PIF population size code

Also known as

PS-g

Population Size (PS-g) indicates a species vulnerability to extinction due to the total number of adult individuals in the global population.

Edit description

Add a type

Land Cover (spatialed) User-created view »

Classification system

0 empty fields

Descriptive quote

quotation	source
[Population size] Scores were assigned using population estimates derived primarily from abundance data collected by the North American Breeding Bird Survey (BBS), extrapolated after various adjustments to range size outside of BBS coverage; but other data on abundance were used when appropriate (Rich et al. 2004, Appendix B; Rosenberg and Blancher 2005).	The Partners in Flight Handbook on Species Assessment
detail view »

Classification publication

Classification codes

classification code	numeric identifier	text identifier
PS-g1	1.0	World breeding population ≥50,000,000
PS-g2	2.0	World breeding population <50,000,000 and ≥5,000,000
PS-g3	3.0	World breeding population <5,000,000 and ≥500,000
PS-g4	4.0	World breeding population <500,000 and ≥50,000
PS-g5	5.0	World breeding population < 50,000
detail view »

With the exception of Wikipedia summaries and some images the content on this page is typically distributed under the Creative Commons Attribution license or Public Domain.

Topic History

Created by spatialed Dec 20, 2007

Last edited by spatialed Dec 21, 2007

Gallery	add an image	edit gallery

There are no images for this topic yet.

Edit Weblinks

There are no weblinks for this topic yet.

Recent Discussions about PIF population size code

There are no conversations on this topic. Would you like to start one?

Start the Discussion

PIF population size code

More on this topic from users

Land Cover (spatialed) User-created view »

Topic History

Edit Weblinks

Recent Discussions about PIF population size code