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Tzetlin, Alexander B.; Mokievsky, Vadim; Melnikov, A. N.; Saphonov, Michail V.; Simdyanov, Timur G.; Иванов, И. Э.

doi:10.1023/a:1003098616811

Cited by 18 publications

(1 citation statement)

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“…Algal cover can remain abundant below 200 m in tropical waters [66], and nursery habitats dominated by algae can potentially extend down to the limit of the photic zone. A diverse fauna associated with detached algae has also been discovered in a deeper benthic community in an open shoreline environment, demonstrating that algae play an important role in the recruitment of marine invertebrates even after algal death and transport [67]. Even though macrophytes are crucial to the organization and diversity of modern marine shallow communities [61], the origin and evolutionary significance of nursery areas have never been assessed.…”

Section: Discussionmentioning

confidence: 99%

Demecology in the Cambrian: synchronized molting in arthropods from the Burgess Shale

Haug¹,

Caron

Haug³

2013

BMC Biol

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BackgroundThe Burgess Shale is well known for its preservation of a diverse soft-bodied biota dating from the Cambrian period (Series 3, Stage 5). While previous paleoecological studies have focused on particular species (autecology) or entire paleocommunities (synecology), studies on the ecology of populations (demecology) of Burgess Shale organisms have remained mainly anecdotal.ResultsHere, we present evidence for mass molting events in two unrelated arthropods from the Burgess Shale Walcott Quarry, Canadaspis perfecta and a megacheiran referred to as Alalcomenaeus sp.ConclusionsThese findings suggest that the triggers for such supposed synchronized molting appeared early on during the Cambrian radiation, and synchronized molting in the Cambrian may have had similar functions in the past as it does today. In addition, the finding of numerous juvenile Alalcomenaeus sp. molts associated with the putative alga Dictyophycus suggests a possible nursery habitat. In this nursery habitat a population of this animal might have found a more protected environment in which to spend critical developmental phases, as do many modern species today.

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Section: Discussionmentioning

confidence: 99%

Demecology in the Cambrian: synchronized molting in arthropods from the Burgess Shale

Haug¹,

Caron

Haug³

2013

BMC Biol

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Evolution and Ecology of Ophryotrocha (Dorvilleidae, Eunicida)

Thornhill

Dahlgren

Halanych

2009

Annelids in Modern Biology

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Examining the production, export, and immediate fate of kelp detritus on open‐coast subtidal reefs in the Northeast Atlantic

Smale

Pessarrodona

King

et al. 2021

Limnology & Oceanography

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Kelp forests are highly productive coastal habitats and are emerging as important sources of organic matter for other ecosystems. Although their high rates of productivity and detritus release are expected to lead to substantial export of carbon, few studies have actually quantified rates of export or the persistence of detritus. We addressed this in eight subtidal kelp forests (Laminaria hyperborea) spanning the length (9 of latitude) of the United Kingdom. Specifically, we quantified detritus production, retention/export from source and adjacent habitats, and in situ decomposition rates. Detritus released via both dislodgment of whole plants and "May cast" shedding of old growth was highly variable between sites with greatest values recorded in our colder, northern sites. This was attributable to greater plant size biomass in northern regions, rather than plant density or dislodgement rates. On average, the annual production of kelp detritus was 4706 AE 700 g FW m À2 yr À1 or 301 g C m À2 yr À1 . Low retention of detritus within the kelp forest and adjacent sedimentary habitats indicated very high rates of export (> 98% across the study). A litterbag experiment showed detritus may take > 4 months to decompose, suggesting great potential for long distance transport. Overall, our findings suggest that L. hyperborea forests export large amounts of detritus subsidies across their range, which can potentially shape the structure of distant benthic communities and constitute a relevant and largely overlooked flux in the coastal carbon cycle, which may represent an important component of natural carbon sequestration.

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Cited by 18 publications

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Demecology in the Cambrian: synchronized molting in arthropods from the Burgess Shale

Demecology in the Cambrian: synchronized molting in arthropods from the Burgess Shale

Evolution and Ecology of Ophryotrocha (Dorvilleidae, Eunicida)

Examining the production, export, and immediate fate of kelp detritus on open‐coast subtidal reefs in the Northeast Atlantic

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