Maintenance of the Species Boundary between Silene dioica and S. latifolia (Red and White Campion)

Oikos ◽  
1997 ◽  
Vol 79 (1) ◽  
pp. 115 ◽  
Author(s):  
Dave Goulson ◽  
Karen Jerrim
Keyword(s):  
Silene Dioica ◽  
White Campion ◽  
Species Boundary

Flat-cutting loosening in the system of fallow cultivation of chernozem soil and weediness of crops

2017 ◽  
Vol 1 (92) ◽  
pp. 78-84
Author(s):  
G. Koval ◽  
M. Kaliyevskiy ◽  
V. Yeshchenko ◽  
I. Martyniuk ◽  
N. Martyniuk
Keyword(s):  
Species Composition ◽  
Crop Rotation ◽  
Field Experiments ◽  
Early Spring ◽  
Weed Species ◽  
Wild Mustard ◽  
Spring Crop ◽  
White Campion ◽  
Investigation Methods ◽  
Top Soil

The article presents the results of field experiments, where on the basis of podsolized heavy loamy chernozem the influence of replacement of mouldboard ploughing with nonmouldboard cultivation over top soil weediness, weediness at the beginning and end of spring crop vegetation and weed species composition before harve sting were studied. Investigation methods of main fall ploughing under spring crops of five-course rotation: soybeans–rape–wheat–flax–barley at the depths of 15-17, 20-22, 25-27 cm were conducted after post-harvest field tillage. Analysis of data on contamination of the top soil with weed seeds have shown that with the replacement of fall main mouldboard ploughing gwith nonmouldboard cultivation the figure before sowing of all crops withdifferent tillage depthat crop rotation average increased by 131-132%. It caused the increase of actual weed infestation of all crops and at the beginning and end of spring crop vegetationafter different depths of fall nonmouldboard cultivation compared with ploughing at crop rotation average it was 120–132 and 123-138%respectively. Species composition of weeds afterthe replacement of main fall mouldboard ploughing with nonmouldboard cultivation remained mainlyunchanged; although in rape plantings the proportion of white campion and early spring weed sincreased, in wheat plantings– wild mustard andscentless mayweed, insoybean plantings– late spring weeds, in flax plantings– white campion, and in barley plantings– scarlet pimpernel.

The population genetic approach delineates the species boundary of reproductively isolated corymbose acroporid corals

2012 ◽  
Vol 63 (2) ◽  
pp. 527-531 ◽  
Author(s):  
Yuichi Nakajima ◽  
Akira Nishikawa ◽  
Akira Iguchi ◽  
Kazuhiko Sakai
Keyword(s):  
Population Genetic ◽  
Genetic Approach ◽  
Species Boundary

scholarly journals Strong phylogeographic co-structure between the anther-smut fungus and its white campion host

2016 ◽  
Vol 212 (3) ◽  
pp. 668-679 ◽  
Author(s):  
Alice Feurtey ◽  
Pierre Gladieux ◽  
Michael E. Hood ◽  
Alodie Snirc ◽  
Amandine Cornille ◽  
...  
Keyword(s):  
Smut Fungus ◽  
White Campion ◽  
Anther Smut

Writing Beyond the Species Boundary

2019 ◽  
pp. 127-156
Author(s):  
Özlem Öğüt Yazıcıoğlu ◽  
Ezgi Hamzaçebi
Keyword(s):  
Species Boundary

Chimeras, Superchimps, and Post-persons

2021 ◽  
pp. 197-214
Author(s):  
Sarah Chan
Keyword(s):  
Moral Status ◽  
Transition Process ◽  
Biological Species ◽  
Species Boundaries ◽  
Human Species ◽  
The World ◽  
Species Boundary ◽  
The Creation ◽  
Moral Properties ◽  
Status Enhancement

In the world of contemporary biotechnology, our thinking about species and moral status is being challenged in new ways. First, the creation of interspecies chimeras, in disrupting the human/non-human species boundary, forces us also to go beyond species boundaries in considering how to determine the moral status of these new beings. Second, the possibility of moral status enhancement (or at least enhancing the capacities that on some accounts give rise to moral status), both for non-human animals and for humans, may lead to members of existing biological species having new moral properties, or perhaps even the creation of new ‘moral species’. This chapter explores normative and conceptual challenges raised by the prospect of crossing both biological and moral ‘species boundaries’. It examines the implications of species transitions in relation to identity, obligations towards existing beings and beings that might be created via the species transition process; and reflects on how this might advance our thinking about moral status.

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