scholarly journals Long-term data from a small mammal community reveals loss of diversity and potential effects of local climate change

2016 ◽  
pp. zow109 ◽  
Author(s):  
Simone Santoro ◽  
Cristina Sanchez-Suarez ◽  
Carlos Rouco ◽  
L. Javier Palomo ◽  
M. Carmen Fernández ◽  
...  
Keyword(s):  
Climate Change ◽  
Small Mammal ◽  
Local Climate ◽  
Small Mammal Community ◽  
Local Climate Change ◽  
Loss Of Diversity ◽  
Mammal Community ◽  
Term Data

Long-term Dynamics of an Early Successional Small Mammal Community

1990 ◽  
Vol 123 (2) ◽  
pp. 372 ◽  
Author(s):  
Robert K. Swihart ◽  
Norman A. Slade
Keyword(s):  
Small Mammal ◽  
Small Mammal Community ◽  
Mammal Community

scholarly journals Impact of climate change on the small mammal community of the Yukon boreal forest

2019 ◽  
Vol 14 (6) ◽  
pp. 528-541 ◽  
Author(s):  
Charles J. KREBS ◽  
Rudy BOONSTRA ◽  
B. Scott GILBERT ◽  
Alice J. KENNEY ◽  
Stan BOUTIN
Keyword(s):  
Climate Change ◽  
Boreal Forest ◽  
Small Mammal ◽  
Impact Of Climate Change ◽  
Small Mammal Community ◽  
Mammal Community

scholarly journals Voles and weasels in the boreal Fennoscandian small mammal community: what happens if the least weasel disappears due to climate change?

2019 ◽  
Vol 14 (4) ◽  
pp. 327-340 ◽  
Author(s):  
Hannu YLÖNEN ◽  
Marko HAAPAKOSKI ◽  
Thorbjörn SIEVERT ◽  
Janne SUNDELL
Keyword(s):  
Climate Change ◽  
Small Mammal ◽  
Least Weasel ◽  
Small Mammal Community ◽  
Mammal Community

On raptors and rodents: testing the ecological fidelity and spatiotemporal resolution of cave death assemblages

Paleobiology ◽  
2010 ◽  
Vol 36 (1) ◽  
pp. 137-160 ◽  
Author(s):  
Rebecca C. Terry
Keyword(s):  
Small Mammal ◽  
Landscape Scale ◽  
Skeletal Remains ◽  
Common Mechanism ◽  
Time Averaging ◽  
Ecological Information ◽  
Death Assemblages ◽  
Small Mammal Community ◽  
Mammal Community

Natural accumulations of skeletal remains represent a valuable source of ecological data for paleontologists and neontologists alike. Use of these records requires a quantitative assessment of the degree to which potential biasing factors affect how accurately ecological information from the living community is recorded in the sedimentary record. This has been a major focus in recent years for taphonomists working with marine records, yet terrestrial systems have remained virtually unstudied—particularly communities of small-bodied taxa. Our ability to assess the potential origins and effects of postmortem bias in terrestrial skeletal assemblages (both modern and fossil) has therefore been limited. Predation is a common mechanism by which small-mammal skeletal remains are concentrated; raptors regurgitate the remains of their small-mammal prey in pellets rich in skeletal material, which accumulate below long-term roosting sites, especially in protected areas such as caves and rock shelters. Here I compare small-mammal death assemblages concentrated via owl predation at Two Ledges Chamber, a long-term owl cave roost in northwestern Nevada, with data from modern trapping surveys to evaluate (1) their ecological fidelity to the modern small-mammal community, (2) the effects of temporal variation and time-averaging (over months to centuries) on live-dead agreement, and (3) how spatial averaging affects the landscape-scale picture of the small-mammal community as reconstructed from dead remains. Despite potential obstacles to the recovery of ecological information from skeletal deposits generated via predation, I find high live-dead agreement across all ecological metrics and all temporal comparisons. I also find that the effects of time-averaging (specifically increased species richness of the death assemblage) become significant only at the century scale. Finally, I combine a mixing model approach with a principal coordinates analysis to show that the owls at Two Ledges Chamber sample from all habitats present in the immediate vicinity of the cave, producing a high-fidelity snapshot of the community that is spatially integrated at the local landscape scale.

scholarly journals Heatwaves and Summer Urban Heat Islands: A Daily Cycle Approach to Unveil the Urban Thermal Signal Changes in Lisbon, Portugal

Atmosphere ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 292 ◽  
Author(s):  
Ana Oliveira ◽  
António Lopes ◽  
Ezequiel Correia ◽  
Samuel Niza ◽  
Amílcar Soares
Keyword(s):  
Climate Change ◽  
Air Temperature ◽  
Wind Direction ◽  
Urban Heat Islands ◽  
Daily Cycle ◽  
Local Climate ◽  
Thermal Signal ◽  
Air Temperatures ◽  
Local Climate Change ◽  
Urban Heat

Lisbon is a European Mediterranean city, greatly exposed to heatwaves (HW), according to recent trends and climate change prospects. Considering the Atlantic influence, air temperature observations from Lisbon’s mesoscale network are used to investigate the interactions between background weather and the urban thermal signal (UTS) in summer. Days are classified according to the prevailing regional wind direction, and hourly UTS is compared between HW and non-HW conditions. Northern-wind days predominate, revealing greater maximum air temperatures (up to 40 °C) and greater thermal amplitudes (approximately 10 °C), and account for 37 out of 49 HW days; southern-wind days have milder temperatures, and no HWs occur. Results show that the wind direction groups are significantly different. While southern-wind days have minor UTS variations, northern-wind days have a consistent UTS daily cycle: a diurnal urban cooling island (UCI) (often lower than –1.0 °C), a late afternoon peak urban heat island (UHI) (occasionally surpassing 4.0 °C), and a stable nocturnal UHI (1.5 °C median intensity). UHI/UCI intensities are not significantly different between HW and non-HW conditions, although the synoptic influence is noted. Results indicate that, in Lisbon, the UHI intensity does not increase during HW events, although it is significantly affected by wind. As such, local climate change adaptation strategies must be based on scenarios that account for the synergies between potential changes in regional air temperature and wind.

scholarly journals Local climate change signals and changes in climate extremes in a typical Sahel catchment: the case of Dano catchment, Burkina Faso

2021 ◽  
pp. 100285
Author(s):  
Gloria C. Okafor ◽  
Isaac Larbi ◽  
Emmanuel C. Chukwuma ◽  
Clement Nyamekye ◽  
Andrew Manoba Limantol ◽  
...  
Keyword(s):  
Climate Change ◽  
Burkina Faso ◽  
Climate Extremes ◽  
Local Climate ◽  
Local Climate Change

Changes in small mammal communities after logging in north-central Ontario

1983 ◽  
Vol 61 (5) ◽  
pp. 970-980 ◽  
Author(s):  
Arthur M. Martell
Keyword(s):  
Small Mammals ◽  
Small Mammal ◽  
Vegetative Cover ◽  
North Central ◽  
Clear Cut ◽  
Clear Cutting ◽  
Small Mammal Community ◽  
Small Mammal Communities ◽  
Mammal Community ◽  
Mammal Communities

Changes in small mammal communities following logging were monitored in clear-cut and strip-cut upland black spruce (Picea mariana) stands and in selectively cut mixed wood stands in north-central Ontario. Clear-cutting and subsequent scarification essentially eliminated the vegetative cover. Much of the ground cover recovered within 5 years and shrubs within 12 years, but mosses and lichens took much longer. The small mammal community in both clear-cut and strip-cut stands changed over the first three years after logging from one dominated by southern red-backed voles (Clethrionomys gapperi) to one dominated by deer mice (Peromyscus maniculatus) and then remained relatively stable for up to 13 years after harvest. That shift was not apparent in selectively cut mixed wood stands where the composition of the small mammal community was similar between uncut stands and stands 4–23 years after harvest. There was relatively little change in total numbers of small mammals after logging. In general, the diversity and evenness of small mammals increased or remained stable in the first 1–3 years following harvest, decreased on older (3–16 years) cuts, and then increased to values similar to those in uncut stands on the oldest (19–23 years) cuts.

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