The Michigan Historical Collections ... some impressions.

Mode of access: Internet.

Michigan historical collections.

One 40 v. set in special collections.

Michigan historical collections.

One 40 v. set in special collections.

Father Gabriel Richard's Library presented to Michigan Historical Collections

L-R: Fr. Francis X. Canfield, Monsignor Henry Donnelly, Albert Hyma, F. Clever Bald

Father Gabriel Richard's Library presented to Michigan Historical Collections

L-R: F. Clever Bald, Fr. Francis X. Canfield, Monsignor Henry Donnelly, Albert Hyma,

Father Gabriel Richard's Library presented to Michigan Historical Collections

L-R: Fr. Francis X. Canfield, Monsignor Henry Donnelly, Albert Hyma, F. Clever Bald

Historical collections /

Description based on: Vol. 15.

Historical collections.

1915-1929 pub. by Michigan Historical Commission and includes its report

Genetic bottlenecks in time and space: reconstructing invasions from contemporary and historical collections

Herbarium accession data offer a useful historical botanical perspective and have been used to track the spread of plant invasions through time and space. Nevertheless, few studies have utilised this resource for genetic analysis to reconstruct a more complete picture of historical invasion dynamics, including the occurrence of separate introduction events. In this study, we combined nuclear and chloroplast microsatellite analyses of contemporary and historical collections of Senecio madagascariensis, a globally invasive weed first introduced to Australia c. 1918 from its native South Africa. Analysis of nuclear microsatellites, together with temporal spread data and simulations of herbarium voucher sampling, revealed distinct introductions to south-eastern Australia and mid-eastern Australia. Genetic diversity of the south-eastern invasive population was lower than in the native range, but higher than in the mid-eastern invasion. In the invasive range, despite its low resolution, our chloroplast microsatellite data revealed the occurrence of new haplotypes over time, probably as the result of subsequent introduction(s) to Australia from the native range during the latter half of the 20th century. Our work demonstrates how molecular studies of contemporary and historical field collections can be combined to reconstruct a more complete picture of the invasion history of introduced taxa. Further, our study indicates that a survey of contemporary samples only (as undertaken for the majority of invasive species studies) would be insufficient to identify potential source populations and occurrence of multiple introductions.

Indiana historical collections /

Publication suspended 1982-1997.