Links between individual performance, trace elements and stable isotopes in an endangered caribou population

Rioux, Ève; Pelletier, Fanie; Mosbacher, Jesper Bruun; Lesmerises, Frédéric; St‐Louis, Richard; Kutz, Susan; St‐Laurent, Martin‐Hugues

doi:10.1016/j.gecco.2022.e02234

Cited by 4 publications

(2 citation statements)

References 141 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A similar approach could be used with multiple species to assess the effects of changing forage resources and environmental demands on the movement and production of domestic and wild ungulates in rangelands through products such as the Rangeland Analysis Platform [ 48 , 49 ]. However, further applications of our model relationships should be verified using direct measures of wild caribou with markers of mineral status, such as bone density (Ca, P), metalloenzymes (Cu, Zn, Fe), and tissue concentration (e.g., liver Cu and Zn) in relation to seasonal movement and diet [ 50 , 51 ].…”

Section: Discussionmentioning

confidence: 99%

Estimating Mineral Requirements of Wild Herbivores: Modelling Arctic Caribou (Rangifer tarandus granti) in Summer

Oster,

Gustine,

Smeins

et al. 2024

Animals

View full text Add to dashboard Cite

Mineral requirements are poorly described for most wildlife. Consequently, the role of forage minerals in movement and productivity are poorly understood for sedentary and migratory ungulates, such as reindeer and caribou (Rangifer tarandus). We applied estimates of maintenance, lactation, body mass change, and antler growth to production curves (body mass, daily intake, and milk yield) for female caribou to calculate their mineral requirements over summer. The total requirements (mg or g·d−1) were divided by the daily intake (kg·d−1) to estimate the minimum concentration of minerals required in the diet (mg or g·kg−1) to balance demand. The daily requirements (mg·d−1) of all minerals increased from parturition to the end of summer. The minimum dietary concentrations (mg·kg−1) of macro-minerals (Ca, P, Mg, Na, K) declined as food intake (kg·d−1) increased over summer. The minimum dietary concentrations (Fe, Mn, Cu, Zn) were heavily influenced by body mass gain, which increased through late lactation even though food intakes rose. Our modeling framework can be applied to other wild ungulates to assess the impacts of changing forage phenology, plant community compositions, or environmental disturbances on movement and productivity.

show abstract

Section: Discussionmentioning

confidence: 99%

Estimating Mineral Requirements of Wild Herbivores: Modelling Arctic Caribou (Rangifer tarandus granti) in Summer

Oster,

Gustine,

Smeins

et al. 2024

Animals

View full text Add to dashboard Cite

show abstract

“…The similarity in results of liver and hair was expected and highlights that hair is a suitable biomarker to monitor element-induced shifts in long-term health, at least for red deer, as also proposed for other wildlife species [ 24 – 27 ]. The use of hair in element-health assessments has several benefits over traditionally used organ tissue as it can be repeatedly collected from the same individual using non-invasive methods and it can be stored at room temperature, which is ideal to assess nutritional or health status of protected or endangered species [ 26 , 62 ].…”

Section: Discussionmentioning

confidence: 99%

Direct and Indirect Linkages Between Trace Element Status and Health Indicators - a Multi-tissue Case-Study of Two Deer Species in Denmark

van Beest,

Schmidt,

Frederiksen

et al. 2023

Biol Trace Elem Res

View full text Add to dashboard Cite

Measuring trace element concentrations in tissue can be a valuable approach to monitor animal health status. Temporal variation in the absorption, transport, and storage of elements between different tissues can, however, complicate the assessment of element-health relationships. Here, we measured concentrations of selected essential (copper (Cu), zinc (Zn), selenium (Se)) and non-essential (arsenic (As), cadmium (Cd), lead (Pb)) trace elements within blood, liver, kidney, and hair of fallow deer (Dama dama; N=20) and red deer (Cervus elaphus; N=21). Using multivariate regression and structural equation models, we estimated direct and indirect linkages between tissue-specific trace element profiles and long- (body condition) and short-term (serum protein biomarkers for acute inflammation, infection, and malnutrition) health indicators. Trace element concentrations varied markedly and were weakly correlated among tissues, with the exception of Se. After accounting for sex- and site-differences in trace element concentrations, body condition of red deer was directly, and positively, associated to trace element status in liver and hair, but not in kidney. For both deer species, trace element status in blood was directly linked to serum protein status with an indirect positive association to deer body condition. For fallow deer, no direct association between trace element status and body condition was detected in any of the tissues, possibly because of elemental homeostasis, and because all individuals were in good clinical health. This study shows that hair can serve as an effective, non-invasive, biomarker in deer health assessments, yet, to fully uncover trace element-health relationships a variety of sample matrices is preferred.

show abstract

Correlates of mid-winter pregnancy and early reproductive outcomes in a reintroduced elk (Cervus canadensis) population

Hooven,

Williams,

Hast

et al. 2024

Mamm Biol

View full text Add to dashboard Cite

Links between individual performance, trace elements and stable isotopes in an endangered caribou population

Cited by 4 publications

References 141 publications

Estimating Mineral Requirements of Wild Herbivores: Modelling Arctic Caribou (Rangifer tarandus granti) in Summer

Estimating Mineral Requirements of Wild Herbivores: Modelling Arctic Caribou (Rangifer tarandus granti) in Summer

Direct and Indirect Linkages Between Trace Element Status and Health Indicators - a Multi-tissue Case-Study of Two Deer Species in Denmark

Correlates of mid-winter pregnancy and early reproductive outcomes in a reintroduced elk (Cervus canadensis) population

Contact Info

Product

Resources

About