Optimising occurrence data in species distribution models: sample size, positional uncertainty, and sampling bias matter

Ecography, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 2, 2024

Species distribution models (SDMs) have proven valuable in filling gaps our knowledge of species occurrences. However, despite their broad applicability, SDMs exhibit critical shortcomings due to limitations occurrence data. These include, particular, issues related sample size, positional uncertainty, and sampling bias. In addition, it is widely recognised that the quality as well approaches used mitigate impact aforementioned data depend on ecology. While numerous studies evaluated effects these SDM performance, a synthesis results lacking. without comprehensive understanding individual combined effects, ability predict influence modelled species–environment associations remains largely uncertain, limiting value model outputs. this paper, we review bias, ecology We build upon findings provide recommendations for assessment intended use SDMs.

Language: Английский

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Evaluating the design of the first marine protected area network in Pacific Canada under a changing climate

FACETS, Journal Year: 2024, Volume and Issue: 9, P. 1 - 18

Published: Jan. 1, 2024

Marine protected area (MPAs) networks can buffer marine ecosystems from the impacts of climate change by allowing species to redistribute as conditions and reducing other stressors. There are, however, few examples where has been considered in MPA network design. In this paper, we assess how considerations were integrated into design a newly released Northern Shelf Bioregion British Columbia, Canada, then evaluate resulting against projected physical biogeochemical changes biological responses. We found that representation, replication, size spacing recommendations phase met most cases. Furthermore, despite varying degrees temperature, dissolved oxygen, aragonite saturation across network, suitable habitat for demersal fish is remain some redistribution among sites. also mid-depth MPAs are particularly important persistence, move deeper avoid warming shallower areas. Our results highlight representative with adequate incorporates areas trajectory, should change.

Language: Английский

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Consequence of habitat specificity: a rising risk of habitat loss for endemic and sub-endemic woody species under climate change in the Hyrcanian ecoregion

Regional Environmental Change, Journal Year: 2024, Volume and Issue: 24(2)

Published: April 20, 2024

Abstract Endemic species are more impacted by climate change than other taxa. However, assessing the vulnerability of endemics to these changes in some regions, such as Hyrcanian forest, is limited, despite its importance for biodiversity and ecosystem function. To address question expected habitat shifts under across ecoregion, we built an ensemble distribution models (SDM) two emission scenarios (RCP 4.5 RCP 8.5) 15 endemic woody identify potential priority conservation areas, also applied a spatial prioritization approach. Overall, our results suggest that impacts severe on eastern parts region (Golestan) Talysh Mountains (north-western ecoregion) with over 85% 34% loss suitable habitats next 80 years. The central part Alborz (Mazandaran) areas could be climatic refugia future conditions most prominent Ruscus hyrcanus , Gleditsia capsica Acer velutinum Frangula grandifolia Buxus hyrcana . worrying predicted studied taxa would dramatically affect stability resilience forests, threatening thus ecoregion. We present first estimation risks involved provide useful support regional climate-adaptation strategy, indicating maintaining preserving resources. Notably, only 13.4% designated management will located within current protected yet majority classified low priority.

Language: Английский

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Identifying important habitat for northern bottlenose and Sowerby's beaked whales in the western North Atlantic

Aquatic Conservation Marine and Freshwater Ecosystems, Journal Year: 2024, Volume and Issue: 34(1)

Published: Jan. 1, 2024

Abstract Understanding habitat requirements for species at risk is crucial effective conservation management, even though the location and extent of vital habitats may be unknown rare or elusive species. In case marine species, determining important often relies on limited occurrence data extrapolation from distribution models (SDMs). SDMs predict by associating records with environmental variables, assuming a functional ecological relationship. This study focuses northern bottlenose whales (NBW; Hyperoodon ampullatus ) Sowerby's beaked (SBW; Mesoplodon bidens in western North Atlantic. As both NBW SBW are Canada, objective was to identify function guide efforts. The analysis mapped all available geographic used passive acoustic monitoring (PAM) inform development ensemble potential assess persistence realized use. Important were found primarily concentrated along continental shelf edges, an average depth 1200 m ± 460 SD. All areas support foraging movement critical life history functions Gully other submarine canyons off eastern Nova Scotia emerged as validating existing Critical Habitat NBW. However, spatial–temporal patterns diverged either side this region. North‐eastern Newfoundland identified next closest area near‐year‐round presence NBW, whereas south‐western Scotian Shelf region, Georges Bank Fundian Channel supported persistent SBW. By integrating multiple sources (sightings, detections SDMs) demonstrating temporal use SBW, provides valuable insights identifying, protecting managing whales.

Language: Английский

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Climate change drives fish communities: Changing multiple facets of fish biodiversity in the Northwest Pacific Ocean

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 955, P. 176854 - 176854

Published: Oct. 11, 2024

Language: Английский

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Cetacean feeding modelling using machine learning: A case study of the Central-Eastern Mediterranean Sea

Ecological Informatics, Journal Year: 2025, Volume and Issue: unknown, P. 103066 - 103066

Published: Feb. 1, 2025

Language: Английский

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Impact of climate change on the waters off southwest Taiwan: predicted alterations in moonfish distribution and catch rates

Frontiers in Marine Science, Journal Year: 2025, Volume and Issue: 12

Published: March 5, 2025

Introduction Prior research emphasizes the beneficiaries and detractors in fisheries due to climate change, focusing on alterations biomass, species mix, potential yields. Comprehending impact of change income maritime nations is an essential subsequent step formulating effective socio-economic policies food sustainability plans mitigate adapt change. Globally, our understanding small-scale remains inadequate, despite their significance for security livelihoods. Methods This study demonstrates by using global circulation model (GCM: IPSL) that moonfish catches react favorably southwest Taiwan, through analysis primary fishery data from 2014-2020 spanning two seasons – northeast monsoons generalized additive models. The anticipated habitat shifts were utilized examine future environmental changes catch rates. Result By 2060s, emerged as a winner this region. habitats are projected shift westward during monsoon, with mean centroid displacement about 50-150 Km between RCP 2.6 8.5 NE monsoon while 20-40 SW monsoon. A possible explanation could be Taiwan Strait (TS) may serve geographical barrier northward migration south-dwelling moonfish. further rates increase 22.5% 17.2% beyond present 2060s under elevated CO2 emission scenarios respectively. Discussion Our findings indicate necessity comprehensive economic evaluations regarding impacts regional marine fisheries, contributing adaptive conservation management fish habitats.

Language: Английский

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Navigating the unknown: assessing anthropogenic threats to beaked whales, family Ziphiidae

Royal Society Open Science, Journal Year: 2024, Volume and Issue: 11(4)

Published: April 1, 2024

This review comprehensively evaluates the impacts of anthropogenic threats on beaked whales (Ziphiidae)—a taxonomic group characterized by cryptic biology, deep dives and remote offshore habitat, which have challenged direct scientific observation. By synthesizing information published in peer-reviewed studies grey literature, we identified available evidence across 14 for each Ziphiidae species. Threats were assessed based their pathways effects individuals, revealing many gaps understanding risks faced whales. applying a comprehensive taxon-level analysis, found that all whale species are affected multiple stressors, with climate change, entanglement plastic pollution being most common documented as having serious impact individuals included whaling, military sonar, entanglement, depredation, vessel strikes, plastics oil spills. emphasizes urgent need targeted research to address range uncertainties, including cumulative population-level impacts. Understanding stressors can support future assessments, guide practical mitigation strategies advance current rare elusive marine

Language: Английский

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Warming promotes expansion of a key demersal fishing resource of the western Mediterranean

Frontiers in Marine Science, Journal Year: 2024, Volume and Issue: 11

Published: Nov. 8, 2024

Climate change is affecting marine ecosystems altering the distribution and abundance of organisms, with implications for fisheries food security. This warming-induced reshuffle in species could bring threats opportunities to fisheries, but needs be assessed promote effective actions foster resilience. We analyzed density patterns deep-sea rose shrimp ( Parapenaeus longirostris ), as well identified main environmental have drivers shaping its habitat along western Mediterranean (Iberian Peninsula) during period 2001–2020. Using spatial models developed concurrently an ensemble four Regional Models (RCMs), we projected this next century under two climate scenarios (RCP4.5 RCP8.5). Bathymetry sea bottom temperature drove species, leading a marked northward expansion last decades. Our results increase especially throughout area 21st century, mirroring effect global warming. Consequently, most distant (i.e. 2100s) warmest scenario (RCP8.5) presented also highest densities low internal variability ensemble. discussed power assessing uncertainties using RCM ensemble, particularly complex oceanographic features, robust information scientific advice management.

Language: Английский

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Estimating a physiological threshold to oxygen and temperature from marine monitoring data reveals challenges and opportunities for forecasting distribution shifts

Ecography, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 19, 2024

Species distribution modeling is increasingly used to describe and anticipate consequences of a warming ocean. These models often identify statistical associations between environmental conditions such as temperature oxygen, but rarely consider the mechanisms by which these variables affect metabolism. Oxygen jointly govern balance oxygen supply demand, theory predicts thresholds below population densities are diminished. However, parameterizing with this joint dependence challenging because paucity experimental work for most species, limited applicability findings in situ. Here we ask whether temperature‐sensitivity can be reliably inferred from species observations field, using U.S. Pacific Coast model system. We developed that adapted metabolic index — compound metric incorporates effects on ratio demand applying an Arrhenius equation non‐linear threshold function link fish distribution. Through simulation testing, found our could not precisely estimate parameters due inherent features data. estimated overall effect. When applied case studies real data two groundfish new provided better fit spatial one sablefish Anoplopoma fimbria , than previously models, did other, longspine thornyhead Sebastolobus altivelis . This physiological framework may improve predictions distribution, even novel conditions. Further efforts combine insights physiology realized distributions will forecasts species' responses future changes.

Language: Английский

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