نتایج جستجو برای: biosystematics

تعداد نتایج: 143  

2009
Guido Sautter Klemens Böhm Donat Agosti Christiana Klingenberg

Digitized legacy document marked up with XML can be used in many ways, e.g., to generate RDF statements about the world described. A prerequisite for doing so is that the document markup is of sufficient quality. Since fully automated markup-generation methods cannot ensure this, manual corrections and cleaning are indispensable. In this paper, we report on our experiences from a digitization a...

2017

GRANT, B. R., AND P. R. GRANT. 1981. Exploitation of Opuntia cactus by birds on the Galapagos. Oecologia 49:179-187. HESLOP-HARRISON, J. 1957. The experimental modification of sex expression in flowering plants. BioI. Rev. Cambro Phil. Soc. 32:38-90. KORES, P. J. 1979. Taxonomy and pollination in the wild Hawaiian orchids. M.S. Thesis. Univ. Hawaii, Honolulu. LoWREY, T. K., AND D. J. CRAWFORD. ...

2010
József Geml Frank Kauff Christian Brochmann D. L. Taylor

The arctic tundra is on the brink of significant changes and there are serious concerns among researchers and the public alike over the future of arctic biodiversity. The most serious threats are accelerating climate change and human impact. In addition to the scientific and economic importance of its unique biota, nutrient cycling in the Arctic has major National Herbarium of the Netherlands, ...

Journal: :CoRR 2014
Sandor Soos

Science mapping (SM), the study of the organization and development of science and technology, is a rapidly developing field within information science. The volume of available data allows this methodology to empirically address such issues as the historical development of topics, discourses, fields or of the entire science system. Based on the pool of related methods, we are proposing an integ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه زابل - دانشکده کشاورزی 1387

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