Non-naturalized alien plants receive fewer flower visits than naturalized and native plants in a Swiss botanical garden
Non-naturalized alien plants receive fewer flower visits than naturalized and native plants in a Swiss botanical garden
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DOI：
10.1016/j.biocon.2014.11.043
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发表时间：
2015-02
影响因子：
5.9
通讯作者：
Mialy Razanajatovo;C. Föhr;M. Fischer;D. Prati;M. Kleunen
中科院分区：
文献类型：
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作者：
Mialy Razanajatovo;C. Föhr;M. Fischer;D. Prati;M. Kleunen
许多动物传粉植物物种已被引入非本土地区，而没有通常的传粉者。然而，这些外来物种中的一些设法建立繁殖归化种群，这可能会对本地植物产生负面影响。最近的研究表明，许多归化的外来物种可以很容易地吸引本地传粉者。然而，目前还不知道尚未建立归化种群的外来物种是否在吸引传粉者方面不太成功。因此，我们测试了非归化的外来物种的访花率是否低于归化的外来物种和本地物种。对瑞士伯尔尼植物园的185种本地植物、37种归化外来植物和224种非归化外来植物的访花行为进行了比较研究。我们的遗传学校正分析表明，非归化的外来物种比归化的外来物种和本地物种收到更少的花访客。本地，归化的外来和非归化的外来物种访问了类似的花游客社区。此外，在归化的外来物种中，在瑞士分布范围更广的物种接待了更多样化的花卉游客。虽然有人建议，大多数外来植物可以很容易地融入本地植物传粉网络，我们的证据表明，在非本地地区吸引花游客的能力是不同的归化和非归化的外来植物。因此，我们认为，外来植物的成功归化可能与访花有关。
Many animal-pollinated plant species have been introduced to non-native regions without their usual pollinators. Nevertheless, some of these alien species managed to establish reproducing naturalized populations, which might negatively affect native plants. Recent studies have shown that many naturalized alien species can readily attract native pollinators. However, it is not known whether alien species that have not established naturalized populations are less successful in attracting pollinators. Therefore, we tested whether flower-visitation rates are lower for non-naturalized aliens than for naturalized alien and native species. We conducted a comparative study on flower visitation of 185 native, 37 naturalized alien and 224 non-naturalized alien plant species in the Botanical Garden of Bern, Switzerland. Our phylogenetically corrected analyses showed that non-naturalized alien species received fewer flower visitors than both naturalized alien and native species. Native, naturalized alien and non-naturalized alien species were visited by similar flower-visitor communities. Furthermore, among the naturalized alien species, the ones with a broader distribution range in Switzerland received a more diverse set of flower visitors. Although it has been suggested that most alien plants can readily integrate into native plant–pollinator networks, we show evidence that the capacity to attract flower visitors in non-native regions is different for naturalized and non-naturalized alien plants. Therefore, we conclude that successful naturalization of alien plants may be related to flower visitation.