By Corrado Battisti, Gianluca Poeta, Giuliano Fanelli
This booklet represents an introductory overview of disturbance ecology and hazard research, offering schematic recommendations and techniques helpful for paintings on websites which are laid low with the effect of human activities. it really is geared toward conservation and environmental practitioners, who will locate guidance for selecting tools and techniques while there are conflicts among the ordinary elements and human job. it's also addressed to scholars of utilized ecology, atmosphere administration, land-use making plans and environmental effect evaluation. It discusses a few themes lined within the courses of many collage classes on the topic of easy ecology and ecology of disturbance, the latter constituting a box of significant curiosity as a result of its implications and repercussions in utilized territorial technology.
The ebook is split into components: the 1st makes a speciality of the theoretical and disciplinary framework of the ecology of disturbance, whereas the second one is dedicated to the research of anthropogenic threats. This, particularly, discusses the newest process, which makes use of a traditional nomenclature to permit a coarse-grained quantification and goal review of hazard impression on assorted environmental elements. Such an technique enables the comparability of hierarchically varied occasions and, accordingly, is helping outline the priorities for administration and conservation strategies.
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Additional info for An Introduction to Disturbance Ecology: A Road Map for Wildlife Management and Conservation
Absolute intensity or intensity. , the overall temperature or energy emitted by a ﬁre, the amount of heavy metals or other chemicals introduced in a water stream) independent from the effects caused on speciﬁc environmental components. Such an attribute can be normalized to the extent of the event and/or to the event duration (through the intensity/time or space ratio); – relative intensity or severity. This attribute allows an evaluation of the effects exerted by the event on the target environmental components which have been identiﬁed (targeted) as sensitive to the event itself (for example the basal area of a sensitive plant association removed by a given disturbance).
In fact, only a limited number of highly resistant species can persist over the medium-long term in a patch where the disturbances show a high degree of frequency and severity. , with no disturbances or when their frequency and intensity are extremely low. Stenoecious species are a good case in point, since they are strictly linked to stable conditions and to the absence of perturbations. Unlike those species adapted either to perturbed and unstable conditions or, conversely, to stable and undisturbed ones, the majority of these show a certain degree of ecological generalism which enables them to persist at intermediate disturbance levels (compare with the Intermediate Disturbance Hypothesis; Connell 1978; Hobbs and Huenneke 1992).
5 ABC diagram for a community of ground-dwelling micro-mammals (Soricomorpha and Rodents: 11 species, each represented by a circle or a square) preyed upon by a barn owl (Order Strigiformes; species: Tyto alba) in the Mount Soratte natural reserve (Latium, central Italy; from Prete et al. 2012). , of the ﬁrst two dominant species, and so on). Squares and broken curve refer to the frequencies calculated on biomass; circles and continuous curve refers to the frequencies calculated on individuals (abundances).