Summer rainfall variability in European Mediterranean mountains from the sixteenth to the twentieth century reconstructed from tree rings.

En este trabajo se utilizan dendrocronologías para reconstruir la precipitación estival.

Summer rainfall variability in European Mediterranean mountains from the sixteenth to the twentieth century reconstructed from tree rings.

Estudio dendrocronológico de estructuras arbóreas en alta montaña mediterránea.

Peasant of the mountains of sacra [Material gráfico]

Resumen: Descripción: habitante de la montaña de Sacros de cuerpo entero y de pie. Lleva bastón y gorro

Can small horticulture crops improve family farm incomes in mountains areas of Central America?

Small family farm in mountain areas can found in horticulture one alternative to increase incomes. Horticulture crop required more labour and increased the land intensification. Market of production will be the key factor in the future of this family farms.

Chloroplast DNA variation and the recent radiation of the giant senecios (Asteraceae) on the tall mountains of eastern Africa.

Chloroplast DNA restriction-site variation was surveyed among 40 accessions representing all 11 species of giant senecios (Dendrosenecio, Asteraceae) at all but one known location, plus three outgroup species. Remarkably little variation (only 9 variable sites out of roughly 1000 sites examined) was found among the 40 giant senecio accessions, yet as a group they differ significantly (at 18 sites) from Cineraria deltoidea, the closest known relative. This pattern indicates that the giant senecios underwent a recent dramatic radiation in eastern Africa and evolved from a relatively isolated lineage within the Senecioneae. Biogeographic interpretation of the molecular phylogeny suggests that the giant senecios originated high on Mt. Kilimanjaro, with subsequent dispersion to the Aberdares, Mt. Kenya, and the Cherangani Hills, followed by dispersion westward to the Ruwenzori Mountains, and then south to the Virunga Mountains, Mt. Kahuzi, and Mt. Muhi, but with dispersion back to Mt. Elgon. Geographic radiation was an important antecedent to the diversification in eastern Africa, which primarily involved repeated altitudinal radiation, both up and down the mountains, leading to morphological parallelism in both directions. In general, the plants on a given mountain are more closely related to each other than they are to plants on other mountains, and plants on nearby mountains are more closely related to each other than they are to plants on more distant mountains. The individual steps of the geographic radiation have occurred at various altitudes, some clearly the result of intermountain dispersal. The molecular evidence suggests that two species are extant ancestors to other species on the same or nearby mountains.

A comparative study of the herpetological faunae of the Uluguru and Usambara mountains, Tanganyika territory with descriptions of new species / by T. Barbour and A. Loveridge.

v.50:no.2 (1928)

Railway map of routes to the White Mountains, New Hampshire 1859 (Raster Image)

This layer is a georeferenced raster image of the historic paper map entitled: Railway map of routes to the White Mountains, by Harvey Boardman. It was published in 1859 by J.H. Bufford's Lith. Scale not given. Covers New Hampshire, Vermont, Massachusetts, Connecticut, Rhode Island, and portions of Maine, New York, and the province of Quebec, Canada. The image inside the map neatline is georeferenced to the surface of the earth and fit to the USA Contiguous Albers Equal Area Conic projection (Meters). All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, or other information associated with the principal map. This map shows features such as roads, railroads, railroad stations, drainage, selected cities, towns, villages, and points of interest (hotels, houses, etc.), state boundaries, and more. Relief shown by hachures. Includes text on routes in margins. This layer is part of a selection of digitally scanned and georeferenced historic maps of New England from the Harvard Map Collection. These maps typically portray both natural and manmade features. The selection represents a range of regions, originators, ground condition dates, scales, and purposes.

Adirondack Mountains Region, New York, 1876 (Raster Image)

This layer is a georeferenced raster image of the historic paper map entitled: Map of the New York wilderness : to accompany Wallace's Descriptive guide to the Adirondacks, by W. W. Ely. It was published by G. W. & C. B. Colton & Co. in 1876. Scale [1:253,440]. Covers the Adirondack Mountains Region including portions of St. Lawrence, Franklin, Clinton, Lewis, Herkimer, Hamilton, Essex, Oneida, Warren, and Saratoga Counties. The image inside the map neatline is georeferenced to the surface of the earth and fit to the Universal Transverse Mercator (UTM) Zone 18N NAD83 projection. All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, index maps, legends, or other information associated with the principal map. This map shows features such as roads, railroads, hotels, and township and county boundaries and more. Relief is shown by hachures and spot heights. Includes inset: [Northeastern states]. This layer is part of a selection of digitally scanned and georeferenced historic maps from The Harvard Map Collection as part of the Imaging the Urban Environment project. Maps selected for this project represent major urban areas and cities of the world, at various time periods. These maps typically portray both natural and manmade features at a large scale. The selection represents a range of regions, originators, ground condition dates, scales, and purposes.

Roads, Catskill Mountains, New York, 1892 (Raster Image)

This layer is a georeferenced raster image of the historic paper map entitled: Van Loan's road map of the Catskills and vicinity : all of Greene County, most of Ulster and Delaware counties, and large portions of Albany, Schoharie, Otsego, and Sullivan counties. It was published by Walton Van Loan in 1892. Scale [1:221,760]. The image inside the map neatline is georeferenced to the surface of the earth and fit to the Universal Transverse Mercator (UTM) Zone 18N NAD83 projection. All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, index maps, legends, or other information associated with the principal map. This map shows features such as roads (with distances), railroads, drainage, township and county boundaries, post offices, and more. Relief is shown by hachures and spot heights. This layer is part of a selection of digitally scanned and georeferenced historic maps from The Harvard Map Collection as part of the Imaging the Urban Environment project. Maps selected for this project represent major urban areas and cities of the world, at various time periods. These maps typically portray both natural and manmade features at a large scale. The selection represents a range of regions, originators, ground condition dates, scales, and purposes.