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首页> 外文期刊>Alpine botany >Phenological shifts and flower visitation of 185 lowland and alpine species in a lowland botanical garden
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Phenological shifts and flower visitation of 185 lowland and alpine species in a lowland botanical garden

机译：低地植物园中185种低地和高山物种的物候变化和花访

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Many plant species respond to climate change by phenological shifts, usually with an earlier flowering onset. However, the variability in flowering responses to changed climatic conditions is large, and rare plant species, which are likely to have a low environmental tolerance, may be less able to shift their phenology than common ones. If plant species respond to climate change by shifting their flowering phenology, plant-pollinator interactions may become disrupted. However, it is vital for the reproduction of animal-pollinated plants, and thus for long-term population survival, that plants can attract pollinators. This might be especially difficult for rare species as they may depend on one or few pollinator species. To assess how climatic conditions affect the phenology of common and rare plant species, and whether the plant species attract potential pollinators, we assessed flowering onset and flower visitation in the lowland Botanical Garden of Bern, Switzerland, for 185 native plant species originating from different altitudinal zones. Plants from high elevations flowered earlier and showed more pronounced phenological shifts than plants from lower elevations, independent of species rarity. The probability, number, and duration of flower visits and the number of flower-visitor groups were independent of the altitudinal zone of plant origin and of species rarity. The composition of flower-visitor groups did also not depend on the altitudinal zone of plant origin and on species rarity. Thus, rare and common alpine plants may generally respond to climate change by an earlier flowering onset, and may be able to establish novel interactions with pollinators.
机译：许多植物物种通过物候变化对气候变化做出反应，通常是开花较早。但是，随着气候条件的变化，开花反应的变异性也很大，而且稀有植物物种（可能具有较低的环境耐受性）可能不如普通植物改变其物候。如果植物物种通过改变其开花物候而对气候变化做出反应，则植物-授粉媒介的相互作用可能会受到干扰。但是，植物可以吸引传粉媒介对于动物授粉植物的繁殖至关重要，因此对于长期种群生存至关重要。对于稀有物种而言，这可能尤其困难，因为它们可能取决于一种或几种传粉媒介物种。为了评估气候条件如何影响常见和稀有植物物种的物候，以及该植物物种是否吸引潜在的传粉媒介，我们评估了瑞士伯尔尼低地植物园中185种源自不同海拔的本地植物物种的开花起点和花期访问。区域。高海拔地区的植物比低海拔地区的植物更早开花，并表现出更明显的物候变化，而与物种稀有性无关。花访的可能性，数量和持续时间以及花访者分组的数量与植物起源和物种稀有性的垂直区域无关。访花者群体的组成也不取决于植物起源的海拔区域和物种稀有性。因此，稀有和常见的高山植物通常可以通过较早的开花期来应对气候变化，并且可能能够与传粉媒介建立新的相互作用。

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