
We present results of multiproxy analysis of a sediment core collected from Billy Slope Meadow, a spring-fed wet meadow in Range Creek Canyon, Utah. Range Creek Canyon was the home to Fremont maize farmers between roughly 1200 and 800 cal BP (AD 750–1150). Stable carbon isotope analysis of core sediments from Billy Slope Meadow indicate the Billy Slope Meadow site was used as a field for maize agriculture during that time. Some scholars have sugg…
Late-Holocene seasonal moisture variability
A 3300 year-long reconstruction of paleoenvironmental moisture conditions was constructed from a sediment core from North Gate Bog (NGB) in the northern section of Range Creek Canyon within the Colorado Plateau. The methods used to analyze the record include loss on ignition (LOI), magnetic susceptibility (MS), elemental analysis with X-ray fluorescence (XRF), charcoal influx, isotopic analysis, elemental ratios and pollen percentages, influx, an…
Adaptive capacity in social–ecological systems
A 1,500-year synthesis of wildfire activity stratified by elevation from the U.S. Rocky Mountains
Reconstruction of the mid-Holocene paleoclimate of the Ecuadorian Andean páramo at Tres Lagunas, Ecuador
Previous paleoclimate studies have suggested a warm/dry event during the mid-Holocene in páramo vegetation of the tropical Andes of South America. However, the timing of the mid-Holocene warm/dry event in Tres Lagunas, Ecuador, remains uncertain, since a previously reported bog core record characterized the warm/dry event during a hiatus in sediment deposition. In order to understand the timing of the warm/dry event in Tres Lagunas in relation to…
A 14,000-year record of fire, climate, and vegetation from the Bear River Range, southeast Idaho, USA
The vegetation and fire history of the Bear River Range (BRR), Southeast Idaho has been reconstructed from pollen, plant macrofossils, and macroscopic charcoal from lacustrine sediments. Overall, the BRR record shows independent responses of vegetation and fire regime to climate variation. The reconstructions suggest strong seasonal bias from the proxies evaluated, with the pollen record most sensitive to insolation-driven summer temperature tren…
A multi-proxy record of hydroclimate, vegetation, fire, and post-settlement impacts for a subalpine plateau, central Rocky Mountains, U.S.A
Apparent changes in vegetation distribution, fire, and other disturbance regimes throughout western North America have prompted investigations of the relative importance of human activities and climate change as potential causal mechanisms. Assessing the effects of Euro-American settlement is difficult because climate changes occur on multi-decadal to centennial time scales and require longer time perspectives than historic observations can provi…
A ∼14,500 year fire and sediment history of a desert wetland in New Mexico
How can pollen and geochemical evidence from lake sediments provide context for the climate-mediated bark beetle outbreak occurring in Western North America
Complementary seasonal bias in records of Holocene paleoclimate, Bear River Range, Southeast Idaho
Using sedimentary records to inform the causes of woody plant encroachment in Southwestern US Desert Grasslands
Holocene variability of a climatic boundary in the intermountain west
Do bark beetle remains in lake sediments correspond to severe outbreaks? A review of published and ongoing research
Using fire regimes to delineate zones in a high-resolution lake sediment record from the western United States
Paleoenvironmental reconstructions are important for understanding the influence of long-term climate variability on ecosystems and landscape disturbance dynamics. In this paper we explore the linkages among past climate, vegetation, and fire regimes using a high-resolution pollen and charcoal reconstruction from Morris Pond located on the Markagunt Plateau in southwestern Utah, USA. A regime shift detection algorithm was applied to background ch…
Regionalization of fire regimes in the Central Rocky Mountains, USA
Fire is one of the most important natural disturbances in the coniferous forests of the US Rocky Mountains. The Rocky Mountains are separated by a climatic boundary between 40° and 45° N, which we refer to as the central Rocky Mountains (CRM). To determine whether the fire regime from the CRM was more similar to the northern Rocky Mountains (NRM) or southern Rocky Mountains (SRM) during the Holocene, a 12,539-yr-old sediment core from Long Lake, …
A speleothem record of Holocene paleoclimate from the northern Wasatch Mountains, southeast Idaho, USA
Holocene vegetation and fire reconstructions from the Aquarius Plateau, Utah, USA
A season specific paleoclimate record from a northern Wasatch Mountains speleothem and linkages to the pacific
Evidence for a winter-snowpack derived water source for the Fremont maize farmers of Range Creek Canyon, Utah, USA
We present results of multiproxy analysis of a sediment core collected from Billy Slope Meadow, a spring-fed wet meadow in Range Creek Canyon, Utah. Range Creek Canyon was the home to Fremont maize farmers between roughly 1200 and 800 cal BP (AD 750–1150). Stable carbon isotope analysis of core sediments from Billy Slope Meadow indicate the Billy Slope Meadow site was used as a field for maize agriculture during that time. Some scholars have sugg…
Sedimentary charcoal as an indicator of late-Holocene drought in the Sierra Nevada, California, and its relevance to the future
A Holocene record of climate, fire and vegetation regimes was reconstructed for Siesta Lake, Yosemite National Park, California, using fossil pollen and charcoal from lake sediments. These reconstructions were generated to provide a long-term perspective on drought in the Sierra Nevada. The sedimentary record is in agreement with other long-term records of climate and vegetation from the Sierra Nevada, and the records of climate and fire for the …
Isotopic analysis of wetland development in the American Southwest
The analysis of stable isotope and elemental fractions of organic material collected from San Bernardino Ciénega was used to understand the history of vegetation composition and climate change within this desert wetland. A 4000-yr record of sediment buildup, based on four 14 C measurements, provides unique opportunities for the study of environmental conditions within an arid landscape and documents climate shifts from drier to wetter conditions …
Adaptive capacity in social–ecological systems
A 14,000-year record of fire, climate, and vegetation from the Bear River Range, southeast Idaho, USA
The vegetation and fire history of the Bear River Range (BRR), Southeast Idaho has been reconstructed from pollen, plant macrofossils, and macroscopic charcoal from lacustrine sediments. Overall, the BRR record shows independent responses of vegetation and fire regime to climate variation. The reconstructions suggest strong seasonal bias from the proxies evaluated, with the pollen record most sensitive to insolation-driven summer temperature tren…
Late-Holocene seasonal moisture variability
A 3300 year-long reconstruction of paleoenvironmental moisture conditions was constructed from a sediment core from North Gate Bog (NGB) in the northern section of Range Creek Canyon within the Colorado Plateau. The methods used to analyze the record include loss on ignition (LOI), magnetic susceptibility (MS), elemental analysis with X-ray fluorescence (XRF), charcoal influx, isotopic analysis, elemental ratios and pollen percentages, influx, an…
Reconstruction of the mid-Holocene paleoclimate of the Ecuadorian Andean páramo at Tres Lagunas, Ecuador
Previous paleoclimate studies have suggested a warm/dry event during the mid-Holocene in páramo vegetation of the tropical Andes of South America. However, the timing of the mid-Holocene warm/dry event in Tres Lagunas, Ecuador, remains uncertain, since a previously reported bog core record characterized the warm/dry event during a hiatus in sediment deposition. In order to understand the timing of the warm/dry event in Tres Lagunas in relation to…
Pollen accumulation in lake sediments during historic spruce beetle disturbances in subalpine forests of southern Utah, USA
Paleoecological reconstructions using lake sediments provide important information about ecological dynamics and forest disturbance processes that occurred prior to the historic period of scientific observation. In high-altitude and high-latitude ecosystems where landscape-scale disturbances recur at time intervals exceeding observation in many regions, e.g. western North America, reconstructed environmental data are essential in providing contex…
Postglacial fire, vegetation, and climate history in the Clearwater Range, Northern Idaho, USA
The environmental history of the Northern Rocky Mountains was reconstructed using lake sediments from Burnt Knob Lake, Idaho, and comparing the results with those from other previously published sites in the region to understand how vegetation and fire regimes responded to large-scale climate changes during the Holocene. Vegetation reconstructions indicate parkland or alpine meadow at the end of the glacial period indicating cold-dry conditions. …
Sedimentary charcoal as an indicator of late-Holocene drought in the Sierra Nevada, California, and its relevance to the future
A Holocene record of climate, fire and vegetation regimes was reconstructed for Siesta Lake, Yosemite National Park, California, using fossil pollen and charcoal from lake sediments. These reconstructions were generated to provide a long-term perspective on drought in the Sierra Nevada. The sedimentary record is in agreement with other long-term records of climate and vegetation from the Sierra Nevada, and the records of climate and fire for the …
Changes in fire regimes since the Last Glacial Maximum
Isotopic analysis of wetland development in the American Southwest
The analysis of stable isotope and elemental fractions of organic material collected from San Bernardino Ciénega was used to understand the history of vegetation composition and climate change within this desert wetland. A 4000-yr record of sediment buildup, based on four 14 C measurements, provides unique opportunities for the study of environmental conditions within an arid landscape and documents climate shifts from drier to wetter conditions …
Late Pleistocene to early Holocene lake level and paleoclimate insights from Stansbury Island, Bonneville basin, Utah
This paper reports on recent multiproxy research conducted to determine the chronology of lake-level fluctuations recorded in sediments from a natural exposure at a classic Bonneville basin site. Grain size, carbonate percentage, magnetic susceptibility, amount of charcoal, and diatom community composition data were collected from the 16 lacustrine units that compose the 122 cm stratigraphic column in Stansbury Gulch. Trends observed in the measu…
Holocene sedimentary and environmental history of an in-channel wetland along the ecotone of the Sonoran and Chihuahuan Desert grasslands
Pollen accumulation in lake sediments during historic spruce beetle disturbances in subalpine forests of southern Utah, USA
Paleoecological reconstructions using lake sediments provide important information about ecological dynamics and forest disturbance processes that occurred prior to the historic period of scientific observation. In high-altitude and high-latitude ecosystems where landscape-scale disturbances recur at time intervals exceeding observation in many regions, e.g. western North America, reconstructed environmental data are essential in providing contex…
Using fire regimes to delineate zones in a high-resolution lake sediment record from the western United States
Paleoenvironmental reconstructions are important for understanding the influence of long-term climate variability on ecosystems and landscape disturbance dynamics. In this paper we explore the linkages among past climate, vegetation, and fire regimes using a high-resolution pollen and charcoal reconstruction from Morris Pond located on the Markagunt Plateau in southwestern Utah, USA. A regime shift detection algorithm was applied to background ch…
Regionalization of fire regimes in the Central Rocky Mountains, USA
Fire is one of the most important natural disturbances in the coniferous forests of the US Rocky Mountains. The Rocky Mountains are separated by a climatic boundary between 40° and 45° N, which we refer to as the central Rocky Mountains (CRM). To determine whether the fire regime from the CRM was more similar to the northern Rocky Mountains (NRM) or southern Rocky Mountains (SRM) during the Holocene, a 12,539-yr-old sediment core from Long Lake, …
A speleothem record of Holocene paleoclimate from the northern Wasatch Mountains, southeast Idaho, USA
Holocene vegetation and fire reconstructions from the Aquarius Plateau, Utah, USA
A season specific paleoclimate record from a northern Wasatch Mountains speleothem and linkages to the pacific
A late Holocene record of disturbance from the northern Rocky Mountains, USA
A multi-proxy record of hydroclimate, vegetation, fire, and post-settlement impacts for a subalpine plateau, central Rocky Mountains, U.S.A
Apparent changes in vegetation distribution, fire, and other disturbance regimes throughout western North America have prompted investigations of the relative importance of human activities and climate change as potential causal mechanisms. Assessing the effects of Euro-American settlement is difficult because climate changes occur on multi-decadal to centennial time scales and require longer time perspectives than historic observations can provi…
A ∼14,500 year fire and sediment history of a desert wetland in New Mexico
How can pollen and geochemical evidence from lake sediments provide context for the climate-mediated bark beetle outbreak occurring in Western North America
Complementary seasonal bias in records of Holocene paleoclimate, Bear River Range, Southeast Idaho
Using sedimentary records to inform the causes of woody plant encroachment in Southwestern US Desert Grasslands
Holocene variability of a climatic boundary in the intermountain west
Do bark beetle remains in lake sediments correspond to severe outbreaks? A review of published and ongoing research
A 14,000-year record of fire, climate, and vegetation from the Bear River Range, southeast Idaho, USA
The vegetation and fire history of the Bear River Range (BRR), Southeast Idaho has been reconstructed from pollen, plant macrofossils, and macroscopic charcoal from lacustrine sediments. Overall, the BRR record shows independent responses of vegetation and fire regime to climate variation. The reconstructions suggest strong seasonal bias from the proxies evaluated, with the pollen record most sensitive to insolation-driven summer temperature tren…
A 1,500-year synthesis of wildfire activity stratified by elevation from the U.S. Rocky Mountains
Reconstruction of the mid-Holocene paleoclimate of the Ecuadorian Andean páramo at Tres Lagunas, Ecuador
Previous paleoclimate studies have suggested a warm/dry event during the mid-Holocene in páramo vegetation of the tropical Andes of South America. However, the timing of the mid-Holocene warm/dry event in Tres Lagunas, Ecuador, remains uncertain, since a previously reported bog core record characterized the warm/dry event during a hiatus in sediment deposition. In order to understand the timing of the warm/dry event in Tres Lagunas in relation to…
Adaptive capacity in social–ecological systems
Late-Holocene seasonal moisture variability
A 3300 year-long reconstruction of paleoenvironmental moisture conditions was constructed from a sediment core from North Gate Bog (NGB) in the northern section of Range Creek Canyon within the Colorado Plateau. The methods used to analyze the record include loss on ignition (LOI), magnetic susceptibility (MS), elemental analysis with X-ray fluorescence (XRF), charcoal influx, isotopic analysis, elemental ratios and pollen percentages, influx, an…
Geology and Paleoclimatology Research (27 obras) · Geography (25 obras) · Geology (23 obras) · Physical geography (21 obras) · Climate change (20 obras) · Holocene (19 obras) · Ecology (18 obras) · Environmental Science (15 obras) · Oceanography (14 obras) · Paleontology (13 obras)