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131.
Richard Dominique Neculita Carmen Mihaela Zagury Gérald J. 《Environmental science and pollution research international》2021,28(12):14854-14866
Environmental Science and Pollution Research - The effectiveness of compost, peat-calcite, and wood ash to remove Ni from a circum-neutral-contaminated mine water was tested in continuous flow... 相似文献
132.
Mathieu Muller Julie Jimenez Maxime Antonini Yves Dudal Eric Latrille Fabien Vedrenne Jean-Philippe Steyer Dominique Patureau 《Waste management (New York, N.Y.)》2014,34(12):2572-2580
The design and management of anaerobic digestion of sewage sludge (SS) require a relevant characterisation of the sludge organic matter (OM). Methods currently used are time-consuming and often insufficiently informative. A new method combining chemical sequential extractions (CSE) with 3D fluorescence spectroscopy was developed to provide a relevant SS characterisation to assess both OM bioaccessibility and complexity which govern SS biodegradability. CSE fractionates the sludge OM into 5 compartments of decreasing accessibility. First applied on three SS samples with different OM stability, fractionation profiles obtained were in accordance with the latter. 3D fluorescence spectroscopy revealed that the bioaccessible compartments were mainly constituted of simple and easily biodegradable OM while the unaccessible ones were largely made of complex and refractory OM. Then, primary, secondary and anaerobically digested sludge with different biodegradabilities were tested. Complexity revealed by 3D fluorescence spectroscopy was linked with biodegradability and chemical accessibility was correlated with sludge bioaccessibility. 相似文献
133.
Rachel T. Buxton Jordanna N. Bergman Hsien-Yung Lin Allison D. Binley Stephanie Avery-Gomm Richard Schuster Dominique G. Roche Joseph R. Bennett 《Conservation biology》2020,34(6):1331-1332
Article impact statement: COVID-19 has demonstrated the need to optimize research activity, convey the gravity of loss, and reevaluate merit in conservation science. 相似文献
134.
Summary Field data show that in the cichlid fish Lamprologus brichardi conspecifics other than the reproducing pair help in brood care and territory maintenance. The expected degree of relatedness between helpers and the eggs or larvae they tend lies between 0.25 and 0.5, decreasing with the helper's age. This decrease might influence the point of time at which helpers depart. Five other endemic Lake Tanganyika cichlids showing rather similar helping behaviour are described. 相似文献
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Spatial distribution of lindane in topsoil of Northern France 总被引:1,自引:0,他引:1
Estelle Villanneau Nicolas P.A. Saby Dominique Arrouays Claudy C. Jolivet Line Boulonne Giovanni Caria Enrique Barriuso Antonio Bispo Olivier Briand 《Chemosphere》2009,77(9):1249-1255
Lindane is a persistent organochlorine insecticide and the use of this insecticide in agriculture was banned in France in 1998. In this study we investigated the concentrations of lindane in topsoil in Northern France and used robust geostatistics to map the geographical distribution of lindane. The study was based on a 16 km × 16 km grid covering an area of ca 25 000 km2. Lindane was found in all soils, even those from non-agricultural-application areas. Very low ratios of α-/γ-HCH and δ-/γ-HCH suggested that a long time had passed since technical HCH was used in the studied area, or that emission sources of lindane were still present. A strong gradient in lindane concentration was observed, with the highest lindane concentrations in an area located in the northern region. Results suggested that some of the lindane observed in the high concentration area may have come from volatilization of old lindane applied to intensively cultivated areas, which was then transported by prevailing winds coming from the south-west and deposited in a densely inhabited depression. 相似文献
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Emma L. Taylor Dominique Blache David Groth John D. Wetherall Graeme B. Martin 《Behavioral ecology and sociobiology》2000,47(5):359-364
Parentage in emus (Dromaius novaehollandiae) was examined by microsatellite analysis using four independent loci. Of 106 chicks sampled in one breeding season from 18
nests, 54 (51%) were not fathered by the nesting male, 12 (11%) were not from the observed mate of the sitting male, and 9
(8%) represented intra-specific brood parasitism, having no alleles in common with either nest parent. Some males (11%) fathered
all chicks in their nests, but the majority showed high levels of cuckoldry. Those males commencing incubation earliest in
the season tended to have the highest levels of paternity in their own nests. These results reveal a high frequency of extra-pair
fertilisations and resultant cuckoldry in a predominantly socially monogamous bird and support recent reports which have described
the emu mating system as a complexity of polyandrous, promiscuous and monogamous behaviour. Parentage assignment of chicks
resulting from extra-pair fertilisations revealed an evenly scattered pattern of paternity that did not show any particular
male dominance in reproductive success. These results lead to a reassessment of behavioural observations of emus, the consequences
of parentage distribution, and theories about mating systems and sexual selection. The frequency of extra-pair copulations
and intra-specific brood parasitism suggests patterns of descent that differ greatly from those implied by social monogamy.
Received: 27 November 1999 / Received in revised form: 8 January 2000 / Accepted: 8 February 2000 相似文献