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Adriatic mollusks rebound after ice-age climate
Nearshore Adriatic mollusk communities of the last interglacial reassembled in the Holocene after a distinct glacial fauna, a resilient climate response now threatened by local human stressors.
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How large was the fossil dataset?
223 nearshore samples from 18 cores; 113 species and 71,282 specimens.
Source: Resilient biotic response to long-term climate change in the Adriatic Sea · DOI · quote verified
Which time slices were compared?
Last interglacial (~125–110 kyr), last late glacial (~18–12 kyr), and Holocene/current interglacial.
Source: Resilient biotic response to long-term climate change in the Adriatic Sea · DOI · quote verified
Did the two interglacial faunas match?
Yes—CIG and LIG overlapped in NMDS and fit a shared species-pool null model; glacial samples did not.
Source: Resilient biotic response to long-term climate change in the Adriatic Sea · DOI · quote verified
What species dominated both interglacials?
Lentidium mediterraneum, more than 85% of specimens in both groups.
Source: Resilient biotic response to long-term climate change in the Adriatic Sea · DOI · quote verified
How did biogeographic mix change in the glacial?
Lusitanian/Mediterranean taxa fell to 26%; cosmopolitans rose to 54%; boreal taxa to 19%.
Source: Resilient biotic response to long-term climate change in the Adriatic Sea · DOI · quote verified
How many top CIG species were also top-10 in the LIG?
Seven of the most dominant CIG species were in the LIG top 10; glacial samples shared only four with CIG.
Source: Resilient biotic response to long-term climate change in the Adriatic Sea · DOI · quote verified
Which long-term community model did the pattern match?
Resilient (shift then reassemble), not persistent or stochastic.
Source: Resilient biotic response to long-term climate change in the Adriatic Sea · DOI · quote verified
What process likely structured the glacial fauna?
Environmental filtering (species sorting by colder, fresher conditions), not community coalescence via strong interactions.
Source: Resilient biotic response to long-term climate change in the Adriatic Sea · DOI · quote verified
How were samples made comparable across climates?
Only aggrading–prograding lower-shoreface to foreshore, fluvially influenced nearshore bodies; ≥25 specimens for multivariate work.
Source: Resilient biotic response to long-term climate change in the Adriatic Sea · DOI · quote verified
Where do glacial samples sit geographically?
More than 250 km southeast of the interglacial Po-plain cores, at the last-lowstand shoreline.
Source: Resilient biotic response to long-term climate change in the Adriatic Sea · DOI · quote verified
What modern stressors do the authors say exceed this natural envelope?
Pollution, eutrophication, bottom trawling, and invasive species since at least the mid-20th century.
Source: Resilient biotic response to long-term climate change in the Adriatic Sea · DOI · quote verified
How much colder was LGM SST vs the Holocene optimum, in the cited estimate?
About 6°C lower.
Source: Resilient biotic response to long-term climate change in the Adriatic Sea · DOI · quote verified