Three-dimensional ecological niche modelling of midwater jellyfish

中层水母三维生态位生态建模

• 批准号: 431428491
• 负责人: Dr. Gerlien Verhaegen
• 金额: --
• 依托单位: Zoologisches Institut und Museum
• 依托单位国家: 德国
• 项目类别: Research Fellowships
• 财政年份: 2019
• 资助国家: 德国
• 起止时间: 2018-12-31 至 2021-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/431428491?language=en
• 关键词: Three; dimensional; ecological; niche; modelling

The midwater, the oceans’ pelagic zone between 200 and 4000 meters of depths, is the largest continuous biome on our planet. Despite the technological advances in survey techniques over the last 30 years, less than 1% of this vast and hard to reach habitat has been sampled. As pelagic ecosystems are being widely acknowledged for their relevance in ecosystem services, our knowledge gap of the midwater is becoming an increasing problem as it hampers our ability to predict how it will be affected by global change and anthropogenic pressures. Here, based on underwater video footage collected worldwide, we will study the most abundant and relevant midwater organisms: the hydromedusae (Cnidaria: Hydrozoa). Using ecological niche modelling in three dimensions (3D), we will answer fundamental questions regarding their ecology, distribution, diversity, and speciation mechanisms. The final output of our project will be a 3D interactive map projecting the realised niches of different midwater jellyfish species on a globe under present and future climatic scenarios. Our findings regarding midwater ecology will allow us to predict how climate change will impact the midwater, and therefore give us a glimpse on what our oceans will look like in the future.

中层水，即海洋中200至4000米深处的水层，是我们星球上最大的连续生物群落。尽管在过去的30年里，调查技术取得了技术进步，但只有不到1%的这片广阔而难以到达的栖息地被采样。由于大洋生态系统在生态系统服务方面的相关性得到广泛承认，我们对中层水的知识差距正在成为一个日益严重的问题，因为它妨碍我们预测中层水将如何受到全球变化和人为压力的影响。在这里，根据世界各地收集的水下视频片段，我们将研究最丰富和最相关的中层水生物：水螅水母（刺胞纲：水螅虫）。使用三维（3D）生态位建模，我们将回答有关其生态，分布，多样性和物种形成机制的基本问题。我们的项目的最终输出将是一个3D的互动地图投影实现生态位的不同中层水水母物种的地球仪下，目前和未来的气候情景。我们关于中层水生态的发现将使我们能够预测气候变化将如何影响中层水，从而让我们了解我们的海洋在未来会是什么样子。