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281.
Sex identification in female crayfish is bimodal 总被引:1,自引:0,他引:1
Sex identification has been studied in several species of crustacean decapods but only seldom was the role of multimodality investigated in a systematic fashion. Here, we analyse the effect of single/combined chemical and visual stimuli on the ability of the crayfish Procambarus clarkii to identify the sex of a conspecific during mating interactions. Our results show that crayfish respond to the offered stimuli depending on their sex. While males rely on olfaction alone for sex identification, females require the combination of olfaction and vision to do so. In the latter, chemical and visual stimuli act as non-redundant signal components that possibly enhance the female ability to discriminate potential mates in the crowded social context experienced during mating period. This is one of the few clear examples in invertebrates of non-redundancy in a bimodal communication system. 相似文献
282.
Evaluation of carbon stock variation in Northern Italian soils over the last 70 years 总被引:1,自引:0,他引:1
Carbon (C) sequestration in soils is gaining increasing acceptance as a means of reducing net carbon dioxide (CO2) emissions to the atmosphere. Numerous studies on the global carbon budget suggest that terrestrial ecosystems in the mid-latitudes
of the Northern Hemisphere act as a large carbon sink of atmospheric CO2. However, most of the soils of North America, Australia, New Zealand, South Africa and Eastern Europe lost a great part of
their organic carbon pool on conversion from natural to agricultural ecosystems during the explosion of pioneer agriculture,
and in Western Europe the adoption of modern agriculture after the Second World War led to a drastic reduction in soil organic
carbon content. The depletion of organic matter is often indicated as one of the main effects on soil, and the storage of
organic carbon in the soil is a means of improve the quality of soils and mitigating the effects of greenhouse gas emission.
The soil organic carbon in an area of Northern Italy over the last 70 years has been assessed In this study. The variation
of top soil organic carbon (SOC) ranged from −60.3 to +6.7%; the average reduction of SOC, caused by agriculture intensification,
was 39.3%. This process was not uniform, but related to trends in land use and agriculture change. For the area studied (1,394 km2) there was an estimated release of 5 Tg CO2-C to the atmosphere from the upper 30 cm of soil in the period 1935–1990. 相似文献
283.
Lucie Plhalova Jana Blahova Lenka Divisova Vladimira Enevova Francesca Casuscelli di Tocco Caterina Faggio 《Chemistry and Ecology》2018,34(3):199-210
The objective of the study was to investigate the subchronic effects of the insecticidal preparation NeemAzal T/S at concentrations of 3, 10 and 30?mg/L on the mortality, growth and histopathology of juvenile zebrafish (Danio rerio), as well as its related effects on selected indices of oxidative stress during a 28-day toxicity test. The juvenile growth toxicity test was performed according to OECD Guidelines 215 (Fish, Juvenile Growth Test). The results of this study indicate that these tested concentrations of NeemAzal T/S (containing 1% of the active ingredient azadirachtin A) affect fish growth and have a negative influence on the indices of oxidative stress in the juvenile stage of zebrafish, as well as cause mild histopathological changes in liver tissue. 相似文献
284.
Mali Matilda Di Leo Antonella Giandomenico Santina Spada Lucia Cardellicchio Nicola Calò Maria Fedele Alessandra Ferraro Luciana Milia Alfonsa Renzi Monia Massara Francesca Granata Tommaso Moruzzi Letizia Buonocunto Francesco Paolo 《Environmental science and pollution research international》2022,29(41):62281-62298
Environmental Science and Pollution Research - The Gulf of Naples located in a high anthropized coastal area is subjected to an infrastructural intervention for the installation of a submarine... 相似文献
285.
Morin-Crini Nadia Lichtfouse Eric Fourmentin Marc Ribeiro Ana Rita Lado Noutsopoulos Constantinos Mapelli Francesca Fenyvesi Éva Vieira Melissa Gurgel Adeodato Picos-Corrales Lorenzo A. Moreno-Piraján Juan Carlos Giraldo Liliana Sohajda Tamás Huq Mohammad Mahmudul Soltan Jafar Torri Giangiacomo Magureanu Monica Bradu Corina Crini Grégorio 《Environmental Chemistry Letters》2022,20(2):1333-1375
Environmental Chemistry Letters - The rise of emerging contaminants in waters challenges the scientific community and water treatment stakeholders to design remediation techniques that are simple,... 相似文献