Geologisk Nordamerika

Nordamerikas natur

Natur, klima. Biodiversitet. Fauna og flora: Fisk. Fugle. Koralrev. Vådområder.
Nature, climate. Flora and fauna: Botanical gardens. Fish. Birds. Coral reefs. Wetlands
Flore et faune: Poissons. Oiseaux. Les récifs coralliens. Les zones humides.
Flora y fauna: Fish. Pájaros. Los arrecifes de coral. Los humedales.
Natur, Klima. Flora und Fauna: Botanische Gärten. Fisch. Vögeln. Korallenriffe. Feuchtgebiet, Feuchtbiotop.
Check-list of North American birds : the species of birds of North America from the Arctic through Panama, including the West Indies and Hawaiian Islands. / : The Committee on Classification and Nomenclature of the American Ornithologists' Union 1983.
- https://archive.org/details/checklistofnorth1983amer
North American Important Bird Areas: A Directory of 150 Key Conservation Sites. / : Commission for Environmental Cooperation, 1999.
- http://www3.cec.org/islandora/en/item/1664-north-american-important-bird-areas-directory-150-key- conservation-sites-en.pdf
Nordamerikansk natur i international lovgivning, folkeret / North American nature in international law
International Network of Basin Organizations / Det internationale netværk af flodbassin organisationer.
- http://www.inbo-news.org/spip.php?sommaire&lang=en:
The Transboundary Freshwater Dispute Database, 2002.
Atlas of International Freshwater Agreements: North America.
Oregon State University. United Nations Environment Programme.
- http://transboundarywater.geo.orst.edu/publications/atlas/
The Peace Palace Library: Bibliography on Water Resources and International Law.
Treaty Between The United States and Great Britain Relating to Boundary Waters, and Questions Arising Between the United States and Canada (1909 Boundary Waters Treaty)
Naturhistorie: Ornithological bibliography. / : Elliott Coues.
- https://archive.org/details/ornithologicalbi23coue
List of fauna publications relating to North American bibliography. 1878. (From Miscellaneous publications of the U.S. Geological Survey, no. 11) -- Second installment of American ornithological bibliography. (From Bulletin of the U.S. Geological and Geographical Survey, v. 5, no. 2) -- Third installment of American ornithological bibliography. 1880. (From Bulletin of the U.S. Geological & Geographical Survey of the Territories, v. 5, no. 4) -- Fourth installment of ornithological bibliography. 1880. (From Proceedings of the United States National Museum, v. 2 (1879))
Geologi og jordbundsforhold: Bjerge, vulkaner, jordskælv og ørkenområder:
Geology: Mountains, volcanoes, earthquakes and desert areas
Géologie: Montagnes, volcans, tremblements de terre et les zones désertiques
Geología: Montañas, volcanes, terremotos y zonas desérticas
Geologie: Berge, Vulkane, Erdbeben und Wüstengebiete
Geologihistorie: Lake Agassiz: About 12,000 years ago, the glaciers melted back to the topographic divide (near the North Dakota/South Dakota border). Glacial meltwater was trapped and accumulated, creating Lake Agassiz.
Ørkenområder: Chihuahuan Desert.
The Otero Mesa
- https://archive.org/details/otero_mesa
The Chihuahuan Desert extends southward from New Mexico, Texas and Arizona into the Mexican Plateau. It covers an area of 250,000 square miles and is considered to be among the most biologically rich and diverse desert eco-regions in the world. The area is home to Pronghorn Antelope, migratory songbirds and independent cattle ranches that have been in operation for generations.
Despite local outrage and a 2005 law suit filed by New Mexico's governor against the Bush administration, the Bureau of Land Management has made the decision to nearly double the acreage available for oil and gas development on Otero Mesa. If it is turned into a full-scale oil and gas field, the Wilderness and much of the wildlife that live there will be threatened by groundwater pollution. Current drilling requires the use of a number of chemical agents (many of which are suspected carcinogens) that are used the entire length of a drilling process.
Plant dieback under exceptional drought driven by elevation, not by plant traits, in Big Bend National Park, Texas, USA. by Waring, Elizabeth F.; Schwilk, Dylan W., 2014 PeerJ, volume 2.
- https://archive.org/details/pubmed-PMC4106195
In 2011, Big Bend National Park, Texas, USA, experienced the most severe single year drought in its recorded history, resulting in significant plant mortality. We used this event to test how perennial plant response to drought varied across elevation, plant growth form and leaf traits. In October 2010 and October 2011, we measured plant cover by species at six evenly-spaced elevations ranging from Chihuahuan desert (666 m) to oak forest in the Chisos mountains (1,920 m). We asked the following questions: what was the relationship between elevation and stem dieback and did susceptibility to drought differ among functional groups or by leaf traits? In 2010, pre-drought, we measured leaf mass per area (LMA) on each species. In 2011, the percent of canopy dieback for each individual was visually estimated. Living canopy cover decreased significantly after the drought of 2011 and dieback decreased with elevation. There was no relationship between LMA and dieback within elevations. The negative relationship between proportional dieback and elevation was consistent in shrub and succulent species, which were the most common growth forms across elevations, indicating that dieback was largely driven by elevation and not by species traits. Growth form turnover did not influence canopy dieback; differences in canopy cover and proportional dieback among elevations were driven primarily by differences in drought severity. These results indicate that the 2011 drought in Big Bend National Park had a large effect on communities at all elevations with average dieback for all woody plants ranging from 8% dieback at the highest elevation to 83% dieback at lowest elevations.
Transactions of the Symposium on the Biological Resources of the Chihuahuan Desert Region, United States and Mexico by Wauer, Roland; Riskind, David. 1977
- https://archive.org/details/transactionsofsy00waue
World Database on Protected Areas: Beskyttede områder og nationalparker.
UNEP-WCMC (2008). National and Regional Networks of Marine Protected Areas: A Review of Progress. Cambridge.
- http://www.unep.org/regionalseas/publications/otherpubs/pdfs/MPA_Network_report.pdf
Tekst:

Se tillige: Afrikansk natur ; Amerikas natur ; Arabisk natur ; Asiens natur ; Caribisk natur ; Europæisk natur ; Latinamerikansk natur ; Oceaniens natur, Sydamerikas natur.

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