Animal behaviour shapes the ecological effects of ocean acidification and warming: moving from individual to community‐level responses

Global Change Biology, Journal Year: 2015, Volume and Issue: 22(3), P. 974 - 989

Published: Dec. 23, 2015

Abstract Biological communities are shaped by complex interactions between organisms and their environment as well with other species. Humans rapidly changing the marine through increasing greenhouse gas emissions, resulting in ocean warming acidification. The first response animals to environmental change is predominantly modification of behaviour, which turn affects species ecological processes. Yet, many climate studies ignore animal behaviour. Furthermore, our current knowledge how global alters behaviour mostly restricted single species, life phases stressors, leading an incomplete view coinciding stressors can affect that structure biological communities. Here, we review on effects acidification animals. We demonstrate pervasive a wide range critical behaviours determine persistence success then evaluate several approaches studying acidification, identify gaps need be filled, better understand will populations altered behaviours. Our provides synthesis far‐reaching consequences behavioural changes could have for ecosystems environment. Without considering limit ability forecast impacts provide insights aid management strategies.

Language: Английский

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Climate change could drive marine food web collapse through altered trophic flows and cyanobacterial proliferation

PLoS Biology, Journal Year: 2018, Volume and Issue: 16(1), P. e2003446 - e2003446

Published: Jan. 9, 2018

Global warming and ocean acidification are forecast to exert significant impacts on marine ecosystems worldwide. However, most of these projections based ecological proxies or experiments single species simplified food webs. How energy fluxes likely change in webs response future climates remains unclear, hampering forecasts ecosystem functioning. Using a sophisticated mesocosm experiment, we model flows through species-rich multilevel web, with live habitats, natural abiotic variability, the potential for intra- intergenerational adaptation. We show experimentally that combined stress reduced from first trophic level (primary producers detritus) second (herbivores), third (carnivores). Warming isolation also flow herbivores carnivores, efficiency transfer primary detritus detritivores, living biomass herbivores, carnivores. Whilst jointly boosted producer an expansion cyanobacteria, this was converted rather than at higher levels—i.e., production constrained base web. In contrast, affected web positively by enhancing increasing Our results how climate can potentially weaken levels shift towards more detritus-based system, leading simplification altered producer–consumer dynamics, both which have important implications structuring benthic communities.

Language: Английский

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Impacts of hypoxic events surpass those of future ocean warming and acidification

Nature Ecology & Evolution, Journal Year: 2021, Volume and Issue: 5(3), P. 311 - 321

Published: Jan. 11, 2021

Language: Английский

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Climate change–contaminant interactions in marine food webs: Toward a conceptual framework

Global Change Biology, Journal Year: 2017, Volume and Issue: 23(10), P. 3984 - 4001

Published: Feb. 17, 2017

Climate change is reshaping the way in which contaminants move through global environment, large part by changing chemistry of oceans and affecting physiology, health, feeding ecology marine biota. change-associated impacts on structure function food webs, with consequent changes contaminant transport, fate, effects, are likely to have significant repercussions those human populations that rely fisheries resources for food, recreation, or culture. Published studies climate change-contaminant interactions a focus web bioaccumulation were systematically reviewed explore how ocean acidification may impact levels webs. We propose here conceptual framework illustrate accumulation as well downstream consequences ecosystem goods services. The potential social economic security coastal communities depend discussed. alter two priority classes: fat-soluble persistent organic pollutants (POPs), such polychlorinated biphenyls (PCBs), protein-binding methylmercury (MeHg). These include phenomena deemed be either dominant (i.e., leads an increase exposure) contamination susceptibility). pathways using case Northeastern Pacific Ocean. important role ecological modeling inform decision-making managing health risks chemical under also highlighted. Finally, we identify need develop integrated policies manage socioeconomic risk greenhouse gases pollutants.

Language: Английский

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Multiple Stressors and the Functioning of Coral Reefs

Annual Review of Marine Science, Journal Year: 2016, Volume and Issue: 9(1), P. 445 - 468

Published: Aug. 30, 2016

Coral reefs provide critical services to coastal communities, and these rely on ecosystem functions threatened by stressors. By summarizing the threats functioning of from fishing, climate change, decreasing water quality, we highlight that stressors have multiple, conflicting effects functionally similar groups species their interactions, overall are often uncertain because a lack data or variability among taxa. The direct links functional groups, such as predator-prey particularly uncertain. Using qualitative modeling, demonstrate this uncertainty stressor impacts (whether they positive, negative, neutral) can significant models stability, reducing is vital for understanding changes reef functioning. This review also provides guidance future functioning, which should include interactions cumulative effect

Language: Английский

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Modelling climate change impacts on marine fish populations: process‐based integration of ocean warming, acidification and other environmental drivers

Fish and Fisheries, Journal Year: 2016, Volume and Issue: 17(4), P. 972 - 1004

Published: March 6, 2016

Abstract Global climate change affects marine fish through drivers such as ocean warming, acidification and oxygen depletion, causing changes in ecosystems socioeconomic impacts. While experimental observational results can inform about anticipated effects of different drivers, linking between these ecosystem‐level requires quantitative integration physiological ecological processes into models to advance research management. We give an overview important affected by environmental drivers. then provide a review available modelling approaches for fish, analysing their capacities process‐based Building on this, we propose questions. Examples exist each model class. Recent extensions frameworks increase the potential including detailed mechanisms improving projections. Experimental energy allocation, behaviour limitations will understanding organism‐level trade‐offs thresholds response multiple More explicit representation life cycles biological traits improve description population dynamics adaptation, data food web topology feeding interactions help detail conditions possible regime shifts. Identification relevant also benefit coupling investigate spatial–temporal stock productivity integrated responses social–ecological systems. Thus, more process‐informed foundation promote model‐based extrapolations future under changing conditions.

Language: Английский

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Cephalopods as Predators: A Short Journey among Behavioral Flexibilities, Adaptions, and Feeding Habits

Frontiers in Physiology, Journal Year: 2017, Volume and Issue: 8

Published: Aug. 17, 2017

The diversity of cephalopod species and the differences in morphology habitats which they live, illustrates ability this class molluscs to adapt all marine environments, demonstrating a wide spectrum patterns search, detect, select, capture, handle kill prey. Photo-, mechano- chemoreceptors provide tools for acquisition information about their potential preys. use vision detect prey high attack speed seem be predominant pattern distributed photic zone, whereas deep-sea, development mechanoreceptor structures presence long filamentous arms are more abundant. Ambushing, luring, stalking pursuit, speculative hunting disguise, among others known modes cephalopods. Cannibalism scavenger behaviour is also some current culture techniques offer evidence feed on inert artificial foods. Feeding requirements choice change throughout species, strong ontogenetic changes body form associated with diet feeding strategies, although poorly understood planktonic larval stages. altered during senescence particularly brooding octopus females. Cephalopods able from variety food sources, detritus birds. Their particular lipids copper may help explain why crustaceans, rich these components, common diets. expected variation climate ocean acidification effects chemoreception detection capacities cephalopods unknown needs future research.

Language: Английский

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Ecological complexity buffers the impacts of future climate on marine consumers

Nature Climate Change, Journal Year: 2018, Volume and Issue: 8(3), P. 229 - 233

Published: Feb. 21, 2018

Language: Английский

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Impacts of Global Warming and Elevated CO2 on Sensory Behavior in Predator-Prey Interactions: A Review and Synthesis

Frontiers in Ecology and Evolution, Journal Year: 2019, Volume and Issue: 7

Published: March 20, 2019

Ecosystems are shaped by complex interactions between species and their environment. However, humans rapidly changing the environment through increased carbon dioxide (CO2) emissions, creating global warming elevated CO2 levels that affect ecological communities multiple processes. Understanding community responses to climate change requires examining consequences of behavioral species, such as those affecting predator prey. underlying sensory process govern these interactions, how they may be affected provides a predictive framework, but many studies examine outcomes only. This review summarizes current knowledge impacts on predator-prey with respect relevant aspects ecology, we discuss potential effects. Our specific questions concern affects ability predators prey collect information this interactions. We develop framework for understanding can alter processes (steps) cue (or signal) production, transmission reception change. includes both direct effects production resulting from changes in organismal physiology, also modulation physical via biotic changes. suggest some modalities particularly prone disruption, aquatic environments suffer more serious disruptions result collectively all steps signaling process. Temperature itself primarily operate generation transmission, implying sensory-mediated terrestrial less severe. significant biases literature terms (chemosensation), taxa (fish), stressors (elevated CO2) examined currently prevents accurate generalizations. Significant issues multimodal compensation altered or other environmental remain largely unaddressed. Future should strive fill gaps order better understand predict shifts climate.

Language: Английский

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Emergent research and priorities for shark and ray conservation

Endangered Species Research, Journal Year: 2021, Volume and Issue: 47, P. 171 - 203

Published: Nov. 10, 2021

Over the past 4 decades there has been a growing concern for conservation status of elasmobranchs (sharks and rays). In 2002, first elasmobranch species were added to Appendix II Convention on International Trade in Endangered Species Wild Fauna Flora (CITES). Less than 20 yr later, 39 5 I. Despite concern, effective management remain challenged by lack data population many species, human−wildlife interactions, threats viability, efficacy approaches. We surveyed 100 most frequently published cited experts and, based ranked responses, prioritized research questions conservation. To address these questions, we then convened group 47 from 35 institutions 12 countries. The organized into following broad categories: (1) threats, (2) ecology, (3) management. For each section, sought synthesize existing knowledge, describe consensus or diverging views, identify gaps, suggest promising future directions priorities. resulting synthesis aggregates an array perspectives emergent priority

Language: Английский

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