Results 21 to 30 of about 2,489 (220)
The beaver Castor fiber (L.) and Castor canadensis (Kuhl) in Finland [PDF]
Acta Theriologica, 1974 Dane paleontologiczne wskazują, ze bobry zamieszkują Finlandie od 6500-7000 lat. Intensywne lowienie tych zwierząt spowodowalo, ze ostatni osobnik zostal zabity w polnocnej Finlandii w 1868 r. Dopiero w latach 1935-36 przywieziono 19 bobrow europejskich z Norwegii, a w 1937 7 bobrow kanadyjskich ze stanu New Jork. Ten drugi gatunek szybko zwiekszal swą
Lahti, S., Helminen, M.
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Landscape structure and population density affect intraspecific aggression in beavers
Ecology and Evolution, 2020 Intraspecific competition plays an important role for territory acquisition and occupancy, in turn affecting individual fitness. Thus, understanding the drivers of intraspecific aggression can increase our understanding of population dynamics.
Martin Mayer +3 more
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Retention time and fix acquisition rate of glued-on GPS transmitters in a semi-aquatic species
Animal Biotelemetry, 2023 Background Movement is a core mechanism through which animals interact with their environment. GPS telemetry is a popular approach used to investigate animal movement, providing access to both the spatial and temporal behavioral patterns exhibited by an ...
John B. Pitman +1 more
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Unusual Beaver, Castor canadensis, Dams in Central Yukon [PDF]
, 2010 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.
Jung, Thomas S., Staniforth, Jennifer A.
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Relocated beaver can increase water storage and decrease stream temperature in headwater streams
Ecosphere, 2022 Many areas are experiencing increasing stream temperatures due to climate change, and some are experiencing reduced summer stream flows and water availability.
Benjamin J. Dittbrenner +3 more
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Ecología Austral, 2018 El castor norteamericano (Castor canadensis) es una especie invasora en Tierra del Fuego. Es capaz de transformar sistemas lóticos en lénticos por medio de la construcción de diques.
Victoria J. García +1 more
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PLoS ONE, 2011 BackgroundBeavers are one of the largest and ecologically most distinct rodent species. Little is known about their evolution and even their closest phylogenetic relatives have not yet been identified with certainty.
Susanne Horn +6 more
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Accuracy of aerial censusing for beaver Castor-canadensis colonies in Newfoundland Canada [PDF]
, 1981 Aerial censusing of beaver (Castor canadensis) colonies is widely used in beaver management (Swank and Glover 1948, Fuller 1953, Hay 1958, Dickinson 1971), but the accuracy of the method has been undefined in North ...
Payne, N.F.
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Western Message Petroglyphs indicate historic beaver presence in a San Francisco Bay Area watershed
California Fish and Wildlife Journal, 2021 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.
Leigh Marymor, Richard Burnham Lanman
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Placentation in the American beaver (Castor canadensis) [PDF]
American Journal of Anatomy, 1971 AbstractImplantation in the beaver is superficial and antimesometrial. The embryonic disc occupies one side of the flattened mesometrial hemisphere of the large blastocyst. An endometrial papilla, unique to the beaver, forms on the mesometrial uterine wall just prior to chorioallantoic contact.
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