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Aim The niche is a fundamental concept in theoretical and experimental ecology and is used to describe a wide range of ecological processes from species' interactions with the environment to community assemblies. A common way to represent the niche is through a multidimensional geometry known as the Hutchinsonian niche hypervolume. Ecological theory predicts that niche hypervolumes have properties such as holes with broader ec...
The acoustics of bulge rise and rupture at Strokkur geyserNARA Subscribed
Geysers are natural geothermal features that episodically erupt hot water and steam due to the buildup and release of subsurface vapor bubbles. At Strokkur geyser, Iceland, eruptions begin with the growth of a surface bulge caused by rising bubble clusters, followed by gradual rupture and disintegration into a water fountain. In this study, we investigate the high-resolution acoustic and visual signatures of this initial phase...
Native Trees of the Mediterranean Region: Distribution, Diversity and Conservation ChallengesNARA Subscribed
Purpose of Review While 38% of tree species are at risk of extinction worldwide, their inventory and occurrence at ecologically and biogeographically meaningful scales is lacking in many parts of the world, including the biodiversity-rich Mediterranean region. Here, we provide presence/absence, extinction risk, biogeography and genetic diversity data of trees in 39 climatically and ecologically Mediterranean territories (so-ca...
Motivation Here, we make available a second version of the BioTIME database, which compiles records of abundance estimates for species in sample events of ecological assemblages through time. The updated version expands version 1.0 of the database by doubling the number of studies and includes substantial additional curation to the taxonomic accuracy of the records, as well as the metadata. Moreover, we now provide an R packag...
Eddy dipole differentially influences particle‐associated and water column protistan community compositionNARA Subscribed
Ocean eddies are mesoscale features that can extend > 100 km and maintain cohesiveness for months, impacting planktonic community structure and water column biogeochemical cycles. Standing stocks of protists in the water column and on sinking particles were investigated using microscopy, in situ imagery, and metabarcoding across an anticyclonic to cyclonic eddy dipole in the North Pacific Subtropical Gyre during July 2017. The...
Protistan community composition and metabolism in the North Pacific Subtropical Gyre: Influences of mesoscale eddies and depthNARA Subscribed
Marine protists and their metabolic activities are intricately tied to the cycling of nutrients and the flow of energy through microbial food webs. Physiochemical changes in the environment, such as those that result from mesoscale eddies, may impact protistan communities, but the effects that such changes have on protists are poorly known. A metatranscriptomic study was conducted to investigate how eddies affected protists at...
The Ontology of Biological Attributes (OBA)—computational traits for the life sciencesNARA Subscribed
Existing phenotype ontologies were originally developed to represent phenotypes that manifest as a character state in relation to a wild-type or other reference. However, these do not include the phenotypic trait or attribute categories required for the annotation of genome-wide association studies (GWAS), Quantitative Trait Loci (QTL) mappings or any population-focussed measurable trait data. The integration of trait and biol...
Daily dynamics of contrasting spring algal blooms in Santa Monica Bay (central Southern California Bight)NARA Subscribed
Protistan algae (phytoplankton) dominate coastal upwelling ecosystems where they form massive blooms that support the world's most important fisheries and constitute an important sink for atmospheric CO 2 . Bloom initiation is well understood, but the biotic and abiotic forces that shape short‐term dynamics in community composition are still poorly characterized. Here, high‐frequency (daily) changes in relative abundance dynam...
Sampling bias misrepresents the biogeographical significance of constitutive mixotrophs across global oceansNARA Subscribed
Aim Most protist plankton are mixotrophic, with potential to engage in photoautotrophy and phagotrophy; however, the ecology of these organisms has been misdiagnosed for over a century. A large proportion of these organisms are constitutive mixotrophs (CMs), with an innate ability to photosynthesize. Here, for the first time, an analysis is presented of the biogeography of CMs across the oceans. Location Global marine ecosyste...
Shifting metabolic priorities among key protistan taxa within and below the euphotic zoneNARA Subscribed
Summary A metatranscriptome study targeting the protistan community was conducted off the coast of Southern California, at the San Pedro Ocean Time‐series station at the surface, 150 m (oxycline), and 890 m to link putative metabolic patterns to distinct protistan lineages. Comparison of relative transcript abundances revealed depth‐related shifts in the nutritional modes of key taxonomic groups. Eukaryotic gene expression in...
An observational study was performed in the central Southern California Bight in Spring 2010 to understand the relationship between seasonal spring phytoplankton blooms and coastal processes that included nutrient input from upwelling, wastewater effluent plumes, and other processes. Multi‐month Webb Slocum glider deployments combined with MBARI environmental sample processors (ESPs), weekly pier sampling, and ocean color data...
Anthropogenic nutrient sources rival natural sources on small scales in the coastal waters of the Southern California BightNARA Subscribed
Anthropogenic nutrients have been shown to provide significant sources of nitrogen (N) that have been linked to increased primary production and harmful algal blooms worldwide. There is a general perception that in upwelling regions, the flux of anthropogenic nutrient inputs is small relative to upwelling flux, and therefore anthropogenic inputs have relatively little effect on the productivity of coastal waters. To test the h...
Summary High‐throughput pyrosequencing of SSU rDNA genes was used to obtain monthly snapshots of eukaryotic and bacterial diversity and community structure at two locations in L ake T exoma, a low salinity lake in the south central U nited S tates, over 1 year. The lake experienced two disturbance events (i) a localized bloom of P rymnesium parvum restricted to one of the locations that lasted from J anuary to A pril, and (ii)...