Beginning in the 1870s, bison went through a complex and interconnected history of human mediated movement to propagate the North American Bison

Autor/Urheber:

Sam Stroupe, David Forgacs, Andrew Harris, James N. Derr, Brian W. Davis

Attribution:

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Shortlink:

https://dewiki.de/b/351d1b

Quelle:

Wikimedia Commons

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2006 x 1220 Pixel (332843 Bytes)

Beschreibung:

Original description: "Figure 1: This graph represents the survival and repopulation of bison by tracking the major founding lineages from wild captured bison to modern populations.The wild herds depicted represent the only populations of bison that survived the population bottleneck in the wild. The founder herds were privately owned bison that were established with bison captured from the wild. The wild and founder herds, seven in total, are the only herds that were in existence during the nadir of the population crash and represent the seven lineages of bison. The derived herds are those that were established with bison from one or more of the seven lineages. The solid arrow (direct transfer) represents direct movement of bison from one population to another, while the dashed line (indirect transfer) represents movement of bison with one or more intermediate populations between the populations depicted. This graph does not include all bison movement but is instead meant to show the contribution and influence that the founding herds have on modern populations based on documented evidence of transferring bison. This figure also identifies populations that are known to have domestic cattle introgression whether through historical documentation or modern genetic testing and the years when each population was established. The Banff National Park population is not the same as the reintroduced animals that currently reside in the park [...]." Context in the original source: "Beginning in the 1870s, bison went through a complex and interconnected history of human mediated movement to propagate the species (Fig. 1). Following the apex of the population bottleneck, most surviving bison were under private ownership, limiting the number of bison available to establish new public and private herds[...]. On selecting bison for these new populations, it was noted that after four or five generations of backcrossing, hybrids are visually indistinguishable from the non-hybridized parental species[...]. Bison derived from these privately-owned herds were also used to augment the only two remaining wild populations, Yellowstone National Park (B. b. bison) and in the Northwest Territories of Canada, now Wood Buffalo National Park ('B. b. athabascae)[...]. While much of the bison movement between populations has been thoroughly recorded, especially within public herds, there are still herds whose origins or additions are from undocumented sources[...]."

Kommentar zur Lizenz:

Lizenz:

CC BY 4.0

Credit:

Sam Stroupe, David Forgacs, Andrew Harris, James N. Derr, Brian W. Davis: "Genomic evaluation of hybridization in historic and modern North American Bison (Bison bison)", Scientific Reports, Volume 12, article number 6397, (2022), https://doi.org/10.1038/s41598-022-09828-z, Figure 1. URL of the original Figure: https://link.springer.com/article/10.1038/s41598-022-09828-z/figures/1

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