scholarly journals Testing capturing methods for the Yellow-legged Tinamou Crypturellus noctivagus (Wied, 1820) (Aves, Tinamidae) in southern Brazil

2018 ◽  
Vol 58 ◽  
pp. 7
Author(s):  
Luiz Liberato Costa Corrêa ◽  
Maria Virginia Petry

Specific and efficient methods for capturing tinamous are scarce in the scientific literature. Here we tested the effectivity of two methods for capturing the Yellow-legged Tinamou Crypturellus noctivagus (Tinamidae): a bell-trap adapted with a nylon cast net and a type of fall-trap. In a forest remnant in Rio Grande do Sul state, Brazil, we applied 120 hours of sampling effort using the traps, resulting in the capture of six individuals (two females and four males). These capture methods are an efficient tools and useful for forest tinamous studies, although it can be also used for capturing other forest bird which use the forest floor.

2012 ◽  
Vol 12 (3) ◽  
pp. 239-245 ◽  
Author(s):  
Daniel Paulo de Souza Pires ◽  
Cristina Vargas Cademartori

Knowledge about mammals of the Atlantic Forest is still lacking, especially because some places remain poorly studied or inventoried, which makes conservation initiatives difficult. We aimed to determine the species richness and composition of medium and large sized mammals in a semideciduous forest remnant, Morro do Coco, thus contributing information about the occurrence of mammalian fauna in the metropolitan region of Porto Alegre, southern Brazil. The methods consisted of interviews with local inhabitants, visual records and sand plot analysis. The study took place from July 2008 to April 2009, with monthly expeditions of three days. Sixteen species of mammals were recorded, seven of which are threatened with extinction in Rio Grande do Sul and one nationally. The predominant trophic group was the frugivorous/herbivorous. The study area is situated in a prioritized zone for the conservation of mammals in Greater Porto Alegre, since it consists of one of the last remnants where the phytophysionomies that originally occupied the edge of Guaiba Lake and granite hills of the region are represented and preserved.


FLORESTA ◽  
2010 ◽  
Vol 40 (1) ◽  
Author(s):  
Silvana Bernardi ◽  
Jean Carlos Budke

Tendo em vista a baixa disponibilidade de informações sobre a sinúsia epifítica vascular na região Sul do Brasil, o objetivo deste trabalho foi descrever a estrutura de epífitos vasculares considerando o efeito de borda em uma área de transição entre Floresta Estacional Semidecídua e Floresta Ombrófila Mista. O levantamento foi realizado em um remanescente de 60 ha na região norte do Rio Grande do Sul. Foram analisados 499 forófitos, com perímetro a 1,3 m do solo ³ 15 cm, em 40 unidades amostrais de 10×10 m, sendo 20 localizadas em área de borda e 20 no interior do remanescente. Os forófitos foram divididos em cinco estratos, para análise da distribuição vertical das espécies, e suas estruturas comunitárias foram comparadas através de análise de agrupamento. Foram coletados dados referentes à luminosidade, umidade relativa do ar e temperatura para cada unidade amostral. As espécies com maior frequência e dominância foram Peperomia trineuroides Dahlst., para a área de borda, e Lepismium cruciforme (Vell.) Miquel para a área de interior. As estimativas de umidade, temperatura e luminosidade diferiram (P < 0,001) entre as áreas de borda e interior, enquanto que diversidade e equabilidade não foram estatisticamente diferentes. Embora não tenham ocorrido diferenças estruturais entre borda e interior, houve variação estrutural ao longo do gradiente vertical da floresta. Palavras-chave: Estratificação vertical; forófito; luminosidade; remanescente florestal; Sul do Brasil.   Abstract Structure of vascular epiphytes communities and the edge-effect relationships in a transitional area of seasonal semideciduous forest and rain mixed forest. Due to the low amount of information about the structure of epiphytes in southern Brazil the aim of this work was to describe the phytosociological structure of vascular epiphytes and edge-effect relationships in a transitional remnant between semideciduous seasonal forest and rain mixed forest. The survey was conducted in a 60 ha forest remnant located at northern Rio Grande do Sul state. We analyzed 499 host-trees with perimeter at breast height ³ 15 cm distributed in 40 sampling units of 10×10 m (20 at the edge and 20 at inside the remnant). The host-trees were divided in five strata to analyze vertical distribution of epiphytes and their community structures were compared by cluster analysis. We also collected data from lightness, relative humidity and air temperature in each sampling unit. The most frequent and dominant species were Peperomia trineuroides Dahlst. at the edge and Lepismium cruciforme (Vell.) Miq. at the inside site. Diversity and equability at both sites were not statistically different, by other hand, light, relative humidity and air temperature were quite different (P < 0.001). There are not structural differences between edge and inside sites to the epiphyte community, although slight differences occurred across the vertical forest strata to epiphyte community.Keywords: Forest remnant; host-trees; lightness; southern Brazil; vertical strata.


2006 ◽  
Vol 96 (4) ◽  
pp. 473-477 ◽  
Author(s):  
Maurício P. Almerão ◽  
Milton de S. Mendonça Jr. ◽  
Aline F. Quadros ◽  
Ezequiel Pedó ◽  
Luiz G. R. Silva ◽  
...  

We analysed species abundance and composition during one year of sampling at Itapuã State Park, a conservation unit in the State of Rio Grande do Sul, southern Brazil. Samples were collected monthly from May 2003 to April 2004 along a 4 km forest trail divided in three transects along the slopes of a small hill. Terrestrial isopods were hand searched by three people for 40 minutes at two sampling sites along each transect, summing 240 minutes of sampling effort per transect per month. Six species distributed in six families were found. The collector curve stabilised when half the samples were taken, demonstrating sampling sufficiency: analytical estimates did not predict more species to be found in the trail. Atlantoscia floridana (van Name, 1940) was dominant in all transects. Abundance varied along the year with a summer and a winter peak, but peaks were not consistent among transects. The first part of the trail, used for ecotourism, was less diverse, had less species (4 as compared to 6 in the other transects), and was thus also less similar in composition.


2011 ◽  
Vol 101 (1-2) ◽  
pp. 115-120 ◽  
Author(s):  
Aline Barcellos ◽  
Letícia S Schmidt ◽  
Paulo Sergio F Ferreira

A two-year study was carried out to evaluate the composition, abundance and species richness of Miridae from Parque Estadual do Turvo, municipality of Derrubadas, state of Rio Grande do Sul, Brazil. Samplings were made in the springs of 2003 and 2004 (October), and autumns of 2004 and 2005 (May), using a beating tray method, along two trails of the park. Sampling effort (hours x collectors) in the quantitative collections totaled 153 hours. Two-hundred mirid specimens of 50 species were collected. The most abundant mirid was Prepops setosipes (Reuter, 1910), representing 23% of the collected individuals, followed by Collaria capixaba Carvalho & Fontes, 1981 (10.5%) and Tropidosteptes cribratus (Stål, 1860) (7%), the latter recorded in all sampling periods. The highest abundance was observed in the springs of 2003 and 2004, with 53 and 78 individuals, respectively. Rarefaction method showed that estimated species richness was higher in autumn/2004 than in the other sampling periods, and higher along Yucumã than in Garcia trail. Besides a higher species richeness, Yucumã had more exclusive species than Garcia trail. The percent of species represented by one or two specimens in quantitative samplings (singletons and doubletons) was 60%. Additional samplings including hand collection, random beating tray and light trap collections added 20 species not recorded in the quantitative samplings.


2019 ◽  
Vol 36 (2) ◽  
pp. 55-60 ◽  
Author(s):  
Vanessa da Silva Fay ◽  
Tatiana Schäffer Gregianini ◽  
Ana Beatriz Gorini da Veiga ◽  
Stela Maris Bottin Gonçalves ◽  
Diana Mara Rodrigues ◽  
...  

Author(s):  
Gratchela D. Rodrigues ◽  
Eduardo Blodorn ◽  
Ândrio Zafalon-Silva ◽  
William Domingues ◽  
Roberta Marques ◽  
...  

Author(s):  
Daniel Danilewicz ◽  
Eduardo R. Secchi ◽  
Paulo H. Ott ◽  
Ignacio B. Moreno ◽  
Manuela Bassoi ◽  
...  

The patterns of habitat use by the franciscana dolphins (Pontoporia blainvillei) along its distribution are poorly known. This study investigates the patterns of habitat use with respect to depth for 181 individuals of different age, size, gender and reproductive condition off Rio Grande do Sul, southern Brazil. The results reveal that franciscanas are very homogeneously distributed according to depth. Individuals from all lengths utilize nearly the entire range of depths of the surveyed area. Larger or older animals do not use deeper waters than younger animals, indicating that body size and age are not limiting factors for franciscanas that occupy deeper or offshore waters. Gestation seems to not cause a change in the distribution of females. Although the sex-ratio of the overall data did not vary from 1:1 in different depth intervals, a small-scale comparison between the northern and southern coast demonstrated the existence of some kind of sexual segregation. Franciscana by-catch in Rio Grande do Sul is not sustainable and it is agreed that management procedures are needed. Nevertheless, the available data on species distribution do not allow the designing of a protected area in order to minimize the by-catches of a particular sex/reproductive class.


Check List ◽  
2016 ◽  
Vol 12 (5) ◽  
pp. 1964
Author(s):  
Omar Machado Entiauspe-Neto ◽  
Tângela Denise Perleberg ◽  
Marco Antonio de Freitas

Faunistic inventories regarding natural history of amphibians and reptiles are considered scarce and very little is known about their assemblages in urban areas; the Pampas morphoclimatic domain, also known as Uruguayan Savannah or Southern Grasslands, is also poorly known regarding their faunal composition.  Herein, we present a checklist of 16 amphibian and 20 reptile species recorded over a course of four years in the Instituto Federal de Educação, Ciências e Tecnologia, Câmpus Pelotas-Visconde da Graça, in Pelotas, Rio Grande do Sul, Brazil. We also present data on natural history and discuss conservation efforts to be undertaken in the area, in one of the least preserved and known Brazilian morphoclimatic domains, providing insights into urban herpetofaunal diversity patterns and showing the importance of modified areas in its conservation.


2014 ◽  
Vol 74 (3) ◽  
pp. 656-658 ◽  
Author(s):  
VS Sturza ◽  
STB Dequech ◽  
M Toebe ◽  
TR Silveira ◽  
A Cargnelutti Filho ◽  
...  

Microtheca spp. (Coleoptera: Chrysomelidae) are insect pests primarily related to Brassicaceae crops. In the State of Rio Grande do Sul (RS), southern Brazil, they are found on forage turnip, Raphanus sativus L. var. oleiferus Metzg., which is commonly grown during fall/winter seasons. This work reports the predation of Microtheca spp. larvae by Toxomerus duplicatus Wiedemann, 1830 (Diptera: Syrphidae) larvae, on forage turnip crop, in Santa Maria, RS. This register provides new information about Microtheca spp. natural enemies in Brazil, which might be a new option for integrate pest management of these species.


2001 ◽  
Vol 61 (1) ◽  
pp. 55-61 ◽  
Author(s):  
A. L. V. ANDRADE ◽  
M. C. PINEDO ◽  
A. S. BARRETO

The gastrointestinal tract of 14 false killer whales, 6 males and 8 females, stranded in June 1995 in southern Brazil, with total standard lengths from 338 to 507 cm, were analysed for endoparasites and food items. A pregnant female had a male foetus of 77.5 cm. Parasites were found in all 14 false killer whales. The nematode Anisakis simplex (Rudolphi, 1809) was found in the stomach of 57% of the animals and the acanthocephalan Bolbosoma capitatum (Linstow, 1889) Porta, 1908 was present in the intestine of all specimens and showed densities up to 600 m-1. An unidentified cestode (Tethrabothridae) was found also in the intestines of 14% of the individuals. The high infections of B. capitatum and A. simplex were not directly related with the cause of death. In the stomachs of four females, beaks of at least eight specimens of the oceanic and epipelagic species Ommastrephes bartramii (Lesueur, 1821) were found, with mantle lengths ranging from 189.8 to 360.9 mm. The distribution of O. bartramii in the coast of Rio Grande do Sul is consistent with false killer whales feeding in continental shelf waters.


Sign in / Sign up

Export Citation Format

Share Document