Raccoon (Procyon lotor) is a globally introduced invasive carnivore. Although controlling feral raccoon populations is important to reduce serious threats to local ecosystems, raccoons are not under rigid population control in Europe and Japan. We examined the D-loop and nuclear microsatellite regions to identify spatially explicit and feasible management units for effective population control and further range expansion retardation. Through the identification of five mitochondrial DNA haplotypes and three nuclear genetic groups, we identified at least three independent introductions, range expansion, and subsequent genetic admixture in the Boso Peninsula. Admitting that the currently recognizable two genetic clusters can be treated as different management units, these management units will soon fuse to a single but large population to which the effective population control will no longer be applicable due to the absence of a genetic barrier between southern and northern Chiba Prefecture.

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No competing interests reported.
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Posted 07 May, 2021
On 17 Jun, 2021
On 10 Jun, 2021
Received 10 Jun, 2021
On 13 May, 2021
On 10 May, 2021
Invitations sent on 06 May, 2021
On 05 May, 2021
On 05 May, 2021
On 05 May, 2021
On 08 Apr, 2021
Posted 07 May, 2021
On 17 Jun, 2021
On 10 Jun, 2021
Received 10 Jun, 2021
On 13 May, 2021
On 10 May, 2021
Invitations sent on 06 May, 2021
On 05 May, 2021
On 05 May, 2021
On 05 May, 2021
On 08 Apr, 2021
Raccoon (Procyon lotor) is a globally introduced invasive carnivore. Although controlling feral raccoon populations is important to reduce serious threats to local ecosystems, raccoons are not under rigid population control in Europe and Japan. We examined the D-loop and nuclear microsatellite regions to identify spatially explicit and feasible management units for effective population control and further range expansion retardation. Through the identification of five mitochondrial DNA haplotypes and three nuclear genetic groups, we identified at least three independent introductions, range expansion, and subsequent genetic admixture in the Boso Peninsula. Admitting that the currently recognizable two genetic clusters can be treated as different management units, these management units will soon fuse to a single but large population to which the effective population control will no longer be applicable due to the absence of a genetic barrier between southern and northern Chiba Prefecture.

Figure 1

Figure 2

Figure 3

Figure 4
No competing interests reported.
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