Ranking of Important Protected Areas in BC based on importance as gene conservation reserves in the zone

In this UBC forestry  document , we have extracted the Ecological reserves from the list of Protected Forest Areas in BC . The complete listing is at:

http://www.genetics.forestry.ubc.ca/cfcg/proj_cataloguing/status_report/r_pa_rank_bwbs.html

BWBS zone

Important Protected Areas

Protected Areas are ranked based on their importance as gene conservation reserves in the zone and in BC. Ranking is based on populations sizes of 10 and 5 ha cumulative cover.

For information on methods see notes or Hamann, A., Smets, P., Aitken, S. N. and Yanchuk, A. D. 2005. An ecogeographic framework for in situ conservation of forest trees in British Columbia. Can. J. For. Res. 35:2553-2561.

PA ranking

http://www.genetics.forestry.ubc.ca/cfcg/proj_cataloguing/status_report/r_pa_rank_bwbs.html

http://www.genetics.forestry.ubc.ca/cfcg/proj_cataloguing/status_report/pa_rank_notes.html

 

Species population size estimates are from the GIS bases analysis done by Hamann et. al 2005. The Protected Area (PA) data set used was from 2002. It included approximately 800 permanent PAs, national parks, ecological reserves, provincial parks, recreation areas, all of which are free from mining, logging, oil or gas extraction, urban development and agriculture (excluding grazing). The species frequency data contains % cover values (from the BC Ministry of Forests botanical inventory database of 34,000 sample plots) for each BEC variant. Species cumulative cover (CC) estimates (a measure of population size) were calculated for each BEC variant portion of a PA and then tallied. PA importance (I) is calculated using a modified species evenness index (e.g. Shannon-index) which takes into account the number of species protected (S) and the redundancy in protection (ri):

where S is the total number of species protected in the zone at a set threshold population size, ri is the redundancy value for species i, and Ni is the number of PAs in the zone containing species i at the set threshold population size. PA importance was calculated for a threshold population size of 10 ha and 5 ha CC. It has been calculated that for common commercial conifers, 10 ha of CC will likely contain a census population size larger than 5,000 breeding individuals (Hamann et. al. 2004).

PA importance was calculated on the zone and provincial level. PAs were then ranked by their importance values. Protected Areas ranked highest are those which contain populuations of trees not protected elsewhere in the particular zone or in BC.

For more information see Hamann, A., Smets, P., Aitken, S. N. and Yanchuk, A. D. 2005. An ecogeographic framework for in situ conservation of forest trees in British Columbia. Can. J. For. Res. 35:2553-2561.

 

	zone		BC
Protected Areas	10 ha	5 ha	10 ha	5 ha	Species, estimated cumulative cover in ha

 

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Blue/Dease Rivers (ER) 36 47 246 304 Abielas 4, Alnuinc 12, Alnuvir 27, Betupap 11, Larilar 3, Picegla 72, Picemar 43, Pinucon 40, Popubal 10, Poputre 20, Salisco 5 Portage Brule Rapids (ER) 37 50 247 307 Abielas 4, Alnuinc 12, Alnuvir 26, Betupap 11, Larilar 3, Picegla 72, Picemar 43, Pinucon 40, Popubal 10, Poputre 20, Salisco 5 Smith River (ER) 38 41 204 175 Abielas 5, Alnuinc 14, Alnuvir 30, Betupap 12, Larilar 3, Picegla 82, Picemar 49, Pinucon 46, Popubal 12, Poputre 23, Salisco 6   Clayhurst (ER) 54 56 330 365 Alnuinc 4, Alnuvir 8, Picegla 26, Picemar 14, Pinucon 13, Popubal 11, Poputre 37 Chickens Neck Mountain (ER) 55 53 290 261 Abielas 9, Alnuinc 5, Alnuvir 3, Picegla 32, Picemar 19, Pinucon 22, Popubal 5, Poputre 15   Grayling River Hotsprings (ER) 46 51 210 182 Alnuinc 11, Alnuvir 6, Larilar 5, Picegla 27, Picemar 50, Pinucon 11, Popubal 13, Poputre 13, Salibeb 3   Ospika Cones 51 46 232 214 Abielas 13, Alnuinc 7, Alnuvir 5, Betupap 3, Picegla 50, Picemar 29, Pinucon 33, Popubal 8, Poputre 22 Cecil Lake (ER) na 78 na 633 Picegla 5, Poputre 6 Fort Nelson River (ER) na 66 551 560 Alnuinc 3, Picegla 7, Picemar 13, Pinucon 3, Popubal 3, Poputre 3 Charlie Cole Creek (ER) na 64 444 453 Abielas 5, Alnuinc 3, Picegla 17, Picemar 10, Pinucon 11, Popubal 3, Poputre 8 Rolla Canyon (ER) na 81 na 636 Picegla 4, Poputre 5