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Titolo:
EVALUATING GRAZING STRATEGIES FOR CATTLE - DEER AND CATTLE FOOD PARTITIONING
Autore:
ORTEGA IM; SOLTEROGARDEA S; BRYANT FC; DRAWE DL;
Indirizzi:
TEXAS TECH UNIV,DEPT RANGE WILDLIFE & FISHERIES MANAGEMENT LUBBOCK TX79409 INST NACL INVEST FORESTALES & AGROPECUARIAS JALISCO MEXICO WELDER WILDLIFE FDN SINTON TX 78387 TAMU,CAESAR KLEBERG WILDLIFE RES INST KINGSVILLE TX 78363
Titolo Testata:
Journal of range management
fascicolo: 6, volume: 50, anno: 1997,
pagine: 622 - 630
SICI:
0022-409X(1997)50:6<622:EGSFC->2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
WHITE-TAILED DEER; PINE-BLUESTEM RANGE; SOUTH TEXAS-PLAINS; DIET SELECTION; SHORT DURATION; HABITS; NICHE; PREFERENCES; EXCELLENT; FAWNS;
Keywords:
WHITE-TAILED DEER; ODOCOILEUS VIRGINIANUS; CATTLE; FOOD HABITS; COASTAL BEND OF TEXAS; SHORT-DURATION GRAZING; CONTINUOUS GRAZING;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
68
Recensione:
Indirizzi per estratti:
Citazione:
I.M. Ortega et al., "EVALUATING GRAZING STRATEGIES FOR CATTLE - DEER AND CATTLE FOOD PARTITIONING", Journal of range management, 50(6), 1997, pp. 622-630

Abstract

We studied resource partitioning between cattle and deer (Odocoileus virginianus Boddaert) within replicated treatments of continuous and short-duration grazing at heavy and moderate stocking rates. We recorded food habits using the bite-count technique with tame white-tailed deer, and the esophageal fistula technique with steers. Through use of canonical discriminant analysis, we found diets of cattle and deer to be distinct (P < 0.05) from each other in every treatment throughout the sampling period. Overall, deer used mostly forbs (72%) whereas cattle primarily used grasses (60%) and forbs (39%). We also evaluated sensitivity to pasture conditions created by cattle grazing by comparing diets across treatments, especially during the summer months (May through September) and the second winter, which was affected by drought. Out of a possible 48 treatment combinations compared, deer selected different diets 21 times whereas cattle selected different diets 16 times. Deer were more sensitive than cattle to grazing treatments. Cattle were most sensitive to treatments during the first summer and second winter. Deer were the least sensitive to the grazing treatments during spring, when their diets were similar across all treatments. We recommend moderate stocking rates to reduce dietary overlap between cattle anddeer and continuous grazing or less intensive grazing systems to create an environment where deer can select greater amounts of forbs.

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Documento generato il 04/12/20 alle ore 16:34:45