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Full-Text Articles in Life Sciences

Molecular Evidence For Inclusion On The Phylum Pentastomida In The Crustacea, Lawrence G. Abele, Won Kim, Bruce E. Felgenhauer Jan 1989

Molecular Evidence For Inclusion On The Phylum Pentastomida In The Crustacea, Lawrence G. Abele, Won Kim, Bruce E. Felgenhauer

Harold W. Manter Laboratory: Library Materials

The phylogenetic status of the phylum Pentastomida (tongue worms) was considered on the basis of comparison of nucleotide sequences of 18S ribosomal RNA from the pentastome Porocephalus crotali, the branchiuran crustacean fish louse Argulus nobilis, other crustaceans, and representatives of the Annelida, Chelicerata, Myriapoda, and Insecta. Maximum parsimony and invariants (at P < 0.04) analyses support an Argulus/Porocephalus clade, providing strong support for the proposal that tongue worms are highly modified crustaceans closely related to fish lice.


Loss Of Biological Diversity: A Global Crisis Requiring International Solutions: A Report To The National Science Board, Craig Call Black, Perry L. Adkisson, Gardner Mallard Brown, Rita Rossi Colwell, Charles E. Hess, James B. Holderman, K. June Lindstedt-Siva, William A. Nierenberg, Peter Hamilton Raven, Theodore M. Smith, Edward O. Wilson, W. Franklin Harris Jan 1989

Loss Of Biological Diversity: A Global Crisis Requiring International Solutions: A Report To The National Science Board, Craig Call Black, Perry L. Adkisson, Gardner Mallard Brown, Rita Rossi Colwell, Charles E. Hess, James B. Holderman, K. June Lindstedt-Siva, William A. Nierenberg, Peter Hamilton Raven, Theodore M. Smith, Edward O. Wilson, W. Franklin Harris

Harold W. Manter Laboratory: Library Materials

Executive Summary

Biological diversity refers to the variety and variability among living organisms and the ecological complexes in which they occur. Diversity can be defined as the number of different items and their relative frequency. For biological diversity, these items are organized at many levels, ranging from complete ecosystems to the chemical structures that are the molecular basis of heredity. Thus, the term encompasses different ecosystems, species, genes, and their relative abundance (OTA, 1987).

There is an ongoing, unprecedented loss of the variety as well as absolute numbers of organisms-from the smallest microorganism to the largest and most spectacular of …


Case Report Of Human Infection With Capillaria Philippinensis, Ching-Yu Chen, Wei-Chuan Hsieh, Tsang-Lie Chen Jan 1989

Case Report Of Human Infection With Capillaria Philippinensis, Ching-Yu Chen, Wei-Chuan Hsieh, Tsang-Lie Chen

Harold W. Manter Laboratory: Library Materials

In July 1988, a case of human infection with Capillaria philippinensis, so-called the intestinal capillariasis, was discovered at the National Taiwan University Hospital (NTUH). This is the first case reported in Taiwan.

Capillaria philippinesis is a parasite of fish-eating birds In nature it has a fish-bird life cycle. When human populations disrupt the natural cycle by eating raw fish infected with the larvae of C. philippinensis, they may acquire the disease.