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Seasonality in coastal benthic ecosystems.
Trends in Ecology & Evolution
|October 26, 2000
Summary
Marine benthic suspension feeders in the Mediterranean exhibit summer dormancy, unlike cold temperate species. This seasonal pattern is linked to energetic constraints, offering insights into environmental controls on these vital marine organisms.
Area of Science:
- Marine Biology
- Ecology
- Oceanography
Background:
- Knowledge on marine benthic suspension feeder seasonality is historically biased towards cold temperate regions.
- Cold temperate seas typically show winter dormancy patterns in these organisms.
- Mediterranean ecosystems present distinct seasonal dynamics.
Purpose of the Study:
- To investigate and contrast seasonality in Mediterranean benthic suspension feeders with those from cold temperate seas.
- To elucidate the role of environmental factors, specifically temperature and food availability, in driving dormancy patterns.
- To disentangle the effects of temperature and food availability by leveraging contrasting environmental correlations.
Main Methods:
- Comparative analysis of seasonal dynamics in Mediterranean taxa.
- Examination of dormancy patterns (summer vs. winter).
- Assessment of correlations between temperature, food availability, and dormancy.
Main Results:
- Mediterranean benthic suspension feeders predominantly exhibit summer dormancy.
- Summer dormancy in the Mediterranean appears linked to energetic constraints.
- Unlike cold temperate seas, Mediterranean ecosystems show less positive correlation between temperature and food availability, aiding in distinguishing their effects.
Conclusions:
- Mediterranean benthic suspension feeders display unique seasonal dormancy strategies compared to cold temperate species.
- Energetic constraints are a key driver of summer dormancy in the Mediterranean.
- Mediterranean ecosystems provide a valuable natural experiment for understanding environmental controls on marine benthic suspension feeders.
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