Mammalian digestive tracts

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Moose are browsers. (about 15 kg/day) Same things in spruce that affect moose microbes also affect soil litter microbes. Thus, litter composition (spruce/fir opposed to aspen, etc.) affects soil N. Feed selectively. Prefer early successional species like aspen, paper birch, balsam poplar. Almost never eat spruce, rarely balsam fir (when really hungry) Spruce has high resin, lignin content, low N. (Bad for moose digestion) Moose-browsed species over-topped by spruce/fir...affects forest tree composition (shown by exclosure experiments). But not only tree composition, changes in soil microbes and nutrients affect rates of plant growth and other species of forest plants. Note: wolves good! hungry moose!
• Exclosures for 40+ yrs • Selective browsing by deer affect tree growth, alter species composition • Critical concern: rare and sensitive understorey plants, esp. springtime plants, hammered by deer White-tailed deer in Wisconsin: because of forestry and wildlife management practices, way higher numbers of deer now that in pre-settlement period
Page 1 and 2: Mammalian digestive tracts Mouth: m
Page 3 and 4: Problem: most E in leaves/grass not
Page 5 and 6: 3 basic patterns: Carnivores/insect
Page 7 and 8: Advantages of microbial fermentatio
Page 9 and 10: Hindgut fermenters process food abo
Page 11 and 12: Mammals are not just passive compon
Page 13: Thus, competitive advantage of pere
Page 17 and 18: Could note lots of other studies sh
Page 19 and 20: Kelp forests are rich, diverse mari
Page 21: OK, didn’t quite finish this one

Mammalian digestive tracts

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