- Metric Name:  Functional Group Species Richness

- Data Vintage:  2023

- Unit Of Measure: Number of species



Functional groups are sets of species that share life history characteristics that

perform particular functions within an ecosystem. The six functional groups are represented and include a range of

trophic levels and ecosystem services. A primary consideration in management is to maintain conditions, adapt to

changing conditions and transition to alternate but still productive conditions over time. The maintenance of

ecosystem services is a primary concern with climate change.



Creation Method: Species list created from CWHR is divided into six functional groups based on literature. The six

functional groups include herbivores, predators, insectivores, soil aerators, seed/spore dispersers and cavity

nesters/excavators. The diversity of each functional group is first determined by the number of species for which a

given location provides high suitability reproductive habitat (as per species richness calculations). Target conditions

can be generated based on percentiles of functional group richness across all patches, so that the 90th percentile

or higher is considered in target conditions and the 10th percentile or below is considered to be in a fully departed

condition.



- Credits:  FVEG

CALFIRE, Department of Forestry and Fire Protection: 
Data disclaimer:  
The State of California and the Department of Forestry and Fire Protection make no representations or warranties regarding the accuracy of data or maps. The user will not seek to hold the State or the Department liable under any circumstances for any damages with respect to any claim by the user or any third party on account of or arising from the use of data or maps.



California Department of Fish and Wildlife CWHR version 9.0 (CDFW); 2014

California Department of Fish and Wildlife: 
Data disclaimer:  
The State makes no claims, promises, or guarantees about the accuracy, completeness, reliability, or adequacy of these data and expressly disclaims liability for errors and omissions in these data. No warranty of any kind, implied, expressed, or statutory, including but not limited to the warranties of non-infringement of third party rights, title, merchantability, fitness for a particular purpose, and freedom from computer virus, is given with respect to these data.