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Scientific Sources

Mammal, Marten, Minnesota, Mustelid

Martens

GilBert, J. H., P. A. Zollner, A. K. Green, J. L. Wright, and W. H. KaraSov. 2009. Seasonal field metabolic rates of American martens in Wisconsin. The American Midland Naturalist 162:327–334.
Joyce, M. J. (2013). Space use behavior and multi-scale habitat selection of American marten (Martes americana) in northeastern Minnesota (Doctoral dissertation, University of Minnesota).
Long, R. A., P. MacKay, J. D. Sauder, M. Sinclair, K. B. Aubry, and C. M. Raley. (2024). An overwinter protocol for detecting wolverines and other carnivores at camera traps paired with automated scent dispensers. Ecology and Evolution 14:e11290.
Lucid, M., Cushman, S., Robinson, L., Kortello, A., Hausleitner, D., Mowat, G., ... & Paetkau, D. (2020). Carnivore contact: A species fracture zone delineated amongst genetically structured North American marten populations (Martes americana and Martes caurina). Frontiers in Genetics, 11, 557906.
McCann, N. P., Zollner, P. A., & Gilbert, J. H. (2017). Classifying carnivore tracks using dimensions that control for snow conditions. Wildlife Society Bulletin, 41(2), 278-285.
Slauson, K. M., & Zielinski, W. J. (2017). Seasonal specialization in diet of the Humboldt marten (Martes caurina humboldtensis) in California and the importance of prey size. Journal of Mammalogy, 98(6), 1697-1708.
Mammal, Mustelid, Washington, finished

Short and Long-tailed Weasels

Elsasser, S. C., & Parker, G. H. (2008). Morphometric criteria for distinguishing species and age-cohorts of Ermine (Mustela erminea) and long-tailed weasel (M. frenata). Acta Zoologica Academiae Scientiarum Hungaricae, 54(1), 75-88.
Lisgo, K. A. (1999). Ecology of the short-tailed weasel (Mustela erminea) in the mixedwood boreal forest of Alberta (Doctoral dissertation, University of British Columbia).
Mammal, Washington, finished, pika

American Pika

Galbreath, K. E., Hafner, D. J., & Zamudio, K. R. (2009). When cold is better: climate‐driven elevation shifts yield complex patterns of diversification and demography in an alpine specialist (American pika, Ochotona princeps). Evolution: International Journal of Organic Evolution, 63(11), 2848-2863.
Johnston, A. N., Bruggeman, J. E., Beers, A. T., Beever, E. A., Christophersen, R. G., & Ransom, J. I. (2019). Ecological consequences of anomalies in atmospheric moisture and snowpack. Ecology, 100(4), e02638.
Millar, C. I., Westfall, R. D., & Delany, D. L. (2016). Thermal components of American pika habitat—how does a small lagomorph encounter climate?. Arctic, Antarctic, and Alpine Research, 48(2), 327-343.
Ray, C., Beever, E., Loarie, S., Brodie, J. F., Post, E., & Doak, D. F. (2012). Retreat of the American pika: up the mountain or into the void. Wildlife conservation in a changing climate. University of Chicago Press, Chicago, IL, 245-270.
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Ben Wymer

awoodswalk_photography

Wildlife ecologist, photographer, camera trapper, and certified tracker with a primary focus of studying martens and fishers.
Go for a woods walk 🌲

Yesterday, I spent the afternoon and evening doing Yesterday, I spent the afternoon and evening doing photography with @jerrymonkman . We were witness to this beautiful sunset and golden lighting.

#sunset #newhampshire #newhampshirephotography #landscapephotography
Some more images from the marten scent marking log Some more images from the marten scent marking log.

I want you all to take a close look around the marten's eye. Notice the brown fur. This marten is beginning to transition from its winter coat to its summer coat.

#martes #martesamericana #americanmarten #marten #newhampshire #whitemountains #cameratrapping #wildlife #nationalforest #wmnf #camtraptions @camtraptions #wildlifephotography #nikon #awoodswalk
Amidst the tangle of a marten's home, there are sp Amidst the tangle of a marten's home, there are special sites where they communicate. While nearly always solitary, martens use chemical cues, through scent marking, to communicate with their neighbors. From my experience, males mark the most, or perhaps it is easiest to identify how males are marking. Pictured in the second image, you can see how this male rubs the scent glands around his groin across the log, and across the scat that a marten left over a month ago.

#martes #martesamericana #americanmarten #marten #newhampshire #whitemountains #cameratrapping #wildlife #nationalforest #wmnf #camtraptions @camtraptions #wildlifephotography #nikon #awoodswalk
It's been two weeks now since a bear last came thr It's been two weeks now since a bear last came through my camera trap. Since then, I moved my camera setup into a tree to make it more annoying for the bears to access and to try to photograph them back-rubbing. During this lull in the bear activity, a bobcat and moose passed through though.

This is my first time setting my camera off the ground, and after seeing the shots of the bobcat, I think I'll play around with sets like this in the future. I like how much more the bobcat seems to be one with its surroundings. Much to learn though!

For now, I hope you enjoy seeing how drastically smaller bobcats are to moose!

#bobcat #moose #nh #newhampshire #newhampshirephotography #cameratrapping #camtraptions #awoodswalk
This week at the marten marking post, two individu This week at the marten marking post, two individuals passed through. The first was a partially leucistic individual, and this came as quite a shock to me. While American martens (Martes Americana) can have white faces/heads in the winter, the extent to which this individual had white or blonde fur along its neck, fore limbs, back, and tail is quite unique and uncharacteristic. Also, the nose of this marten was not black but lighter, almost purple. 

A few days later a second smaller marten came through. This second individual was more typically colored. Both martens sniffed the log as they passed through, seeming to focus on the scat that a marten had left two weeks ago during the period my camera trap was dead.

Based on the body size difference, and the longer and larger head of the leucistic marten, I think it's reasonable to suspect that the leucistic individual is a male and the smaller marten is a female.

#martens #americanmarten #martes @martesgroup #martesamericana #newhampshire #newhampshirephotography #nh #whitemountains #awoodswalk #wildlifephotography #wildlife #camtraptions #cameratrapping @camtraptions
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