Lake Hyoko (Japan) - BirdLife IBA factsheet

JP092

Lake Hyoko

Current view: Data table and detailed info

IBA Justification

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
Tundra Swan Cygnus columbianus	LC	winter	2003	present	A4i
Mallard Anas platyrhynchos	LC	winter	2003	present	A4i
Northern Pintail Anas acuta	LC	winter	2003	present	A4i
A4iii Species group - waterbirds	n/a	winter	2003	min 20,000 individuals	A4iii

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

IBA Conservation

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.

IBA conservation assessment
Year of assessment	State	Pressure	Response
2015	near favourable	high	medium
Whole site assessed?	State assessed by	Accuracy of information
no	habitat	-

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

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Pollution	happening now	majority/most of area/population (50-90%)	moderate to rapid deterioration	high

Response (conservation actions taken for the trigger species and/or their habitats)
Protected areas	Management plan	Other action	Result
Some of site covered (10-49%)	A comprehensive and appropriate management plan exists that aims to maintain or improve the populations of qualifying bird species	Substantive conservation measures are being implemented but these are not comprehensive and are limited by resources and capacity	medium

IBA Protection

Year	Protected Area	Designation	% overlap with IBA
2005	Hyoko	国指定鳥獣保護区	87
2008	Hyo-ko	Ramsar Site, Wetland of International Importance	-
2008	Hyo-ko	Ramsar Site, Wetland of International Importance	8

Habitats

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

1. IUCN Habitat classification.

Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Lake Hyoko (Japan). Downloaded from https://datazone.birdlife.org/site/factsheet/lake-hyoko-iba-japan on 23/11/2024.