scholarly journals Frugivory and seed dispersal of Solanum granuloso-leprosum Dunal (Solanaceae) by birds in deciduous seasonal forest

2016 ◽  
Vol 76 (4) ◽  
pp. 818-823 ◽  
Author(s):  
F. A. F. Jacomassa
Keyword(s):  
Deciduous Forest ◽  
Bird Species ◽  
Rio Grande ◽  
Rio Grande Do Sul ◽  
Forest Fragment ◽  
Fruit Removal ◽  
Feeding Behaviors ◽  
River Region ◽  
Strong Competition ◽  
Uruguay River

Abstract The goal of this study was to identify which bird species consume Solanum granuloso-leprosum fruits and disperse its seeds. 60 hours of focal observations were carried out between April and May 2006 on the edge of a deciduous forest fragment in the Uruguay River region, Rio Grande do Sul state, Brazil. Ten species were observed in total removing 443 fruits. Saltator similis removed 61.8% of the fruits, followed by Tangara sayaca (17.1%), Pipraeidea bonariensis (11.7%), and T. preciosa (6.8%), while the remaining six species accounted for only 2.5% of the fruits removed. Most fruit removal occurred early in the day or mid-afternoon. The most common feeding behaviors were picking (60.7%), followed by stalling (23%) and hovering (16%). Birds flew more than 10 m from the fruit plant in 62% of the removal events. All bird species observed here may be considered potential dispersers of S. granuloso-leprosum, as they moved the seeds away from the mother plant where strong competition and predation are likely to occur. Results also suggest that S. granuloso-leprosum may be useful in ecological restoration programs.

scholarly journals Feather mites (Acari, Astigmata) associated with birds in an Atlantic Forest fragment in Northeastern Brazil

2015 ◽  
Vol 75 (3) ◽  
pp. 726-735 ◽  
Author(s):  
HM Silva ◽  
FA Hernandes ◽  
M Pichorim
Keyword(s):  
Atlantic Forest ◽  
Bird Species ◽  
Rio Grande ◽  
Neotropical Region ◽  
Species Level ◽  
Northeastern Brazil ◽  
Forest Fragment ◽  
Visual Examination ◽  
Feather Mites ◽  
First Time

AbstractThe present study reports associations between feather mites (Astigmata) and birds in an Atlantic Forest fragment in Rio Grande do Norte state, in Brazil. In the laboratory, mites were collected through visual examination of freshly killed birds. Overall, 172 individuals from 38 bird species were examined, between October 2011 and July 2012. The prevalence of feather mites was 80.8%, corresponding to 139 infested individuals distributed into 30 species and 15 families of hosts. Fifteen feather mite taxa could be identified to the species level, sixteen to the genus level and three to the subfamily level, distributed into the families Analgidae, Proctophyllodidae, Psoroptoididae, Pteronyssidae, Xolalgidae, Trouessartiidae, Falculiferidae and Gabuciniidae. Hitherto unknown associations between feather mites and birds were recorded for eleven taxa identified to the species level, and nine taxa were recorded for the first time in Brazil. The number of new geographic records, as well as the hitherto unknown mite-host associations, supports the high estimates of diversity for feather mites of Brazil and show the need for research to increase knowledge of plumicole mites in the Neotropical region.

scholarly journals Diversity of Odonata (Insecta) in Seasonal Deciduous Forest fragments in southern Brazil (state of Rio Grande do Sul), with a new record for the state and comments on the seasonal distribution of the species

2019 ◽  
Vol 19 (4) ◽  
Author(s):  
Mateus Marques Pires ◽  
Carla Bender Kotzian ◽  
Cleber Sganzerla ◽  
Gabriel Prass ◽  
Marina Schmidt Dalzochio ◽  
...  
Keyword(s):  
Deciduous Forest ◽  
Rio Grande ◽  
Seasonal Distribution ◽  
The State ◽  
Seasonal Patterns ◽  
Forest Fragments ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Farm Ponds ◽  
First Occurrence

Abstract: We present an Odonata (Insecta) check list of species occurring in a fragment of the Seasonal Deciduous Forest (Atlantic Forest biome) from the central region of the state of Rio Grande do Sul (RS), southern Brazil, along with a list of the odonate species recorded in this phytoecological region for the state. In addition, we provide comments on the seasonal distribution of the species occurring in the study area. Two streams and seven farm ponds located in the middle course of the Jacuí River basin were surveyed between December 2007 and February 2009. Overall, we recorded 49 species from 21 genera and six families. Argia serva Hagen in Selys, 1865 (Coenagrionidade) had its first occurrence record mentioned for the state, elevating to 183 the total number of Odonata species occurring in Rio Grande do Sul. The number of species recorded in the study area corresponds to ~26% of the known Odonata diversity in RS. Libellulidae was the most species-rich family (22 species, ~45% of the total), followed by Coenagrionidae (18 species, 37% of the total). The checklist for the Seasonal Deciduous Forest in RS indicated the occurrence of 83 species of Odonata in this phytoecological region (~45% of the known odonate species in the state). This elevated diversity could be related to the density of the vegetation structure. In the study area, 20 species were found in streams, and 45 in farm ponds. Species occurrence showed marked seasonal patterns in the study area, with 88% of the species recorded from summer to autumn, and no species detected in streams in the winter. Moreover, 70% of the species were recorded in either one or two seasons in farm ponds, while 65% occurred solely in one season in streams. This result indicates that the life cycle of Odonata in southern Brazil is strongly influenced by seasonal patterns in temperature.

A new species and a new combination for the subfamily Cunaxinae (Acari: Cunaxidae)

2022 ◽  
Author(s):  
Wesley Borges Wurlitzer ◽  
Anderson De Azevedo Meira ◽  
Naiara Antonia Nunes Vinhas ◽  
Noeli Juarez Ferla
Keyword(s):  
New Species ◽  
Leaf Litter ◽  
Rio Grande ◽  
Atlantic Rainforest ◽  
New Combination ◽  
Rio Grande Do Sul ◽  
Forest Fragment ◽  
Rural Forest ◽  
Atlantic Rainforest Biome ◽  
A New Species

A new species of Cunaxidae, namely Cunaxa bagualensis Wurlitzer & Ferla sp. nov., is described and illustrated based on females and males collected in soil and leaf litter in the Atlantic rainforest biome in a rural forest fragment in Mormaço county, Rio Grande do Sul state, Brazil. Additionally, Armascirus livingstoni Laniecka & Kazmierski, 2021 is transferred to Dactyloscirus based on some observations.  

scholarly journals Quantitative fidelity of recent freshwater mollusk assemblages from the Touro Passo River, Rio Grande do Sul, Brazil

2006 ◽  
Vol 96 (4) ◽  
pp. 453-465 ◽  
Author(s):  
Alcemar R. Martello ◽  
Carla B. Kotzian ◽  
Marcello G. Simões
Keyword(s):  
Dominant Species ◽  
Rank Order ◽  
Rio Grande ◽  
Taxonomic Composition ◽  
Small Scale ◽  
Rio Grande Do Sul ◽  
Main River ◽  
Main River Channel ◽  
Structure Of Communities ◽  
Uruguay River

This study represents one of the first contributions to the knowledge on the quantitative fidelity of the recent freshwater molluscan assemblages in subtropical rivers. Thanatocoenoses and biocoenoses were studied in straight and meandering to braided sectors, in the middle course of the Touro Passo River, a fourth-order tributary of the Uruguay River, located in the westernmost part of the State of Rio Grande do Sul. Samplings were carried out through quadrats of 5 m², five in each sector. A total area of 50 m² was sampled. Samplings were also made in a lentic environment (abandoned meander), with intermittent communication with the Touro Passo River, aiming to record out-of-habitat shell transportation from the lentic communities to the main river channel. The results show that, despite the frequent oscillation of the water level, the biocoenosis of the Touro Passo River shows high ecological fidelity and undergoes little influence from the lentic vicinal environments. The taxonomic composition and some features of the structure of communities, especially the dominant species, also reflect some ecological differences between the two main sectors sampled, such as the complexity of habitats in the meandering-sector. Regarding the quantitative fidelity, 60% of the species found alive were also found dead and 47.3% of the species found dead were also found alive, at river-scale. However, 72% of the dead individuals belong to species also found alive. This value might be related with the good rank order correlation obtained for live/dead assemblages. Consequently, the dominant species of the thanatocoenoses could be used to infer the ecological attributes of the biocoenoses. The values of all the indexes analyzed were very variable in small-scale samplings (quadrat), but were more similar to others registered in previous studies, when they were analyzed in a station and river scale.

scholarly journals Conservation value of a native forest fragment in a region of extensive agriculture

2000 ◽  
Vol 60 (2) ◽  
pp. 237-247 ◽  
Author(s):  
A. G. CHIARELLO
Keyword(s):  
Deciduous Forest ◽  
Puma Concolor ◽  
Bird Species ◽  
Line Transect ◽  
Native Forest ◽  
Muscovy Duck ◽  
Forest Fragment ◽  
Isolated Populations ◽  
Mammal Species ◽  
Maned Wolf

A survey of mammals and birds was carried out in a semi-deciduous forest fragment of 150 ha located in a zone of intensive agriculture in Ribeirão Preto, State of São Paulo, south-eastern Brazil. Line transect sampling was used to census mammals and birds during six days, totalling 27.8 km of trails and 27.8 hours of observation. Twenty mammal species were confirmed in the area (except bats and small mammals), including rare or endangered species, such as the mountain lion (Puma concolor), the maned wolf (Chrysocyon brachyurus), and the ocelot (Leopardus pardalis). The brown capuchin monkey (Cebus apella) and the black-tufted-ear marmoset (Callithrix penicillata) were found frequently, suggesting high population density in the fragment. Regarding the avifauna, 49 bird species were recorded, most of them typical of open areas or forest edges. Some confirmed species, however, are becoming increasingly rare in the region, as for example the muscovy duck (Cairina moschata) and the toco toucan (Ramphastos toco). The results demonstrate that forest fragment of this size are refuges for native fauna in a region dominated almost exclusively by sugar-cane plantations. Besides faunal aspects, the conservation of these fragments is of great importance for the establishment of studies related to species preservation in the long term, including reintroduction and translocation projects, as well as studies related to genetic health of isolated populations.

Aegla manuinflata, a new species of freshwater anomuran (Decapoda: Anomura: Aeglidae) from Brazil, determined by morphological and molecular characters

Zootaxa ◽  
2009 ◽  
Vol 2088 (1) ◽  
pp. 31-40 ◽  
Author(s):  
SANDRO SANTOS ◽  
GEORGINA BOND-BUCKUP ◽  
MARCOS PÉREZ-LOSADA ◽  
MARLISE LADVOCAT BARTHOLOMEI-SANTOS ◽  
LUDWIG BUCKUP
Keyword(s):  
New Species ◽  
Central Region ◽  
Mitochondrial Gene ◽  
Rio Grande ◽  
Sister Group ◽  
Rio Grande Do Sul ◽  
High Degree ◽  
Uruguay River ◽  
A New Species ◽  
Molecular Characters

A new species of freshwater anomuran, Aegla manuinflata n. sp. (Decapoda: Anomura: Aeglidae), is described from the Ibicuí River basin, a tributary of the Uruguay River, from the central region of the state of Rio Grande do Sul, Brazil. It can be distinguished from its congeners based on both morphological and molecular (mitochondrial gene — COII) evidence. Morphologically, the new species partly resembles A. inermis and A. uruguayana, but differs in having an inflated cheliped propodus and more elongated dactyls, besides other features. Our molecular results showed a high degree of genetic divergence between A. manuinflata and its sister group (composed of A. singularis, A. uruguayana, A. rossiana and A. platensis), an indication of species distinctness within the Aeglidae.

scholarly journals New records of chewing lice (Insecta, Phthiraptera) from birds of southern Brazil, with description of a new species

2009 ◽  
Vol 99 (3) ◽  
pp. 249-258 ◽  
Author(s):  
Michel P. Valim ◽  
Francine M. Lambrecht ◽  
Élvia E. S. Vianna
Keyword(s):  
New Species ◽  
New Records ◽  
Bird Species ◽  
Rio Grande ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
History Museum ◽  
Chewing Lice ◽  
Three Samples ◽  
A New Species

A collection of chewing lice was studied from the Natural History Museum of the Universidade Católica de Pelotas, Rio Grande do Sul, Brazil. Twenty three samples from 16 bird species were examined. Included therein was a new species of the genus Plegadiphilus Bedford, 1939 which is described, illustrated and compared to P. cayennensis Emerson & Price, 1969. An updated list of chewing lice species recorded from birds of that state is presented.

scholarly journals CARACTERIZAÇÃO FLORÍSTICA E ESTRUTURAL DE UM FRAGMENTO FLORESTAL NA REGIÃO CENTRAL DO RIO GRANDE DO SUL

Nativa ◽  
2018 ◽  
Vol 6 (1) ◽  
pp. 73 ◽  
Author(s):  
Roselene Marostega Felker ◽  
Ana Paula Moreira Rovedder ◽  
Maureen De Moares Stefanello ◽  
Rafaela Badinelli Hummel ◽  
Bruna Balestrin Piaia ◽  
...  
Keyword(s):  
Central Region ◽  
Rio Grande ◽  
Rio Grande Do Sul ◽  
Forest Fragment ◽  
Horizontal Structure ◽  
History Of ◽  
Advanced Stages ◽  
Restoration Strategies ◽  
Structure Density ◽  
Definition Of

O conhecimento da estrutura e composição de espécies florestais, juntamente com o entendimento da formação de grupos florísticos é um importante subsídio para a definição de estratégias de conservação e restauração florestal. O presente estudo analisou a estrutura, diversidade e agrupamentos florísticos de um fragmento florestal com histórico de degradação no Parque Estadual Quarta Colônia, região central do Rio Grande do Sul. Em 2012, foram avaliados os indivíduos arbóreos com CAP ≥ 15 cm, em 16 parcelas de 10 x 10 m. Para análise da estrutura florística foram calculados densidade e frequência em dados absolutos, diversidade Shannon (H’) e equabilidade de Pielou (J). A caracterização da vegetação foi realizada através da análise de agrupamento, pelo método Twinspan. O fragmento apresentou grupos em estágios iniciais e avançados de sucessão. Dentre as espécies levantadas Escallonia bifida se destacou como indicadora na formação dos grupos florísticos de áreas abertas. Os altos valores de densidade e frequência da espécie, também a caracterizam como a mais importante na estrutura horizontal do fragmento florestal, demonstrando potencial para utilização em ações de restauração.Palavra-chave: grupos florísticos; Escallonia bifida; sucessão ecológica. FLORISTIC AND STRUCTURAL CHARACTERIZATION OF A FOREST FRAGMENT IN THE CENTRAL REGION OF RIO GRANDE DO SUL STATE ABSTRACT:The knowledge of the structure and composition of forest species together with the understanding of the formation of floristic groups is an important subsidy for the definition of conservation and restoration strategies. The present study analyzed the structure, diversity and floristic clusters of a forest fragment with a history of degradation, in the State Park Quarta Colônia, central region of Rio Grande do Sul. In 2012, tree individuals with CBH ≥ 15 cm were evaluated in 16 plots of 10x10 m. For analysis of the floristic structure density and frequency were calculated in absolute data, Shannon diversity (H ') and Pielou equability (J). The vegetation characterization was performed through the cluster analysis, using the Twinspan method. The fragment presented groups in the early and advanced stages of succession. Among the raised species Escallonia bifida was highlighted as an indicator in the formation of floristic groups of open areas. The high values of density and frequency of the species also characterize it as the most important in the horizontal structure of the forest fragment, demonstrating potential for use in restoration actions.Keywords: Floristic groups, Escallonia bifida, ecological succession. DOI:

scholarly journals Aves, Apodidae, Cypseloides senex (Temminck, 1826): geographical distribution in the state of Rio Grande do Sul, southern Brazil

Check List ◽  
2011 ◽  
Vol 7 (4) ◽  
pp. 473 ◽  
Author(s):  
Samuel Lopes Oliveira
Keyword(s):  
Geographical Distribution ◽  
Rio Grande ◽  
The State ◽  
Museum Collections ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
The Status ◽  
New Localities ◽  
Uruguay River

The Great Dusky Swift Cypseloides senex occurs mainly in Argentina, Bolivia and Brazil. Little is known about the status of this species in the state of Rio Grande do Sul, Brazil. To fill this gap, several ornithologists and museum collections were consulted for records. This paper presents records for nine new localities in the state of Rio Grande do Sul. Cypseloides senex occurs along the central and northeast portions of the Planalto escarpment and the upper valley of the Uruguay River. 

scholarly journals Butterflies (Lepidoptera: Hesperioidea and Papilionoidea) of Porto Mauá, Upper Paraná Atlantic Forest Ecoregion, Rio Grande do Sul State, Brazil

2014 ◽  
Vol 14 (2) ◽  
Author(s):  
Sabrina Campos Thiele ◽  
Oscar Milcharek ◽  
Fábio Luis dos Santos ◽  
Lucas Augusto Kaminski
Keyword(s):  
Atlantic Forest ◽  
Deciduous Forest ◽  
Rio Grande ◽  
Sampling Effort ◽  
Rio Grande Do Sul ◽  
Species Accumulation Curves ◽  
Ecological Corridor ◽  
Butterfly Fauna ◽  
Accumulation Curves ◽  
Upper Paraná Atlantic Forest

This paper presents a list of species of butterflies (Lepidoptera: Hesperioidea and Papilionoidea) sampled in Porto Mauá municipality (27°34’S, 28°40’W), Rio Grande do Sul State, Brazil. Sampling was carried out monthly between March 2008 and March 2009. After 204 net-hours of sampling effort, a total of 1,993 individuals from 253 species were recorded. With a single additional expedition, eight new species were added, reaching a total of 261 species recorded in the region of Porto Mauá. These new reports and the species accumulation curves may indicate a much richer fauna. The distribution of richness among butterfly families is compared with other inventories in seasonal semi-deciduous forest areas in the Atlantic Forest. We also discuss the importance of riparian forests of the Uruguay River as an ecological corridor that enables the maintenance of the butterfly fauna on the southern edge of the Upper Paraná Atlantic Forest Ecoregion.

Sign in / Sign up

Export Citation Format

Share Document