JP068
Lake Kasumigaura, Ukisima


IBA Justification

The site was identified as internationally important for bird conservation 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 List Season (year/s of estimate) Size IBA criteria
Common Teal Anas crecca LC winter (2003) present A4i
Pacific Golden Plover Pluvialis fulva LC passage (2003) present A4i
Little Ringed Plover Charadrius dubius LC breeding (2003) present A4i
Marsh Grassbird Helopsaltes pryeri NT breeding (2003) present A1, A3
Ochre-rumped Bunting Emberiza yessoensis NT breeding (2003) present A3

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 moderate high low
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%) moderate

Pressure (threats to the trigger species and/or their habitats)
Threat Timing Scope Severity Result
Biological resource use happe­ning now some of popul­ation/area (10–49%) rapid decline (>30% over 3 gener­ations) high

Response (conservation actions taken for the trigger species and/or their habitats)
Designation Planning Action Result
Whole area (>90%) covered by appropriate conservation designation No management plan exists, but the management planning process has begun Some limited conservation initiatives are in place low

IBA Protection

Year Protected Area Designation (management category) % coverage of IBA
1956 Edozaki 都道府県指定鳥獣保護区 (IV) 2
1959 Suigo-Tsukuba 国定公園 (V) 100
1960 Ukishima 都道府県指定鳥獣保護区 (IV) <1
1962 Ushibori chisaki 都道府県指定鳥獣保護区 (IV) 6
1966 Ayumisaki 都道府県指定鳥獣保護区 (IV) 3
1972 Kasumigaura 都道府県指定鳥獣保護区 (IV) 27
1981 Takahamairi 都道府県指定鳥獣保護区 (IV) 2

Habitats

Habitat % of IBA Habitat detail
Wetlands (inland) - Freshwater lakes and pools; Permanent swamps


Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Lake Kasumigaura, Ukisima (Japan). Downloaded from https://datazone.birdlife.org/site/factsheet/lake-kasumigaura-ukisima-iba-japan on 23/12/2024.