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Data from: Light limitation within southern New Zealand kelp forest communities
- 负责人：
- 关键词：
- Land modification;Depth distribution;Macroalgae;PAR.;biomass;In situ light;Community composition
- DOI：
- doi:10.5061/dryad.6mc8k
- 摘要：
- Light is the fundamental driver of primary productivity in the marine environment. Reduced light availability has the potential to alter the distribution, community composition, and productivity of key benthic primary producers, potentially reducing habitat and energy provision to coastal food webs. We compared the underwater light environment of macroalgal dominated shallow subtidal rocky reef habitats on a coastline modified by human activities with a coastline of forested catchments. Key metrics describing the availability of photosynthetically active radiation (PAR) were determined over 295 days and were related to macroalgal depth distribution, community composition, and standing biomass patterns, which were recorded seasonally. Light attenuation was more than twice as high in shallow subtidal zones along the modified coast. Macroalgal biomass was 2–5 times greater within forested sites, and even in shallow water (2m) a significant difference in biomass was observed. Long-term light dose provided the best explanation for differences in observed biomass between modified and forested coasts, with light availability over the study period differing by 60 and 90 mol photons m?2 at 2 and 10 metres, respectively. Higher biomass on the forested coast was driven by the presence of larger individuals rather than species diversity or density. This study suggests that commonly used metrics such as species diversity and density are not as sensitive as direct measures of biomass when detecting the effects of light limitation within macroalgal communities.
Data from: Rewriting the history of an extinction - was a population of Steller's sea cows (Hydrodamalis gigas) at St. Lawrence Island also driven to extinction?
- 负责人：
- DOI：
- doi:10.5061/dryad.vf86p
- 摘要：
- to extinction by climate change. A warming of the climate in the area may have changed the availability of kelp; alternatively or in addition, the animals may hav
GBIF Occurrence Download
- 负责人：
- DOI：
- doi:10.15468/dl.sh4whd
- 摘要：
- . 3 records from NMNH Extant Specimen Records. 308 records from SBC LTER Darwin Core Archive: Kelp Forest Reef Fish Abundance. 3 records from Australian
and a habitat-forming temperate kelp
- 负责人：
- DOI：
- doi:10.5061/dryad.n5tb2rbsh
- 摘要：
- This dataset aims to identify climate change impacts on spawning and settlement of a tropical herbivore, the sea-urchin, Tripneustes gratilla, along eastern Australia and into the Tasman Sea including Lord Howe Island. The dataset contains the trajectories of particles that represent T. gratilla larvae and their dispersal by ocean currents for each day of both a contemporary (2006-2015) and future ‘business as usual’ RCP 8.5 climate change scenario (2090-2100). T. gratilla larval dispersal under both climate scenarios is simulated using the Connectivity Modelling System (CMS). Particles are advected in CMS by 3D velocity fields produced with a state-of-the-art configuration of the Ocean Forecasting Model version 3 (OFAM3) that simulates the contemporary oceanic environment and projects it under an RCP8.5 climate change scenario. Spawning and settlement of particles within CMS are based on known biological traits of T. gratilla.
Data from: Persistent natural acidification drives major distribution shifts in marine benthic ecosystems
- 负责人：
- DOI：
- doi:10.5061/dryad.0f7s7
- 摘要：
- 8.1 to 7.9 observed in a CO2 vent system at 40 m depth leads to a dramatic shift in highly diverse and structurally complex habitats. Forests of the kelp Laminaria
Data from: Strong, nonlinear selection against fluctuating asymmetry in wild populations of a marine fish
- 负责人：
- DOI：
- doi:10.5061/dryad.2t4gv
- 摘要：
- in two wild populations of a marine fish (the kelp perch; Brachyistius frenatus). As expected, variance in signed FA in each initial sample was significantly greater tha
Data from: The genomic footprint of coastal earthquake uplift
- 负责人：
- 关键词：
- DOI：
- doi:10.5061/dryad.pg4f4qrkm
- 摘要：
- impacts of disturbance. Genome-wide analyses of three co-distributed keystone kelp taxa revealed that post-earthquake recolonization drove the evolution
Data from: Bioerosion by pit-forming, temperate-reef sea urchins: history, rates and broader implications
- 负责人：
- DOI：
- doi:10.5061/dryad.ts608
- 摘要：
- between urchin barrens and kelp bed habitats in the North Pacific is controlled by the trophic cascade of sea otters. By limiting urchin populations
Data from: Looking into the black box: simulating the role of self-fertilization and mortality in the genetic structure of Macrocystis pyrifera
- 负责人：
- DOI：
- doi:10.5061/dryad.s1b07
- 摘要：
- in Macrocystis pyrifera, the giant kelp. We found that SGS is weaker than expected in M. pyrifera, and used computer simulations to identify selfing and ea
Data from: Diet reveals links between morphology and foraging in a cryptic temperate reef fish
- 负责人：
- DOI：
- doi:10.5061/dryad.6f20s
- 摘要：
- . In a mensurative experiment carried out at six kelp-dominated sites, we observed considerable differences in diet along 400 km of the Chilean coast coincident
