- Danish colonization of the Americas
to whaling hunt bowhead whales , though no formal recolonization was attempted. In 1721, Church ... more details
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- Larch
0264 3 cite journal author Wei, X. X., & Wang, X. Q. year 2004 title Recolonization and radiation ... more details
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- Weir
wiktionary Other uses File Thorp Gristmill Weir.jpg thumb right A weir at the Thorp grist mill in Thorp, Washington A weir IPAc en icon w r is a barrier across a river designed to alter the flow characteristics. In most cases, weirs take the form of a barrier across the river that causes water to pool behind the structure not unlike a dam but allows water to flow over the top. Weirs are commonly used to alter the flow regime of the river, prevent flooding, measure discharge and help render a river navigable. Function File Humber Weir.JPG A weir on the Humber River near Raymore Park in Toronto, Ontario thumb right File Coburg Lake Wier.jpg left thumb The weir at Coburg, Victoria Coburg lake in Victoria Australia after heavy rainfall. Weirs allow Hydrology hydrologists and engineers a simple method of measuring the volumetric flow rate in small to medium sized streams or in industrial discharge locations. Since the geometry of the top of the weir is known and all water flows over the weir, the depth of water behind the weir can be converted to a rate of flow. The calculation relies on the fact that fluid will pass through the critical depth of the flow regime in the vicinity of the crest of the weir. If water is not carried away from the weir, it can make flow measurement complicated or even impossible. The discharge can be summarized as math Q C L H n math Where Q is flow rate C is a constant for structure L is the width of the crest H is the height of head of water over the crest n varies with structure e.g. 3 2 for horizontal weir, 5 2 for v notch weir A weir may be used to maintain the vertical profile of a stream or channel, and is then commonly referred to as a grade stabilizer such as the weir in Duffield, Derbyshire. The crest of an overflow spillway on a large dam is often called a weir . Weirs, referred to as low head barrier dams in this context, are used in the control of invasive sea lamprey in the Great Lakes . They serve as a barrier to prevent reco ... more details
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- Palm Warbler
recolonization of eastern Canadian bogs after peat mining . Canadian Journal of Zoology. vol 76 , no 6 ... more details
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- Metapopulation
because it allows recolonization of patches The Levins model Levins original model applied to a metapopulation ... more details
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- Machilus
of genetic diversity and recolonization dispersal. They Was tested in Taiwan in the existence of a single ... more details
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- Population genetics of the Sami
journal author A. Torroni et al. title A signal, from human mtDNA, of postglacial recolonization ... more details
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- Pygmy madtom
are isolated from each other by impoundments, making recolonization of any extirpated population ... more details
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- Tyto robusta
, and T. gigantea appeared later, supposedly alongside it as well as a recolonization by Continental ... more details
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- Draining of the Mesopotamian Marshes
Restoration Program , iraqmarshes.org, p.6 ref There has been some corresponding recolonization by the natural ... more details
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- Education in Belize
name cr Nowhere were fears of recolonization more realized than in higher education. In 1979 the ruling ... more details
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- Keita Integrated Development Project
the behavior of natural vegetation trees and herbaceous during the recolonization of degraded lands ... more details
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- Mutaflor
Immunol. 1995, 463 4. McCann ML et al. Recolonization therapy with nonadhesive Escherichia coli ... more details
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- Cantabrian Chamois
, where very low densities of chamois made the natural recolonization of these areas difficult Figure ... more details
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- List of Mammals in New England
Image Map of USA New England.svg thumb 275px right New England states are indicated in red. There are 7 orders, 17 families, 40 genera, and 60 species represented among the Mammals of New England . If extirpated, coastal, introduced, and accidental species are included these numbers increase to 8 orders, 26 families, 67 genera, and 105 species. The region includes the U.S. states of Maine , New Hampshire , Vermont , Massachusetts , Connecticut , and Rhode Island . The makeup and distribution of the mammals in New England are largely the result of the Last Glacial Maximum when the Laurentide ice sheet covered virtually the entire region. Recolonization of the area appears to have occurred from one or a few southern glacial refugium glacial refugia . This is in contrast to the multiple glacial refugia present throughout the American West Stone and Cook, 2000 . As a consequence of both the recent uninhabitability and the few sources of recolonization, species diversity for some taxa in parts of New England are lower than in similar areas in other parts of North America. Chipmunk s and ground squirrel s are exemplars of this situation. New England has one species of each, but numerous locations west of the Rocky Mountains host several species Hall, 1981 . Habitat varies throughout the region. Maine, New Hampshire, and Vermont, in the north of the region, have a humid continental short summer climate, with cooler summers and long, cold winters. Massachusetts, Connecticut, and Rhode Island, in the south, have a humid continental long summer climate, with hot summers and cold winters. The average rainfall for most of the region is from 1,000 to 1,500 mm 40 to 60 in a year, although the northern parts of Vermont and Maine see slightly less, from 500 to 1,000 mm 20 to 40 in . Snowfall can often exceed 2,500 mm 100 in annually New England Climate Initiative, 2006 . Most mammals in this region exhibit specializations for dealing with the sometimes harsh winter c ... more details
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- Muskox
conservative hunting quotas to foster recovery and recolonization from the historic declines. ref ... more details
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- Agrobacterium tumefaciens
of illegitimate recolonization. It selects the section of the DNA in the host plant that will be replaced ... more details
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- Northern Short-tailed Shrew
Taxobox name Northern Short tailed Shrew ref name msw3 MSW3 Hutterer pages 269 ref status LC status system iucn3.1 status ref ref name iucn IUCN2008 assessors NatureServe Hammerson, G. year 2008 id 41451 title Blarina brevicauda downloaded 2008 11 23 ref image Blarina brevicauda.jpg regnum Animal ia phylum Chordata classis Mammal ia ordo Soricomorpha familia Soricidae genus Blarina species B. brevicauda binomial Blarina brevicauda binomial authority Thomas Say Say , 1823 range map Northern Short tailed Shrew area.png range map caption Northern Short tailed Shrew range The Northern Short tailed Shrew Blarina brevicauda is the largest shrew in the genus Blarina , ref name MSA and occurs in the northeastern region of North America . ref name ADW It is a fossorial semifossorial , highly active and voracious insectivore and is present in a variety of habitats. ref name Kurta It is notable in that it is one of the few venomous mammals . The specific name zoology specific epithet , brevicauda , is a combination of the Latin brevis and cauda , meaning short tail . ref name MSA Taxonomy Blarina brevicauda is a red toothed shrew , one of three or four species depending on the authority ref name MSA in the genus Blarina . It was formerly considered to be a sister subspecies of the Southern Short tailed Shrew Blarina carolinensis . ref name MSA The species has been divided into eleven subspecies based on morphology biology morphological characteristics, which are grouped into two semi species brevicauda and talpoides . These groupings were mirrored by a molecular phylogenetics molecular systematics study of the mitochondrion mitochondrial cytochrome b sequence. ref name Brant Citation doi 10.1046 j.1365 294X.2003.01789.x last1 Brant first1 Sara V. last2 Orti first2 Guillermo title Phylogeography of the Northern short tailed shrew, Blarina brevicauda Insectivora Soricidae past fragmentation and postglacial recolonization journal Molecular Ecology volume 12 year 2003 pages 1435 1 ... more details
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- Holarctic
. Ahnert. Second Edition. Springer, Verlag, Netherlands. Sommer, R. S. N. Benecke. 2005. The recolonization ... more details
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- List of Sigma Chi chapters
inactive as of April 5, 2012 for hazing related incidences and substance abuse. Recolonization can ... more details
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- Spruce-fir forests
These resistances make it possible for the biodiversity to greatly increase during recolonization ... more details
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- Basque Prehistory
as meaning a recolonization of the cold areas of Central Europe from the comparatively warmer Franco ... more details
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- Pamela Ronald
the recolonization of Mt. St Helens, where http blogs.reed.edu the riffin griffin 2011 08 helen stafford ... more details
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- Phylogeography
of species populations and recolonization. ref name Schneider A comparative phylogenetic approach ... more details
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- Walter E. Fauntroy
the recolonization of Africa. The Afro noted that it was unable to confirm any aspects of Fauntroy ... more details
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