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- Michigan (2)
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Articles 1 - 20 of 20
Full-Text Articles in Ecology and Evolutionary Biology
Ecological Studies Of Wolves On Isle Royale, Sarah Hoy, Rolf O. Peterson, John A. Vucetich
Ecological Studies Of Wolves On Isle Royale, Sarah Hoy, Rolf O. Peterson, John A. Vucetich
Ecological Studies of Wolves on Isle Royale
Annual Report 2022-2023
White-Tailed Deer In A Winter-Wonderland: Long-Term Deer Yard Use And Methodological Considerations For Ungulate Fecal Dna Metabarcoding, Melanie A. Ottino
White-Tailed Deer In A Winter-Wonderland: Long-Term Deer Yard Use And Methodological Considerations For Ungulate Fecal Dna Metabarcoding, Melanie A. Ottino
Dissertations, Master's Theses and Master's Reports
Northern white-tailed deer (Odocoileus virginianus) mitigate the increased energetic costs of severe winter conditions through obligate migration to densely congregated areas with abundant conifer cover, a behavior referred to as yarding. “Deer yards” in the Western Upper Peninsula (UP) of Michigan are principally located within the reduced snowpack and increased ambient temperature microclimates of densely canopied eastern hemlock (Tsuga canadensis) stands, but specific drivers of long-term site fidelity and utilization are largely uncharacterized. As an important game species of high economic and cultural value and a keystone herbivore with critical impact of plant community composition and structure, identifying winter yarding …
Ecological Studies Of Wolves On Isle Royale Annual Report 2021-2022, Sarah R. Hoy, Rolf O. Peterson, John A. Vucetich
Ecological Studies Of Wolves On Isle Royale Annual Report 2021-2022, Sarah R. Hoy, Rolf O. Peterson, John A. Vucetich
Ecological Studies of Wolves on Isle Royale
Annual Report 2021-2022
Effects Of Dissimilar Silvicultural Techniques On Small Mammal Communities In Michigan's Upper Peninsula, Breanna R. Gusick
Effects Of Dissimilar Silvicultural Techniques On Small Mammal Communities In Michigan's Upper Peninsula, Breanna R. Gusick
Dissertations, Master's Theses and Master's Reports
Small mammal populations, and predators reliant upon them as food resources, are often challenged by conflicting objectives of timber production and maintenance of quality habitat. With over 70% of the landscape forested, and nearly one-third of the land privately owned, Michigan’s Upper Peninsula (UP) is a matrix of independent management strategies. To assess the effects of various silvicultural regeneration methods on small mammal populations in the Upper Peninsula, we trapped small mammals in experimental silviculture plots, whereby treatments varied by regeneration method (amount of residual canopy cover) and site preparation (i.e., control, tip-up, and scarification), and deer exclosures. We used …
Display Site Selection By Male Ruffed Grouse In The Upper Great Lakes Region, Seth Finkel
Display Site Selection By Male Ruffed Grouse In The Upper Great Lakes Region, Seth Finkel
Dissertations, Master's Theses and Master's Reports
The Ruffed Grouse (Bonasa umbellus) is widely known for its characteristic territorial drumming display. In this study, I used ruffed grouse drumming survey data from Minnesota and Michigan, in a series of mixed logistic models, to identify drivers of drumming log selection by reproductive male ruffed grouse. I collected drumming stage data utilizing a paired-random sampling structure. I used information theoretic model selection to examine three sets of a priori mixed logistic models: one for the entirety of my Minnesota dataset, one consisting of stages identified in aspen stands in Minnesota, and one for my Michigan dataset. In …
Ecological Studies Of Wolves On Isle Royale Annual Report 2020-2021, John A. Vucetich, Rolf O. Peterson, Sarah R. Hoy
Ecological Studies Of Wolves On Isle Royale Annual Report 2020-2021, John A. Vucetich, Rolf O. Peterson, Sarah R. Hoy
Ecological Studies of Wolves on Isle Royale
Annual Report 2020-2021
Regional Impacts Of Invasive Species And Climate Change On Black Ash Wetlands, Joseph Shannon
Regional Impacts Of Invasive Species And Climate Change On Black Ash Wetlands, Joseph Shannon
Dissertations, Master's Theses and Master's Reports
For more than a decade intensive research on the ecohydrology of black ash wetland ecosystems has been performed to understand these systems before they are drastically altered by the invasive species, emerald ash borer (EAB). In that time there has been little research aimed at the scale and persistence of the alterations. Three distinct but related research articles will be presented to demonstrate a method for moderate resolution mapping of black ash across its entire range, understand the relative impacts of EAB and climate change on probable future wetland conditions, and develop an experimental and modeling approach to quantify and …
Spatiotemporal Variability In Winter Severity: Consequences For White-Tailed Deer Populations And Habitat Sustainability, Grace Parikh
Spatiotemporal Variability In Winter Severity: Consequences For White-Tailed Deer Populations And Habitat Sustainability, Grace Parikh
Dissertations, Master's Theses and Master's Reports
Winter in the northern Great Lakes presents a suite of challenging conditions for animals, in terms of limited food availability and increased energetic cost of locomotion and thermoregulation. Variable winter severity is liable to cause interannual fluctuations in habitat viability and use by animals, in addition to modulating physiological responses in animals to conserve energy. For example, white-tailed deer (Odocoileus virginianus) congregate at high densities under eastern hemlock (Tsuga canadensis) or northern white-cedar (Thuja occidentalis) stands, which provide forage, thermal cover, reduced snow depth, and enhanced vigilance. However, a suite of climatic, edaphic, and …
Plant Community Response To Novel Silvicultural Treatments In Great Lakes Northern Hardwoods, Stefan F. Hupperts
Plant Community Response To Novel Silvicultural Treatments In Great Lakes Northern Hardwoods, Stefan F. Hupperts
Dissertations, Master's Theses and Master's Reports
The objective of this dissertation is to assess plant community response across a range of silvicultural disturbances and test ecological hypotheses to better inform ecologists and forest managers. To provide context for the utility of revising silvicultural systems, I review natural disturbance regimes and historical practices that have shaped contemporary Great Lakes northern hardwood forests (Chapter 2). Further, I identify important ways to expand the silvicultural toolbox and better emulate natural disturbance regimes. Building on this theoretical underpinning, I investigate the initial regeneration and plant community response to two novel silvicultural experiments: the Northern Hardwood Experiment for Enhancing Diversity (NHSEED) …
Ecological Studies Of Wolves On Isle Royale, 2017-2018, Rolf O. Peterson, John A. Vucetich, Sarah R. Hoy
Ecological Studies Of Wolves On Isle Royale, 2017-2018, Rolf O. Peterson, John A. Vucetich, Sarah R. Hoy
Ecological Studies of Wolves on Isle Royale
Annual Report 2017-2018
Ecological Studies Of Wolves On Isle Royale, 2015-2016, Rolf O. Peterson, John A. Vucetich
Ecological Studies Of Wolves On Isle Royale, 2015-2016, Rolf O. Peterson, John A. Vucetich
Ecological Studies of Wolves on Isle Royale
Annual Report 2015-2016
Ecological Studies Of Wolves On Isle Royale, 2014-2015, John A. Vucetich, Rolf O. Peterson
Ecological Studies Of Wolves On Isle Royale, 2014-2015, John A. Vucetich, Rolf O. Peterson
Ecological Studies of Wolves on Isle Royale
Annual Report 2014-2015
Investigating Within-Canopy Variation Of Functional Traits And Cellular Structure Of Sugar Maple (Acer Saccharum) Leaves, Adam P. Coble
Investigating Within-Canopy Variation Of Functional Traits And Cellular Structure Of Sugar Maple (Acer Saccharum) Leaves, Adam P. Coble
Dissertations, Master's Theses and Master's Reports - Open
Patterns of increasing leaf mass per area (LMA), area-based leaf nitrogen (Narea), and carbon isotope composition (δ13C) with increasing height in the canopy have been attributed to light gradients or hydraulic limitation in tall trees. Theoretical optimal distributions of LMA and Narea that scale with light maximize canopy photosynthesis; however, sub-optimal distributions are often observed due to hydraulic constraints on leaf development. Using observational, experimental, and modeling approaches, we investigated the response of leaf functional traits (LMA, density, thickness, and leaf nitrogen), leaf carbon isotope composition (δ13C), and cellular structure to light availability, height, and leaf water …
Ecological Studies Of Wolves On Isle Royale, 2013-2014, John A. Vucetich, Rolf O. Peterson
Ecological Studies Of Wolves On Isle Royale, 2013-2014, John A. Vucetich, Rolf O. Peterson
Ecological Studies of Wolves on Isle Royale
Annual Report 2013-2014
Ecological Studies Of Wolves On Isle Royale, 2012-2013, John A. Vucetich, Rolf O. Peterson
Ecological Studies Of Wolves On Isle Royale, 2012-2013, John A. Vucetich, Rolf O. Peterson
Ecological Studies of Wolves on Isle Royale
Annual Report 2012-2013
Carbon In The Peatlands In The Great Lakes Region, Cassandra A. Ott
Carbon In The Peatlands In The Great Lakes Region, Cassandra A. Ott
Dissertations, Master's Theses and Master's Reports - Open
Peatlands cover only ~3% of the global land area, but store ~30% of the worlds' soil carbon. There are many different peat types that store different amounts of carbon. Most inventories of carbon storage in northern peatlands have been conducted in the expansive Sphagnum dominated peatlands. Although, northern white cedar peatlands (NW cedar, Thuja occidentalis L.) are also one of the most common peatland types in the Great Lakes Region, occupying more than 2 million hectares. NW cedar swamps are understudied, due in part to the difficulties in collection methods. General lack of rapid and consistent sampling methods has also …
Spatial And Temporal Patterns In Ungulate-Ecosystem Interactions, Bryan D. Murray
Spatial And Temporal Patterns In Ungulate-Ecosystem Interactions, Bryan D. Murray
Dissertations, Master's Theses and Master's Reports - Open
Ungulates are important components of a variety of ecosystems worldwide. This dissertation integrates aspects of ungulate and forest ecology to increase our understanding of how they work together in ways that are of interest to natural resource managers, educators, and those who are simply curious about nature. Although animal ecology and ecosystem ecology are often studied separately, one of the general goals of this dissertation is to examine how they interact across spatial and temporal scales. Forest ecosystems are heterogeneous across a range of scales. Spatial and temporal habitat use patterns of forest ungulates tend to be congregated in patches …
Ecological Studies Of Wolves On Isle Royale, 2011-2012, John A. Vucetich, Rolf O. Peterson
Ecological Studies Of Wolves On Isle Royale, 2011-2012, John A. Vucetich, Rolf O. Peterson
Ecological Studies of Wolves on Isle Royale
Annual Report 2011-2012
Nitrogen Deposition Effects On Production And Decomposition Of Coarse Woody Debris, Bethany Jeanne Lyons
Nitrogen Deposition Effects On Production And Decomposition Of Coarse Woody Debris, Bethany Jeanne Lyons
Dissertations, Master's Theses and Master's Reports - Open
Atmospheric nitrogen deposition has the potential to impact forest productivity, microbial associations, nutrient cycling, decomposition and stand dynamics. However, among the least studied aspects of these processes are the production and decomposition of dead woody biomass, or coarse woody debris (CWD). Coarse woody debris is made up of dead woody material on the ground called down dead wood (DDW) and dead standing trees which are often referred to as snags. Observed reductions in decomposition of CWD have been linked to substrate quality and microbial communities. If the decomposition effect is ubiquitous among litter types, CWD density, C:N, and biomass are …
Ecological Studies Of Wolves On Isle Royale, 2004-2005, Rolf O. Peterson, John A. Vucetich
Ecological Studies Of Wolves On Isle Royale, 2004-2005, Rolf O. Peterson, John A. Vucetich
Ecological Studies of Wolves on Isle Royale
Annual Report 2004-2005