Winter habitat associations of American martens Martes americana in interior wet-belt forests

Mowat, Garth

doi:10.2981/0909-6396(2006)12[51:whaoam]2.0.co;2

Cited by 20 publications

(23 citation statements)

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“…Overall, the effect of human-use areas on martens appears to be inconsistent. In northern Ontario, Canada, fewer marten tracks were found near roads than farther away from roads (Robitaille and Aubry 2000), whereas investigations in Maine and British Columbia found little impact of human-use areas on occurrence of martens (Chapin et al 1997;Mowat 2006). Our results support these latter findings.…”

Section: Discussionsupporting

confidence: 82%

“…Mowat (2006) observed a similar trend for comparable scales in British Columbia. His results demonstrated a selection for stand structure at fine scales but climax ecosystems and stand types at the landscape scale.…”

Section: Discussionsupporting

confidence: 66%

“…Surprisingly, structural characteristics of stands such as higher levels of canopy cover and height of stand that are typically selected for by martens (Buskirk and Powell 1994;Mowat 2006) did not appear in any preferred models. This may be a reflection of the inherent lack of variability in these components in RMNP; little forest management occurred in the park so little variability existed in canopy cover and height values as compared with other forests.…”

Section: Discussionmentioning

confidence: 99%

“…We selected this window size to represent an average home-range size for martens in Colorado (Hoover and Wills 1984). We used a 1,257-ha window to assess habitat correlates at the landscape scale, because a previous study suggested this size was most sensitive to detection of martens at the landscape scale (Mowat 2006). We extracted data on habitat attributes from geographic information system coverages of RMNP (Salas et al 2005) and surrounding areas provided by RMNP staff.…”

Section: Methodsmentioning

confidence: 99%

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Distribution, Occupancy, and Habitat Correlates of American Martens (Martes americana) in Rocky Mountain National Park, Colorado

Baldwin

Bender

2008

Journal of Mammalogy

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A clear understanding of habitat associations of martens (Martes americana) is necessary to effectively manage and monitor populations. However, this information was lacking for martens in most of their southern range, particularly during the summer season. We studied the distribution and habitat correlates of martens from 2004 to 2006 in Rocky Mountain National Park (RMNP) across 3 spatial scales: site-specific, home-range, and landscape. We used remote-sensored cameras from early August through late October to inventory occurrence of martens and modeled occurrence as a function of habitat and landscape variables using binary response (BR) and binomial count (BC) logistic regression, and occupancy modeling (OM). We also assessed which was the most appropriate modeling technique for martens in RMNP. Of the 3 modeling techniques, OM appeared to be most appropriate given the explanatory power of derived models and its incorporation of detection probabilities, although the results from BR and BC provided corroborating evidence of important habitat correlates. Location of sites in the western portion of the park, riparian mixed-conifer stands, and mixed-conifer with aspen patches were most frequently positively correlated with occurrence of martens, whereas more xeric and open sites were avoided. Additionally, OM yielded unbiased occupancy values ranging from 91% to 100% and 20% to 30% for the western and eastern portions of RMNP, respectively.

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Section: Discussionsupporting

confidence: 82%

Section: Discussionsupporting

confidence: 66%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Distribution, Occupancy, and Habitat Correlates of American Martens (Martes americana) in Rocky Mountain National Park, Colorado

Baldwin

Bender

2008

Journal of Mammalogy

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“…On a small scale, it appears that martens select forest stands that provide ample large downed wood and large dead and declining trees, in combination with adequate canopy closure , Bowman and Robitaille 1997, Payer and Harrison 2003, Mowat 2006. These structural features provide habitat for prey species, greater foraging efficiency, protective thermal microenvironments, and cover from predators (Corn and Raphael 1992, Thompson and Curran 1995, Wilbert et al 2000, Andruskiw et al 2008.…”

Section: Introductionmentioning

confidence: 99%

Evaluating the relationship between trapper harvest of American martens (Martes americana) and the quantity and spatial configuration of habitat in the boreal forests of Ontario, Canada

LandriaultLynn

NaylorBrian

MillsStephen³

et al. 2012

The Forestry Chronicle

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We investigated the relationship between trapper harvest of martens (Martes americana) and the quantity and spatial configuration of marten habitat on traplines in the eastern and western boreal forests of Ontario. We used region-specific habitat models to estimate the total amount of suitable marten habitat on each trapline, and the proportion of each trapline identified as suitable habitat in various patch size classes. To control for variability in trapper success not associated with habitat, we included an index of trapper effort, as well as variables related to access, temperature, and precipitation as covariates in our regression analyses. Region-specific habitat models identified a positive relationship between the proportion of suitable marten habitat on traplines (irrespective of patch size) and trapper success. Although there did not appear to be an effect of patch size on trapper success in the eastern study region, we observed an effect in the western region. Results from the western study region suggest that traplines with suitable habitat in patches ≥500 ha will have higher trapper success than traplines with similar proportions of suitable habitat but distributed in smaller patches. Our study was conducted in a forested landscape (80% of trapline area was forested). Therefore, our findings should not be applied to areas where suitable marten habitat lies in a matrix comprised of a significant amount of non-forested area.Key words: American marten, boreal forest, fragmentation, marten habitat, Martes americana, patch size, spatial configuration, trapper harvest, trapping RÉSUMÉ Nous avons étudié la relation entre le nombre de martres (Martes americana) piégées et le nombre d'habitats de la martre ainsi que leur configuration spatiale le long de lignes de trappage dans les forêts boréales l' est et de l' ouest de l'Ontario. Nous avons utilisé des modèles d'habitat spécifiques aux régions afin d' estimer le nombre total d'habitats adéquats de la martre le long de chaque ligne de trappage, ainsi que la proportion de chaque ligne de trappage identifiée comme étant adéquate selon différentes classes de dimension des parcelles. Afin de prendre en considération la variabilité du succès du trappage non associée à l'habitat, nous avons inclus un indice de l' effort du trappeur, ainsi que des variables reliées à l'accessibilité, la température et les précipitations en tant que covariables dans les analyses de régression. Les modèles d'habitat spécifique aux régions ont relevé une relation positive entre la proportion d'habitat adéquat de la martre le long des lignes de trappage (sans relation avec la dimension des parcelles) et le succès du trappeur. Même s'il ne semble pas y avoir d' effet de la dimension de la parcelle au niveau du succès du trappeur dans la région orientale sous étude, nous avons observé un effet dans la région occidentale. Les résultats de la région occidentale sous étude indiquent que les lignes de trappage dans les habitats adéquats constitués de parcelles ≥500 ha afficheront u...

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Body mass explains characteristic scales of habitat selection in terrestrial mammals

Fisher

Anholt

Volpe

2011

Ecology and Evolution

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Niche theory in its various forms is based on those environmental factors that permit species persistence, but less work has focused on defining the extent, or size, of a species’ environment: the area that explains a species’ presence at a point in space. We proposed that this habitat extent is identifiable from a characteristic scale of habitat selection, the spatial scale at which habitat best explains species’ occurrence. We hypothesized that this scale is predicted by body size. We tested this hypothesis on 12 sympatric terrestrial mammal species in the Canadian Rocky Mountains. For each species, habitat models varied across the 20 spatial scales tested. For six species, we found a characteristic scale; this scale was explained by species’ body mass in a quadratic relationship. Habitat measured at large scales best-predicted habitat selection in both large and small species, and small scales predict habitat extent in medium-sized species. The relationship between body size and habitat selection scale implies evolutionary adaptation to landscape heterogeneity as the driver of scale-dependent habitat selection.

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Winter habitat associations of American martens Martes americana in interior wet-belt forests

Abstract: BioOne Complete (complete.BioOne.org) is a full-text database of 200 subscribed and open-access titles in the biological, ecological, and environmental sciences published by nonprofit societies, associations, museums, institutions, and presses.

Cited by 20 publications

References 16 publications

Distribution, Occupancy, and Habitat Correlates of American Martens (Martes americana) in Rocky Mountain National Park, Colorado

Distribution, Occupancy, and Habitat Correlates of American Martens (Martes americana) in Rocky Mountain National Park, Colorado

Evaluating the relationship between trapper harvest of American martens (Martes americana) and the quantity and spatial configuration of habitat in the boreal forests of Ontario, Canada

Body mass explains characteristic scales of habitat selection in terrestrial mammals

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