Search results for " fauna"
showing 10 items of 103 documents
Fallow deer in Sicily: recent history, consistence and ecological role
2020
The fallow deer extends far beyond its original range due to recurrent extinctions and reintroductions. In Sicily, the species became extinct in the 19th century and reintroduced at the beginning of 1980. Individuals were initially restricted to fenced areas, however, many escaped and began rapid colonization. Here we report fallow deer population estimations in two areas comprising the bulk of individuals in Sicily: the Madonie mountains and the Ficuzza Nature Reserve, and we discuss the potential impacts and solutions. The data we collected confirm that fallow deer populations are in marked expansion in both areas, particularly in the Madonie. Compared to their initial range, fallow deer …
Crustacea Decapoda from Ustica (Southern Tyrrhenian Sea): species distribution and sampling approach.
2011
The decapod crustacean fauna of Ustica Island (Sicily, southern Tyrrhenian Sea) has been investigated in summer 2002 with the aid of many different sampling methods: suction device, pushnet, skid trawl, trammel net, traps, underwater observation, interviews. All the substrata occurring around the island from 0 to about -30 m were surveyed: midlittoral rock, infralittoral rock, pebbles, seagrass (Posidonia oceanica) bed, sand, detritic bottom, submerged cave. Fiftyseven species were collected in the investigated localities. Abundance and frequency of all species in the samples and in each surveyed biotope are given. The performance of each sampling method has been evaluated, in terms of numb…
Global monitoring of soil animal communities using a common methodology.
2022
Here we introduce the Soil BON Foodweb Team, a cross-continental collaborative network that aims to monitor soil animal communities and food webs using consistent methodology at a global scale. Soil animals support vital soil processes via soil structure modification, consumption of dead organic matter, and interactions with microbial and plant communities. Soil animal effects on ecosystem functions have been demonstrated by correlative analyses as well as in laboratory and field experiments, but these studies typically focus on selected animal groups or species at one or few sites with limited variation in environmental conditions. The lack of comprehensive harmonised large-scale soil anim…
Data from: The legacy of a vanished sea: a high level of diversification within a European freshwater amphipod species complex driven by 15 My of Par…
2015
The formation of continental Europe in the Neogene was due to the regression of the Tethys Ocean and of the Paratethys Sea. The dynamic geology of the area and repetitious transitions between marine and freshwater conditions presented opportunities for the colonization of newly emerging hydrological networks and diversification of aquatic biota. Implementing mitochondrial and nuclear markers in conjunction with a large-scale sampling strategy, we investigated the impact of this spatiotemporal framework on the evolutionary history of a freshwater crustacean morphospecies. The Gammarus balcanicus species complex is widely distributed in the area previously occupied by the Paratethys Sea. Our …
Data from: Patterns of earthworm, enchytraeid and nematode diversity and community structure in urban soils of different ages
2017
Annelids (Lumbricidae and Enchytraeidae) and nematodes are common soil organisms and play important roles in organic matter decomposition, nutrient cycling and creation of soil structure and porosity. However, these three groups have rarely been studied together and only few studies exist for urban soils. We studied the diversity and community composition of annelids and nematodes in soils spanning more than two centuries of urban soil development in Neuchâtel (Switzerland) and assessed the relationships 1) among these three groups and 2) between each group and environmental (physical, chemical and functional) characteristics of soils and soil age. While the groups of environmental variable…
Approccio alla caratterizzazione di un lembo di bosco vetusto: il caso di Monte Egitto
2017
An integrated approach to characterize an old growth forest patch; the Monte Egitto case study Old growth forests, i.e. forests which have achieved a remarkable age without or with a very limited disturbance, are nowadays subject of detailed studies in order to understand their characters and capacity of ecosystems services providing. In Sicily only few wooded areas are classified as old growth forest, following the heavy land use change toward agriculture during the centuries. This paper reports the results of a study carried out to characterize the vegetation of a little crater on the Mount Etna, where a residual open wood of Quercus congesta (an endemic oak of Southern Italy) survived th…
Vides faktoru loma epigeisko posmkāju faunas izplatībā Glāžupes piekrastē
2016
Maģistra darba ietvaros ir veikts pētījums un analizēti dati par epigeiskās posmkāju faunas izplatību Glāžupes piekrastes biotopos 2012. un 2014. gadā. Pētījums tika veikts piecos dažādos biotopos Glāžupes piekrastē. Kopumā tika ievākti paraugi no 373 augsnes lamatām, kuri pēc tam tika sadalīti pa taksonomiskajām grupām un noteikts īpatņu skaits. Darbā apskatīta epigeiskās posmkāju faunas bioliģija un ekoloģija, pētījuma teritorijā ietvertie biotopi un vides faktoru ietekme uz tiem. Pētījumā iegūtajiem datiem veikta matemātiskā apstrāde un analīze. Darbs sastāv no teorētiskās un praktiskās daļas aprakstiem. Darbā ir 38 attēli.
Assessing Benthic Macroinvertebrates in Relations to Environmental Variables and Revitalisation Works
2022
Abstract Macroinvertebrates of two ex-manor ponds located in Chroscina, Opole Region (Poland) were studied from 2015 to 2018 to investigate their community composition and diversity and evaluate the heterogeneity of communities on spatial and temporal scale referring to environmental variables and revitalisation work. A total of 32 taxa were recorded (at the family level, except Oligochaeta), 13 of which were Ephemeroptera, Odonata and Trichoptera, recognised as sensitive groups in lentic ecosystems. Macroinvertebrate richness and diversity varied considerably, especially in spring and summer. It was found that habitat heterogeneity influenced benthic invertebrates more than basic water par…
Un caso importante per la protezione della fauna in Sudafrica
1999
L'articolo analizza un leading case sudafricano in materia di protezione della fauna selvatica
La nuova legge sulla protezione della fauna in Zambia
2001
L'articolo analizza la disciplina di protezione della fauna selvatica in Zambia