<div><p><strong>Methodology:</strong></p>
<p>Marine invertebrate communities developed on PVC settlement panels (14 x 14 cm) hung on floating docks one meter below the water surface at local marinas at three coastal sites in each region. Communities developed for three or 12 months under reduced predation (in cages). Cages had a mesh size of 0.635 cm. Communities were retrieved, assessed for species richness using non-destructive methods, and assigned to control (re-caged) or exposure (no cage) treatments. Communities were re-deployed in the same location where they developed for a short-term, three-day experiment to test the impact of ambient predation on prey communities. Initial deployment of caged panels occurred in Alaska in June 2015, California in May 2016, Mexico in June 2017 and Panama in December 2015.</p>
<p> </p>
<p><strong>Sampling and analytical procedures:</strong></p>
<p>Following the assigned development period, communities were temporarily retrieved and brought back to a laboratory for assessment. Communities were then re-deployed in their original location on the same day, and cages were either removed (exposure treatment) or kept intact (controls) for the short-term three-day experiment. After three days, communities were retrieved again and brought back to a laboratory for final assessment. Initial richness (pre) was assessed using non-destructive methods and is directly comparable with final richness (post1), which was recorded using the same methods. Additional species not originally recorded were uncovered using destructive methods (post2). Species richness provided here is a comprehensive list of sessile invertebrate species observed per community, including species that were captured in point count (composition) measures and those that were not.</p></div>
<div><p>Richness of sessile marine invertebrates from coastal sites across a latitudinal gradient spanning the subarctic to the tropics. Invertebrate communities developed under low predation for three or 12 months within cages and then underwent exposure to predation or were re-caged as controls. This experiment provided an assessment of predation impact on mature communities to complement predator exclusion experiments that measured impact of predators on prey community assembly.</p></div>
Richness of marine invertebrate communities across latitude with exposure to predation
<div><p><strong>BCO-DMO Processing Notes:</strong></p>
<ul><li>Converted dates to YYYY-MM-DD format</li>
</ul></div>
862052
Richness of marine invertebrate communities across latitude with exposure to predation
2021-09-29T14:52:11-04:00
2021-09-29T14:52:11-04:00
2023-07-07T16:10:26-04:00
urn:bcodmo:dataset:862052
Richness of marine invertebrate communities across latitude with exposure to predation (Competition and Predation across Latitude)
Richness of sessile marine invertebrates from coastal sites across a latitudinal gradient spanning the subarctic to the tropics. Invertebrate communities developed under low predation for three or 12 months within cages and then underwent exposure to predation or were re-caged as controls. This experiment provided an assessment of predation impact on mature communities to complement predator exclusion experiments that measured impact of predators on prey community assembly.
false
Freestone, A. L., Torchin, M. E., Bonfim, M., Jurgens, L. J., López, D. P., Repetto, M. F., Schlöder, C., Ruiz, G. E. (2022) Richness of marine invertebrate communities across latitude with exposure to predation (Competition and Predation across Latitude). Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2021-09-29 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.862052.1 [access date]
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10.26008/1912/bco-dmo.862052.1
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2021-08-30
marine invertebrate
predation
latitude
Marine invasion
fish
2021-09-29
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