相关实验视频

Updated: May 13, 2025

Field Collection and Laboratory Maintenance of Canopy-Forming Giant Kelp to Facilitate Restoration

Field Collection and Laboratory Maintenance of Canopy-Forming Giant Kelp to Facilitate Restoration

Published on: June 7, 2024

温度驱动海草在西北大西洋的恢复

Fee O H Smulders^1,2, Justin E Campbell^3,4, Andrew H Altieri^5,6

¹Aquatic Ecology and Water Quality Management Group, Wageningen University & Research, Wageningen, the Netherlands.

Global change biology

|April 14, 2025

概括

较高的温度可以帮助海草从干扰中恢复,但营养物质的流失与食草动物的放牧相结合,威胁着它的弹性. 沿海生态系统的健康取决于理解这些复杂的相互作用.

科学领域:

海洋生态海洋生态学
生态系统的弹性生态系统的弹性
气候变化影响气候变化的影响.

背景情况:

沿海生态系统面临着由气候驱动的草食动物,温度和营养物流失的变化所带来的威胁.
由于有限的大规模,多重压力现场实验,基础物种的生态弹性不明.

研究的目的:

评估海草 (热带海洋植物) 对其地理范围内的干扰的弹性.
检查非生物和生物因素中的环境梯度如何影响乌草恢复.

主要方法:

通过监测模拟脉冲干扰 (生物质去除) 后一年的恢复率来评估乌草的弹性.
研究了温度,营养物流失,草食动物放牧 (meso和大草食动物) 以及光线可用性对恢复的影响.

主要成果:

较高的温度通常会增强海草的恢复,这与温带研究相反.
营养素对个人恢复的影响最小,但与高草食牧场相结合时,降低了地面恢复.
地下恢复受到高营养和大草食牧场的联合影响;光线的影响最小.

结论:

热带海草的弹性,特别是在较冷的亚热带水域,最初可能会受益于变暖.
营养供应和放牧压力的转变对海草恢复和沿海生态系统稳定性构成未来的威胁.

关键词:

泰拉西亚测试 (Thalassia testudinum) 是一种植物.干扰是一种干扰.肥胖症是什么肥胖症是什么肥胖症是什么度梯度的度梯度是指度上的梯度.植物与草食动物的相互作用恢复恢复恢复恢复的时间恢复力恢复力

更多相关视频

Assessing Intertidal Populations of the Invasive European Green Crab

Assessing Intertidal Populations of the Invasive European Green Crab

Published on: September 16, 2020

Thermal Limits Determination for Zooplankton Using a Heat Block

Thermal Limits Determination for Zooplankton Using a Heat Block

Published on: November 18, 2022

相关概念视频

Responses to Heat and Cold Stress

Responses to Heat and Cold Stress

Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.

Adaptations that Reduce Water Loss

Adaptations that Reduce Water Loss

Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.

Primary Production

Primary Production

The total amount of energy acquired by primary producers in an ecosystem is called gross primary production (GPP). However, of this energy, producers use some for metabolic processes, and some is lost as heat, decreasing the amount of energy available to the next trophic level. The remaining usable amount of energy is called the net primary productivity (NPP). In terrestrial ecosystems, NPP is driven by climate, while light penetration and nutrient availability drive NPP in aquatic ecosystems.

Global Climate Change

Global Climate Change

Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.

Osmoregulation in Fishes

Osmoregulation in Fishes

When cells are placed in a hypotonic (low-salt) fluid, they can swell and burst. Meanwhile, cells in a hypertonic solution—with a higher salt concentration—can shrivel and die. How do fish cells avoid these gruesome fates in hypotonic freshwater or hypertonic seawater environments?

Responses to Drought and Flooding

Responses to Drought and Flooding

Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.