scholarly journals Findings of Rare Plants and Animals in the Eastern Part of the Object of the Emerald Network �Samarskyi Lis � UA0000212�

Agrology ◽  
2021 ◽  
Vol 4 (1) ◽  
pp. 47-53
Author(s):  
O. Masiuk ◽  
R. Novitskyi ◽  
D. Ganzha ◽  
M. Listopadskyi ◽  
V. �akhina
Keyword(s):  
2009 ◽  
pp. 129-132
Author(s):  
B. M. Mirkin ◽  
V. B. Martynenko ◽  
S. M. Yamalov

Peer-reviewed monograph opens with a Foreword by V. P. Sedelnikov "From the editor", wh ere it is reported that this is the first book in a new series "Vegetation of Siberia", "In the context of biodiversity conservation and the growing interest in rare plants and communities need to give the most complete picture of the phytocoenotic diversity of Siberia. To further summarize knowledge of vegetation is important to the publication of primary data arrays of geobotanical descriptions on all types of communities."


2002 ◽  
Vol 85 (2) ◽  
pp. 308-316 ◽  
Author(s):  
Theresa L. Pitts-Singer ◽  
James L. Hanula ◽  
Joan L. Walker

Nature ◽  
1876 ◽  
Vol 13 (339) ◽  
pp. 516-517
Author(s):  
T. D.

1999 ◽  
Vol 77 (1) ◽  
pp. 140-149 ◽  
Author(s):  
David E Giblin ◽  
Clement W Hamilton

The fecundity of rare plants is a commonly used indicator of performance at the population or species level. However, accurately interpreting reproductive output requires an understanding of a particular species's breeding system. The purpose of this study was to determine if reproductive biology contributes to the restricted distribution of Aster curtus Cronq. We hypothesized that (i) A. curtus, like many Asteraceae species, is self-incompatible, and (ii) that pollinations between patches produce significantly more filled seeds than pollinations within patches. Fluorescent microscopy of pistils harvested after greenhouse pollination showed A. curtus to be partially self-compatible. Cross-pollination resulted in significantly more pollen grains per stigma and significantly greater pollen germination than self-pollination. Similarly, field pollination trials showed that between-patch crosses produced significantly more filled seeds than within-patch crosses. Nevertheless, within-patch pollinations produced substantial levels of filled seed. Results from the greenhouse and field trials suggest that the reproductive biology of A. curtus contributes little to its rarity. Understanding why A. curtus is rare has important implications to the conservation of the glacial outwash prairie. Moreover, the data from this research can be used in further developing predictive models for plant species rarity based on reproductive biology.Key words: Aster, endemic, Pacific Northwest, rarity, reproductive biology, self-incompatibility.


Brittonia ◽  
1983 ◽  
Vol 35 (2) ◽  
pp. 184
Author(s):  
Thomas Elias ◽  
R. S. Mitchell ◽  
C. J. Sheviak

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