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Journal of Environmental Protection 2014年第3期5卷 181-192页

作者： Emily Amanda Caffrey Mary Elizabeth Leonard jonathan bamberger napier Delvan Reed Neville Kathryn Ann Higley Department of Nuclear Engineering and Radiation Health Physics Oregon State University Corvallis USA.

The importance of radioecology to the discussion of radioactive contamination is discussed here. This paper discusses the history of radioecology, alongside the most recent developments in the science. It describes the need for more environmental data, and explains where the gaps in current knowledge lie. The calculation of radiation dose to wildlife along with the complications in performing such calculations is discussed. The paper also tackles the difficult question of the implications of radioecology on nuclear waste management and site decommissioning policies. From the beginnings of the science to today, radioecology is poised to be an important field of study as humans continue to rely on ionizing radiation to improve their lives.

关键词： Radioecology Wildlife Dose Calculations Nuclear Waste Disposal Environmental Protection

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Social interactions in striped hyena inferred from camera trap data:is it more social than previously thought?

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Current Zoology 2020年第4期66卷 345-353页

作者： jonathan TICHON Jason S.GILCHRIST Guy ROTEM Paul Ward Orr Spiegel Mitrani Department of Desert Ecology Ben-Gurion University of the NegevMidreshet Ben-Gurion 84990Israel School of Applied Sciences Edinburgh Napier University1 Sighthll CourtEdinburgh EH114BNUK Spatial Ecology Laboratory Department of Life SciencesBen-Gurion University of the NegevBeer ShebaIsrael Faculty of Lifle Sciences School of ZoologyTel Aviv UniversiyTel Aviv 69978Israel

Understanding the drivers promoting sociality over solitariness in animal species is imperative for predicting future population trends and informing conservation and *** this study we investigate the social structure of a desert dwelling population of striped hyena Hyaena *** species is historically regarded as strictly solitary albeit being the least studied of the extant *** evidence regarding the frequency of social interactions sug-gests a revision of striped hyena social structure is *** hypothesized that striped hyena has a social structure that is more complex than expected for a strictly solitary *** that end,we deployed an array of camera-traps in a remote desert region in Israel,and compared observed frequencies of striped hyena co-occurrence against null models to test whether hyena co-occurred more than expected by *** adults were(re)captured by our camera-traps in 49 different instances over 83 tracking *** these,6 exhibited shared space-use around a scarce,isolated perennial water *** of them,co-occurred with other hyena(in 3 instan-ces)significantly more frequent than expected by chance(and that timing suggests reproduction is unlikely to be the driving factor).Our findings substantiate evidence of complex social structure in striped hyena,highlight the importance of a scarce resource in space use and sociality,and provide a baseline for future research of striped hyena social *** suggest that similar methods be employed to evaluate social structure in other"solitary species"to better under-stand their social dynamics.

关键词： behavioral ecology cluster in space Hyaena hyaena social iteracin striped hyena social structure

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