Biodiversity & Conservation

Caves and overhangs (deep)

CR.C.Cv


Caves and overhangs (deep)
Distribution map

CR.C.Cv recorded (dark blue bullet) and expected (light blue bullet) distribution in Britain and Ireland (see below)


  • EC_Habitats

Habitat sensitivity

Physical Factors

Click factor name to view rationale Intolerance Recoverability Sensitivity Species Richness Evidence / Confidence
Substratum Loss High Very low / none Very High Major decline Moderate
Smothering Intermediate Low High Decline Moderate
Increase in suspended sediment Tolerant Not relevant Not sensitive No change Moderate
Decrease in suspended sediment Tolerant Not relevant Not sensitive No change Moderate
Desiccation Not relevant Not relevant Not relevant Not relevant Not relevant
Increase in emergence regime Not relevant Not relevant Not relevant Not relevant Not relevant
Decrease in emergence regime Not relevant Not relevant Not relevant Not relevant Not relevant
Increase in water flow rate Low Immediate Not sensitive Minor decline Low
Decrease in water flow rate Low Immediate Not sensitive No change Moderate
Increase in temperature Tolerant* Not relevant Not sensitive* No change Moderate
Decrease in temperature Low Immediate Not sensitive No change Moderate
Increase in turbidity Tolerant Not relevant Not sensitive No change Moderate
Decrease in turbidity Tolerant Not relevant Not sensitive No change Moderate
Increase in wave exposure Intermediate Low High Minor decline Moderate
Decrease in wave exposure Tolerant Not relevant Not sensitive No change Moderate
Noise Tolerant Not relevant Not sensitive No change High
Visual Presence Tolerant Not relevant Not sensitive No change High
Abrasion & physical disturbance Intermediate Low High Minor decline High
Displacement High Very low / none Very High Major decline High

Chemical Factors

Click factor name to view rationale Intolerance Recoverability Sensitivity Species Richness Evidence / Confidence
Synthetic compound contamination Insufficient information Insufficient information Insufficient information Insufficient Information Not relevant
Heavy metal contamination Insufficient information Insufficient information Insufficient information Insufficient Information Not relevant
Hydrocarbon contamination Insufficient information Insufficient information Insufficient information Insufficient Information Not relevant
Radionuclide contamination Insufficient information Insufficient information Insufficient information Insufficient Information Not relevant
Changes in nutrient levels Insufficient information Insufficient information Insufficient information Insufficient Information Not relevant
Increase in salinity Not relevant None Not relevant Not relevant Moderate
Decrease in salinity High Very low / none Very High Major decline Moderate
Changes in oxygenation Intermediate Very low / none High Major decline Low

Biological Factors

Click factor name to view rationale Intolerance Recoverability Sensitivity Species Richness Evidence / Confidence
Introduction of microbial pathogens/parasites Insufficient information Insufficient information Insufficient information Not relevant Not relevant
Introduction of non-native species Tolerant Not relevant Not sensitive No change Low
Extraction of this species Intermediate Low High Minor decline Moderate
Extraction of other species Low Low Moderate Minor decline Moderate

Species used to indicate biotope intolerance

Physical factors

Leptopsammia pruvoti
Important characterizing
Substratum LossHigh
SmotheringHigh
Increase in suspended sedimentIntermediate
Decrease in suspended sediment
DesiccationHigh
Increase in emergence regimeHigh
Decrease in emergence regime
Increase in water flow rateLow
Decrease in water flow rate
Increase in temperatureIntermediate
Decrease in temperature
Increase in turbidityTolerant
Decrease in turbidity
Increase in wave exposureIntermediate
Decrease in wave exposure
NoiseTolerant
Visual PresenceTolerant
Abrasion & physical disturbanceHigh
DisplacementHigh

Chemical factors

Leptopsammia pruvoti
Important characterizing
Synthetic compound contaminationInsufficient information
Heavy metal contaminationInsufficient information
Hydrocarbon contaminationInsufficient information
Radionuclide contaminationInsufficient information
Changes in nutrient levelsLow
Increase in salinityHigh
Decrease in salinity
Changes in oxygenationIntermediate

Biological factors

Leptopsammia pruvoti
Important characterizing
Introduction of microbial pathogens/parasitesInsufficient information
Introduction of non-native speciesInsufficient information
Extraction of this speciesNot relevant
Extraction of other speciesNot relevant

Species used to indicate biotope recoverability

Physical factors

Leptopsammia pruvoti
Important characterizing
Substratum Loss
Smothering
Increase in suspended sediment
Decrease in suspended sediment
Desiccation
Increase in emergence regime
Decrease in emergence regime
Increase in water flow rateVery high
Decrease in water flow rate
Increase in temperature
Decrease in temperature
Increase in turbidityNot relevant
Decrease in turbidity
Increase in wave exposure
Decrease in wave exposure
NoiseNot relevant
Visual PresenceNot relevant
Abrasion & physical disturbance
Displacement

Chemical factors

Leptopsammia pruvoti
Important characterizing
Synthetic compound contaminationInsufficient information
Heavy metal contaminationInsufficient information
Hydrocarbon contaminationInsufficient information
Radionuclide contaminationInsufficient information
Changes in nutrient levelsVery high
Increase in salinity
Decrease in salinity
Changes in oxygenation

Biological factors

Leptopsammia pruvoti
Important characterizing
Introduction of microbial pathogens/parasitesInsufficient information
Introduction of non-native speciesInsufficient information
Extraction of this speciesNot relevant
Extraction of other speciesNot relevant

This review can be cited as follows:

Hiscock, K. 2000. Caves and overhangs (deep). Marine Life Information Network: Biology and Sensitivity Key Information Sub-programme [on-line]. Plymouth: Marine Biological Association of the United Kingdom. [cited 20/09/2014]. Available from: <http://www.marlin.ac.uk/habitatsensitivity.php?habitatid=10&code=1997>