IRES: Late Paleozoic Gondwanan Ecosystems

非技术性：晚古生代冰期（LPIA）是复杂的多细胞生物进化后地球上最长、分布最广的冰期。尽管这一时间间隔对理解当代全球变化具有重要意义，但在盘古大陆的非热带地区对其研究不足。建立古生态系统变化的深时间视角对预测全球系统的未来扰动具有重要意义。我们将在阿根廷培训未来的地球科学家进行基于假设的实地研究。利用化石、沉积岩以及这些岩石和化石的地球化学来达到科学研究的目的。旨在增加传统上代表性不足的群体参与地球科学的外联活动是该项目更广泛影响的核心。技术方面：我们提出了一个关于晚古生代冰河时代（LPIA）古生态系统的多方面研究和学生指导计划。LPIA被认为是当代全球变化的最佳前第四纪模拟。尽管这段时间间隔在地球气候史上具有重要意义，但我们对海洋和陆地生态系统对晚古生代气候和环境变化的响应仍然知之甚少。我们的多学科研究将包括对阿根廷南部和西部广泛保存的植物和动物化石的古生态学、地球化学和地层学分析。为了招募更广泛的威斯康星东南地区的地球科学人员，我们严格的招聘和培训战略涉及由pi创建的新外展计划，并利用现有的多机构合作。每年，不同的本科生和研究生将随pi前往阿根廷进行为期4周的研究，研究LPIA期间的古气候和古生态变化。受人尊敬的阿根廷专家将提供LPIA古生态系统不同方面的专业知识，包括生物地层学。

Nontechnical:The late Paleozoic ice age (LPIA) was the longest, most widespread glacial interval on Earth after complex, multicellular organisms evolved. Despite the significance of this time interval for understanding contemporary global change, it is understudied in non-tropical regions of Pangea. It is of fundamental importance to establish a deep-time perspective on changing paleoecosystems to predict future perturbations in global systems. We will train future Earth scientists in hypothesis-driven, field-based research in Argentina. The scientific research objectives will be met using fossils, sedimentary rocks, and the geochemistry of these rocks and fossils. Outreach activities aimed at increasing the participation of traditionally underrepresented groups in the Geosciences form the core of the broader impacts of the project. Technical:We proposed a multi-faceted program of research and student mentorship on late Paleozoic ice age (LPIA) paleoecosystems. The LPIA is regarded as the best pre-Quaternary analogue for contemporary global change. Despite the significance of this time interval in the climate history of Earth, our understanding of the response of marine and terrestrial ecosystems to late Paleozoic climate and environmental change remains poorly understood. Our multidisciplinary research will include paleoecological, geochemical, and stratigraphic analyses on extensively preserved floral and faunal fossils in southern and western Argentina. To recruit a broader cross section of the diverse SE Wisconsin area to the Geosciences, our rigorous recruitment and training strategy involves new outreach programs created by the PIs and leveraging existing multi-institutional collaborations. Different cohorts of undergraduate and graduate students will travel with the PIs to Argentina for up to 4 weeks each year to conduct research on paleoclimatic and paleoecologic change during the LPIA. Respected Argentinian specialists will provide expertise on different aspects of LPIA paleoecosystems, including biostratigraphy.