Tangled Bank hypotheses
Tangled Bank hypotheses A set of hypotheses, proposed by G. Bell in 1982, which emphasize the importance of the spatial heterogeneity found in a complex environment (i.e. a Tangled Bank) in the maintenance of sexual reproduction. The fitness of a genotype that is successful in one location but less so in another may not be inherited by its offspring. It may be advantageous, therefore, for siblings to disperse at random into microsites nearby, regardless of the local success of the genotype. It is argued that this allows greater penetration of microsites than would be possible for clones of a parthenogenetically reproducing organism and reduces competition among siblings. The ‘Tangled Bank’ is taken from the opening sentence of the final paragraph of Darwin'sOrigin of Species: ‘It is interesting to contemplate an entangled bank, clothed with many plants of many kinds, with birds singing on the bushes, with various insects flitting about, and with worms crawling through the damp earth, and to reflect that these elaborately constructed forms, so different from each other, and dependent on each other in so complex a manner, have all been produced by laws acting around us.’
More From encyclopedia.com
Deutsche Bank A.g , Taunusanlage 12
60262 Frankfurt am Main
Germany
(4969) 71500
Fax: (4969) 7150-4225
Public Company
Incorporated: 1870
Employees: 73,450
Total Assets:… The Royal Bank Of Scotland Group Plc , 42 St. Andrew Square
Edinburgh EH2 2YE
United Kingdom
Telephone: (0131) 556 8555
Fax: (0131) 556 8535
Web site: http://www.royalbankscot.co.uk
Public… The Chase Manhattan Corp , Public Company
Incorporated: 1969
Employees: 35,774
Total Assets: $123.9 billion
Stock Exchanges: New York London Paris Düsseldorf
Frankfurt
SICs: 67… Bankamerica Corp , BankAmerica Corp
Bankamerica Corporation
555 California Street
San Francisco, California 94104
(415) 622-3456
Public Company
Incorporated: 1904 as th… Bank Mergers , Banking
This entry includes 9 subentries:
Overview
Bank Failures
Banking Acts of 1933 and 1935
Banking Crisis of 1933
Export-Import
Banks Investment… The Bank Of New York Company Inc , Public Company
Incorporated:l96S
Employees: 14,500
Assets: $47.4 billion
Stock Index: New York
Certain corporations come to bear the impress of a sin…
You Might Also Like
NEARBY TERMS
Tangled Bank hypotheses