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A new early brachyuran (Crustacea, Decapoda) from the Middle Jurassic of northwest France, epibionts and ecological considerations Naturalis
Robin, N.; Bakel, B.W.M. van; Hondt, J.-L. d'; Charbonnier, S..
The earliest known crabs are of Early and Middle Jurassic age; in general, they are rare. Here we describe a new species of homolodromioid from the late Bathonian of Sarthe (France), based on a single dorsal carapace, Tanidromites raboeufi n. sp. This specimen has mostly well-preserved cuticle, and shows two episkeletozoans (bryozoan colonies) on its dorsal side, which is unique amongst early brachyurans (Early and Middle Jurassic). These bryozoans are identified as juvenile colonies of the morphogenus Berenicea (sheet-like tubuluporines), typical encrusters of hard substrates. Their presence directly on the carapace crab shows that they were closely cohabitating with this early brachyuran in its palaeoenvironment. One of these colonies appears to have...
Tipo: Article / Letter to the editor Palavras-chave: Bathonian; Cyclostome bryozoans; Epibiosis; Episkeletozoans; Homolodromioidea; 38.22; 42.74.
Ano: 2015 URL: http://www.repository.naturalis.nl/record/578952
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Acting against common bunt: exploration of various control methods Organic Eprints
Fontaine, Laurence; Robin, N.; Bruyère, J.; du CHEYRON, P..
Common bunt (Tilletia caries, Tilletia foetida) is a fungal disease with a large ability to spread. Consequences may be rejection of grains for sale or even a large decrease of yield. Different trials were carried out in organic farming in a research project (funded by the French Ministry of Agriculture between 2008 and 2011) to achieve a better control of common bunt. Results confirm that the resistance of wheat cultivars is a factor to consider. Despite most varieties currently cultivated in organic farming are sensitive to common bunt, some cultivars appeared to be resistant to the races tested. Concerning seed treatment, no product is available for organic farming and 100% efficient; but several solutions have been identified. Only one product is...
Tipo: Journal paper Palavras-chave: Cereals; Pulses and oilseeds Crop husbandry Crop health; Quality; Protection.
Ano: 2013 URL: http://orgprints.org/26256/1/Fontaine_2013_CIAG_Vol32.pdf
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