Temperature, space availability, and species assemblages impact competition in global fouling communities

Lord, Joshua P.

doi:10.1007/s10530-016-1262-7

Cited by 23 publications

(23 citation statements)

References 47 publications

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“…As such, each panel accumulated 4 weeks of growth before it was scraped, allowing for quantification of recruitment (week 1) and growth (week 1 to week 2) and competition (weeks 3–4). Growth could be measured between weeks 1 and 2 because there was still ample available space for unimpeded growth, whereas 3‐ and 4‐week‐old panels exhibited competition, which is described in a separate paper due to the disparate goals and analysis of that aspect of the project (Lord, ). Surface seawater temperature at each site was measured directly with a digital thermometer every time photographs were taken.…”

Section: Methodsmentioning

confidence: 99%

Impact of seawater temperature on growth and recruitment of invasive fouling species at the global scale

Lord

2016

Marine Ecology

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Epibenthic fouling communities are dominated by invasive species that are globally distributed and can have substantial ecological and economic impacts in coastal habitats. Little is known about inter-specific differences in life history strategies that cosmopolitan invasive species employ to acquire space and succeed in invaded habitats.The goal of this study was to examine the impact of seawater temperature on recruitment and growth of several cosmopolitan fouling species including the tunicates Botrylloides violaceus, Botryllus schlosseri and Diplosoma listerianum, as well as the bryozoans Bugula neritina and Watersipora subtorquata. To do this, the iBARGE (Invasive Bryozoan and Ascidian Recruitment and Growth Experiment) program was developed, utilizing a global network of collaborators to examine patterns over a broad geographic scale and a wide range of naturally varying seawater temperatures. This project produced a data set of thousands of photographs from 18 marinas in five countries in summer 2014 and 2015, allowing for recruitment and growth to be tabulated at a variety of temperatures. Thermal growth curves were established for five invasive species, and growth was compared among temperatures across sites, revealing a significant thermal effect. Recruitment was linked to temperature, with generally higher recruitment at warmer seawater temperatures and the highest peak recruitment values for the bryozoan Bugula neritina. Temperature also changed the relative importance of growth and recruitment for several species. These results paint a complex picture of the interactions among invasive fouling species as they relate to seawater temperature. K E Y W O R D S bryozoan, fouling, global warming, invasive species, temperature, tunicate

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Section: Methodsmentioning

confidence: 99%

Impact of seawater temperature on growth and recruitment of invasive fouling species at the global scale

Lord

2016

Marine Ecology

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“…Future studies should analyse a larger number of specimens and combine information from morphological, ecological and life history traits with the analysis of multiple reliable molecular markers. The resolution of this matter is crucial since B. schlosseri is a model organism widely used for investigating several important processes in basal chordates, (such as regeneration, stem cells migration, apoptosis and allorecognition, etc) 3,5,6 and it is also a widespread marine invaders 9,[34][35][36] .…”

Section: Clade a Of The B Schlosseri Species Complexmentioning

confidence: 99%

“…Indeed, both nuclear and mitochondrial markers have demonstrated the weaknesses of the Botryllus schlosseri morphological taxonomy, revealing that B. schlosseri is a "species complex" consisting of five genetically highly divergent clades (named from A to E), each corresponding to a cryptic species and with a peculiar geographic distribution 9,[18][19][20]32,33 . B. schlosseri is a model organism widely used for investigating fundamental biological processes (such as regeneration, stem cells migration, apoptosis and allorecognition) 3,5,6 but it is also a cosmopolitan fouling species and a widespread marine invaders 9,[34][35][36] . Therefore, it is crucial to fully resolve its taxonomic status.…”

Section: Introductionmentioning

confidence: 99%

An elongated COI fragment to discriminate botryllid species and as an improved ascidian DNA barcode

Salonna

Gasparini

Huchon

et al. 2021

Preprint

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Botryllids are colonial ascidians widely studied for their potential invasiveness and as model organisms, however the morphological description and discrimination of these species is very problematic, leading to frequent specimen misidentifications.To facilitate species discrimination and detection of cryptic/new species, we developed new barcoding primers for the amplification of a COI fragment of about 860 bp (860-COI), which is an extension of the common Folmer’s barcode region. Our 860-COI was successfully amplified in 177 worldwide-sampled botryllid colonies. Combined with morphological analyses, 860-COI allowed not only discriminating known species, but also identifying undescribed and cryptic species, resurrecting old species currently in synonymy, and proposing the assignment of clade D of the model organism Botryllus schlosseri to Botryllus renierii. Importantly, within clade A of B. schlosseri, 860-COI recognized at least two candidate species against only one recognized by the Folmer’s fragment, underlining the need of further genetic investigations on this clade. This result also suggests that the 860-COI could have a greater ability to diagnose cryptic/new species than the Folmer’s fragment at very short evolutionary distances, such as those observed within clade A. Finally, our new primers simplify the amplification of 860-COI even in non-botryllid ascidians, suggesting their wider usefulness in ascidians.

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“…Indeed, both nuclear and mitochondrial markers have demonstrated the weaknesses of the Botryllus schlosseri morphological taxonomy, revealing that B. schlosseri is a “species complex” consisting of five genetically highly divergent clades (named from A to E), each corresponding to a cryptic species and with a peculiar geographic distribution 9 , 18 – 20 , 32 , 33 . B. schlosseri is a model organism widely used for investigating fundamental biological processes (such as regeneration, stem cells migration, apoptosis and allorecognition) 3 , 5 , 6 but it is also a cosmopolitan fouling species and a widespread marine invader 9 , 34 – 36 . Therefore, it is crucial to fully resolve its taxonomic status.…”

Section: Introductionmentioning

confidence: 99%

An elongated COI fragment to discriminate botryllid species and as an improved ascidian DNA barcode

Salonna

Gasparini

Huchon

et al. 2021

Sci Rep

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Botryllids are colonial ascidians widely studied for their potential invasiveness and as model organisms, however the morphological description and discrimination of these species is very problematic, leading to frequent specimen misidentifications. To facilitate species discrimination and detection of cryptic/new species, we developed new barcoding primers for the amplification of a COI fragment of about 860 bp (860-COI), which is an extension of the common Folmer's barcode region. Our 860-COI was successfully amplified in 177 worldwide-sampled botryllid colonies. Combined with morphological analyses, 860-COI allowed not only discriminating known species, but also identifying undescribed and cryptic species, resurrecting old species currently in synonymy, and proposing the assignment of clade D of the model organism Botryllus schlosseri to Botryllus renierii. Importantly, within clade A of B. schlosseri, 860-COI recognized at least two candidate species against only one recognized by the Folmer's fragment, underlining the need of further genetic investigations on this clade. This result also suggests that the 860-COI could have a greater ability to diagnose cryptic/new species than the Folmer's fragment at very short evolutionary distances, such as those observed within clade A. Finally, our new primers simplify the amplification of 860-COI even in non-botryllid ascidians, suggesting their wider usefulness in ascidians.

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Temperature, space availability, and species assemblages impact competition in global fouling communities

Cited by 23 publications

References 47 publications

Impact of seawater temperature on growth and recruitment of invasive fouling species at the global scale

Impact of seawater temperature on growth and recruitment of invasive fouling species at the global scale

An elongated COI fragment to discriminate botryllid species and as an improved ascidian DNA barcode

An elongated COI fragment to discriminate botryllid species and as an improved ascidian DNA barcode

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