Leguminosae endemic to the Chaco facing quaternary climate fluctuations

IF 0.9 4区 生物学 Q4 PLANT SCIENCES Acta Botanica Brasilica Pub Date : 2022-01-01 DOI:10.1590/0102-33062021abb0346
T. Sinani, Alan Sciamarelli, M. Bueno, Â. L. Sartori
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引用次数: 1

Abstract

We investigated the influence of Quaternary climate fluctuations on the current distribution of three species of Leguminosae (Fabaceae) occurring in the Chaco. Potential distribution models of Bauhinia hagenbeckii , Muellera nudiflora and Neltuma rubriflora with a supposed endemism area were generated. The Last Interglacial, Last Glacial Maximum, Holocene Middle and current scenarios were used. The species showed a potential distribution according to the South American biogeographic history regarding the glacier regression and the formation of the Dry Diagonal. The models for each Quaternary event exhibited a tolerable AUC ≥ 0.9 for the validations. The LGM was the event that favoured the current species establishment areas in the Dry Diagonal. Quaternary climatic events were related to the current Leguminosae distribution. Bauhinia hagenbeckii and Neltuma rubriflora present similar areas of environmental suitability. Muellera nudiflora models with areas of environmental suitability were larger for the LIG and Holocene than for areas from other periods. All scenario models (LGM, HM and current scenario) highlighted the potential distribution of the three species concomitant with the glacier regression events and were consistent with the history of formation of South American dry areas.
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面对第四纪气候波动的查科特有豆科植物
研究了第四纪气候变化对查科地区三种豆科植物分布的影响。建立了紫荆花、海棠花和红叶Neltuma rubriflora的潜在分布模型。使用了末次间冰期、末次极大期、全新世中期和当前情景。根据南美洲冰川消退和干对角线形成的生物地理历史,该物种具有潜在的分布。每个第四纪事件模型的可容忍AUC≥0.9。LGM事件有利于干对角线上现有的物种建立区。第四纪气候事件与豆科植物的分布有关。紫荆和红叶荷叶具有相似的环境适宜性。LIG和全新世的裸藻模式的环境适宜性面积大于其他时期的模式。所有情景模型(LGM、HM和current)都强调了这三种物种与冰川消退事件伴随的潜在分布,并与南美洲干旱地区的形成历史相一致。
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来源期刊
Acta Botanica Brasilica
Acta Botanica Brasilica PLANT SCIENCES-
CiteScore
2.30
自引率
9.10%
发文量
32
审稿时长
6-12 weeks
期刊介绍: Experimental, theoretical and applied papers on all aspects of plant (including algae) and fungi biology are welcome. The submitted manuscript or its essential content must not have been published previously or be under consideration for publication elsewhere. Contributions should be substantial, written in high-quality English and show general interest. We expect that the submitted manuscript presents a great novelty in Botany, and this should attract a wide audience. Considering this, case studies are only considered if the narrative and implications are provided to be of general interest. Thus, manuscripts that report aspects of local interest are discouraged unless the implications of the findings are wide-reaching. Manuscripts with agronomic subjects are expected to contain a substantial amount of basic plant biology. Please see below some details for specific area.
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