巴西的Pteridaceae (Polypodiopsida) 的特有地区:第一个方法
Aline Possamai Della1, Jefferson Prado2
1Programa de Pós-Graduação em Botânica, Instituto de Biociências, Universidade de São Paulo, Rua do Matão 277, CEP 05508-090, São Paulo, SP, Brazil.
Cladistics : the international journal of the Willi Hennig Society
|December 21, 2023
概括
这项研究确定了巴西Pteridaceae的主要特区 (AoE),揭示了与其他植物和动物群体的重大重叠. 许多本土种群没有得到保护,这凸显了迫切的保护需求.
科学领域:
- 生物地理和保护生物学
- 专注于确定和保护植物物种的息地 (AoE).
背景情况:
- 息地 (AoE) 区域对于生物地理分析和保护优先事项至关重要.
- 巴西,特别是其南部和东南部地区,是种多样性和特有性的新热带中心.
研究的目的:
- 为了确定巴西Pteridaceae () 的流行区 (AoE).
- 评估 AoE 与其他类型所确定的区域的一致性.
- 评估AOE与现有保护单位之间的空间对应.
主要方法:
- 在巴西编制了23,815个采集记录的数据库,其中包括205种类植物.
- 使用不同网格细胞大小 (1°,2°,3°) 的特息分析 (NDM-VNDM) 来识别 AoE.
- 从多个分析中计算共识和概括的AoE.
主要成果:
- 在圭亚那盾,巴西南部,巴西东南部和巴伊亚东南部确定了普遍的AoE.
- 这些AoE与先前确定的动物,种类和其他研究的区域保持一致.
- 阿克里和马托格罗索杜苏尔 (Mato Grosso do Sul) 成为潜在的AOE,需要进一步调查并扩大抽样.
结论:
- 大多数特有的Pteridaceae物种都在保护区之外,这表明存在关键的保护差距.
- 的分布数据是有价值的生态指标,应该为保护策略提供信息.
- 需要进一步的研究来确认阿克里和马托格罗斯索杜苏尔的AOE,并将数据纳入保护政策.
相关概念视频
03:24Seedless Vascular Plants
60.4K
Seedless Vascular Plants Were the First Tall Plants on Earth
60.4K
02:26Non-vascular Seedless Plants
64.6K
The diverse plant life on Earth—consisting of nearly 400,000 species—can be divided into three broad categories based on biological characteristics: nonvascular, seedless vascular, and seed plants.
64.6K
02:22Introduction to Plant Diversity
44.7K
From Water to Land
44.7K
02:40Epiphytes, Parasites, and Carnivores
13.0K
Plants often form mutualistic relationships with soil-dwelling fungi or bacteria to enhance their roots’ nutrient uptake ability. Root-colonizing fungi (e.g., mycorrhizae) increase a plant’s root surface area, which promotes nutrient absorption. While root-colonizing, nitrogen-fixing bacteria (e.g., rhizobia) convert atmospheric nitrogen (N2) into ammonia (NH3), making nitrogen available to plants for various biological functions. For example, nitrogen is essential for the...
13.0K
03:40Introduction to Seed Plants
62.1K
Most plants are seed plants—characterized by seeds, pollen, and reduced gametophytes. Seed plants include gymnosperms and angiosperms.
62.1K
01:31Formation of Species
39.3K
Speciation describes the formation of one or more new species from one or sometimes multiple original species. The resulting species are discrete from the parent species, and barriers to reproduction will typically exist. There are two primary mechanisms, speciation with and without geographic isolation—allopatric and sympatric speciation, respectively.
39.3K