Standardizing Ecosystem Morphological Traits from 3D Information Sources

Trends in Ecology & Evolution, Год журнала: 2020, Номер 35(8), С. 656 - 667

Опубликована: Май 15, 2020

Язык: Английский

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Quantifying tropical forest structure through terrestrial and UAV laser scanning fusion in Australian rainforests

Remote Sensing of Environment, Год журнала: 2022, Номер 271, С. 112912 - 112912

Опубликована: Янв. 29, 2022

Язык: Английский

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A quick, easy and non‐invasive method to quantify coral growth rates using photogrammetry and 3D model comparisons

Methods in Ecology and Evolution, Год журнала: 2020, Номер 11(6), С. 714 - 726

Опубликована: Март 12, 2020

Abstract Coral growth rates vary significantly with environmental conditions and are thus important indicators of coral health reef carbonate production. Despite the importance this metric, data sparse for most genera species globally, including many key reef‐building species. Traditional methods to obtain rates, such as coring or staining Alizarin destructive only work a limited number morphological forms. Emerging approaches, using underwater photogrammetry create digital models colonies, providing novel non‐invasive ways explore colony‐scale patterns address existing knowledge gaps. We developed an easy‐to‐follow workflow construct three‐dimensional (3D) from overlapping photographs measure linear, radial vertical extension branching, massive encrusting corals after aligning colony subsequent years. The method presented here was applied 46 colonies nine in remote Chagos Archipelago, Indian Ocean. Proposed image acquisition software settings produced 3D consistently high resolution detail (precision ≤ 0.2 mm) variability measurements small despite manual alignment, clipping ruler placement ( SD 0.9 mm). Measured Archipelago similar published Indo‐Pacific where comparable available, provide first several For corals, results emphasize differentiating between growth. Photogrammetry model comparisons fast, easy, inexpensive quantify range simplicity encourages its repeatability permits non‐specialists learn goal obtaining linear rates. essential metrics functional consequences ongoing community changes on reefs expanded datasets taxa will aid predictions geographic variations response increasing global stressors.

Язык: Английский

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The influence of seafloor terrain on fish and fisheries: A global synthesis

Fish and Fisheries, Год журнала: 2021, Номер 22(4), С. 707 - 734

Опубликована: Фев. 27, 2021

Abstract The structure of seafloor terrain affects the distribution and diversity animals in all seascapes. Effects on fish assemblages have been reported from most ecosystems, but it is unclear whether bathymetric effects vary among seascapes or change response to modification by humans. We reviewed global literature linking species (96 studies) determined that relief (e.g. depth), complexity roughness), feature classes substrate types) morphology curvature), widespread assemblages. Research ecological consequences focused coral reefs, rocky continental shelves deep sea ( n ≥ 20 studies), are rarely tested estuaries = 7). Fish associate with a variety attributes, variation depth aspect features reef shelf seascapes, sea. different also respond distinct metrics, fluctuations slope (coral reefs), rugosity (rocky reefs) (continental shelves, sea) each linked changes assemblage composition. Terrain simplification coastal urbanization dredging) resource extraction trawling) can reduce abundance, recover inside effective marine reserves. these for fisheries are, however, measured key challenge now examine how conservation combine alter distributions productivity across diverse

Язык: Английский

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Patchy delivery of functions undermines functional redundancy in a high diversity system

Functional Ecology, Год журнала: 2019, Номер 33(6), С. 1144 - 1155

Опубликована: Март 9, 2019

Abstract Globally, many ecosystems are being challenged and transformed by anthropogenic climate change. Future ecosystem configurations will be heavily influenced the critical ecological functions that affect resilience. Robust measures of these thus essential for understanding responding to Coral reefs experiencing unprecedented change due global mass coral bleaching. After bleaching events other disturbances, herbivorous fishes provide reef resilience controlling harmful proliferation algae. Identifying functional diversity amongst has been a mainstay fish research, but it remained unclear how, what extent, translates impacts on reefs. Rather than assessing potential community, we explicitly considered delivery herbivory quantifying, in detail, spatial extent overlap feeding areas across different groups. Core were highly concentrated consistently covered just 14% available space. Overlap groups was limited, showing high complementarity as tended feed next one another. Thus, processes patchy, effectively reducing redundancy, even presence diverse assemblage. Our findings caution against assumptions homogeneity functions. The impact local assemblages current approaches may overestimated, potentially leading skewed assessments results highlight need incorporate collective animal behaviour spatio‐temporal scales into future ultimately A plain language summary is this article.

Язык: Английский

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Habitat zonation on coral reefs: Structural complexity, nutritional resources and herbivorous fish distributions

PLoS ONE, Год журнала: 2020, Номер 15(6), С. e0233498 - e0233498

Опубликована: Июнь 4, 2020

Distinct zonation of community assemblages among habitats is a ubiquitous feature coral reefs. The distribution roving herbivorous fishes (parrotfishes, surgeonfishes and rabbitfishes) particularly clear example, with the abundance these generally peaking in shallow-water, high-energy habitats, regardless biogeographic realm. Yet, our understanding factors which structure this habitat partitioning, especially regards to different facets structural complexity nutritional resource availability, limited. To address issue, we used three-dimensional photogrammetry structure-from-motion technologies describe five components (rugosity, cover, verticality, refuge density field-of-view) availability (grazing surface area) considered how are related fish distributions. All metrics (including cover) were highest on slope crest. Nutritional differed from general pattern peaked outer-flat. Unexpectedly, when compared fishes, none had marked influence models. However, grazing area was strong predictor both biomass fishes. relationship between distributions indicates that may be one primary driving lack affinity for low-complexity, algal turf-dominated outer-flat offers some cautious optimism herbivory sustained future, reef configurations.

Язык: Английский

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3D Imaging Insights into Forests and Coral Reefs

Trends in Ecology & Evolution, Год журнала: 2019, Номер 35(1), С. 6 - 9

Опубликована: Ноя. 5, 2019

Язык: Английский

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Photogrammetry as a tool to improve ecosystem restoration

Trends in Ecology & Evolution, Год журнала: 2021, Номер 36(12), С. 1093 - 1101

Опубликована: Авг. 14, 2021

Язык: Английский

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Accounting for habitat structural complexity improves the assessment of performance in no-take marine reserves

Biological Conservation, Год журнала: 2018, Номер 224, С. 100 - 110

Опубликована: Май 31, 2018

Язык: Английский

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A 3D perspective on sediment accumulation in algal turfs: Implications of coral reef flattening

Journal of Ecology, Год журнала: 2019, Номер 108(1), С. 70 - 80

Опубликована: Июнь 29, 2019

Abstract Globally, coral reefs are being transformed by a suite of stressors, the foremost climate change. Increasingly, it is expected that these reconfigured reef systems will emerge with lower‐complexity and be dominated algal turfs. Understanding this new operating space vital if we to maintain services, such as fishable biomass production, provide. However, functionality appears depend on nature turfs themselves, which in‐turn, intimately linked sediments they contain. As losing complexity, need understand if, what extent, turf condition complex structure connected. To address issue took advantage recent developments in 3D structure‐from‐motion technology examine how complexity metrics (elevation surface angle) related heavily climate‐impacted reef. This represents novel application context ecosystems. We found both elevation angle decreased, nutritional value epilithic matrix also decreased while sediment accumulation increased. Furthermore, showed elevated surfaces were characterized far shorter turfs, potentially herbivory hotspots, offering fertile grounds for further exploration dynamics at sub‐metre spatial scales. Synthesis. study yields insights into operating‐space future reefs, suggests flatten, likely increase even inputs remain unchanged, altering fundamentally. Maintaining key services provided climate‐transformed, low‐complexity turf‐dominated future, managing interactions between herbivory, sediments, structural complexity.

Язык: Английский

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