Seed Dispersal by Brown Bears, <em>Ursus arctos</em>, in Southeastern Alaska
نویسندگان
چکیده
منابع مشابه
Characteristics of Nonsport Mortalities to Brown and Black Bears and Human Injuries from Bears in Alaska
We examined the reasons bears are reported killed in defense of life or property (DLP) in Alaska as an index to causes and frequency of conflicts between humans and bears, and compared the sex and age composition of DLP kills with that of sport-killed bears. Data came from standardized questionnaires filled out by persons shooting the bears. Numbers of sport-killed brown bears (Ursus arctos) an...
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The brown bears of coastal Alaska have been recently regarded as comprising from one to three distinct genetic groups. We sampled brown bears from each of the regions for which hypotheses of genetic uniqueness have been made, including the bears of the Kodiak Archipelago and the bears of Admiralty, Baranof and Chichagof (ABC) Islands in southeast Alaska. These samples were analysed with a suite...
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Predation on returning runs of adult salmon (Oncorhynchus spp.) can have a large influence on their spawning success. At McNeil River State Game Sanctuary (MRSGS), Alaska, brown bears (Ursus arctos) congregate in high numbers annually along the lower McNeil River to prey upon returning adult chum salmon (O. keta). Low chum salmon escapements into McNeil River since the late 1990s have been prop...
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In a warming climate, temperature-sensitive plants must move toward colder areas, that is, higher latitude or altitude, by seed dispersal [1]. Considering that the temperature drop with increasing altitude (-0.65°C per 100 m altitude) is one hundred to a thousand times larger than that of the equivalent latitudinal distance [2], vertical seed dispersal is probably a key process for plant escape...
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ژورنال
عنوان ژورنال: The Canadian Field-Naturalist
سال: 2004
ISSN: 0008-3550
DOI: 10.22621/cfn.v118i4.53