Climate Change Is Likely to Alter Future Wolf – Moose – Forest Interactions at Isle Royale National Park, United States
We evaluated how climate change and variable rates of moose browsing intensity, as they relate to wolf predation, might affect the forests of Isle Royale National Park, Michigan, United States by conducting a modeling experiment. The experiment consisted of contrasting three different scenarios of w...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2020-09-01
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| Series: | Frontiers in Ecology and Evolution |
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| Online Access: | https://www.frontiersin.org/article/10.3389/fevo.2020.543915/full |
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| author | Nathan R. De Jager Jason J. Rohweder Matthew J. Duveneck |
| author_facet | Nathan R. De Jager Jason J. Rohweder Matthew J. Duveneck |
| author_sort | Nathan R. De Jager |
| collection | DOAJ |
| description | We evaluated how climate change and variable rates of moose browsing intensity, as they relate to wolf predation, might affect the forests of Isle Royale National Park, Michigan, United States by conducting a modeling experiment. The experiment consisted of contrasting three different scenarios of wolf management and with a static (current conditions) and changing climate (high emissions). Our results indicate that the interactive effects of wolf predation and climate change are likely to be temporally variable and dependent on biogeographic and forest successional processes. During the first 50 years of 120-year simulations, when the effects of climate change were less impactful, higher simulated rates of predation by wolves reduced moose population densities, resulting in greater forest biomass and higher carrying capacities for moose. However, over the longer term, early successional and highly palatable aspen and birch forests transitioned to late successional spruce and fir forests, regardless of climate or predation intensity. After 50 years, the effects of climate change and predation were driven by effects on balsam fir, a late successional conifer species that is fed on by moose. High-intensity predation of moose allowed balsam fir to persist over the long term but only under the static climate scenario. The climate change scenario caused a reduction in balsam fir and the other boreal species that moose currently feed on, and the few temperate species found on this isolated island were unable to compensate for such reductions, causing strong declines in total forest biomass. The direct effects of moose population management via reintroduction of wolves may become increasingly ineffective as the climate continues to warm because the productivity of boreal plant species may not be sufficient to support a moose population, and the isolation of the island from mainland temperate tree species may reduce the likelihood of compensatory species migrations. |
| first_indexed | 2024-12-13T09:49:08Z |
| format | Article |
| id | doaj.art-ec841ecd43b8422a98fd73bf6023ac5b |
| institution | Directory Open Access Journal |
| issn | 2296-701X |
| language | English |
| last_indexed | 2024-12-13T09:49:08Z |
| publishDate | 2020-09-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Ecology and Evolution |
| spelling | doaj.art-ec841ecd43b8422a98fd73bf6023ac5b2022-12-21T23:51:59ZengFrontiers Media S.A.Frontiers in Ecology and Evolution2296-701X2020-09-01810.3389/fevo.2020.543915543915Climate Change Is Likely to Alter Future Wolf – Moose – Forest Interactions at Isle Royale National Park, United StatesNathan R. De Jager0Jason J. Rohweder1Matthew J. Duveneck2U.S. Geological Survey, Upper Midwest Environmental Sciences Center, La Crosse, WI, United StatesU.S. Geological Survey, Upper Midwest Environmental Sciences Center, La Crosse, WI, United StatesHarvard Forest, Harvard University, Petersham, MA, United StatesWe evaluated how climate change and variable rates of moose browsing intensity, as they relate to wolf predation, might affect the forests of Isle Royale National Park, Michigan, United States by conducting a modeling experiment. The experiment consisted of contrasting three different scenarios of wolf management and with a static (current conditions) and changing climate (high emissions). Our results indicate that the interactive effects of wolf predation and climate change are likely to be temporally variable and dependent on biogeographic and forest successional processes. During the first 50 years of 120-year simulations, when the effects of climate change were less impactful, higher simulated rates of predation by wolves reduced moose population densities, resulting in greater forest biomass and higher carrying capacities for moose. However, over the longer term, early successional and highly palatable aspen and birch forests transitioned to late successional spruce and fir forests, regardless of climate or predation intensity. After 50 years, the effects of climate change and predation were driven by effects on balsam fir, a late successional conifer species that is fed on by moose. High-intensity predation of moose allowed balsam fir to persist over the long term but only under the static climate scenario. The climate change scenario caused a reduction in balsam fir and the other boreal species that moose currently feed on, and the few temperate species found on this isolated island were unable to compensate for such reductions, causing strong declines in total forest biomass. The direct effects of moose population management via reintroduction of wolves may become increasingly ineffective as the climate continues to warm because the productivity of boreal plant species may not be sufficient to support a moose population, and the isolation of the island from mainland temperate tree species may reduce the likelihood of compensatory species migrations.https://www.frontiersin.org/article/10.3389/fevo.2020.543915/fullbalsam firclimate changemoosetrophic cascadewolf |
| spellingShingle | Nathan R. De Jager Jason J. Rohweder Matthew J. Duveneck Climate Change Is Likely to Alter Future Wolf – Moose – Forest Interactions at Isle Royale National Park, United States Frontiers in Ecology and Evolution balsam fir climate change moose trophic cascade wolf |
| title | Climate Change Is Likely to Alter Future Wolf – Moose – Forest Interactions at Isle Royale National Park, United States |
| title_full | Climate Change Is Likely to Alter Future Wolf – Moose – Forest Interactions at Isle Royale National Park, United States |
| title_fullStr | Climate Change Is Likely to Alter Future Wolf – Moose – Forest Interactions at Isle Royale National Park, United States |
| title_full_unstemmed | Climate Change Is Likely to Alter Future Wolf – Moose – Forest Interactions at Isle Royale National Park, United States |
| title_short | Climate Change Is Likely to Alter Future Wolf – Moose – Forest Interactions at Isle Royale National Park, United States |
| title_sort | climate change is likely to alter future wolf moose forest interactions at isle royale national park united states |
| topic | balsam fir climate change moose trophic cascade wolf |
| url | https://www.frontiersin.org/article/10.3389/fevo.2020.543915/full |
| work_keys_str_mv | AT nathanrdejager climatechangeislikelytoalterfuturewolfmooseforestinteractionsatisleroyalenationalparkunitedstates AT jasonjrohweder climatechangeislikelytoalterfuturewolfmooseforestinteractionsatisleroyalenationalparkunitedstates AT matthewjduveneck climatechangeislikelytoalterfuturewolfmooseforestinteractionsatisleroyalenationalparkunitedstates |