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Figure 1 in Neottialges (Caloenectes) vulturis (Dubinin, 1956) (Acari: Hypoderatidae) from the Eurasian griffon vultureGyps( fulvus) in Italy: first record in Europe, redescription and pathological changes in the host
No full textFigure 1 Neottialges (Caloenectes) vulturisin subcutaneous tissues of Gyps fulvus: A – numerous cysts containing mites, surrounded by a granulomatous reaction. B – cyst with a sectioned parasitic mite. Note the numerous foamy macrophages * surrounding the cyst. HematoxylinPublished as part of Liberato, Claudio De, Magliano, Adele, Tancredi, Francesco, Eleni, Claudia, Posillico, Mario & Mironov, Sergey, 2018, Neottialges (Caloenectes) vulturis (Dubinin, 1956) (Acari: Hypoderatidae) from the Eurasian griffon vultureGyps( fulvus) in Italy: first record in Europe, redescription and pathological changes in the host, pp. 255-264 in Acarologia 58 (2) on page 257, DOI: 10.24349/acarologia/20184239, http://zenodo.org/record/450233
The effect of thinning on bat activity in Italian high forests: the LIFE+ " ManFor C.BD." experience
No full textBats represent a major component of forest biodiversity. In forest, bats find many roosting and foraging opportunities. When foraging in forest, different bat species exploit a range of microhabitats according to their echolocation and flight style. When roosting, bats require sufficient numbers of suitable tree cavities. Overall, forest structure may influence both foraging and roosting behaviour, and in turn the number of bat species present and their population size. The exploitation of forests for commercial purposes may be a threat to biodiversity when logging leads to habitat loss, alteration or fragmentation. While some bat species may benefit from an increase in the amount of edge habitat determined by logging, others, more specialized to exploit forest interiors, may be potentially harmed. In this study we set out to assess the effect on foraging bats of different management approaches, comparing locally applied traditional approaches with innovative multifunctional management options and delayed logging. Within the framework of the LIFE+ ManFor C.BD. Project we surveyed the effects of thinning at four Italian forest sites, each representing a separate case study. We found that in logged plots bat activity either showed no difference from unlogged plots or resulted in an increase in foraging activity, suggesting that thinning, at least in the forest types we dealt with, has no adverse consequences on bat foraging. However, in our case the effects varied greatly across sites and were detected mostly when all bat species were pooled together for analysis. We conclude that forest exploitation may be sustainable and even favour foraging bats, but since our work neither covered direct mortality linked with forestry operations nor roost loss, further studies are needed to analyze these important aspects. We also highlight that total bat activity revealed by acoustic surveys carried out with automatic recorders may be used as an appropriate indicator of forestry effects on bats
Generalisation within specialization: inter-individual diet variation in the only specialized salamander in the world
No full textNeottialges Fain 1966
No full textGenus Neottialges Fain, 1966 The genus Neottialges was established by Fain (1966) and originally included six species; at present it incorporates 28 species and is the most specious within the family (Mironov and Kivganov 2010). Within this genus, Fain (1966, 1967) originally recognized three subgenera, Caloenectes Fain, 1966, Neottialges s str., and Pelecanectes Fain, 1966. Further, Fain and Lukoschus (1986) established two more subgenera, Ardeidectes Fain and Lukoschus, 1986 and Heronidectes Fain and Lukoschus, 1986. Representatives of this genus are presently known from birds of the orders Accipitriformes, Ciconiformes, Charadriiformes, Columbiformes, Musophagiformes, Falconiformes and Pelecaniformes (Fain 1967; Fain and Lukoschus 1986; Mironov and Kivganov 2010). In the world revision of hypoderatids parasitizing birds, Fain (1967) did not assign Neottialges vulturis to any subgenus, because he was unable to re-examine any specimens of this mite. Based on the recollected material we examined in the present study, we place this species in the subgenus Caloenectes (see remark below).Published as part of Liberato, Claudio De, Magliano, Adele, Tancredi, Francesco, Eleni, Claudia, Posillico, Mario & Mironov, Sergey, 2018, Neottialges (Caloenectes) vulturis (Dubinin, 1956) (Acari: Hypoderatidae) from the Eurasian griffon vultureGyps (fulvus) in Italy: first record in Europe, redescription and pathological changes in the host, pp. 255-264 in Acarologia 58 (2) on page 257, DOI: 10.24349/acarologia/20184239, http://zenodo.org/record/450233
Estimating survival in the Apennine brown bear accounting for uncertainty in age classification
No full textFor most rare and elusive species, estimating age-specific survival is a challenging task, although it is an important requirement to understand the drivers of population dynamics, and to inform conservation actions. Apennine brown bears Ursus arctos marsicanus are a small, isolated population under a severe risk of extinction, for which the main demographic mechanisms underlying population dynamics are still unknown, and population trends have not been formally assessed. We present a 12-year analysis of their survival rates using non-invasive genetic sampling data collected through four different sampling techniques. By using multi-event capture–recapture models, we estimated survival probabilities for two broadly defined age classes (cubs and older individuals), even though the age of the majority of sampled bears was unknown. We also applied the Pradel model to provide a preliminary assessment of population trend during the study period. Survival was different between cubs [ϕ = 0.51, 95% CI (0.22, 0.79)], adult males [ϕ = 0.85, 95% CI (0.76, 0.91)] and adult females [ϕ = 0.92, 95% CI (0.87, 0.95)], no temporal variation in survival emerged, suggesting that bear survival remained substantially stable throughout the study period. The Pradel analysis of population trend yielded an estimate of λ = 1.009 [SE = 0.018; 95% CI (0.974, 1.046)]. Our results indicate that, despite the status of full legal protection, the basically stable demography of this relict population is compatible with the observed lack of range expansion, and that a relatively high cub mortality could be among the main factors depressing recruitment and hence population growth.</p
ASSESSMENT OF THE EXPOSURE TO HEAVY METALS IN EURASIAN GRIFFON VULTURES (GYPS FULVUS) FROM CENTRAL ITALY
No full textThe aim of this study was to investigate heavy metals concentrations in feathers of a griffon vulture population (Gyps fulvus, Linnaeus 1758) present in the central Italy. Body feathers of 27 live griffon vultures were examined for lead, chromium and cadmium by inductively coupled plasma mass spectrometry (ICP-MS) while for mercury by thermal decomposition amalgamation and atomic absorption spectrophotometry (TDA-AAS). The heavy metals concentrations did not differ significantly between juveniles and adults neither between males and females. The analysed samples showed a lower Hg concentration than those found elsewhere for this species. Furthermore, for Cr, Cd and Hg levels were not significant correlations between tarsus length and body weight. Contrary Pb was negatively correlated with tarsus length, showing the absence of recent exposure of the birds
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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