Sensitivity of Condition Indices to Changing Density in a White-Tailed Deer Population

Sams, Michael G.; Lochmiller, Robert L.; Quails, Charles W.; Leslie, David M.

doi:10.7589/0090-3558-34.1.110

Cited by 28 publications

(31 citation statements)

References 28 publications

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“…Many studies have found that cervids in populations suffering from forage competition show a reduced body mass (Leader-Williams and Rickett 1982;Vincent et al 1995;Ashley et al 1998;Sams et al 1998;Hjeljord and Histol 1999). In our study, adult HD-SW male deer reached 87% and 60% of the body mass reached by HD-MW and LD-SW adult deer, respectively, whereas adult HD-SW females reached 74% of the body mass of adult HD-MW females.…”

Section: Size Differences Between Populationscontrasting

confidence: 55%

“…Since Cervidae grow during the summer in temperate and cold climates, intensive forage competition during this season should result in a chronic reduction in body size, a phenomenon observed in reindeer and caribou (Rangifer tarandus: Leader-Williams and Rickett 1982; , moose (Alces alces: Sand et al 1996;Hjeljord and Histol 1999), roe deer (Capreolus capreolus: Vincent et al 1995) and white-tailed deer (Odocoileus virginianus: Ashley et al 1998;Sams et al 1998). However, the consequences of forage restriction in summer have not yet been studied under controlled conditions.…”

Section: Introductionmentioning

confidence: 99%

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Evidence for a trade-off between growth and body reserves in northern white-tailed deer

et al. 2001

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We contrasted patterns of growth and accumulation of body reserves in autumn between two high-density (HD) white-tailed deer populations facing winters of different severity and length. Both populations occurred in the absence of effective predators and suffered from some forage competition based on reduced body masses. A third population living at low density (LD) and confronting long and severe winters (SW) served to distinguish the influence of food competition and winter severity on growth and body reserves. We estimated body components (water, protein, fat and ash) of deer during the first half of November and compared growth patterns between sexes and regions. HD-SW males continuted growth to an older age than HD males facing short and mild winters (MW) but females of both regions reached adult body mass at the same age. LD-SW deer exhibited a growth pattern similar to that of HD-SW animals but were the heaviest and the largest, suggesting that growth patterns are related to winter harshness (or length of the growing season) and that final body size is related to forage competition in summer. Sexual dimorphism became evident at an older age in the HD-SW population than in the HD-MW population, demonstrating that winter harshness does not affect immature males and females in the same manner. Fawns from the HD-SW population had proportionally longer legs and a higher percentage of body fat. Adaptations of immature deer to long and severe winters suggest that survival during the first winter represents the most critical step in the life span of northern white-tailed deer.

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Section: Size Differences Between Populationscontrasting

confidence: 55%

Section: Introductionmentioning

confidence: 99%

Evidence for a trade-off between growth and body reserves in northern white-tailed deer

et al. 2001

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“…No se encontró diferencias por sexo en el caso de la creatinina, lo que concuerda con lo reportado por Sams et al (1998) e ISIS (1999). Sin embargo, se encontraron diferencias (p<0.05) por lugar de procedencia (ZH: 2.5 mg/dl vs PECS: 2.0 y ZCI: 2.1 mg/dl).…”

Section: Resultados Y Discusiónunclassified

VALORES HEMATOLÓGICOS Y BIOQUÍMICA RENAL REFERENCIALES DE VENADOS COLA BLANCA (Odocoileus virginianus peruvianus) EN CAUTIVERIO.

Perales

et al. 2011

Rev. investig. vet. Perú

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“…A/G ratio reflects relative change in albumin and total globulin fractions and is therefore depressed when protein malnutrition and starvation occur. This ratio was also extremely responsive to differing densities in white-tailed deer (Sams et al 1998). It may rise in cases of infection or other disorders when an adequate protein intake occurs (LeResche et al 1974).…”

Section: Discussionmentioning

confidence: 96%

“…These parameters are therefore related to pathological conditions such as parasitic infections. Concentrations of albumin and globulins were found to be the most sensitive physiological indices in white-tailed deer (Odocoileus virginianus) herd density (Sams et al 1998). A/G ratio reflects relative change in albumin and total globulin fractions and is therefore depressed when protein malnutrition and starvation occur.…”

Section: Discussionmentioning

confidence: 99%

Is blood collected from shot Iberian ibex (Capra pyrenaica) useful for monitoring their physiological status?

Pérez

González²,

Serrano

et al. 2005

Eur J Wildl Res

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Blood samples were analysed from 175 shot Iberian ibexes, and good-quality samples were obtained in more than 56% of cases. Sixty-eight of these samples from healthy animals were then used to characterize standard values for the species. Values for 10 blood parameters [monocytes, cholesterol, creatinine, albumin, beta-globulin, gamma-globulin, albumin/globulin (A/G) ratio, calcium (Ca), phosphates and iron (Fe)] from shot ibexes did not differ from those obtained from healthy captured and physically restrained animals. Blood samples from mange-infested ibexes (n=31) were also analysed and showed higher values for eosinophils and gamma-globulin than samples from healthy animals, but lower values for cholesterol, direct bilirubin, albumin, alpha-2-globulins and chloride. Values from blood parameters can provide useful information about the health and nutritional status of animals, and blood values may thus provide a complementary source of information for animals shot in Andalusia that will prove to be useful for monitoring the physiological status of ibex populations. The protocol described here provides guidelines for quick sample collection after an animal's death and standardized instructions for sample storage, transport and analysis.

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Sensitivity of Condition Indices to Changing Density in a White-Tailed Deer Population

Abstract: I)iseas,. tss(xiati,)mm 199',

Cited by 28 publications

References 28 publications

Evidence for a trade-off between growth and body reserves in northern white-tailed deer

Evidence for a trade-off between growth and body reserves in northern white-tailed deer

VALORES HEMATOLÓGICOS Y BIOQUÍMICA RENAL REFERENCIALES DE VENADOS COLA BLANCA (Odocoileus virginianus peruvianus) EN CAUTIVERIO.

Is blood collected from shot Iberian ibex (Capra pyrenaica) useful for monitoring their physiological status?

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