Beaver populations

C. canadensis Native

C. canadensis Self-Reintroduced (Migrated back 1966; descendants of 1939–1950s nearby releases)

C. fiber, present in the following included parks:

• Kalkalpen National Park Austria Extensive research shows beavers are "ecosystem engineers" here, significantly boosting local biodiversity.
• Bieszczady National Park Poland Beavers have naturally expanded into these Carpathian beech forests from the San River drainage.
• Hainich National Park Germany Reintroduced populations have moved into the small streams that cut through these "primeval" lowland forests.
• Müritz National Park Germany Located in a lake-rich landscape (Serrahn component), this is a "beaver paradise."
• Uzhansky National Park Ukraine Part of the original "Primeval Beech Forests" core; beavers inhabit the headwaters of the Uzh River.

C. canadensis Native

C. canadensis Native. Isolated island population. The core zone includes the major river systems where the fossil-bearing strata are visible. These same rivers—such as the Jupiter River and the Vauréal River—are the primary habitats for the island's native beavers.

C. fiber Reintroduced to Biesbosch in 1988, from where they expanded their region also up the river and are, for example, spotted around Slot Loevestein.

C. canadensis Native (they were almost gone during the early 1900s due to hunting, but they worked their way back down again). At the lush riparian riverside habitat along the banks of the Red Deer River.

C. canadensis Native. You can spot signs of them, like felled trees, along the Milk River

C. fiber Reintroduced (to Biesbosch in 1988, spread to Kinderdijk area from there) (source)

C. canadensis Native (Natural recovery/Expansion post-1990s with reintroduced examples)

C. canadensis Native

C. canadensis Introduced (Non-native) (1977)

C. fiber Reintroduced (1930s–1950s)

C. fiber Reintroduced (Reached Heritage area 2003)

C. canadensis Native. Present in the park's major river systems - Redwood Creek, Smith and Klamath

C. canadensis Native. Abundant; vital to the Anishinaabe culture and receives numerous mentions in the nomination file in both natural and cultural contexts

C. canadensis Native

C. canadensis Native. Boreal population; expanding north into the tundra with climate change bringing ecological consequences

C. canadensis Native. Found in the Green and Nolin Rivers

C. fiber Reintroduced (1924–1926)

C. fiber Native / Expanded (Post-1950s natural spread)

C. fiber Reintroduced (1922–1939)

C. canadensis Native (Recovered mid-20th century)

C. fiber & Cc Native / Reintroduced / Introduced non-native (Started 1950s)

C. canadensis Native

C. fiber Reintroduced (Began 1998; reached Delta 2012)

C. fiber & Cc Reintroduced (Cf) / Introduced (Cc) (1950s)

C. canadensis Native

C. fiber Native (Relict) (Unbroken lineage)