Mark J Lara
Biographic Data
| ID | 6016704 |
|---|---|
| NAME | Mark J Lara |
| GIVEN NAMES | Mark J |
| FAMILY NAME | Lara |
| SIGNATURE | LARA M J |
| AFFILIATIONS | The University of Texas at El Paso |
| ORCID | 0000-0002-4670-7031 |
| VERIFIED | Yes |
| TOTAL WORKS | 8 |
| TOTAL CITATIONS | 6 |
| AUTHOR COUNT | 8 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2011 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 1 |
Meta-analysis of North American Arctic and boreal aboveground biomass datasets: Assessing accuracy, dynamics, and similarities
The North American arctic and boreal regions (ABRs) are rapidly warming and experiencing intensifying disturbances. Accurately quantifying aboveground biomass (AGB) is critical for understanding the impacts of these changes on the carbon cycle and for designing climate change mitigation strategies. Several AGB maps have been developed for the North American ABRs, including recent contributions from National Aeronautics and Space Administration’s …
Impacts of abiotic and biotic factors on tundra productivity near Utqiaġvik, Alaska
Earlier snowmelt, warmer temperatures and herbivory are among the factors that influence high-latitude tundra productivity near the town of Utqiaġvik in northern Alaska. However, our understanding of the potential interactions between these factors is limited. MODIS observations provide cover fractions of vegetation, snow, standing water, and soil, and fractional absorption of photosynthetically active radiation by canopy chlorophyll (fAPAR chl )…
Thermokarst acceleration in Arctic tundra driven by climate change and fire disturbance
Recent warming reverses forty-year decline in catastrophic lake drainage and hastens gradual lake drainage across northern Alaska
Lakes represent as much as ∼25% of the total land surface area in lowland permafrost regions. Though decreasing lake area has become a widespread phenomenon in permafrost regions, our ability to forecast future patterns of lake drainage spanning gradients of space and time remain limited. Here, we modeled the drivers of gradual (steady declining lake area) and catastrophic (temporally abrupt decrease in lake area) lake drainage using 45 years of …
Tundra vegetation change near Barrow, Alaska (1972–2010)
Knowledge of how arctic plant communities will respond to change has been largely derived from plot level experimental manipulation, not from trends of decade time scale environmental observations. This study documents plant community change in 330 marked plots at 33 sites established during the International Biological Program near Barrow, Alaska in 1972. Plots were resampled in 1999, 2008 and 2010 for species cover and presence. Cluster analysi…
Estimated change in tundra ecosystem function near Barrow, Alaska between 1972 and 2010
How the greening of Arctic landscapes manifests as a change in ecosystem structure and function remains largely unknown. This study investigates the likely implications of plant community change on ecosystem function in tundra near Barrow, Alaska. We use structural data from marked plots, established in 1972 and resampled in 1999, 2008 and 2010 to assess plant community change. Ecosystem functional studies were made close to peak growing season i…
Exclusion of brown lemmings reduces vascular plant cover and biomass in Arctic coastal tundra: Resampling of a 50 + year herbivore exclosure experiment near Barrow, Alaska
To determine the role lemmings play in structuring plant communities and their contribution to the 'greening of the Arctic', we measured plant cover and biomass in 50 + year old lemming exclosures and control plots in the coastal tundra near Barrow, Alaska. The response of plant functional types to herbivore exclusion varied among land cover types. In general, the abundance of lichens and bryophytes increased with the exclusion of lemmings, where…
Multi-Decadal Changes in Tundra Environments and Ecosystems: Synthesis of the International Polar Year-Back to the Future Project (IPY-BTF)
Exclusion of brown lemmings reduces vascular plant cover and biomass in Arctic coastal tundra: Resampling of a 50 + year herbivore exclosure experiment near Barrow, Alaska
To determine the role lemmings play in structuring plant communities and their contribution to the 'greening of the Arctic', we measured plant cover and biomass in 50 + year old lemming exclosures and control plots in the coastal tundra near Barrow, Alaska. The response of plant functional types to herbivore exclusion varied among land cover types. In general, the abundance of lichens and bryophytes increased with the exclusion of lemmings, where…
Multi-Decadal Changes in Tundra Environments and Ecosystems: Synthesis of the International Polar Year-Back to the Future Project (IPY-BTF)
Tundra vegetation change near Barrow, Alaska (1972–2010)
Knowledge of how arctic plant communities will respond to change has been largely derived from plot level experimental manipulation, not from trends of decade time scale environmental observations. This study documents plant community change in 330 marked plots at 33 sites established during the International Biological Program near Barrow, Alaska in 1972. Plots were resampled in 1999, 2008 and 2010 for species cover and presence. Cluster analysi…
Estimated change in tundra ecosystem function near Barrow, Alaska between 1972 and 2010
How the greening of Arctic landscapes manifests as a change in ecosystem structure and function remains largely unknown. This study investigates the likely implications of plant community change on ecosystem function in tundra near Barrow, Alaska. We use structural data from marked plots, established in 1972 and resampled in 1999, 2008 and 2010 to assess plant community change. Ecosystem functional studies were made close to peak growing season i…
Thermokarst acceleration in Arctic tundra driven by climate change and fire disturbance
Recent warming reverses forty-year decline in catastrophic lake drainage and hastens gradual lake drainage across northern Alaska
Lakes represent as much as ∼25% of the total land surface area in lowland permafrost regions. Though decreasing lake area has become a widespread phenomenon in permafrost regions, our ability to forecast future patterns of lake drainage spanning gradients of space and time remain limited. Here, we modeled the drivers of gradual (steady declining lake area) and catastrophic (temporally abrupt decrease in lake area) lake drainage using 45 years of …
Impacts of abiotic and biotic factors on tundra productivity near Utqiaġvik, Alaska
Earlier snowmelt, warmer temperatures and herbivory are among the factors that influence high-latitude tundra productivity near the town of Utqiaġvik in northern Alaska. However, our understanding of the potential interactions between these factors is limited. MODIS observations provide cover fractions of vegetation, snow, standing water, and soil, and fractional absorption of photosynthetically active radiation by canopy chlorophyll (fAPAR chl )…
Meta-analysis of North American Arctic and boreal aboveground biomass datasets: Assessing accuracy, dynamics, and similarities
The North American arctic and boreal regions (ABRs) are rapidly warming and experiencing intensifying disturbances. Accurately quantifying aboveground biomass (AGB) is critical for understanding the impacts of these changes on the carbon cycle and for designing climate change mitigation strategies. Several AGB maps have been developed for the North American ABRs, including recent contributions from National Aeronautics and Space Administration’s …
Climate change and permafrost (8 works) · Environmental Science (7 works) · Climate change (6 works) · Cryospheric studies and observations (6 works) · Ecology (6 works) · Geography (6 works) · Physical geography (6 works) · Tundra (6 works) · Arctic (5 works) · Biology (4 works)