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| Registros recuperados: 884 | |
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| Teodósio,Érico A. O.; Masunari,Setuko. |
| A study on population structure of Aegla schmitti Hobbs III, 1979 was carried out at Mananciais da Serra, in the municipality of Piraquara, state of Paraná, Brazil (25º29'S, 48º58'W). The following aspects were treated: temporal fluctuation in abundance, sex ratio, reproductive period and size composition based on carapace length. The animals were colleted with traps, nets, measured and returned to the reservoirs. This population was sampled monthly, in two reservoirs (Carvalho and Carvalhinho) constructed in the headwater streams with swift current and steep gradient, located on west side of Serra do Mar mountains, from November, 2004 to January, 2006. The water temperature varied from 11.0 (July, 2005) to 18.2ºC (March, 2007), dissolved oxygen from 7.0... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aeglid crab; Sex ratio; Temporal distribution. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702009000100004 |
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| Silva,Marília Pessoa; Hara,Marcos Ryotaro; Pinto-da-Rocha,Ricardo. |
| Fonckia Roewer, 1913 is revised and two new species are described in it: Fonckia contulmo sp. nov., from Monumento Nacional Contulmo, Araucanía, Chile, diagnosed mainly by the enlarged tubercles on the lateral margins of the dorsal scutum, between the median region of scutal area II and the posterior margin of the scutal area III; and Fonckia sosia sp. nov., from Parque Nacional Conguillio, Malleco, Chile, distinguished mainly by the absence of a dorso-basal apophysis on femur IV of the male and a spiniform, enlarged retroapical tubercle on tibia IV of the male. We propose the generic synonymy of Diconospelta Canals, 1934 under Fonckia Roewer, 1913, and the specific synonymy of D. vazferreirae Mello-Leitão, 1946 under F. processigera (Sørensen, 1902). We... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chile; Harvestmen; Neotropics; Systematic; Taxonomy. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702013000200014 |
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| Mello,Marco A. R.; Kalko,Elisabeth K. V.; Silva,Wesley R.. |
| Some bat species seem to be lunar phobic, i.e., they avoid flying in bright areas or during bright periods of the night; however, the evidence is still controversial. We think that part of this controversy comes from pooling data on bat captures and moonlight intensity according to broad categories, such as moon phases, which conceal the high variability among nights. Therefore, we used detailed, long-term field data on three phyllostomid bat species, in order to test the hypothesis of lunar phobia at two different time scales: 1) among nights, by pooling data of different nights according to moon phases and testing for differences in the distribution of captures; and 2) within a night, by analyzing the relationship between capturability and moonlight... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Activity; Behavior; Foraging; Lunar phobia; Mist netting. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702013000400005 |
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| Cáceres,Nilton C.; Hannibal,Wellington; Freitas,Dirceu R.; Silva,Edson L.; Roman,Cassiano; Casella,Janaina. |
| This paper examines the frequencies of mammal roadkill in two adjacent biogeographic ecoregions (Atlantic Forest and Cerrado) of Brazil. Mammals were recorded during a seven-year period and over 3,900 km of roads, in order to obtain data for frequencies of species in habitats (sites) and frequencies of species killed by cars on roads. Sites (n = 80) within ecoregions (Cerrado, n = 57; Atlantic Forest, n = 23) were searched for records of mammals. Species surveyed in the entire region totaled 33, belonging to nine orders and 16 families. In the Cerrado, 31 species were recorded in habitats; of these, 25 were found dead on roads. In the Atlantic Forest ecoregions, however, we found 21 species in habitats, 16 of which were also found dead on roads. There was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anteaters; Caviomorph rodents; Road mortality; Highway; Transitional vegetation. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000500007 |
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| Maciel,Aline S.; Garbelotto,Thereza de A.; Winter,Ingrid C.; Roell,Talita; Campos,Luiz A.. |
| The Neotropical Lincus Stål, 1867 includes 35 species, thirteen of which are known only from females. Several species are vectors of Phytomonas staheli McGhee & McGhee, 1979, a trypanosomatid parasitic in palm-trees in South America that causes hart-rot, sudden and slow wilt diseases. The hitherto unknown males of L. singularis Rolston, 1983 ("swollen head" species group found in the oil palm Elaeis guineensis Jacq.), and L. incisus Rolston, 1983 ("hatchet-lobed" species group; found in the coconut tree Cocos nucifera L.), are described with emphasis on the morphology of the genitalia, and taxonomic remarks are provided. Males of L. singularis can be distinguished from other species included in "swollen head" group by their pronotal lobes with anterior... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Genitalia; Morphology; Ochlerini; Stink bugs; Taxonomy. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702015000200157 |
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| Seixas,Samantha A.; Amato,José F. R.; Amato,Suzana B.. |
| The impact of the discovery of Temnocephala haswelli Ponce de Léon, 1989, described as ectosymbionts of ampullariid apple snails outside of Uruguay, motivated us to collect a large number of specimens of Pomacea canaliculata (Lamarck, 1822) from several localities in the southern portion of the state of Rio Grande do Sul. This species was recorded three times after its description: in a study of chromosomes, in a study about the ultrastructure of the collar receptor cells, and in a study of the Haswell glands, all conducted in Uruguay. A total of 301 specimens of P. canaliculata were collected from 1999 to 2007. Temnocephalans found in the pallial cavity were identified as T. haswelli, which occurred in single infestations or concurrently with Temnocephala... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ectocommensals; Mollusks; Neotropical Region; South America; Taxonomy. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000300020 |
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| Borges,Sérgio Henrique; Whittaker,Andrew; Almeida,Ricardo Afonso Machado de. |
| We inventoried the birds from Serra do Aracá region, state of Amazonas. The region encompasses a high diversity of vegetation types, including white sand forests and campinas, terra firme and flooded forests, montane forests and tepuis. We recorded 416 bird taxa in 69 families through captures with mist nets, tape recording of bird voices, and collection of voucher specimens. A large proportion of them (61%) were recorded in a single vegetation type. Qualitative estimates suggest that approximately 580 bird species occur in the region. The avifauna of the Aracá region has a mixed biogeographic composition, with species typical of both margins of the Rio Negro occurring sympatrically. Additionally, species whose distributions are restricted to three areas... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amazon biodiversity; Amazonas; Rio Branco; Rio Negro; Tepuis; White sand campinas. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702014000400006 |
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| Pinto-da-Rocha,Ricardo; Andrade,Renata; Moreno-González,Jairo A.. |
| ABSTRACT Two new genera of short-tailed whip-scorpions are described based on material from Brazilian iron ore and canga caves in the Carajás region, Pará, Brazil. Naderiore gen. nov. with a single species N. carajas sp. nov. and also monotypic Cangazomus gen. nov. (type species C. xikrin sp. nov.). The relationships of the two new genera with previously described genera are discussed. Naderiore most closely resembles Adisomus Cokendolpher & Reddell, 2000, Piaroa Villarreal, Tourinho & Giupponi, 2008 and Calima Moreno-González & Villarreal, 2012, and can be distinguished from them by Dm3 modified as macrosetae in the male flagellum. Cangazomus most closely resembles Naderiore , Adisomus Cokendolpher & Reddell, 2000, and Piaroa Villarreal,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Canga cave; Cangazomus; Iron ore cave; Naderiore; Neotropics; Taxonomy. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702016000203001 |
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| Garda,Adrian A.; Medeiros,Pedro H.S. de; Lion,Marília B.; Brito,Marcos R.M. de; Vieira,Gustavo H.C.; Mesquita,Daniel O.. |
| Life history parameters such as diet, reproduction, and sexual dimorphism are crucial to understand ecological and evolutionary forces shaping species traits. Nevertheless, such information is scant in the literature for most Neotropical squamates. Gymnophthalmidae contains over 242 species in 46 genera and includes small-size, mostly terrestrial species, although psamophilic, semi-aquatic, and low vegetation dwellers also occur. Dryadosaura is a monospecific genus - Dryadosaura nordestina Rodrigues et al., 2005 - , occurring in Atlantic Forest areas from Rio Grande do Norte to Northern Bahia, and little is known about its ecology and natural history. We analyzed the species' diet, reproduction, and sexual dimorphism based on 170 specimens deposited in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diet; Ecology; Lizard; Reproduction; Sexual dimorphism. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702014000500002 |
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| Notini,Alice A.; Farias,Talita O.; Talamoni,Sônia A.; Godinho,Hugo P.. |
| The large fruit-eating phyllostomid bat, Artibeus lituratus (Olfers, 1818), forearm 69-75 mm, body mass 66-82 g, has a diversified geographic distribution in the Neotropical region. Therefore it is subjected to different climatic conditions that affect its reproduction, leading to different reproductive strategies such as continuous reproduction, seasonal monoestry or seasonal bimodal polyestry. In this study we used morphometric and histological methods to analyze the annual reproductive activity of A. lituratus males in a population living in the Atlantic Forest, Southeastern Brazil. Testis mass, epididymis mass, gonadosomatic index, seminiferous tubule diameter, and Leydig cell nucleus diameter showed no significant differences (p > 0.05) in the two... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Morphometry; Neotropical bat; Seminiferous epithelium; Spermatogenesis; Reproduction. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702015000300195 |
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| Pontes,Rafael; Mattedi,Camila; Baêta,Délio. |
| The Scinax perpusillus species group consists of thirteen bromeligenous treefrogs, of which only six have had their acoustic parameters appropriately described. In this work, we present the vocal repertory of Scinax littoreus (Peixoto, 1988) based on recordings obtained from three different populations in the state of Rio de Janeiro, Brazil. Based on our observations we suggest that the vocal repertory of S. littoreus is composed of two distinct types of calls. The call named type A, which corresponds to a long series of multipulsed notes, is likely to have a mating function. This type of call is similar to that reported for Scinax arduous Peixoto, 2002, Scinax peixotoi Brasileiro, Haddad, Sawaya & Martins, 2007, and Scinax perpusillus (Lutz... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aggressive call; Bioacoustics; Bromeligenous; Geographic distribution; Territorial call. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702013000400001 |
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| Nunes-Silva,Aline; Lima-Keppe,Isabela de; Souza,Robson V. de; Perbiche-Neves,Gilmar. |
| ABSTRACT Copepods have been successfully used in many countries for the biological control of larvae of mosquitoes that vector diseases. In Brazil, this line of research has been focused on the use of the copepod Mesocyclops longisetus (Thiébaud, 1914) for the biological control of the mosquito Aedes aegypti (Linnaeus, 1792). The transportation of the copepods from the place where they are reared to where they will be used often involves long distances for extended periods of time. This study assesses the survivorship of M. longisetus during simulation of transport under different conditions. Different loading densities (20, 30, 40, 80, and 120 ind.L) and stirring times (30 minutes, one hour, two hours, and four hours) were tested. Survivorship was high,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aedes aegypti; Copepoda; Culicidae; Density. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702020000100309 |
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| Jorge,Jaqueiuto S.; Sales,Raul F.D.; Santos,Roberto L.; Freire,Eliza M.X.. |
| ABSTRACT Bromeliads are important habitats for reptiles and amphibians, and are constantly used as shelter, refuge, foraging or thermoregulation sites due to their foliar architecture, which allows for constant maintenance of humidity and temperature. This study aimed to identify the herpetofauna inhabiting the non-phytotelmata rupicolous bromeliad Encholirium spectabile Mart. ex Schult. & Schult.f. and to analyze the microhabitat usage of these bromeliads by different species in the Caatinga of northeastern Brazil. From January 2011 to August 2012, we collected data by active search throughout three paralel transects in a rock outcrop in the municipality of Santa Maria, state of Rio Grande do Norte. We recorded four species of anuran amphibians, six... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amphibians; Associated fauna; Bromeliaceae; Habitat use; Reptiles. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702020000100310 |
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| Sakakibara,Albino M.. |
| The tribe Talipedini Deitz is redefined and its boundaries are expanded with the inclusion of the following taxa: Erechtia Walker, 1858 (formerly placed in Membracini), Pseuderechtia gen. nov. (type species: Leioscyta neivai Fonseca, 1941), and Talipes Deitz, 1975 gen. reval. (formerly junior synonym of Trinarea Goding, 1926, the latter herein considered new synonym of Erechtia). Along with these taxonomic rearrangements, some nomenclatural changes are also introduced. The species treated in this paper are: Erechtia gibbosa (DeGeer, 1773), E. carinata (Funkhouser, 1922) comb. nov., E. cristalta sp. nov. (type locality: French Guyana, Saül), E. diminuta sp. nov. (type locality: Brazil, Pará, Marituba), E. elongatula sp. nov. (type locality: French Guyana,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Auchenorrhyncha; Homoptera; Nomenclature; Taxonomy; Treehoppers. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702012000600008 |
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| Registros recuperados: 884 | |
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