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The site was identified as important in 2004 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species') at the site:

Species	Red List1	Season	Year(s)	Size	IBA criteria
Middendorff's Grasshopper-warbler Helopsaltes ochotensis	LC	breeding	2003	present	A3

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2004) may differ.

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2004. The most recent assessment (2015) is shown below.

State (condition of the trigger species' habitats)
Habitat	Quantity (% remaining)	Quality (% carrying capacity)	Result
Forest	good (> 90%)	moderate (70-90%)	near favourable

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Energy production and mining	happening now	some of area/population (10-49%)	moderate to rapid deterioration	high
Invasive and other problematic species and genes	happening now	majority/most of area/population (50-90%)	moderate to rapid deterioration	high
Pollution	happening now	some of area/population (10-49%)	moderate to rapid deterioration	high
Residential and commercial development	happening now	some of area/population (10-49%)	moderate to rapid deterioration	high
Geological events	likely in long term (beyond 4 years)	some of area/population (10-49%)	slow but significant deterioration	medium
Human intrusions and disturbance	happening now	some of area/population (10-49%)	slow but significant deterioration	medium

Response (conservation actions taken for the trigger species and/or their habitats)
Protected areas	Management plan	Other action	Result
Most of site (50-90%) covered (including the most critical parts for important bird species)	No management planning has taken place	Some limited conservation initiatives are in place	low

Year	Protected Area	Designation	% overlap with IBA
1949	Shikotsu toya	国立公園	86
1972	Horobetsu dam	都道府県指定鳥獣保護区	1
1974	Toyako	都道府県指定鳥獣保護区	6
1981	Kuttarako	都道府県指定鳥獣保護区	1
1981	Jozankei	都道府県指定鳥獣保護区	<1
1983	Shikotsuko monbetsudake	都道府県指定鳥獣保護区	<1
1984	Poroto	都道府県指定鳥獣保護区	<1
1986	Shikotsuko	都道府県指定鳥獣保護区	19
1989	Hokudai ichinosawa	都道府県指定鳥獣保護区	<1
1996	Area around Mt. Izaridake	森林生態系保護地域	3
2001	Shikotsu and Muine	緑の回廊	4

Habitat1	Habitat detail	% of IBA
Forest		-
Wetlands (inland)	Freshwater lakes and pools	-

1. IUCN Habitat classification.

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Shikotsu, Toya (Japan). Downloaded from https://datazone.birdlife.org/site/factsheet/shikotsu-toya-iba-japan on 23/11/2024.