Multi-scale Habitat Selection by American Marten (Martes Americana) in Michigan's Lower Peninsula PDF Download
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Author: Clay Buchanan
Publisher:
ISBN:
Category : American marten
Languages : en
Pages : 72
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Author: Clay Buchanan
Publisher:
ISBN:
Category : American marten
Languages : en
Pages : 72
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Author: Tzeidle Nicole Wasserman
Publisher:
ISBN:
Category : American marten
Languages : en
Pages : 21
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We used bivariate scaling and logistic regression to investigate multiple-scale habitat selection by American marten (Martes americana). Bivariate scaling reveals dramatic differences in the apparent nature and strength of relationships between marten occupancy and a number of habitat variables across a range of spatial scales. These differences include reversals in the direction of an observed association from positive to negative and frequent dramatic changes in the apparent importance of a habitat variable as a predictor of marten occurrence. Logistic regression on the optimally scaled input variables suggests that at the scale of home ranges, marten select landscapes with high average canopy closure and low fragmentation. Within these low fragmented landscapes, marten select foraging habitat at a fine scale within late-seral, middle-elevation mesic forests. In northern Idaho, optimum American marten habitat, therefore, consists of landscapes with low road density, low density of non-forest patches with high canopy closure, and large areas of middle-elevation, late successional mesic forest. Comparison of current landscape conditions to those expected under the historic range of variability indicates that road building and timber harvest in the past century may have substantially reduced the amount of suitable marten habitat in northern Idaho. Our results are generally consistent with previous research in the Rocky Mountains, with additional insights related to the relative importance, functional form, and scale at which each habitat variable has the largest influence on marten occurrence.
Author: Linda Ebel Thomasma
Publisher:
ISBN:
Category :
Languages : en
Pages : 232
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Author: Scott D. Tomson
Publisher:
ISBN:
Category :
Languages : en
Pages : 150
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Author: Maria Catherine Spriggs
Publisher:
ISBN:
Category : American marten
Languages : en
Pages : 103
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The American marten (Martes americana) was extirpated from Michigan during the early-20th century due to loss of vast areas of mature conifer forest and unregulated trapping. The species was reintroduced into the Upper Peninsula (UP) and Northern Lower Peninsula (NLP) during the mid-20th century. While the American marten population in the UP has grown and is doing well, the population in the NLP has been less successful. The reasons for the limited success of the NLP population are unknown, but may include lack of suitable habitat, limited reproductive success, poor genetic diversity, disease, or negative environmental impacts. American marten were live-trapped from 2011-2015 in the Manistee National Forest (NLP) and the Hiawatha National Forest (UP) of Michigan concurrent with a large-scale habitat and genetic study to evaluate the health of these two reintroduced populations. Parameters assessed included blood chemistry and complete blood counts, fecal parasite exams, hair stable isotope ratios, and serological evidence of disease. In addition, carcasses from trapper-harvested American marten in the UP were collected during 2012-2014 for hair stable isotope ratios and Toxoplasma serology. This is the first report of an assessment of general health and exposure to pathogens in American marten in Michigan and will be used to inform future management decisions including additional reintroductions of the species to the NLP.
Author: Keith B. Aubry
Publisher: Cornell University Press
ISBN: 0801466091
Category : Science
Languages : en
Pages : 603
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Book Description
Mammals in the genus Martes are mid-sized carnivores of great importance to forest ecosystems. This book, the successor to Martens, Sables, and Fishers: Biology and Conservation, provides a scientific basis for management and conservation efforts designed to maintain or enhance the populations and habitats of Martes species throughout the world. The twenty synthesis chapters contained in this book bring together the perspectives and expertise of sixty-three scientists from twelve countries, and are organized by the five key themes of evolution and biogeography, population biology and management, habitat ecology and management, research techniques, and conservation. Recent developments in research technologies such as modeling and genetics, biological knowledge about pathogens and parasites, and concerns about the potential effects of global warming on the distribution and status of Martes populations make new syntheses of these areas especially timely. The volume provides an overview of what is known while clarifying initiatives for future research and conservation priorities, and will be of interest to mammalogists, resource managers, applied ecologists, and conservation biologists.
Author: Daniel J. Harrison
Publisher: Springer Science & Business Media
ISBN: 0387226915
Category : Science
Languages : en
Pages : 294
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Book Description
Martens and Fishers (Martes) in Human-Altered Environments: An International Perspective examines the conditions where humans and martens are compatible and incompatible, and promotes land use practices that allow Martes to be representatively distributed and viable. All Martes have been documented to use forested habitats and 6 species (excluding the stone marten) are generally considered to require complex mid- to late-successional forests throughout much of their geographic ranges. All species in the genus require complex horizontal and vertical structure to provide escape cover protection from predators, habitat for their prey, access to food resources, and protection from the elements. Martens and the fisher have high metabolic rates, have large spatial requirements, have high surface area to volume ratios for animals that often inhabit high latitudes, and often require among the largest home range areas per unit body weight of any group of mammals. Resulting from these unique life history characteristics, this genus is particularly sensitive to human influences on their habitats, including habitat loss, stand-scale simplification of forest structure via some forms of logging, and landscape-scale effects of habitat fragmentation. Given their strong associations with structural complexity in forests, martens and the fisher are often considered as useful barometers of forest health and have been used as ecological indicators, flagship, and umbrella species in different parts of the world. Thus, efforts to successfully conserve and manage martens and fishers are associated with the ecological fates of other forest dependent species and can greatly influence ecosystem integrity within forests that are increasingly shared among wildlife and humans. We have made great strides in our fundamental understanding of how animals with these unique life history traits perceive and utilize habitats, respond to habitat change, and how their populations function and perform under different forms of human management and mismanagement. This knowledge enhances our basic understanding of all species of Martes and will help us to achieve the goal of conserving viable populations and representative distributions of the world’s Martes, their habitats, and associated ecological communities in our new millennium.
Author: Bronwyn Waller Williams
Publisher:
ISBN:
Category : American marten
Languages : en
Pages : 34
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Management of mustelid species such as fishers and martens requires an understanding of the history of local populations. This is particularly true in areas where populations were extirpated and restored through reintroduction efforts. During the late 19th and 20th centuries, fishers (Martes pennanti) and American martens (Martes americana) were extirpated from much of their southern range, including Michigan and Wisconsin. Both species have been restored to varying degrees in these states following multiple reintroductions and translocations. We describe the status of the original populations and changes in their status over time, and include source locations, release sites, release and reintroduction dates, and demographic characteristics of released animals. This synthesis is crucial for evaluating the relative success of reintroductions in Michigan and Wisconsin, and, combined with knowledge of the current condition of these populations, can provide valuable guidance on the future management of these species. We also assess the reintroduction of fishers and martens in Michigan and Wisconsin and discuss strategies for successful reintroductions.
Author: Thomas A. Kirk
Publisher:
ISBN:
Category : American marten
Languages : en
Pages : 206
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Author: Aswea Dawn Porter
Publisher:
ISBN:
Category : American marten
Languages : en
Pages : 158
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