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Taxonomy and identification of Lohora Moore (Lepidoptera : Satyrinae), the Sulawesi bush browns
No full textA dichotomous key and revisional notes are presented for all 17 known species of Lohora Moore, a genus of satyrine butterflies endemic to the Sulawesi Region (Indonesia). Detailed information on primary type material of all taxa is included, together with description of a new species, L. anna, from Lore Lindu National Park previously misidentified in the literature as L. deianira (Hewitson). The recognition of some species, notably a complex centred on L. transiens (Fruhstorfer) that includes L. anna, sp. nov., is difficult and the rank of certain other taxa is problematic. A detailed revision remains necessary if this, the major endemic radiation of butterflies on Sulawesi, is to be better understood
The butterfly fauna of the Noyau Central, Lama Forest (Republic of Benin), with notes on its ecological composition and geographic distribution
No full textThe Noyau Central (c. 4777 ha) in south-central Benin is the largest remaining natural forest within the Dahomey Gap. Based on field work conducted in 1998, a preliminary list of 83 butterfly species is presented for this largely unknown core area of the Lama Forest. Forty butterfly species were documented for the first time in Benin. Forty-one are true lowland forest specie, not found in savanna. Overall species richness was higher in clearings, than in closed forest. However, a high proportion of forest species, especially those with a more restricted geographic range, were exclusively captured in the forest patches. Because other forest areas in Benin are much smaller, the Noyau Central is likely to contribute critically to the conservation of the country's butterfly fauna
The butterfly fauna of the Noyau Central, Lama Forest (Republic of Benin), with notes on its ecological composition and geographic distribution
No full textThe Noyau Central (c. 4777 ha) in south-central Benin is the largest remaining natural forest within the Dahomey Gap. Based on field work conducted in 1998, a preliminary list of 83 butterfly species is presented for this largely unknown core area of the Lama Forest. Forty butterfly species were documented for the first time in Benin. Forty-one are true lowland forest specie, not found in savanna. Overall species richness was higher in clearings, than in closed forest. However, a high proportion of forest species, especially those with a more restricted geographic range, were exclusively captured in the forest patches. Because other forest areas in Benin are much smaller, the Noyau Central is likely to contribute critically to the conservation of the country's butterfly fauna
Forest use and vertical stratification in fruit-feeding butterflies of Sulawesi, Indonesia: impacts for conservation
No full textProtected forest areas of Sulawesi are gradually being replaced by intensively used agroforestry systems and farmland, especially in lowland and sub-montane regions. Studies on the impact of these man-induced changes on biodiversity are of urgent conservation concern. We compared the fruit-feeding butterfly assemblage of a natural hill forest to that of a disturbed hill forest, representing a mosaic of old secondary forest and recently abandoned or active subsistence farms. Overall, species richness seemed highest in the disturbed site, but both abundance and diversity of endemic butterflies were significantly higher in the natural forest. Although the butterfly assemblage showed a clear vertical structure in the natural forest, vertical stratification was no longer pronounced at the disturbed site. Comparative studies based on diversity estimates from ground samples should consider not only the scale at which sampling is carried out and influences from nearby habitat patches in the surrounding landscape mosaic, but also possible behavioural changes in stratified species after forest modification. This study shows that higher overall species richness does not imply higher species distinctiveness, and indicates that the contribution of land-use systems to global biodiversity should be evaluated with caution, even when relatively high species richness estimates are found
Presentation des données du biomonitoring dans les forets classes de l'est de la côte d'Ivoire
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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
From forest to farmland: Habitat effects on afrotropical forest bird diversity
No full textAlthough the Guinea-Congolian rain forest region is an important focal point for conservation in Africa, very little information is available on the effects of forest modification and land use on the region's biodiversity. We studied bird communities and vegetation characteristics in 24 sampling stations distributed over two near-natural forests (near-primary forest, secondary forest), and two land use types (agroforestry, annual cultures) in the lowlands of the Korup region, Cameroon. Repeated sampling was used to establish near-complete inventories of bird assemblages for each site. Despite a 90% average drop in tree basal area, from forest to farmland, overall bird species richness did not decrease significantly with increasing habitat modification. However, different groups of birds responded in different ways. Frugivorous and omnivorous bird species richness did not differ between habitats, whereas richness in granivorous, flower-visiting, and nonbreeding species was higher in land use systems compared to forests. In contrast, insectivorous birds, especially terrestrial and large arboreal foliage gleaning insectivores, and ant followers showed,a declining species richness from forest to farmland. Also, richness in species of those restricted to the Guinea-Congolian forest biome and of the family Pycnonotidae showed a pronounced decline with increasing habitat modification. Species richness of overall insectivores, terrestrial insectivores, large- and medium-sized arboreal foliage gleaners, ant followers, as well as pycnonotids and biome-restricted species, were strongly or even very strongly positively correlated with overstory tree density and, in most cases, also with basal area. In contrast, tree density and basal area were strongly negatively correlated with species richness of nonbreeding visitors and flower-visiting bird species. Species composition was most distinct between near-primary forest and annual culture sites, and the abundance of 23 out of 165 species was affected by habitat, suggesting considerable partitioning of habitat niches along the habitat gradient. Our results stress the importance of tree cover in tropical land use systems for the maintenance of resident forest bird populations and confirm that natural forest management is more beneficial for global bird conservation compared to other forms of forest exploitation, including agroforestry systems
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
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