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Journal articles on the topic 'North American Beaver'

Author: Grafiati

Published: 4 June 2021

Last updated: 7 February 2022

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1

Labrecque-Foy, Julie-Pascale, Hubert Morin, and Miguel Montoro Girona. "Dynamics of Territorial Occupation by North American Beavers in Canadian Boreal Forests: A Novel Dendroecological Approach." Forests 11, no. 2 (2020): 221. http://dx.doi.org/10.3390/f11020221.

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Research Highlights: Our study highlights a new, simple, and effective method for studying the habitat use by beavers in Canadian boreal forests. Information regarding the presence of beaver colonies and their habitat occupation is essential for proper forest management and damage prevention in the boreal forest. Background and Objectives: The North American beaver (Castor canadensis) is a major element of natural disturbance, altering the dynamics and structure of boreal forest landscapes. Beaver-related activities also affect human infrastructure, cause floods, and lead to important monetary

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2

Naiman, Robert J., Carol A. Johnston, and James C. Kelley. "Alteration of North American Streams by Beaver." BioScience 38, no. 11 (1988): 753–62. http://dx.doi.org/10.2307/1310784.

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3

Jung, Thomas S., and Jennifer A. Staniforth. "Unusual Beaver, Castor canadensis, Dams in Central Yukon." Canadian Field-Naturalist 124, no. 3 (2010): 274. http://dx.doi.org/10.22621/cfn.v124i3.1090.

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North American Beavers (Castor canadensis) are remarkable for their ability to build dams and modify their habitat. Dams are typically made of the boles and branches of trees and large shrubs, and reinforced with mud and rocks. Here, we report two unusual Beaver dams in central Yukon, Canada, that are made primarily of medium-sized rocks. This observation points to the adaptability of Beavers in using available materials to build their dams.

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4

Gribb, William, and Henry Harlow. "A Survey of Beaver Location and Habitat to Model Their Distribution in Grand Teton National Park, Wyoming." UW National Parks Service Research Station Annual Reports 28 (January 1, 2004): 31–40. http://dx.doi.org/10.13001/uwnpsrc.2004.3567.

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A species that attracted a considerable amount of attention during the early years of American colonization and western exploration was the beaver (Castor canadensis). So important was this species that treaties between European countries specifically identified the trading of its furs (Long, 2000). It is estimated that over 60 million beavers were removed from the North American landscape between the early 1600s through the late 1800s (Long, 2000). By the beginning of the 1900s it is believed that only 10% of the pre-settlement population of beavers remained. Though not extinct, their numbers

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5

Jung, Thomas S., Jay Frandsen, Danny C. Gordon, and David H. Mossop. "Colonization of the Beaufort Coastal Plain by Beaver (Castor canadensis): A Response to Shrubification of the Tundra?" Canadian Field-Naturalist 130, no. 4 (2017): 332. http://dx.doi.org/10.22621/cfn.v130i4.1927.

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A consequence of rapid global warming has been the shrubification (increase in shrub abundance, cover, and biomass) of arctic and alpine tundra ecosystems. Shrubification is likely a key driver of predicted and observed changes in the biodiversity of the Arctic. The American Beaver (Castor canadensis) has a vast distributional range, covering most of north America below the tree line; however, it has not been recorded in tundra habitat of the Beaufort Coastal Plain of Yukon and Alaska. in 2015, we observed a beaver dam, lodge, and winter food cache on the Babbage River in Ivvavik National Park

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6

WILLIAMS, MARTYN. "Beaver Country: a North American beaver: Castor canadensis exhibit at Drusillas Zoo Park." International Zoo Yearbook 29, no. 1 (1989): 221–24. http://dx.doi.org/10.1111/j.1748-1090.1989.tb01118.x.

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7

WILLIAMS, MARTYN. "Beaver Country: a North American beaver: Castor canadensis exhibit at Drusillas Zoo Park." International Zoo Yearbook 29, no. 1 (2007): 221–24. http://dx.doi.org/10.1111/j.1748-1090.1990.tb03357.x.

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8

Vispo, Conrad, and Ian D. Hume. "The digestive tract and digestive function in the North American porcupine and beaver." Canadian Journal of Zoology 73, no. 5 (1995): 967–74. http://dx.doi.org/10.1139/z95-113.

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The morphology and function of the digestive tract of the largely arboreal porcupine (Erethizon dorsatum) and the semiaquatic beaver (Castor canadensis) were compared in relation to the similarly woody winter diet of these animals. Digesta particle sizes and Ca concentrations were consistently greater along the digestive tract of the beaver than along that of the porcupine. The small intestine of the beaver is 70% longer than that of the porcupine (P < 0.05 by ANCOVA). Both rodents are hind-gut fermenters and there was selective retention of small digesta particles (< 45 μm) in the cecum

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9

Ward, O. G., A. S. Graphodatsky, D. H. Wurster-Hill, V. R. Eremina, J. P. Park, and Q. Yu. "Cytogenetics of beavers: a case of speciation by monobrachial centric fusions." Genome 34, no. 3 (1991): 324–28. http://dx.doi.org/10.1139/g91-053.

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A comparison of G-banded chromosomes of four North American beavers, Castor canadensis (two males, two females), and four Eurasian beavers, Castor fiber (two males, two females), revealed that extensive monobrachial centric fusions distinguished the karyotypes of the two species. The complex multivalent formations that would occur in meiosis of a hypothetical hybrid would be expected to produce unbalanced gametes and postmating reproductive isolation. Thus, neither species was derived from the other; rather, they likely were derived from isolated populations in which some of the acrocentrics f

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10

Marymor, Leigh, and Richard Burnham Lanman. "Western Message Petroglyphs indicate historic beaver presence in a San Francisco Bay Area watershed." California Fish and Wildlife Journal 107, no. 2 (2021): 89–98. http://dx.doi.org/10.51492/cfwj.107.8.

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Recent museum, archaeological, and observer record evidence suggests that North American beaver (Castor canadensis) were historically native to the watersheds of California’s coast, including San Francisco Bay. A wide variety of animals are abundantly represented in Native American petroglyphs and pictographs with their representations fulfilling intentions ranging from the mundane to ceremonial and mythological purposes. However, beaver symbols are poorly represented in California rock art and absent from the San Francisco Bay Area. A novel record, in the form of Western Message Petroglyphs,

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11

Svendsen, Gerald E. "Pair formation, duration of pair-bonds, and mate replacement in a population of beavers (Castor canadensis)." Canadian Journal of Zoology 67, no. 2 (1989): 336–40. http://dx.doi.org/10.1139/z89-049.

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Characteristics of the breeding units in a population of North American beavers (Castor canadensis) are presented. All breeding units were monogamous. The hypothesis that a successful pair-bond usually occurs between an older and larger female and a younger and smaller male was rejected. Fifty-six percent of all pairs were formed in the months of September, October, and November. Newly formed pairs occurred predominantly between a resident beaver that had not yet acquired a mate, or had lost a previous mate, and an immigrant. A 2-year-old size beaver was one of the pair mates in 90% of newly f

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12

Rogovskyy, Artem S., Zigui Chen, Robert D. Burk, and Troy Bankhead. "Characterization of the North American beaver (Castor canadensis) papillomavirus genome." Veterinary Microbiology 168, no. 1 (2014): 214–20. http://dx.doi.org/10.1016/j.vetmic.2013.11.011.

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13

Gurnell, Angela M. "The hydrogeomorphological e•ects of beaver dam-building activity." Progress in Physical Geography: Earth and Environment 22, no. 2 (1998): 167–89. http://dx.doi.org/10.1177/030913339802200202.

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A characteristic of beaver ecology is their ability to build dams and, thus, to modify the landscape to increase its suitability for their occupation. This ability gives beaver great significance as a geomorphic agent. In order to review the hydrogeomorphological effects of beaver dam-building activity, this article places a context on the likely distribution and magnitude of beaver activity by considering the spatial and temporal variability of distributions of beaver and the habitat characteristics which might favour the establishment of substantial beaver populations. A description is then

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14

Mumma, M. A., M. P. Gillingham, C. J. Johnson, and K. L. Parker. "Where beavers (Castor canadensis) build: testing the influence of habitat quality, predation risk, and anthropogenic disturbance on colony occurrence." Canadian Journal of Zoology 96, no. 8 (2018): 897–904. http://dx.doi.org/10.1139/cjz-2017-0327.

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Species distributions are shaped by numerous factors that vary in importance across spatiotemporal scale. Understanding drivers of the distribution of North American beavers (Castor canadensis Kuhl, 1820) is paramount given their profound influence on ecological communities. Our objectives were to evaluate the influence of habitat quality, risk of gray wolf (Canis lupus Linnaeus, 1758) predation, and anthropogenic disturbance on the occurrence of beaver colonies in northeast British Columbia (BC), Canada. We used mixed-effects multinomial logistic regression to model the occurrence of active a

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15

Alakoski, Riikka, Kaarina Kauhala, and Vesa Selonen. "Differences in habitat use between the native Eurasian beaver and the invasive North American beaver in Finland." Biological Invasions 21, no. 5 (2019): 1601–13. http://dx.doi.org/10.1007/s10530-019-01919-9.

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16

Gerwing, Travis G., Chris J. Johnson, and Cecilia Alström-Rapaport. "Factors influencing forage selection by the North American beaver (Castor canadensis)." Mammalian Biology 78, no. 2 (2013): 79–86. http://dx.doi.org/10.1016/j.mambio.2012.07.157.

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17

Bailey, David R., Benjamin J. Dittbrenner, and Ken P. Yocom. "Reintegrating the North American beaver ( Castor canadensis ) in the urban landscape." Wiley Interdisciplinary Reviews: Water 6, no. 1 (2018): e1323. http://dx.doi.org/10.1002/wat2.1323.

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18

Tang, Rong, Francis X. Webster, and Dietland Müller-Schwarze. "Neutral compounds from male castoreum of North American beaver,Castor canadensis." Journal of Chemical Ecology 21, no. 11 (1995): 1745–62. http://dx.doi.org/10.1007/bf02033674.

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19

McLaren, A. A. D., S. E. Jamieson, M. Bond, A. R. Rodgers, and B. R. Patterson. "Spring diet of American black bears (Ursus americanus) in a moose (Alces alces) – woodland caribou (Rangifer tarandus caribou) system in northern Ontario, Canada." Canadian Journal of Zoology 99, no. 8 (2021): 721–28. http://dx.doi.org/10.1139/cjz-2020-0263.

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American black bears (Ursus americanus Pallas, 1780) are opportunistic foragers, and across most of their range in North America, their diet is predominantly vegetation with limited consumption of vertebrates and invertebrates. However, they are also predators of ungulates, especially neonates, with regional variation in the amount of predation pressure they exert. We used scat analysis to examine the diet of black bears during the calving season in a moose (Alces alces (Linnaeus, 1758)) – woodland caribou (Rangifer tarandus caribou (Gmelin, 1788)) system in the Boreal forest of northern Ontar

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20

Durben, Rachel M., Faith M. Walker, Liza Holeski, et al. "Beavers, Bugs and Chemistry: A Mammalian Herbivore Changes Chemistry Composition and Arthropod Communities in Foundation Tree Species." Forests 12, no. 7 (2021): 877. http://dx.doi.org/10.3390/f12070877.

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The North American beaver (Castor canadensis Kuhl) and cottonwoods (Populus spp.) are foundation species, the interactions of which define a much larger community and affect a threatened riparian habitat type. Few studies have tested the effect of these interactions on plant chemistry and a diverse arthropod community. We experimentally examined the impact of beaver foraging on riparian communities by first investigating beaver food preferences for one cottonwood species, Fremont cottonwood (P. fremontii S. Watson), compared to other locally available woody species. We next examined the impact

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21

Alakoski, Riikka, Kaarina Kauhala, Sakari Tuominen, and Vesa Selonen. "Environmental factors affecting the distributions of the native Eurasian beaver and the invasive North American beaver in Finland." Biological Conservation 248 (August 2020): 108680. http://dx.doi.org/10.1016/j.biocon.2020.108680.

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22

Tang, Rong, Francis X. Webster, and Dietland M�ller-Schwarze. "Phenolic compounds from male castoreum of the North American beaver,Castor canadensis." Journal of Chemical Ecology 19, no. 7 (1993): 1491–500. http://dx.doi.org/10.1007/bf00984892.

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23

Symons, David TA, Philippe Erdmer, and Phil JA McCausland. "New 42 Ma cratonic North American paleomagnetic pole from the Yukon underscores another Cordilleran paleomagnetism-geology conundrum." Canadian Journal of Earth Sciences 40, no. 10 (2003): 1321–34. http://dx.doi.org/10.1139/e03-047.

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Eocene posttectonic plutons of the Beaver River alkalic complex in southeastern Yukon intruded DevonianMississippian and Triassic sandstones in the Foothills of the Canadian Cordillera. A paleomagnetic collection of 27 sites from three separate plutons produced 326 specimens that were analyzed using alternating field and thermal step demagnetization methods. The A component characteristic remanent magnetization (ChRM) resides in magnetite with normal polarity in the 42.6 ± 0.8 Ma Beaver River pluton, reversed polarity in the 42.1 ± 0.7 Ma Larson Creek East pluton, and both polarities in the 4

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24

Meier, Christien, Gary D. Partlow, Kenneth R. Fisher, and Bryan Rennie. "Persistent paramesonephric ducts (masculine uterus) in the male North American beaver (Castor canadensis)." Canadian Journal of Zoology 76, no. 6 (1998): 1188–93. http://dx.doi.org/10.1139/z98-037.

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Remnants of the paramesonephric (Müllerian) ducts can be found in the male as a uterus-like structure. Historically, these have been known as a masculine uterus. We examined the reproductive tracts of 24 male North American beaver, Castor canadensis Kuhl, obtained from trappers between 1980 and 1997 from four areas extending across Ontario. Persistent paramesonephric ducts were found in 20 of these tracts. Prevalence was not related to geographic location. Grossly, the remnant appeared as one or two thin, uterus-like tubes medial to the ducti deferentes, with or without a medial corpus lying b

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25

Gibson, Polly P., and Julian D. Olden. "Ecology, management, and conservation implications of North American beaver(Castor canadensis)in dryland streams." Aquatic Conservation: Marine and Freshwater Ecosystems 24, no. 3 (2014): 391–409. http://dx.doi.org/10.1002/aqc.2432.

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26

Hugueney, Marguerite, and François Escuillié. "Fossil evidence for the origin of behavioral strategies in early Miocene Castoridae, and their role in the evolution of the family." Paleobiology 22, no. 4 (1996): 507–13. http://dx.doi.org/10.1017/s0094837300016493.

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Steneofiber, an early Miocene European beaver, showed evidence of a K-strategy model of reproduction and important morphological modifications for better adaptation to a semiaquatic way of life. At the same time, a North American branch of Castoridae developed not only a parental care system but also a series of cranial and postcranial osteological adaptations to a burrowing way of life. As the North American and the European Castoridae evolved independently from each other for at least fifteen m.y., these behavioral trends seem to have been inherent in the family for a long time and have appa

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27

Huertas Herrera, Alejandro, María Vanessa Lencinas, Mónica Toro Manríquez, Juan Andrés Miller, and Guillermo Martínez Pastur. "Mapping the status of the North American beaver invasion in the Tierra del Fuego archipelago." PLOS ONE 15, no. 4 (2020): e0232057. http://dx.doi.org/10.1371/journal.pone.0232057.

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28

Gruninger, Robert J., Tim A. McAllister, and Robert J. Forster. "Bacterial and Archaeal Diversity in the Gastrointestinal Tract of the North American Beaver (Castor canadensis)." PLOS ONE 11, no. 5 (2016): e0156457. http://dx.doi.org/10.1371/journal.pone.0156457.

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29

Salandre, Julien A., Rahel Beil, John A. Loehr, and Janne Sundell. "Foraging decisions of North American beaver (Castor canadensis) are shaped by energy constraints and predation risk." Mammal Research 62, no. 3 (2017): 229–39. http://dx.doi.org/10.1007/s13364-017-0312-6.

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30

Balluffi-Fry, Juliana, Liane B. Nowell, and Murray M. Humphries. "Eastern Coyotes (Canis latrans var.) consuming large ungulates in a multi-ungulate system." Canadian Field-Naturalist 134, no. 1 (2020): 45–51. http://dx.doi.org/10.22621/cfn.v134i1.2149.

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The feeding habits of generalist predators often vary among populations and regions. For example, Coyote (Canis latrans), which is a generalist predator distributed across North America, occupies a wide range of habitats and has a highly varied diet. In this observational study, we quantified the presence of mammalian prey items in 50 Eastern Coyote (Canis latrans var.) scats collected in late spring and summer in a private game reserve in southwestern Quebec. Nearly all scats contained hair of White-tailed Deer (Odocoileus virginianus; 44%), Moose (Alces americanus; 38%), or American Beaver (

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31

Ely, James W., John McLaren, Hamar Foster, and Chet Orloff. "Law for the Elephant, Law for the Beaver: Essays in the Legal History of the North American West." American Journal of Legal History 38, no. 2 (1994): 237. http://dx.doi.org/10.2307/845565.

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32

Roberts, Phil, John McLaren, Hamar Foster, and Chet Orloff. "Law for the Elephant, Law for the Beaver: Essays in the Legal History of the North American West." Western Historical Quarterly 25, no. 1 (1994): 94. http://dx.doi.org/10.2307/971075.

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33

Marti, Romain, Yun Zhang, Yuan-Ching Tien, David R. Lapen, and Edward Topp. "Assessment of a new Bacteroidales marker targeting North American beaver (Castor canadensis) fecal pollution by real-time PCR." Journal of Microbiological Methods 95, no. 2 (2013): 201–6. http://dx.doi.org/10.1016/j.mimet.2013.08.016.

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34

Anderson, Christopher B., Marina Tagliaferro, Aaron Fisk, Amy D. Rosemond, Marisol L. Sanchez, and Michael T. Arts. "Fatty acids elucidate sub-Antarctic stream benthic food web dynamics invaded by the North American beaver (Castor canadensis)." Polar Biology 43, no. 5 (2020): 423–33. http://dx.doi.org/10.1007/s00300-020-02644-z.

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35

Feldman, Mariano J., Miguel Montoro Girona, Guillaume Grosbois, and Alejandro G. Pietrek. "Why Do Beavers Leave Home? Lodge Abandonment in an Invasive Population in Patagonia." Forests 11, no. 11 (2020): 1161. http://dx.doi.org/10.3390/f11111161.

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Research Highlights: Lodge abandonment by beavers is apparently a common phenomenon in Patagonia, but it is still poorly understood and we ignore what drives it. In relatively slow growth Nothofagus forests, resource depletion can impact abandonment while water availability may be a major driver in the semiarid steppe. Background and Objectives: North American beaver (Castor canadensis) was introduced in 1946 on the island of Tierra del Fuego (TDF) in southern Argentina. Since then, beavers have become a major disturbance affecting not only forest but also treeless steppe landscapes. Our goal

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36

Telfer, Edmund S. "Continuing Environmental Change - An Example from Nova Scotia." Canadian Field-Naturalist 118, no. 1 (2004): 39. http://dx.doi.org/10.22621/cfn.v118i1.880.

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Information from personal experience, from community elders and published literature served as a basis for evaluating environmental changes in the District of North Queens and adjacent areas of Southwestern Nova Scotia over the past century. Major events included disappearance of the Caribou (Rangifer tarandus), the arrival of White-tailed Deer (Odocoileus virginianus), the severe reduction of Canada Yew (Taxus canadensis), disappearance of Lynx (Lynx canadensis), a major dieoff of Striped Skunks (Mephitis mephitis), decline of American Beech (Fagus grandifolia), the loss of mature birch (Betu

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37

Fox-Dobbs, K., J. K. Bump, R. O. Peterson, D. L. Fox, and P. L. Koch. "Carnivore-specific stable isotope variables and variation in the foraging ecology of modern and ancient wolf populations: case studies from Isle Royale, Minnesota, and La Brea." Canadian Journal of Zoology 85, no. 4 (2007): 458–71. http://dx.doi.org/10.1139/z07-018.

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We use carbon and nitrogen isotope data collected from two North American gray wolf ( Canis lupus L., 1758) populations (Isle Royale and northern Minnesota) to both calculate carnivore-specific isotopic variables and investigate wolf foraging ecology. The isotopic enrichments of 13C and 15N that occur between mammalian carnivores and their prey have not been well defined in modern populations. We use bone collagen from the Isle Royale National Park wolf, moose ( Alces alces (L., 1758)), and beaver ( Castor canadensis Kuhl, 1820) populations to determine trophic enrichment factors of 1.3‰ ± 0.6

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38

Snodgrass, Joel W. "Temporal and Spatial Dynamics of Beaver-Created Patches as Influenced by Management Practices in a South-Eastern North American Landscape." Journal of Applied Ecology 34, no. 4 (1997): 1043. http://dx.doi.org/10.2307/2405293.

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39

Lizarralde, Marta Susana, Graciela Bailliet, Sebastián Poljak, Mariana Fasanella, and Cecilia Giulivi. "Assessing genetic variation and population structure of invasive North American beaver (Castor Canadensis Kuhl, 1820) in Tierra Del Fuego (Argentina)." Biological Invasions 10, no. 5 (2007): 673–83. http://dx.doi.org/10.1007/s10530-007-9161-6.

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40

Touihri, Moez, Julie Labbé, Louis Imbeau, and Marcel Darveau. "North American Beaver (Castor canadensis Kuhl) key habitat characteristics: review of the relative effects of geomorphology, food availability and anthropogenic infrastructure." Écoscience 25, no. 1 (2017): 9–23. http://dx.doi.org/10.1080/11956860.2017.1395314.

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41

Shepherd, Nicholas L., and Robert W. Nairn. "Metals retention in a net alkaline mine drainage impacted stream due to the colonization of the North American Beaver (Castor canadensis)." Science of The Total Environment 731 (August 2020): 139203. http://dx.doi.org/10.1016/j.scitotenv.2020.139203.

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42

Dawson, Mary R., and C. R. Harington. "Boreameryx, an unusual new artiodactyl (Mammalia) from the Pliocene of Arctic Canada and endemism in Arctic fossil mammals." Canadian Journal of Earth Sciences 44, no. 5 (2007): 585–92. http://dx.doi.org/10.1139/e06-111.

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Boreameryx braskerudi, gen. et sp. nov., from Early Pliocene (about 5–4 Ma) deposits of Ellesmere Island, Nunavut, is represented by the posterior portion of a dentary with three molars, a partial calcaneum, unciform, and fragments of long bones and ribs. The incompletely known structure of Boreameryx must leave open the questions of its relationships within the pecoran ruminants. Even its possible affinities with early cervoids and the North American blastomerycines are speculative. We favour the tentative association of Boreameryx within the Cervoidea. Rather than evolving hypsodonty to deal

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Dorendorf, Ross R., Kelly J. Sivy, Martin D. Robards, Tom W. Glass, and Kristine L. Pilgrim. "Spring food habits of Wolverine (Gulo gulo) in the Colville River watershed, Alaska." Canadian Field-Naturalist 132, no. 3 (2019): 268–78. http://dx.doi.org/10.22621/cfn.v132i3.1947.

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Wolverines (Gulo gulo) are relatively abundant on the North Slope of Alaska, an Arctic ecosystem dominated by tundra habitats that run north from the Brooks Range across a wide coastal plain to the Beaufort Sea. The region contains a range of potential Wolverine prey species, including ungulates (Caribou [Rangifer tarandus], Moose [Alces americanus]), Arctic Ground Squirrel (Urocitellus parryii), and both Soricidae and Cricetidae species. The seasonal composition of these, and other prey species, in the Wolverines’ diet is not well understood. We collected Wolverine scats during spring (March–

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44

LeBlanc, F. A., D. Gallant, L. Vasseur, and L. Léger. "Unequal summer use of beaver ponds by river otters: influence of beaver activity, pond size, and vegetation cover." Canadian Journal of Zoology 85, no. 7 (2007): 774–82. http://dx.doi.org/10.1139/z07-056.

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River otters ( Lontra canadensis (Schreber, 1777)) and beavers ( Castor canadensis Kuhl, 1820) are semi-aquatic mammals that can occur sympatrically in freshwater ecosystems of North America, including beaver ponds. Although little research has been done on the relationship between these species, it has been described as commensal. Relatively little is known about what pond characteristics potentially influence otter use. During the summer of 2004, we documented otter activity signs (i.e., feces) at 56 beaver ponds located in Kouchibouguac National Park of Canada, along the east coast of New B

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45

Amanolahi Baharvand, Peyman, and Bakhtiar Sadjadi. "The Upholders of Anthropocentrism and Biocentrism in Annie Proulx’s Barkskins." Anafora 7, no. 1 (2020): 189–208. http://dx.doi.org/10.29162/anafora.v7i1.9.

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As the bedrocks of the French imperialism in North America, the fur trade and the logging industry led to a drastic depletion in the populations of fur-bearing animals, particularly that of the beaver, and massive deforestation on the continent. Examining Annie Proulx’s Barkskins from an ecocritical point of view, this article seeks to investigate the novel’s representations of the detrimental impact of anthropocentrism. We will show that the prevalence of anthropocentrism in New France resulted in the over-harvesting of beavers to procure precious pelts for European markets, where fur clothes

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Morgan, Shannon M. D., Craig E. Pouliott, Robert J. Rudd, and April D. Davis. "Antigen Detection, Rabies Virus Isolation, and Q-PCR in the Quantification of Viral Load in a Natural Infection of the North American Beaver (Castor canadensis)." Journal of Wildlife Diseases 51, no. 1 (2015): 287–89. http://dx.doi.org/10.7589/2014-05-120.

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Benedict, Philip, and Bernard Allaire. "Pelleteries, manchons, et chapeaux de castor: Les fourrures nord-americaines a Paris, 1500-1632 (Pelts, Muffs, and Beaver Hats: North American Furs in Paris, 1500-1632)." Journal of American History 87, no. 4 (2001): 1455. http://dx.doi.org/10.2307/2674745.

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Lesica, Peter, and Scott Miles. "Russian olive invasion into cottonwood forests along a regulated river in north-central Montana." Canadian Journal of Botany 77, no. 8 (1999): 1077–83. http://dx.doi.org/10.1139/b99-088.

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Russian olive (Elaeagnus angustifolia L.) is an exotic tree that is invasive in western North America where it may replace native riparian cottonwood forests. We mapped the occurrence of Russian olive and measured the size, density, and age of it and cottonwood in sandbar, low-terrace, and high-terrace habitats along the lower Marias River below Tiber Dam in Montana. Russian olive occurs along the entire study reach but is more abundant near domesticated plantings. It establishes in moist lower terrace habitat as well as under mature cottonwood on high terraces. Seventy-seven percent of cotton

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Czech, Andrzej. "Beaver management in Europe and North America. Book review. P. E. Busher, R. Dzięciołowski (Eds.), 1999: Beaver protection, management, and utilization in Europe and North America. Kluwer Academic / Plenum Publishers. 182 pp." Acta Theriologica 45 (June 8, 2000): 174. http://dx.doi.org/10.4098/at.arch.00-19.

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Belfiore, Natalia M. "Observation of a Beaver Beetle (Platypsyllus Castoris Ritsema) on a North American River Otter (Lontra Canadensis Schreber) (Carnivora: Mustelidae: Lutrinae) in Sacramento County, California (Coleoptera: Leiodidae: Platypsyllinae)." Coleopterists Bulletin 60, no. 4 (2006): 312–13. http://dx.doi.org/10.1649/0010-065x(2006)60[312:ooabbp]2.0.co;2.

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