23,327 research outputs found
Avaliação do impacto de métodos florestais e de seca severa na população de coelho-bravo na mata nacional de Quiaios
No full textMestrado em Ecologia, Biodiversidade e Gestão de EcossistemasO papel determinante na cadeia trófica, faz do coelho-bravo (Oryctolagus
cuniculus) uma espécie chave dos ecossistemas ibéricos onde constitui a principal
presa de um vasto leque de predadores, alguns dos quais de elevado valor de
conservação. Este factor confere uma relevância ainda maior ao acentuado
declínio que esta espécie tem sofrido, na generalidade dos ecossistemas
mediterrânicos, provocado pela perda e fragmentação do seu habitat, por doenças,
predação e pressão cinegética excessiva. Neste trabalho efectuou-se o estudo e
caracterização das dinâmicas populacionais de coelho-bravo na Mata Nacional de
Quiaios, uma floresta costeira no centro de Portugal, incluída na rede Natura 2000.
Pretendeu-se por um lado, estudar o impacto de métodos florestais,
nomeadamente actividades de silvicultura preventiva contra o avanço de espécies
vegetais invasoras, e, por outro, o impacto de um período de seca severa nas suas
populações. Foram monitorizadas as populações de coelho-bravo duas vezes por
ano, Verão e Inverno, nas várias zonas preestabelecidas. A primeira época
estudada foi o Verão de 2002 e a última foi a de Inverno de 2008. A determinação
da abundância do coelho-bravo foi feita através da contagem de latrinas por
classes, ao longo de percursos predefinidos. Foram considerados os seguintes
biótopos: (i) zona de matos densos; (ii) zona de matos com baixa densidade de
acácia; (iii) zona de acacial; (iv) zona de limpeza mecânica de 2005; (v) zona de
limpeza mecânica de 2006; (vi) zona de pinhal esparso; (vii) zona de pinhal denso;
(viii) zona de duna. Os resultados obtidos confirmam os efeitos das limpezas
mecânicas, sugerindo, no entanto, um impacto diferenciado consoante a
metodologia aplicada. O método utilizado em 2005 foi mais agressivo e provocou
uma taxa de mortalidade mais elevada, enquanto que, o de 2006, apenas originou
o abandono do local. No que diz respeito ao efeito da seca, os resultados também
apontam no sentido do seu impacto nas populações dado que foram observadas
fortes diminuições coincidentes com o referido período. De salientar, ainda, que
este impacto dependeu do habitat estudado, dado que, em alguns dos biótopos,
como a duna e o acacial, não foram verificadas quebras na abundância. Este facto
deveu-se, provavelmente, ao tipo de vegetação dominante nestes habitats,
adaptada a ambientes secos, pelo que os períodos de seca não se devem reflectir
de forma tão evidente na disponibilidade alimentar. Este trabalho mostrou como
uma monitorização de coelho-bravo, utilizando metodologias simples e
económicas, pode constituir um importante contributo para uma mais correcta
gestão dos ecossistemas ibéricos.The determinant role in trophic chain, makes wild rabbit (Oryctolagus cuniculus) a
key species of Iberian ecosystems, being the main prey to a large number of
predators, some of which of great conservation value. This factor confers a higher
relevance to its marked decline observed on the majority of mediterranic
ecosystems, caused by habitat loss and fragmentation, and diseases, predation
and high hunting pressure. This work aimed to study and characterize the wild
rabbit population dynamics in Quiaios National Forest, a coastal forest in the centre
of Portugal included in a Natura 2000 network site. It was intended to study, in one
hand, the impact of forest practices, such as activities of preventive forestry against
the advance of invading species, and, in other hand, the impact of a severe drought
on populations. Wild rabbit populations were monitorized twice a year, Summer and
Winter, in predefined areas. Summer 2002 was the first studied season and Winter
2008 was the last. The determination of wild rabbit abundances was carried on
through latrine counts along the sampling transects. Several biotopes were defined:
(i) dense scrublands; (ii) scrublands with low densities of Acacia longifolia; (iii)
scrublands with high densities of Acacia longifolia; (iv) the 2005 intervention area;
(v) the 2006 intervention area; (vi) sparse pine forest; (vii) dense pine forest; (viii)
dune. The results confirm the effect of interventions suggesting, however, a
differentiated impact depending on the applied methodology. The 2005 intervention
was more aggressive provoking a higher mortality rate, while the 2006 intervention
only cause the area abandonment. Concerning drought effects, results also point
toward to an impact in populations given the strong reductions observed in its
abundance, coincident to that period. However, it has to be referred that this impact
showed to depend on the biotope, because in some of them, like dune and
scrublands with high densities of Acacia longifolia, decreases in species abundance
wasn’t detected. This fact is, probably, related with the dominant vegetation type of
those areas, adapted to dry environments, with lower effects on the rabbit’s food
availability. This work showed a how a wild rabbit monitorization, using simple and
economical methodologies, can provide reliable and comparable results that may
constitute an important contribute to a sustainable management of Iberian forest
areas
Os atributos da fotografia em revistas culturais no Brasil: um estudo de Bravo!, Cult e Rolling Stone Brasil
No full textDissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Comunicação e Expressão, Programa de Pós-Graduação em Jornalismo, Florianópolis, 2014.O estudo propõe uma reflexão sobre os atributos estéticos da imagem fotográfica em três revistas culturais publicadas no Brasil. Partindo das características inerentes ao processo produtivo do jornalismo cultural, no qual recursos criativos, críticos e de divulgação são utilizados com maior amplitude, recorre-se à estética da fotografia, um conceito trabalhado pelo francês François Soulages, como método de investigação. Teoricamente, a pesquisa fundamenta-se em três eixos: o do Jornalismo Cultural, evidenciando, também, características do jornalismo de revista; o da Fotografia e o da Estética. Considerando o jornalismo cultural contemporâneo um continuum formado por cultura, estilo de vida e consumo, onde é função do jornalista mediar a relação entre os bens simbólicos culturais e o público, a pesquisa orienta-se por dois objetivos: (1) identificar os atributos da imagem fotográfica em revistas de cultura no Brasil e (2) verificar de que modo tais atributos permitem visualizar e refletir sobre a configuração de uma estética da fotografia no âmbito do jornalismo cultural. Compõe o objeto empírico do estudo proposto o conteúdo jornalístico das revistas Bravo!, Cult e Rolling Stone Brasil, centralizado nas edições publicadas em 2012.Abstract : The present study proposes a reflection on the aesthetic attributes of photographic images as displayed in three cultural magazines published in Brazil. Beginning with the inherent characteristics of the cultural journalism production process, in which creative, critical and publicity resources are most strongly represented, the study then incorporates the aesthetics of photography, as employed by french author François Soulages as an investigation method. Three theoretical axes represent the foundation of the research presented: Cultural Journalism, which shares characteristics with magazine journalism; Photography, and Aesthetics. Considering cultural journalism as a continuum shaped by culture, lifestyle, and consumption, in which the role of the journalist is to mediate the relationship between symbolic representations of culture and the public, this study has the following objectives: (1) to identify the attributes of photographic imagery in Brazilian cultural magazines, and (2) to evaluate the role of those attributes in the conception of, and reflection on, the structure of the aesthetics of photography within cultural journalism. The empirical data of this study is the journalistic content of the magazines Bravo!, Cult, and Rolling Stone Brasil, comprising the editions published in 2012
Inundicola Bravo, Isler, and Brumfield 2013 is a junior synonym of Akletos Dunajewski 1948 (Aves: Passeriformes: Thamnophilidae)
No full textIsler, Morton L., Bravo, Gustavo A., Brumfield, Robb T. (2014): Inundicola Bravo, Isler, and Brumfield 2013 is a junior synonym of Akletos Dunajewski 1948 (Aves: Passeriformes: Thamnophilidae). Zootaxa 3779 (3): 399-400, DOI: http://dx.doi.org/10.11646/zootaxa.3779.3.1
Foliar Disease Detection in the Field Using Optical Sensor Fusion
No full textRosana G. Moreira, Editor-in-Chief; Texas A&M UniversityThis is a paper from International Commission of Agricultural Engineering (CIGR, Commission Internationale du Genie Rural) E-Journal Volume 6 (2004): C. Bravo, D. Moshou, R. Oberti, J. West, A. McCartney, L. Bodria and H. Ramon. Foliar Disease Detection in the Field Using Optical Sensor Fusion. (December 2004)
Maruina (Maruina) menina Bravo & Lago 2003
No full textMaruina (Maruina) menina Bravo & Lago, 2003 Diagnosis. Eye bridge separated by nine facet diameter; R3 and M2 not attached to veins; aedeagus with monomorphic spines; female with hypovalve pedunculate and apically bifid. Distribution. Bahia: Ituberá (type locality), Camacan, Santa Terezinha and Cachoeira (new records). Material examined. Type specimens: Holotype ♂ and allotype ♀. Additional material: BRAZIL, Bahia, Camacan, Serra Bonita, córrego 3, 15º23´02’’S 33º34´10”W, 806 masl, XI. 2009, Malaise trap, Calor, A. & Lecci, L. cols., 2 ♂ (#24587, 24586) and 1 ♀ (#24588) (MZFS); Bahia, Santa Terezinha, Serra da Jibóia, riacho Torres, 08.VIII ̶ 28.IX.2009, Malaise trap, Calor, A. & Lecci, L.L. cols., 2 ♀ and 1 ♂ (MZFS); Bahia, Cachoeira, Fazenda Villa Rial, 25.IV. 2004, F. Bravo col., 1 ♂ (MZFS)Published as part of Bravo, Freddy & Araújo, Maíra Xavier, 2018, Two new species and new records of Maruina Müller, 1895 (Diptera: Psychodidae) in Brazil, pp. 189-194 in Zootaxa 4415 (1) on page 194, DOI: 10.11646/zootaxa.4415.1.11, http://zenodo.org/record/124181
Lepidiella maculosa Araújo & Bravo 2019, sp. nov.
No full textLepidiella maculosa, sp. nov. (Figs. 1 A–F) Type material. Holotype, male: BRAZIL, Bahia, [Elísio Medrado], Serra da Jibóia, Sede GAMBA [Environmentalist Group of Bahia] [12° 51' S; 39 28' W], (ligth trap), 10.v.2017, Silva-Neto, Mendes & Moura cols. (MZFS), specimen dissected, mounted on micro-slide. Etymology. The specific epithet, from Latin maculosus, spotted, refers to the marks on hypandrium. Diagnosis. Head without cornicula; eyes separated by 2.0 facet diameters; scape without internal protuberance; interocular suture inverted V-shaped; hypandrium with microtrichia arranged in circular groups; aedeagus symmetrical, bifid, digitiform with a medial external lobe; two pairs of parameres, external pair fused medially forming a U-shaped plate; internal pair well sclerotized, lanceolate. Description. Male holotype. Head without corniculum. Vertex dorsally expanded. Eyes separated by 2.0 facet diameters; eye bridge with four facet rows; interocular suture inverted V-shaped; frons with hair patch not divided at center, extending dorsally and reaching the interocular suture (Fig. 1A). Scape subspherical, approximately the same length as pedicel, without internal protuberances. Antenna incomplete; first three flagellomeres fusiform, each one with pair of filiform ascoids (Fig. 1B). Relative palpomere proportion: 1.0:1.1:1.2:2.0 (Fig. 1C). Wing (Fig. 1D). 2.5 times longer than wide; wing membrane brownish, with costal cell darker; lighter spots between veins R 5 /M 1 to CuA; Sc not reaching C; sc-r absent; radial fork distal to medial fork; R 4 ending at wing tip; CuA not reaching wing margin. Male terminalia: hypandrium plate-like, subtriangular with microtrichia arranged in circular groups (Figs. 1E, 1F); length of gonocoxite 0.3 times the length of gonostylus; gonostyli narrow, basally inflated, bare, except in the base with patch of alveoli; aedeagus symmetrical, bifid, distally digitiform; two pairs of parameres, external pair fused forming a U-shaped plate; internal pair ending at the same place of aedeagus, well sclerotized, lanciform, ending in pointed apex; ejaculatory apodeme dorsoventrally flattened (Fig. 1E); epandrium 2.5 times wider than long, with two foramina and two distal patches of alveoli (Fig. 1G); cercus digitiform, 1.2 the length of epandrium; left cercus with 12 tenacula (Fig. 1F) and right cercus with 11 tenacula; hypoproct and epiproct subtriangular with apical micropilosity (Fig. 1G). Female: Unknown Remarks. Males of five species of Lepidiella have a head without cornicula: the Brazilian species L. flabellata Bravo & Santos, 2011, L. maculata sp. nov., L. olgae Bravo & Araújo, 2013 and L. spinosa Bravo, 2005, and one Costa Rican species, L. hansoni (Quate, 1996). The males of these five species can be recognized using the male identification key proposed below.Published as part of Araújo, Maíra Xavier & Bravo, Freddy, 2019, Two new species of Lepidiella Enderlein, 1937 (Diptera: Psychodidae) from the Neotropical Region with taxonomic comments about the species of the genus, pp. 487-493 in Zootaxa 4551 (4) on pages 487-489, DOI: 10.11646/zootaxa.4551.4.9, http://zenodo.org/record/262314
Trichomyia cetrae Araujo & Bravo, sp. nov.
No full textTrichomyia cetrae Araújo & Bravo sp. nov. (Figs. 4 A–G) Diagnosis. Medial posterior expansion on gonocoxite, apically bifurcate; gonostylus bifurcate, sclerotized, articulated ventrally at gonocoxite; aedeagal complex with two pairs of projections, one dorsal subtriangular and one ventral wider than dorsal projection; ejaculatory apodeme twice the length of gonostylus. Description. Male. Head subcircular in frontal view. Antenna incomplete in the studied specimens; scape as long as the subspherical pedicel; (Fig. 4 A); flagellomeres pyriform and eccentric; ascoids twice the length of flagellomere (Fig. 4 B). Palpus formula 1.0: 0.7: 0.9 (Fig. 4 C). Wing. R 4 + 5 incomplete at base; r-m and m-cu absent (Fig. 4 D). Male terminalia: Hypandrium fused with gonocoxites, with medial posterior expansion, apically bifurcate (Fig. 4 E). Arm of gonocoxites L inverted shaped in lateral view (Fig. 4 G) and with elongated bristles along the medial margin. Gonostylus bifurcate, sclerotized, articulated dorsally at gonocoxite (Fig. 4 E). Two pairs of projections in the aedeagal complex dorsal pair subtriangular, ventral pair wider than dorsal projections in the aedeagal complex (Fig. 4 G). Aedeagus truncated in the apex (Fig. 4 E). Ejaculatory apodeme twice the length of gonostylus (Figs. 4 E, 4 G). Epandrium pilose, apically wider than basally (Fig. 4 F). Cercus pilose (Figs. 4 E), rhomboid in lateral view (Fig. 4 G). Hypoproct with apical micropilosity (Fig. 4 F). Female. Unknown. Material examined. Brazil, Bahia, Cachoeira municipality, Fazenda Villa Rial, 24.V. 2004, holotype ♂, F. Bravo leg. (MZUEFS). Etymology. The epithet cetrae is an allusion to the shape of the male terminalia that resembles a scepter. Distribution. Brazil—BahiaPublished as part of Araújo, Maíra Xavier & Bravo, Freddy, 2016, Description of fourty four new species, taxonomic notes and identification key to Neotropical Trichomyia Haliday in Curtis (Diptera: Psychodidae, Trichomyiinae), pp. 1-76 in Zootaxa 4130 (1) on pages 19-20, DOI: 10.11646/zootaxa.4130.1.1, http://zenodo.org/record/26271
Molecular composition of organic matter controls methylmercury formation in boreal lakes (Raymond L. Lindeman Award)
No full textAssociation for the Sciences of Limnology and Oceanography Aquatic Sciences Meeting (ASLO 2019), Planet Water - Challenges and Successes, 23 February - 2 March 2019, San Juan, Puerto RicoThe Raymond L. Lindeman Award honors a young author for an outstanding peer-reviewed, English-language paper in the aquatic sciences. The 2019 award was presented to Andrea Bravo (Institute of Marine Sciences, Barcelona, Spain) for her paper "Molecular composition of organic matter controls methylmercury formation in boreal lakes" (Bravo, Andrea G. et al., Nature Communications 8: 14255 (2017), doi: 10.1038/ncomms14255). Bravo’s research, published in Nature Communications in 2017, challenges the traditional mercury cycle by demonstrating the role of organic matter compo-sition on bacterial activity, and ultimately, on mercury methylation rates in boreal lak
Cecco Bravo, "Aurora"
No full textLa scheda identifica la fonte letterario del dipinto di Cecco Bravo, L'"Aurora"
Acangarana santossilvai Nascimento & Bravo 2018, sp. nov.
No full textAcangarana santossilvai sp. nov. (Figs 3–7) Description. Male. Integument reddish-brown; with yellowish-white pubescence and yellowish erect setae. Head. Frons finely rugose; with short setae near ocular margin and antennal tubercles. Antennal tubercles with surface glabrous, contiguous and abruptly elevated at apex. Area between upper eye lobes rugose, with sparse, shallow punctures slightly larger and shallow than on elytra; erect and elongate setae sparsely distributed. Gulamentum with elongate, sparse erect setae. Scape coarsely rugose. Antennal formula (ratio) based on length of antennomere III: scape = 0,55; pedicel = 0,14; IV = 1,05; V =1,15; VI = 1,13; VII = 0,93; VIII = 1,01; IX = 0,97; X= 0,96; XI = 0,95; XII=0,94. Thorax. Pronotum with slight, irregular wrinkles; anteromedial area with two shallow depressions; posterior constriction pubescent (pubescence prolonged toward sides of prothorax); surface with long, erect setae sparsely distributed. Prosternal process narrow at middle, about 1/6 of width of procoxal cavity, wider toward apex. Scutellum with pubescence on posterior margins. Dimensions (in mm). Total length, 6.6; prothorax length, 1.2; greatest width of prothorax, 0.9; humeral width, 1.1; elytral length, 4.4. Type material. Holotype male from BRAZIL, Bahia, Piatã (Cachoeira do Patrício; 13°05’11.1” S / 41°51’13.3”W; 1.256 m), 04–05.XI.2013, Nascimento F.E., Menezes E., Carvalho J., Cordeiro D. & Bravo F. col. (MZFS). Etymology. This species is named in honor of Antonio Santos-Silva for his work and commitment to the taxonomy of Cerambycidae. Remarks. In addition to the generic characteristics, Acangarana santossilvai sp. nov. is easily differentiated from Acangassu diminuta Galileo & Martins, 2001 by the reddish-brown integument without spots on the elytra. Acangassu diminuta has reddish integument on the head and prothorax, antennae and legs are yellowish and the elytra are reddish, gradually yellowish toward apex, and with yellowish spots.Published as part of Nascimento, Francisco E. De L. & Bravo, Freddy, 2018, Review of Acangassuini Galileo & Martins, 2001 (Insecta, Coleoptera, Cerambycidae), with description of a new genus and species, and description of two new species in the tribes Methiini Thomson, 1860 and Oemini Lacordaire, 1868, pp. 576-584 in Zootaxa 4379 (4) on pages 578-580, DOI: 10.11646/zootaxa.4379.4.9, http://zenodo.org/record/117512
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