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首页> 外文期刊>Perspectives in plant ecology, evolution and systematics >Beyond endemism, expanding conservation efforts: What can new distribution records reveal?
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Beyond endemism, expanding conservation efforts: What can new distribution records reveal?

机译：超越民族主义，扩大保护努力：新的分销记录可以揭示什么？

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Geographical range is one of the critical features for species conservation assessment. Nevertheless, species distribution is frequently unknown, undervalued or overlooked. During a broad taxonomic and floristic study of the southern South American prickly pear species (Opuntia spp.), new records of a species previously considered endemic to Argentina have been found in Uruguay and Brazil. Molecular phylogenetic inference was carried out to further evaluate the identity of the new records, and ecological niche models were implemented to test how the new records would fit in the previous known distribution of the species. Through molecular and morphological evidence, we confirmed the new records of Opuntia bonaerensis for Brazilian and Uruguayan floras and discussed its phylogenetic relationship and morphological similarities with closely related species. Our new records uncovered a distribution pattern congruent with the Neotropical Peripampasic Orogenic Arc, which must be further explored to better determine the biogeographic history of the species. Ecological niche models (ENM) revealed that O. bonaerensis likely had a putative ancient distribution across the grasslands and shrublands in the Pampean region largely congruent with the populations found in Brazil and Uruguay, suggesting relictual Pleistocene populations of the species and the role of glacial/interglacial cycles on the distribution of the species. In a prospective climate change scenario, ENM suggests that the species would in general be more restricted to the southernmost limits of the Pampa region and previous outlying records from Mendoza (Argentina) are a putative future refuge for O. bonaerensis. The importance of these new records for biodiversity and conservation assessment efforts that are ongoing at different scales in Brazil and neighboring areas is highlighted.
机译：地理范围是物种保护评估的关键特征之一。然而，物种分布经常是未知的，低估或被忽视的。在广泛的分类学和南方南美刺梨（Opuntia SPP）的广泛分类和植物学研究中，在乌拉圭和巴西发现了以前被认为是特有的物种的新记录。进行分子系统发育推断，以进一步评估新记录的身份，并实施生态利基模型以测试新记录如何适应本物种的先前已知分布。通过分子和形态的证据，我们确认了巴西和乌拉圭群植物的仙色发育和乌拉圭群体的新记录，并讨论了与密切相关的物种的系统发育关系和形态学相似之处。我们的新记录发现了与新型幽皮肿大的造山电弧一致的分配模式，必须进一步探索以更好地确定物种的生物地理历史。生态利基模型（恩姆）透露，O.Bonaerensis可能在Pampean地区的草地和灌木丛中有一个推定的古老分布，在巴西和乌拉圭在巴西和乌拉圭发现的种群，建议物种的封面和冰川的作用以及冰川/恐慌物种分布的中间尖循环。在一个潜在的气候变化方案中，恩姆认为，这些物种通常会受到汉普地区最南端的最南端，并从门一猿（阿根廷）的偏远记录是O. Bonaerensis的一个推定的未来避难所。突出了在巴西和邻近地区的不同尺度上正在进行的生物多样性和保护评估努力的这些新记录的重要性。

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