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首页> 外文期刊>Canadian Journal of Zoology >Geophagic behavior in the mountain goat (Oreamnos americanus): support for meeting metabolic demands
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Geophagic behavior in the mountain goat (Oreamnos americanus): support for meeting metabolic demands

机译：山羊（Oreamnos americanus）的地相行为：支持满足代谢需求

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摘要

Geophagy, the intentional consumption of earth or earth matter, occurs across taxa. Nutrient and mineral supplementation is most commonly cited to explain its adaptive benefits; yet many specific hypotheses exist. Previous research on mountain goats (Oreamnos americanus (Blainville, 1816)) broadly supports nutrient supplementation as the adaptive benefit of geophagy. Here, we use data from an undisturbed population of mountain goats inhabiting a geologically distinct coastal mountain range in southwestern British Columbia to test the hypothesis that geophagic behavior is a proximate mechanism for nutrient supplementation to meet metabolic demands. Our population, observed for over 30 consecutive years, returned each year with high fidelity to the same geophagic lick sites. Logistic regression demonstrated an overall effect of sodium and phosphorus, but not magnesium and calcium, on lick preferences. These data, in conjunction with field observations, provide support for the hypothesis that geophagyprovides nutrient supplementation and that geophagy may be an obligate behavior to meet necessary metabolic demands within this population. The implications of our results suggest the necessity to preserve historically important habitats that may be necessary for population health.
机译：地理吞噬（地球或地球物质的有意消耗）发生在整个分类单元中。最常引用营养和矿物质补充来解释其适应性益处;但是存在许多特定的假设。先前对山羊（Oreamnos americanus（Blainville，1816）的研究）广泛支持营养补充作为地理吞噬的适应性益处。在这里，我们使用来自居住在不列颠哥伦比亚省西南部地质上不同的沿海山脉的未受干扰的山羊种群的数据来检验以下假设：地相行为是营养补充以满足代谢需求的最接近机制。我们的人口连续30多年被观察，每年都以很高的保真度返回到相同的吞噬性舔食点。 Logistic回归表明，钠和磷（而不是镁和钙）对舔食的总体影响。这些数据与现场观察相结合，为以下假设提供了支持：地理吞噬提供营养补充，并且地理吞噬可能是满足该种群内必要的代谢需求的必不可少的行为。我们的研究结果表明，有必要保护可能对人口健康必要的具有历史意义的重要栖息地。

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