Heatwave‐induced functional shifts in zooplankton communities result in weaker top‐down control on phytoplankton
Sign Up to like & getrecommendations! Published in 2024 at "Ecology and Evolution"
DOI: 10.1002/ece3.70096
Abstract: Abstract Freshwater ecosystems are increasingly affected by rising annual mean temperatures and heatwaves. While heatwaves are expected to have more immediate effects than mean temperature increases on local communities, comparative experimental studies are largely lacking.… read more here.
Keywords: zooplankton; shifts zooplankton; trait composition; weaker top ... See more keywords
Warming advances top-down control and reduces producer biomass in a freshwater plankton community
Sign Up to like & getrecommendations! Published in 2017 at "Ecosphere"
DOI: 10.1002/ecs2.1651
Abstract: Global warming has been shown to affect ecosystems worldwide. Warming may, for instance, disrupt plant herbivore synchrony and bird phenology in terrestrial systems, reduce primary production in oceans, and promote toxic cyanobacterial blooms in freshwater… read more here.
Keywords: phytoplankton biomass; biomass; community; top control ... See more keywords
Top-down control of methane emission and nitrogen cycling by waterfowl.
Sign Up to like & getrecommendations! Published in 2017 at "Ecology"
DOI: 10.1002/ecy.1640
Abstract: Aquatic herbivores impose top-down control on the structure of wetland ecosystems, but the biogeochemical consequences of herbivory on methane (CH4 ) and nitrogen (N) are poorly known. To investigate the top-down effects of waterfowl on… read more here.
Keywords: methane emission; control; control methane; top control ... See more keywords
Weak effects of birds, bats, and ants on their arthropod prey on pioneering tropical forest gap vegetation.
Sign Up to like & getrecommendations! Published in 2022 at "Ecology"
DOI: 10.1002/ecy.3690
Abstract: The relative roles of plants competing for resources versus top-down control of vegetation by herbivores, in turn impacted by predators, during early stages of tropical forest succession remain poorly understood. Here we examine the impact… read more here.
Keywords: tropical forest; birds bats; vegetation; top control ... See more keywords
Neural circuits for a top-down control of fear and extinction
Sign Up to like & getrecommendations! Published in 2018 at "Psychopharmacology"
DOI: 10.1007/s00213-018-5033-2
Abstract: Fear learning and extinction are controlled by the activity of three interconnected regions: the amygdala, hippocampus, and prefrontal cortex. Of these, the medial prefrontal cortex modulates specific aspects in fear and extinction via a top-down… read more here.
Keywords: circuits top; extinction; top control; neural circuits ... See more keywords
Task implementation and top-down control in continuous search
Sign Up to like & getrecommendations! Published in 2017 at "Behavioral and Brain Sciences"
DOI: 10.1017/s0140525x16000236
Abstract: Abstract Evidence from continuous search suggests that targets are detected by default, whereas distractors are processed in considerable depth. These observations shed light on task implementation and top-down control. Task implementation builds on forming dynamic… read more here.
Keywords: continuous search; top control; implementation top; task implementation ... See more keywords
Climate experimentation and the limits of top-down control: local variation of climate pilots in China
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Environmental Planning and Management"
DOI: 10.1080/09640568.2019.1619539
Abstract: The Low-Carbon Pilot (LCP) program in China is an important national initiative aiming to facilitate climate experimentation. Thus far, 87 local governments have become climate pilots and are tasked with developing innovative climate solutions with… read more here.
Keywords: variation; climate pilots; climate experimentation; climate ... See more keywords
Enhanced top‐down control of herbivore population growth on plants with impaired defences
Sign Up to like & getrecommendations! Published in 2022 at "Functional Ecology"
DOI: 10.1111/1365-2435.14175
Abstract: Abstract Herbivore densities can be regulated by bottom‐up and top‐down forces such as plant defences and natural enemies, respectively. These forces can interact with each other to increase plant protection against herbivores; however, how much… read more here.
Keywords: control; top control; herbivore; population ... See more keywords
Global meta‐analysis of how marine upwelling affects herbivory
Sign Up to like & getrecommendations! Published in 2019 at "Global Ecology and Biogeography"
DOI: 10.1111/geb.13023
Abstract: AIM: Nutrient subsidies support high primary productivity, increasing herbivore abundance and influencing their top‐down control of producers. Wind‐driven upwelling events deliver cold nutrient‐rich water to coastlines, supporting highly productive marine environments. Results from studies comparing… read more here.
Keywords: upwelling activity; marine; analysis; herbivory ... See more keywords
Southern Ocean phytoplankton under climate change: a shifting balance of bottom-up and top-down control
Sign Up to like & getrecommendations! Published in 2024 at "Biogeosciences"
DOI: 10.5194/bg-21-2473-2024
Abstract: Abstract. Phytoplankton form the base of the marine food web by transforming CO2 into organic carbon via photosynthesis. Despite the importance of phytoplankton for marine ecosystems and global carbon cycling, projections of phytoplankton biomass in… read more here.
Keywords: phytoplankton; climate change; control; southern ocean ... See more keywords