Forage quality's influence on mule deer fawns
Identifieur interne : 001430 ( Main/Exploration ); précédent : 001429; suivant : 001431Forage quality's influence on mule deer fawns
Auteurs : Troy N. Tollefson [États-Unis] ; Lisa A. Shipley [États-Unis] ; Woodrow L. Myers [États-Unis] ; Nairanjana Dasgupta [États-Unis]Source :
- The Journal of Wildlife Management [ 0022-541X ] ; 2011-05.
English descriptors
- Teeft :
- Academic press, Adult mule deer, Animal health, Apparent success, August, Autumn nutrition, Biomass production, Biweekly measures, Body condition, Body mass, Canadian journal, Captive mule deer, Cervus elaphus, Cervus elaphus hispanicus, Dairy science, Daylight hour, Daylight hours, Decline experiment, Decline experiments, Deer, Diet quality, Dietary treatment, Digestibility, Digestible, Digestible energy, Digestible energy content, Digestible energy diets, Early autumn, Early decline, Early summer, Earlydecline experiment, Eastern washington, Energy intake, Fatter females, Fawn, Fawn growth, Fawn mass, Fawn recruitment, Fawn size, Fawn survival, Female body, Female mule deer, Food intake, Forage, Forage conditions, Forage quality, High medium, Intake, June, Lactose, Lactose concentration, Lactose content, Larger fawns, Late autumn, Late decline, Late spring, Less lactose, Less protein, Litter, Litter size, Litter sizes, Lower survival, Lowest levels, Main effects, Matter intake, Milk composition, Milk production, Milk protein, Milk quality, Milk samples, More protein, Much time, Mule, Mule deer, Mule deer fawns, Mule deer milk, Mule deer survival, Natural resource sciences, Natural vegetation, Nitrogen content, November, Nursing attempts, Nursing behavior, Nursing time, Nutrient concentration, Nutritional, Nutritional quality, Nutritional treatment, Nutritional treatments, Odocoileus hemionus, Older fawns, Parturition, Parturition date, Pellet, Pellet intake, Poor forage quality, Predictor variables, Previous year, Proc panel, Pullman, Ruminant, Second edition, Sequential years, Small ruminants, Smaller fawns, Summer precipitation, Tollefson, Treatment group, Unsuccessful nursing bouts, Vivo digestibility, Washington department, Washington state university, Weekly measures, Whitetailed deer, Wild fawns, Wildlife management, Wildlife society, Younger fawns.
Abstract
In many mule deer (Odocoileus hemionus) populations, recruitment of fawns drives population dynamics. The quality of food available to females and their fawns in summer and autumn may play an important role in fawn recruitment. We examined direct links between digestible energy (DE) content of food and the DE intake of females on the nutrient concentration of milk and between the nursing behavior, DE intake, growth, and survival in captive mule deer fawns. We offered females and their fawns diets that simulated the natural decline in DE content of forage from mid‐summer to late autumn in many western landscapes. Fawns fed a higher DE diet weighed 14% more at the onset of winter, had fewer unsuccessful nursing attempts, consumed milk with more protein and energy, and had higher survival than fawns fed a low DE diet. Differences between fawn performances among treatments were greatest when diet quality began decreasing earlier in the summer. Because our results indicate that summer and autumn nutrition is likely to influence fawn recruitment, wildlife biologists should include metrics for summer precipitation and late autumn fawn mass in population models, and land managers should focus on methods for improving the nutritional carrying capacity of summer and early autumn habitats. © 2011 The Wildlife Society.
Url:
DOI: 10.1002/jwmg.113
Affiliations:
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The quality of food available to females and their fawns in summer and autumn may play an important role in fawn recruitment. We examined direct links between digestible energy (DE) content of food and the DE intake of females on the nutrient concentration of milk and between the nursing behavior, DE intake, growth, and survival in captive mule deer fawns. We offered females and their fawns diets that simulated the natural decline in DE content of forage from mid‐summer to late autumn in many western landscapes. Fawns fed a higher DE diet weighed 14% more at the onset of winter, had fewer unsuccessful nursing attempts, consumed milk with more protein and energy, and had higher survival than fawns fed a low DE diet. Differences between fawn performances among treatments were greatest when diet quality began decreasing earlier in the summer. Because our results indicate that summer and autumn nutrition is likely to influence fawn recruitment, wildlife biologists should include metrics for summer precipitation and late autumn fawn mass in population models, and land managers should focus on methods for improving the nutritional carrying capacity of summer and early autumn habitats. © 2011 The Wildlife Society.</div></front></TEI><affiliations><list><country><li>États-Unis</li></country><region><li>Floride</li><li>Washington (État)</li></region></list><tree><country name="États-Unis"><region name="Washington (État)"><name sortKey="Tollefson, Troy N" sort="Tollefson, Troy N" uniqKey="Tollefson T" first="Troy N." last="Tollefson">Troy N. Tollefson</name></region><name sortKey="Dasgupta, Nairanjana" sort="Dasgupta, Nairanjana" uniqKey="Dasgupta N" first="Nairanjana" last="Dasgupta">Nairanjana Dasgupta</name><name sortKey="Myers, Woodrow L" sort="Myers, Woodrow L" uniqKey="Myers W" first="Woodrow L." last="Myers">Woodrow L. Myers</name><name sortKey="Shipley, Lisa A" sort="Shipley, Lisa A" uniqKey="Shipley L" first="Lisa A." last="Shipley">Lisa A. Shipley</name><name sortKey="Tollefson, Troy N" sort="Tollefson, Troy N" uniqKey="Tollefson T" first="Troy N." last="Tollefson">Troy N. Tollefson</name><name sortKey="Tollefson, Troy N" sort="Tollefson, Troy N" uniqKey="Tollefson T" first="Troy N." last="Tollefson">Troy N. Tollefson</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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