Peerj
 2016
DOI: 10.7717/peerj.2444
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Genetic signatures of ecological diversity along an urbanization gradient

Ryan P. Kelly
1
,
James L. O’Donnell
2
,
Natalie Lowell
3
et al.

Abstract: Despite decades of work in environmental science and ecology, estimating human influences on ecosystems remains challenging. This is partly due to complex chains of causation among ecosystem elements, exacerbated by the difficulty of collecting biological data at sufficient spatial, temporal, and taxonomic scales. Here, we demonstrate the utility of environmental DNA (eDNA) for quantifying associations between human land use and changes in an adjacent ecosystem. We analyze metazoan eDNA sequences from water sa… Show more

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Cited by 91 publications

(74 citation statements)
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“…The large number of ASVs detected indicates that the studied marine community contains vast biodiversity. This is consistent with other studies using degenerate COI primers, which found a large number of ASVs / operational taxonomic units in their study systems (Djurhuus et al, 2020; Kelly et al, ,2016,2018). After removal of the organisms from the 50‐litre aquarium, much of the eDNA for the species present at the outset remained detectable for 24 hours before falling to a relatively stable state.…”
Section: Resultssupporting
confidence: 92%
“…Out of the recorded 15 metazoan species used to assemble the known marine community, 11 were detected and one was detected with a genus-level taxonomic assignment in the eDNA data (Supplementary Table S1). The number of reads per sample, reads per negative control and observed ASV richness was in line with previous COI eDNA metabarcoding studies of seawater (Holman et al, 2019;Jeunen et al, 2019;Kelly et al, 2016).…”
Section: Sequencing Results and Asv Generationsupporting
confidence: 90%
See 1 more Smart Citation
Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.
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“…The large number of ASVs detected indicates that the studied marine community contains vast biodiversity. This is consistent with other studies using degenerate COI primers, which found a large number of ASVs / operational taxonomic units in their study systems (Djurhuus et al, 2020; Kelly et al, ,2016,2018). After removal of the organisms from the 50‐litre aquarium, much of the eDNA for the species present at the outset remained detectable for 24 hours before falling to a relatively stable state.…”
Section: Resultssupporting
confidence: 92%
“…Out of the recorded 15 metazoan species used to assemble the known marine community, 11 were detected and one was detected with a genus-level taxonomic assignment in the eDNA data (Supplementary Table S1). The number of reads per sample, reads per negative control and observed ASV richness was in line with previous COI eDNA metabarcoding studies of seawater (Holman et al, 2019;Jeunen et al, 2019;Kelly et al, 2016).…”
Section: Sequencing Results and Asv Generationsupporting
confidence: 90%
Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.
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“…Our results also suggest that eDNA is a powerful tool for uncovering such human-ecosystem interactions that might otherwise remain hidden (Kelly et al, 2016). eDNA may contribute to provide quasi-exhaustive lists of species (Dalongeville et al, 2022), including early life stages that are difficult to observe.…”
Section: Discussionmentioning
confidence: 65%
“…Seaports could be submitted to high stress like noise and chemical pollution (Todd et al, 2019) inappropriate for some species. These lower β-diversity and higher species richness levels along an urbanized gradient, already observed in seagrass beds (Kelly et al, 2016) and seagrass fish communities (Iacarella et al, 2018), suggest an homogenization of fish biodiversity with coastal artificialization. Artificial structures indeed establish redundant habitats worldwide making them poor substitutes for natural habitats (Airoldi et al, 2021;Momota & Hosokawa, 2021).…”
Section: Discussionmentioning
confidence: 69%
Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.
show abstract
“…While the monitoring method used will also depend on the primary biodiversity question at hand, it has been shown, not only in this study, that combining visual monitoring with eDNA metabarcoding provides much greater taxonomic richness than a single method alone (Everett & Park, 2018;Kelly et al, 2016;Stat et al, 2019). Furthermore, eDNA metabarcoding also shows potential for tracking changes in coral cover as well as general shifts in community composition under oceanographic conditions or highly variable anthropogenic pressures (DiBattista et al, 2020(DiBattista et al, , 2022Kelly et al, 2016;Nichols & Marko, 2019).…”
Section: Con Clus Ionmentioning
confidence: 75%
Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.
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