954 resultados para Colonies in literature


Relevância:

100.00% 100.00%

Publicador:

Resumo:

Intercultural Approaches to Cities and Spaces in Literature, Film, and New Media: a review of new work by Manzanas and Benito and Lopez-Varela and Net

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Each year, millions of monarch butterflies from eastern North America migrate to overwinter in 10–13 discrete colonies located in the Oyamel forests of central Mexico. For decades efforts to track monarch migration have relied on observations and tag-recapture methods, culminating with the discovery of the wintering colonies in 1975. Monarch tag returns from Mexico, however, are few and primarily from two accessible colonies, and therefore tag-recapture techniques have not quantified natal origins or distinctiveness among monarch populations at wintering sites. Such information would be invaluable in the conservation of the monarch and its migration phenomenon since the wintering sites currently are threatened by habitat alteration. Here we show that stable hydrogen (δD) and carbon (δ13C) isotope ratios of wintering monarchs can be used to evaluate natal origins on the summer breeding range. Stable-hydrogen and carbon isotopic values of 597 wintering monarchs from 13 wintering roost sites were compared with isotopic patterns measured in individuals at natal sites across their breeding range over a single migration cycle. We determined that all monarch wintering colonies were composed of individuals originating mainly from the Midwest, United States, thereby providing evidence for a panmictic model of wintering colony composition. However, two colonies showed more northerly origins, suggesting possible priority colonies for conservation efforts.

Relevância:

100.00% 100.00%

Publicador:

Relevância:

100.00% 100.00%

Publicador:

Resumo:

p. [3]-64: A letter to the Right Honourable the Earl of Carnarvon, principal secretary of state for the colonies; p. 65-78: Report of resolutions adopted at a conference of delegates from the provinces of Canada, Nova Scotia and New Brunswick, and the colonies of Newfoundland and Prince Edward Island, held at the city of Quebec, 10th October, 1864, as the basis of a proposed confederation of those provinces and colonies

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Bibliographical references included in "Note" [p.32]

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Mode of access: Internet.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Shakespeare's men.--The literature of nature.--Selfish womanhood.--Tennyson's men.--On reading beautiful books.--A poet Chrysostom.--Recovered yesterdays.--The literature of devotion.--Once again with Elia.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Includes index.