Collaborative Research: Dynamic Marine Landscapes: Feedbacks and spatial patterns of corals and their associated fishes

合作研究：动态海洋景观：珊瑚及其相关鱼类的反馈和空间模式

基本信息

批准号：
1851032
负责人：
Craig Osenberg
金额：
$ 34.68万
依托单位：
University of Georgia Research Foundation Inc
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2019
资助国家：
美国
起止时间：
2019-06-01 至 2024-11-30
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1851032&HistoricalAwards=false
关键词：
Collaborative Research Dynamic Marine Landscapes

项目摘要

Nearshore habitats such as coral reefs, seagrass beds, and oyster reefs perform a number of services including reducing storm protection, nutrient cycling, and water purification. Many of these habitats have experienced widespread loss and fragmentation due to human activities. This loss threatens the services these ecosystems provide to humans as well as the extraordinary biodiversity of fishes and invertebrates that live within them. However, there is still a lot that is unknown about these habitats which makes it difficult to understand the likely impacts of habitat loss or the benefits of habitat restoration. This research focuses on habitat loss and fragmentation in coral reef ecosystems. The focus of the research is to understand how habitat loss and fragmentation affects the biodiversity of fish and crustaceans on coral reefs in the South Pacific. Because many creatures living within the coral offer important benefits to the coral such as defense from coral predators and removal of sedimentation, this research also seeks to better understand how changes in the biodiversity and abundance of fish and invertebrates associated with corals, affect the capacity of corals to withstand future impacts, such as sedimentation and outbreaks of coral-eating seastars. Understanding whether habitat loss alters the capacity of corals to withstand stress in an increasingly stressful world is critical to devise effective strategies to manage and protect coral reefs and the many services they provide to society. Many marine systems are characterized by habitat-forming foundation species, which harbor a diversity of occupants, and whose dynamics are thought to drive resilience of entire ecosystems As a result, there is widespread concern over the ongoing loss and fragmentation of biogenic habitats such as seagrass beds, oyster reefs, kelp forests, and coral reefs. Yet, without a more complete understanding of marine landscape ecology, we struggle to predict how the degradation or restoration of habitat will alter ecosystem dynamics, function, and resilience. Most research in marine landscape ecology has focused on spatial patterns of occupant abundance and biodiversity; however, the causes and consequences of these patterns are rarely explored. An important but understudied consequence of variation in occupant density is that it may alter how occupants interact with their biogenic habitat. Because occupants can benefit biogenic habitat or harm biogenic habitat, changes in occupant density can affect habitat growth and survival. Consequently, habitat-driven variation in occupant density should feed back to alter habitat dynamics and the spatial patterning of the habitat. In summary, we are limited in our understanding of why patterns in landscape ecology exist, how these patterns alter the population dynamics and spatial patterns of the occupants as well as their habitat, and what the implications of habitat degradation or restoration will be. The central objective of this proposal is to examine the causes and consequences of the nonlinear relationship between occupant abundance and the amount of biogenic habitat. Specifically, we will: (i) examine the habitat-based mechanisms that produce spatial variation in occupant density; (ii) quantify how habitat-driven occupant density feeds back to alter habitat growth and survival; and (iii) apply this knowledge to understand how bidirectional habitat-occupant interactions affect the long-term dynamics, create novel spatial patterns, and drive variation in how systems respond to and recover from disturbances.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

珊瑚礁、海草床和牡蛎礁等近岸栖息地提供多种服务，包括减少风暴防护、养分循环和水净化。由于人类活动，许多这些栖息地都经历了广泛的损失和破碎。这种损失威胁到这些生态系统为人类提供的服务以及生活在其中的鱼类和无脊椎动物的非凡生物多样性。然而，这些栖息地仍有很多未知之处，这使得我们很难了解栖息地丧失可能产生的影响或栖息地恢复的好处。这项研究的重点是珊瑚礁生态系统的栖息地丧失和破碎化。该研究的重点是了解栖息地丧失和破碎化如何影响南太平洋珊瑚礁上鱼类和甲壳类动物的生物多样性。由于生活在珊瑚中的许多生物为珊瑚提供了重要的好处，例如防御珊瑚捕食者和清除沉积物，因此这项研究还旨在更好地了解与珊瑚相关的生物多样性和鱼类和无脊椎动物的丰富度的变化如何影响珊瑚的能力。珊瑚能够承受未来的影响，例如沉积物和食珊瑚海星的爆发。了解栖息地丧失是否会改变珊瑚在压力日益增加的世界中承受压力的能力，对于制定有效的战略来管理和保护珊瑚礁及其为社会提供的许多服务至关重要。许多海洋系统的特点是形成栖息地的基础物种，这些物种拥有多样性的居住者，其动态被认为可以推动整个生态系统的恢复力。因此，人们广泛关注海草等生物栖息地的持续丧失和破碎化。床、牡蛎礁、海带森林和珊瑚礁。然而，如果没有对海洋景观生态学有更全面的了解，我们就很难预测栖息地的退化或恢复将如何改变生态系统的动态、功能和恢复力。大多数海洋景观生态学研究都集中在生物多样性和生物多样性的空间格局上。然而，这些模式的原因和后果却很少被探讨。居住者密度变化的一个重要但尚未充分研究的后果是，它可能会改变居住者与其生物栖息地相互作用的方式。由于居住者可能有益于生物栖息地或损害生物栖息地，因此居住者密度的变化会影响栖息地的生长和生存。因此，栖息地驱动的居住密度变化应该反馈以改变栖息地动态和栖息地的空间格局。总之，我们对景观生态模式存在的原因、这些模式如何改变居住者及其栖息地的人口动态和空间模式以及栖息地退化或恢复的影响的理解有限。该提案的中心目标是研究居住者丰度与生物栖息地数量之间非线性关系的原因和后果。具体来说，我们将：（i）研究产生居住密度空间变化的基于栖息地的机制； (ii) 量化栖息地驱动的居住密度如何反馈以改变栖息地的生长和生存； (iii) 应用这些知识来了解双向栖息地-居住者相互作用如何影响长期动态，创造新颖的空间模式，并推动系统如何响应干扰并从干扰中恢复的变化。该奖项反映了 NSF 的法定使命，并被视为值得通过使用基金会的智力优点和更广泛的影响审查标准进行评估来支持。

项目成果

期刊论文数量（6）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Material legacies can degrade resilience: Structure‐retaining disturbances promote regime shifts on coral reefs

物质遗产会降低复原力：结构保留干扰促进珊瑚礁的政权转变

DOI：
10.1002/ecy.4006
发表时间：
2023
期刊：
Ecology
影响因子：
4.8
作者：
Kopecky, Kai L.;Stier, Adrian C.;Schmitt, Russell J.;Holbrook, Sally J.;Moeller, Holly V.
通讯作者：
Moeller, Holly V.

3D photogrammetry improves measurement of growth and biodiversity patterns in branching corals

DOI：
10.1007/s00338-023-02367-7
发表时间：
2023-03-20
期刊：
CORAL REEFS
影响因子：
3.5
作者：
Curtis, Joseph S.;Galvan, Journ W.;Stier, Adrian C.
通讯作者：
Stier, Adrian C.

Avoiding critical thresholds through effective monitoring

通过有效监控避免关键阈值

DOI：
10.1098/rspb.2022.0526
发表时间：
2022
期刊：
Proceedings of the Royal Society B: Biological Sciences
影响因子：
0
作者：
Stier, Adrian C.;Essington, Timothy E.;Samhouri, Jameal F.;Siple, Margaret C.;Halpern, Benjamin S.;White, Crow;Lynham, John M.;Salomon, Anne K.;Levin, Phillip S.
通讯作者：
Levin, Phillip S.

Cascading benefits of mutualists' predators on foundation species: A model inspired by coral reef ecosystems

互利共生的捕食者对基础物种的级联效益：受珊瑚礁生态系统启发的模型