Image_1_Long-term monitoring in the boreal forest reveals high spatio-temporal variability among primary ecosystem constituents.jpeg
The boreal forest, the world’s largest terrestrial biome, is undergoing dramatic changes owing to anthropogenic stressors, including those of climate change. To track terrestrial ecosystem changes through space and time, robust monitoring programs are needed that survey a variety of ecosystem consti...
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Online Access: | https://doi.org/10.3389/fevo.2023.1187222.s002 https://figshare.com/articles/figure/Image_1_Long-term_monitoring_in_the_boreal_forest_reveals_high_spatio-temporal_variability_among_primary_ecosystem_constituents_jpeg/24191391 |
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ftfrontimediafig:oai:figshare.com:article/24191391 2023-10-25T01:38:15+02:00 Image_1_Long-term monitoring in the boreal forest reveals high spatio-temporal variability among primary ecosystem constituents.jpeg Charles J. Krebs Stan Boutin Rudy Boonstra Dennis L. Murray Thomas S. Jung Mark O’Donoghue B. Scott Gilbert Piia M. Kukka Shawn D. Taylor T. Morgan Ryan Drummond Anthony R. E. Sinclair Alice J. Kenney 2023-09-25T13:40:48Z https://doi.org/10.3389/fevo.2023.1187222.s002 https://figshare.com/articles/figure/Image_1_Long-term_monitoring_in_the_boreal_forest_reveals_high_spatio-temporal_variability_among_primary_ecosystem_constituents_jpeg/24191391 unknown doi:10.3389/fevo.2023.1187222.s002 https://figshare.com/articles/figure/Image_1_Long-term_monitoring_in_the_boreal_forest_reveals_high_spatio-temporal_variability_among_primary_ecosystem_constituents_jpeg/24191391 CC BY 4.0 Evolutionary Biology Ecology Invasive Species Ecology Landscape Ecology Conservation and Biodiversity Behavioural Ecology Community Ecology (excl. Invasive Species Ecology) Ecological Physiology Freshwater Ecology Marine and Estuarine Ecology (incl. Marine Ichthyology) Population Ecology Terrestrial Ecology Yukon boreal forest monitoring snowshoe hares boom–bust cycle Image Figure 2023 ftfrontimediafig https://doi.org/10.3389/fevo.2023.1187222.s002 2023-09-27T23:13:39Z The boreal forest, the world’s largest terrestrial biome, is undergoing dramatic changes owing to anthropogenic stressors, including those of climate change. To track terrestrial ecosystem changes through space and time, robust monitoring programs are needed that survey a variety of ecosystem constituents. We monitored white spruce (Picea glauca) cone crops, berry (Empetrum nigrum, Shepherdia canadensis) production, above-ground mushroom abundance, and the abundance of small mammals (Clethrionomys rutilus, Peromyscus maniculatus), North American red squirrels (Tamiascirus hudsonicus), snowshoe hares (Lepus americanus), and carnivores (Lynx canadensis, Canis latrans, Vulpes vulpes, Martes americana, Mustela erminea) across 5 sites in the Yukon, Canada. Monitoring began in 1973 at Lhù’ààn Mân’ (Kluane Lake) and additional protocols were added until a complete sequence was fixed in 2005 at all 5 sites and continued until 2022. White spruce cone counts show mast years at 3–7-year intervals. Ground berries and soapberry counts were highly variable among sites and counts did not correlate among sites or between years for different species. Red-backed voles showed clear 3–4-year cycles at Kluane and probably at the Mayo and Watson Lake sites, but showed only annual cycles in Whitehorse and Faro. Snowshoe hares fluctuated in 9–10-year cycles in a travelling wave, peaking one year earlier at Watson Lake but in synchrony at all other sites, with no clear sign of peak density changing or cyclic attenuation over the last 50 years. Red squirrel numbers at Kluane exhibit marked inter-year variability, driven mainly by episodic white spruce cone crops and predation from Canada lynx and coyotes as hare densities undergo cyclic decline. Snow track counts to index mammalian predators have been conducted on our Kluane and Mayo sites, indicating that lynx numbers rise and fall with a 1–2-year lag at these two sites, tracking the hare cycle. Coyotes and lynx at Kluane peak together following the hare cycle, but coyote counts are ... Still Image Empetrum nigrum Faro Martes americana Mayo Watson Lake Whitehorse Lynx Yukon Frontiers: Figshare Canada Faro ENVELOPE(-133.353,-133.353,62.231,62.231) Kluane Lake ENVELOPE(-138.773,-138.773,61.261,61.261) Yukon |
institution |
Open Polar |
collection |
Frontiers: Figshare |
op_collection_id |
ftfrontimediafig |
language |
unknown |
topic |
Evolutionary Biology Ecology Invasive Species Ecology Landscape Ecology Conservation and Biodiversity Behavioural Ecology Community Ecology (excl. Invasive Species Ecology) Ecological Physiology Freshwater Ecology Marine and Estuarine Ecology (incl. Marine Ichthyology) Population Ecology Terrestrial Ecology Yukon boreal forest monitoring snowshoe hares boom–bust cycle |
spellingShingle |
Evolutionary Biology Ecology Invasive Species Ecology Landscape Ecology Conservation and Biodiversity Behavioural Ecology Community Ecology (excl. Invasive Species Ecology) Ecological Physiology Freshwater Ecology Marine and Estuarine Ecology (incl. Marine Ichthyology) Population Ecology Terrestrial Ecology Yukon boreal forest monitoring snowshoe hares boom–bust cycle Charles J. Krebs Stan Boutin Rudy Boonstra Dennis L. Murray Thomas S. Jung Mark O’Donoghue B. Scott Gilbert Piia M. Kukka Shawn D. Taylor T. Morgan Ryan Drummond Anthony R. E. Sinclair Alice J. Kenney Image_1_Long-term monitoring in the boreal forest reveals high spatio-temporal variability among primary ecosystem constituents.jpeg |
topic_facet |
Evolutionary Biology Ecology Invasive Species Ecology Landscape Ecology Conservation and Biodiversity Behavioural Ecology Community Ecology (excl. Invasive Species Ecology) Ecological Physiology Freshwater Ecology Marine and Estuarine Ecology (incl. Marine Ichthyology) Population Ecology Terrestrial Ecology Yukon boreal forest monitoring snowshoe hares boom–bust cycle |
description |
The boreal forest, the world’s largest terrestrial biome, is undergoing dramatic changes owing to anthropogenic stressors, including those of climate change. To track terrestrial ecosystem changes through space and time, robust monitoring programs are needed that survey a variety of ecosystem constituents. We monitored white spruce (Picea glauca) cone crops, berry (Empetrum nigrum, Shepherdia canadensis) production, above-ground mushroom abundance, and the abundance of small mammals (Clethrionomys rutilus, Peromyscus maniculatus), North American red squirrels (Tamiascirus hudsonicus), snowshoe hares (Lepus americanus), and carnivores (Lynx canadensis, Canis latrans, Vulpes vulpes, Martes americana, Mustela erminea) across 5 sites in the Yukon, Canada. Monitoring began in 1973 at Lhù’ààn Mân’ (Kluane Lake) and additional protocols were added until a complete sequence was fixed in 2005 at all 5 sites and continued until 2022. White spruce cone counts show mast years at 3–7-year intervals. Ground berries and soapberry counts were highly variable among sites and counts did not correlate among sites or between years for different species. Red-backed voles showed clear 3–4-year cycles at Kluane and probably at the Mayo and Watson Lake sites, but showed only annual cycles in Whitehorse and Faro. Snowshoe hares fluctuated in 9–10-year cycles in a travelling wave, peaking one year earlier at Watson Lake but in synchrony at all other sites, with no clear sign of peak density changing or cyclic attenuation over the last 50 years. Red squirrel numbers at Kluane exhibit marked inter-year variability, driven mainly by episodic white spruce cone crops and predation from Canada lynx and coyotes as hare densities undergo cyclic decline. Snow track counts to index mammalian predators have been conducted on our Kluane and Mayo sites, indicating that lynx numbers rise and fall with a 1–2-year lag at these two sites, tracking the hare cycle. Coyotes and lynx at Kluane peak together following the hare cycle, but coyote counts are ... |
format |
Still Image |
author |
Charles J. Krebs Stan Boutin Rudy Boonstra Dennis L. Murray Thomas S. Jung Mark O’Donoghue B. Scott Gilbert Piia M. Kukka Shawn D. Taylor T. Morgan Ryan Drummond Anthony R. E. Sinclair Alice J. Kenney |
author_facet |
Charles J. Krebs Stan Boutin Rudy Boonstra Dennis L. Murray Thomas S. Jung Mark O’Donoghue B. Scott Gilbert Piia M. Kukka Shawn D. Taylor T. Morgan Ryan Drummond Anthony R. E. Sinclair Alice J. Kenney |
author_sort |
Charles J. Krebs |
title |
Image_1_Long-term monitoring in the boreal forest reveals high spatio-temporal variability among primary ecosystem constituents.jpeg |
title_short |
Image_1_Long-term monitoring in the boreal forest reveals high spatio-temporal variability among primary ecosystem constituents.jpeg |
title_full |
Image_1_Long-term monitoring in the boreal forest reveals high spatio-temporal variability among primary ecosystem constituents.jpeg |
title_fullStr |
Image_1_Long-term monitoring in the boreal forest reveals high spatio-temporal variability among primary ecosystem constituents.jpeg |
title_full_unstemmed |
Image_1_Long-term monitoring in the boreal forest reveals high spatio-temporal variability among primary ecosystem constituents.jpeg |
title_sort |
image_1_long-term monitoring in the boreal forest reveals high spatio-temporal variability among primary ecosystem constituents.jpeg |
publishDate |
2023 |
url |
https://doi.org/10.3389/fevo.2023.1187222.s002 https://figshare.com/articles/figure/Image_1_Long-term_monitoring_in_the_boreal_forest_reveals_high_spatio-temporal_variability_among_primary_ecosystem_constituents_jpeg/24191391 |
long_lat |
ENVELOPE(-133.353,-133.353,62.231,62.231) ENVELOPE(-138.773,-138.773,61.261,61.261) |
geographic |
Canada Faro Kluane Lake Yukon |
geographic_facet |
Canada Faro Kluane Lake Yukon |
genre |
Empetrum nigrum Faro Martes americana Mayo Watson Lake Whitehorse Lynx Yukon |
genre_facet |
Empetrum nigrum Faro Martes americana Mayo Watson Lake Whitehorse Lynx Yukon |
op_relation |
doi:10.3389/fevo.2023.1187222.s002 https://figshare.com/articles/figure/Image_1_Long-term_monitoring_in_the_boreal_forest_reveals_high_spatio-temporal_variability_among_primary_ecosystem_constituents_jpeg/24191391 |
op_rights |
CC BY 4.0 |
op_doi |
https://doi.org/10.3389/fevo.2023.1187222.s002 |
_version_ |
1780733238257385472 |