Responses of Cryptofaunal Species Richness and Trophic Potential to Coral Reef Habitat Degradation
Coral reefs are declining worldwide as a result of many anthropogenic disturbances. This trend is alarming because coral reefs are hotspots of marine biodiversity and considered the ‘rainforests of the sea. As in the rainforest, much of the diversity on a coral reef is cryptic, remaining hidden amon...
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| Format: | Article |
| Language: | English |
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MDPI AG
2012-02-01
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| Series: | Diversity |
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| Online Access: | http://www.mdpi.com/1424-2818/4/1/94/ |
| _version_ | 1811185027029925888 |
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| author | Derek P. Manzello Ian C. Enochs |
| author_facet | Derek P. Manzello Ian C. Enochs |
| author_sort | Derek P. Manzello |
| collection | DOAJ |
| description | Coral reefs are declining worldwide as a result of many anthropogenic disturbances. This trend is alarming because coral reefs are hotspots of marine biodiversity and considered the ‘rainforests of the sea. As in the rainforest, much of the diversity on a coral reef is cryptic, remaining hidden among the cracks and crevices of structural taxa. Although the cryptofauna make up the majority of a reef’s metazoan biodiversity, we know little about their basic ecology or how these communities respond to reef degradation. Emerging research shows that the species richness of the motile cryptofauna is higher among dead (framework) vs. live coral substrates and, surprisingly, increases within successively more eroded reef framework structures, ultimately reaching a maximum in dead coral rubble. Consequently, the paradigm that abundant live coral is the apex of reef diversity needs to be clarified. This provides guarded optimism amidst alarming reports of declines in live coral cover and the impending doom of coral reefs, as motile cryptic biodiversity should persist independent of live coral cover. Granted, the maintenance of this high species richness is contingent on the presence of reef rubble, which will eventually be lost due to physical, chemical, and biological erosion if not replenished by live coral calcification and mortality. The trophic potential of a reef, as inferred from the abundance of cryptic organisms, is highest on live coral. Among dead framework substrates, however, the density of cryptofauna reaches a peak at intermediate levels of degradation. In summary, the response of the motile cryptofauna, and thus a large fraction of the reef’s biodiversity, to reef degradation is more complex and nuanced than currently thought; such that species richness may be less sensitive than overall trophic function. |
| first_indexed | 2024-04-11T13:23:26Z |
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| institution | Directory Open Access Journal |
| issn | 1424-2818 |
| language | English |
| last_indexed | 2024-04-11T13:23:26Z |
| publishDate | 2012-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Diversity |
| spelling | doaj.art-5ab78b7f301e41c2b9c8f94bf037bd0d2022-12-22T04:22:09ZengMDPI AGDiversity1424-28182012-02-01419410410.3390/d4010094Responses of Cryptofaunal Species Richness and Trophic Potential to Coral Reef Habitat DegradationDerek P. ManzelloIan C. EnochsCoral reefs are declining worldwide as a result of many anthropogenic disturbances. This trend is alarming because coral reefs are hotspots of marine biodiversity and considered the ‘rainforests of the sea. As in the rainforest, much of the diversity on a coral reef is cryptic, remaining hidden among the cracks and crevices of structural taxa. Although the cryptofauna make up the majority of a reef’s metazoan biodiversity, we know little about their basic ecology or how these communities respond to reef degradation. Emerging research shows that the species richness of the motile cryptofauna is higher among dead (framework) vs. live coral substrates and, surprisingly, increases within successively more eroded reef framework structures, ultimately reaching a maximum in dead coral rubble. Consequently, the paradigm that abundant live coral is the apex of reef diversity needs to be clarified. This provides guarded optimism amidst alarming reports of declines in live coral cover and the impending doom of coral reefs, as motile cryptic biodiversity should persist independent of live coral cover. Granted, the maintenance of this high species richness is contingent on the presence of reef rubble, which will eventually be lost due to physical, chemical, and biological erosion if not replenished by live coral calcification and mortality. The trophic potential of a reef, as inferred from the abundance of cryptic organisms, is highest on live coral. Among dead framework substrates, however, the density of cryptofauna reaches a peak at intermediate levels of degradation. In summary, the response of the motile cryptofauna, and thus a large fraction of the reef’s biodiversity, to reef degradation is more complex and nuanced than currently thought; such that species richness may be less sensitive than overall trophic function.http://www.mdpi.com/1424-2818/4/1/94/biodiversityreef framework structurerainforest’s of the searubble |
| spellingShingle | Derek P. Manzello Ian C. Enochs Responses of Cryptofaunal Species Richness and Trophic Potential to Coral Reef Habitat Degradation Diversity biodiversity reef framework structure rainforest’s of the sea rubble |
| title | Responses of Cryptofaunal Species Richness and Trophic Potential to Coral Reef Habitat Degradation |
| title_full | Responses of Cryptofaunal Species Richness and Trophic Potential to Coral Reef Habitat Degradation |
| title_fullStr | Responses of Cryptofaunal Species Richness and Trophic Potential to Coral Reef Habitat Degradation |
| title_full_unstemmed | Responses of Cryptofaunal Species Richness and Trophic Potential to Coral Reef Habitat Degradation |
| title_short | Responses of Cryptofaunal Species Richness and Trophic Potential to Coral Reef Habitat Degradation |
| title_sort | responses of cryptofaunal species richness and trophic potential to coral reef habitat degradation |
| topic | biodiversity reef framework structure rainforest’s of the sea rubble |
| url | http://www.mdpi.com/1424-2818/4/1/94/ |
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