Continental stewardship species

Similar topics in Freebase

• Continental concern species

  Continental Concern species. Species must meet all of the following criteria in order to rank as Continental Concern within a given BCR: a. Listed on Watch List in PIF North American Landbird Plan (Rich et al. 2004)b. Occur regularly in significant numbers in the BCR, i.e. RD ...

• Regional stewardship species

  Regional Stewardship species (Y=yes, blank=no). Species must meet all criteria in the season(s) for which it is listed in order to rank as Regional Stewardship species within a given BCR: a. Regional Combined Score > 13b. High importance of the BCR to the species; Pct_POP ≥ 25...

• PT-c3

  (Highly variable OR Unknown) over 30 yrs OR (N/A) equivalent % annual change OR "Uncertain population trend"

• TB-c3

  Slight to moderate decline in the future suitability of breeding conditions is expected.

• BD-g2

  Breeding distribution ≥ 2,000,000 and < 4,000,000 km2, or > 5,000 to ≤ 8,000 km of coast

• Regional concern species

  RC: Regional Concern species (Y=yes, blank=no).  Species must meet all of the following criteria in the season(s) for which it is listed in order to rank as Regional Concern species within a given BCR: a. Regional Combined Score > 13 B. High Regional Threats (> 3) or...

• BD-g4

  Breeding distribution ≥ 500,000 and < 1,000,000 km2, or ≤ 1,600 km of coast

• PS-g5

  World breeding population < 50,000

• TN-r2

  Expected future conditions for non-breeding populations are expected to remain stable; no known threats.

• PIF Continental Watch List for North America in 2004

  Continental Watch List Species are those with a Continental Combined Score (CCS) of ≥ 14, or of 13 in combination with PT-c = 5. These species are most vulnerable at the continental scale, due to a combination of small and declining populations, limited distributions, and ...