1,720,973 research outputs found

    Taxonomical characterization of Posidonia oceanica banquettes and driftwoods-related fauna

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    The proposed work provide a multilevel approach for two beach-related allocthonous inputs: P. oceanica banquettes and driftwoods. Since beaches are commonly perceived as true deserts, their biological values and their ecological importance are often underestimated leading even more inadequate management strategies. Banquettes - more related to seasonal cycles of P. oceanica - have been studied through coil sampling and Berlese-Tullgren extraction, focusing mainly on the infaunal arthropods. Fauna associated to driftwoods has been surveyed through pitfall trapping, aiming to study more surface related organisms. The taxonomical characterization has been followed by estimation of species richness according to the most recent frameworks, to provide an insight to these high-diverse biocenosis inferring meaningful differences within and between sampled sites. The observed diversity has been characterized through a qualitative as well as quantitative approach. Three widely used ecological index, as well as Collembola lifeforms have been applied to study the composition and the structure of beach related fauna. Moreover, as shoreline environments undergo increasing anthropocentric pressure resulting from demographic growth and recreational-only oriented management, the response of the studied fauna to several environmental factors has been analysed through linear models and community composition analysis. The number of observed species is not directly related to the individual abundance recorded for each site.The observed - and often underestimated - taxonomical richness is determined by socalled rare species, which carry most of the diversity information. Nevertheless the composition of the observed communities change in time and space under the combined effects of several enviromental variables

    Acerentulus tortii sp. nov. from Greece (Protura: Acerentomidae)

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    Galli, Loris, Capurro, Matteo, Lionetti, Giuseppe, Zinni, Matteo (2017): Acerentulus tortii sp. nov. from Greece (Protura: Acerentomidae). Zootaxa 4232 (3): 437-443, DOI: https://doi.org/10.11646/zootaxa.4232.3.1

    L’importanza dei Proturi nell’ambito delle biocenosi del suolo: stato delle conoscenze

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    The current knowledge on Protura are too scarce, fragmentary and heterogeneously distributed throughout the World to get a reliable detailed biogeographical and ecological panorama. In the present paper an overview about some aspects of Protura ecology based on literature and on original data of the authors is outlined. In particular, information about phenology, feeding ecology, ecological distribution and habitat selection is provided

    FIGURES 1–8 in Acerentulus tortii sp. nov. from Greece (Protura: Acerentomidae)

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    FIGURES 1–8. Acerentulus tortii sp. nov. 1) Head, dorsal view. 2) Pseudoculus. 3) Canal of maxillary gland. 4) Maxillary palpus. 5) Labial palpus. 6) Foretarsus, exterior view. 7) Foretarsus, interior view. 8) Pro, meso and metanotum. Arrows indicate pores. Figs. 1–5: holotype; Figs. 6–8: paratypes.Published as part of Galli, Loris, Capurro, Matteo, Lionetti, Giuseppe & Zinni, Matteo, 2017, Acerentulus tortii sp. nov. from Greece (Protura: Acerentomidae), pp. 437-443 in Zootaxa 4232 (3) on page 440, DOI: 10.11646/zootaxa.4232.3.12, http://zenodo.org/record/31210

    FIGURES 10–13. Acerentulus apuliacus. 10 in Redescription of two European species of Acerentomidae (Protura) belonging to the Italian fauna

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    FIGURES 10–13. Acerentulus apuliacus. 10) Thoracic tergites. 11) Tergites VI–VII. 12) Tergites VIII–XII. 28) Comb on abdominal tergite VIII. Figs. 11‒13 from the original drawings by Rusek & Stumpp (1988).Published as part of Galli, Loris, Capurro, Matteo, Costa, Fabio, Sarà, Gabriele Di Stadio Antonio & Zinni, Matteo, 2016, Redescription of two European species of Acerentomidae (Protura) belonging to the Italian fauna, pp. 303-315 in Zootaxa 4154 (3) on page 306, DOI: 10.11646/zootaxa.4154.3.5, http://zenodo.org/record/27216

    FIGURES 31–39. Podolinella ruseki comb. nov. 31 in Redescription of two European species of Acerentomidae (Protura) belonging to the Italian fauna

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    FIGURES 31–39. Podolinella ruseki comb. nov. 31) Tergites V–VII. 32) Tergites VIII–XII. 33) Prosternum. 34) Metasternum. 35) Sternites V–VII. 36) Sternites VIII–XII. 37) Comb on abdominal tergite VIII. 38) Male squama genitalis. 39) Female squama genitalis. Arrows indicate pores.Published as part of Galli, Loris, Capurro, Matteo, Costa, Fabio, Sarà, Gabriele Di Stadio Antonio & Zinni, Matteo, 2016, Redescription of two European species of Acerentomidae (Protura) belonging to the Italian fauna, pp. 303-315 in Zootaxa 4154 (3) on page 314, DOI: 10.11646/zootaxa.4154.3.5, http://zenodo.org/record/27216

    Ecology of Italian Protura

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    The ecology of Protura in Italy (including Corsica) is tentatively described according to original and bibliographical data. Protura are quite common but very rarely abundant: their mean density in soil samples collected in Liguria (NW Italy) was estimated to be 372 /m2 (s.d. 657 – max. 2790 /m2 in a Holm oak forest). Information from the analyses of habitat and/or elevation of 3448 specimens from 269 collections and 4071 specimens from 295 collections identified to species and genus level, respectively, enabled us to outline Protura assemblages for eight different macro-habitats. The unbalanced sex ratio in favour of females observed in 12 of the dominant species of Acerentomata suggests that (based also on the sperm types known in Protura) a single male can fertilize several females through spermatophores. For one species (Proturentomon minimum) only females were collected, which may suggest the possibility of parthenogenesis in some Protura. An analysis of the phenology and population dynamics of the five dominant species, showed annual cycles with one (Acerentomon microrhinus) or more (A. gallicum, A. italicum, A. maius and Eosentomon transitorium) peaks of reproductive activity. Other ecological remarks (e.g. about the relationship between the amplitude of latitudinal/altitudinal distribution and the ecological distribution of Protura in Italy) are discussed

    FIGURES 1–9. Acerentulus apuliacus. 1 in Redescription of two European species of Acerentomidae (Protura) belonging to the Italian fauna

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    FIGURES 1–9. Acerentulus apuliacus. 1) Head. 2) Dorsal side of the anterior part of the head. 3) Scheme of the dorsal side of the head. 4) Pseudoculus (left and right side). 5) Canal of maxillary gland. 6) Maxillary palpus. 7) Labial palpus. 8) Foretarsus, exterior view. 9) Foretarsus, interior view. Arrows indicate pores. Figs. 1, 2, 4, 9 from the original drawings by Rusek & Stumpp (1988).Published as part of Galli, Loris, Capurro, Matteo, Costa, Fabio, Sarà, Gabriele Di Stadio Antonio & Zinni, Matteo, 2016, Redescription of two European species of Acerentomidae (Protura) belonging to the Italian fauna, pp. 303-315 in Zootaxa 4154 (3) on page 305, DOI: 10.11646/zootaxa.4154.3.5, http://zenodo.org/record/27216

    A synopsis of the ecology of Protura (Arthropoda: Hexapoda)

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    Key to Acerentomata families 1A Only abdominal appendages I two segmented.........................................................................................................2 1B Abdominal appendages I and II two-segmented......................................................................................................3 2A Sternite VIII with two anterior and four posterior setae: formula 2/4................................ Hesperentomidae (part) 2B Sternite VIII never with 2/4 setae, normally with four anterior and none or two posterior setae: formula 4/0 or 4/2..................................................................................................................................................... Acerentomidae 3A All three pairs of abdominal appendages two-segmented with a terminal vesicle and four setae..........................4 3B Abdominal appendages I and II two-segmented with a terminal vesicle and three to four setae, appendages III unisegmented without terminal vesicle and with two to three setae.............................................................................5 4A Labial palps with tuft of setae, three distinct setae and basal sensillum; pseudoculi with a large triangular prolongation in the proximal part.......................................................................................... Protentomidae (part) 4B Labial palps with tuft of setae and three distinct setae, but without basal sensillum; pseudoculi pear-like, strongly elevated and with a median S-shaped cleft......................................................................... Hesperentomidae (part) 5A Abdominal sternites II-VI all with an even number of posterior setae (seta Pc always absent)........................................................................................................................................................................... Hesperentomidae (part) 5B An odd number of setae in the posterior row (seta Pc present) of at least one of the abdominal sternites II-VI....................................................................................................................................................... Protentomidae (part)Published as part of Galli, Loris, Capurro, Matteo, Colasanto, Elisa, Molyneux, Tony, Murray, Andy, Torti, Carlo & Zinni, Matteo, 2019, A synopsis of the ecology of Protura (Arthropoda: Hexapoda), pp. 155-164 in Revue suisse de Zoologie 126 (2) on page 156, DOI: 10.5281/zenodo.346344
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