scholarly journals Seasonal abundance of equine strongyles (Nematoda: Strongylidae) in the State of Rio de Janeiro, Brazil

2005 ◽  
Vol 57 (1) ◽  
pp. 43-47 ◽  
Author(s):  
I.V.F. Martins ◽  
M.J.S. Pereira ◽  
L. Grisi ◽  
F.B. Scott
Keyword(s):  
Small Intestine ◽  
Rainy Season ◽  
Mesenteric Artery ◽  
Rio De Janeiro ◽  
Dry Season ◽  
The State ◽  
Equal Length ◽  
Seasonal Abundance ◽  
Strongylus Vulgaris ◽  
Colon And Rectum

The seasonal abundance of lumenal and larval forms of equine strongyles in the State of Rio de Janeiro, Brazil was evaluated. Thirty horses referred to the Federal Rural University of Rio de Janeiro were necropsied and their gastrointestinal tracts were separated into stomach, small intestine, cecum, ventral colon, dorsal colon and rectum. Two aliquots of 5% of the content were collected and examined for the presence of small strongyles and the rest of the content was examined for the presence of large strongyles. The mesenteric artery, liver, pancreas and peritoneum were examined for the presence of strongyle larvae. The mucosa of intestine segments was cut into parts of equal length, and each one was examined by the mural transillumination technique. Higher abundances of larvae of Strongylus equinus (P<0.10) and of adults Strongylus vulgaris (P<0.05) were observed during the dry season. Encysted cyathostome larvae had the highest abundance during the rainy season (P<0.02).

scholarly journals An unusual case of colon vascularization by the inferior mesenteric artery

2017 ◽  
Vol 16 (1) ◽  
pp. 52-55 ◽  
Author(s):  
Serghei Covanțev ◽  
Natalia Mazuruc ◽  
Olga Belic
Keyword(s):  
Small Intestine ◽  
Superior Mesenteric Artery ◽  
Sigmoid Colon ◽  
Rare Variant ◽  
Mesenteric Artery ◽  
Inferior Mesenteric Artery ◽  
Unusual Case ◽  
Human Anatomy ◽  
Colon And Rectum ◽  
University Department

Abstract In this article we present a rare variant in which the large intestine was vascularized by the inferior mesenteric artery. It was encountered during macro and microscopic dissection of the cadaver of a 63-year-old woman at a university department of human anatomy. In this case, the ascending, transverse, descending, and sigmoid colon and rectum were vascularized by the inferior mesenteric artery, whereas the small intestine, cecum and appendix were supplied by the superior mesenteric artery.

scholarly journals Diversity and habitat preference of aquatic insects along the longitudinal gradient of the Macaé River basin, Rio de Janeiro, Brazil

2001 ◽  
Vol 61 (2) ◽  
pp. 249-258 ◽  
Author(s):  
D. F. BAPTISTA ◽  
D. F. BUSS ◽  
L. F. M. DORVILLÉ ◽  
J. L. NESSIMIAN
Keyword(s):  
River Basin ◽  
Aquatic Insects ◽  
Habitat Preference ◽  
Rainy Season ◽  
Rio De Janeiro ◽  
Dry Season ◽  
Longitudinal Gradient ◽  
Order Stream ◽  
Surber Sampler ◽  
Janeiro State

Diversity and habitat preference of macroinvertebrates were studied in Macaé River basin, Rio de Janeiro State, Brazil, along its longitudinal gradient. We selected stream reaches corresponding to 1st, 2nd, 4th, 5th and 6th orders. A Surber sampler was used to collect four macroinvertebrates samples of each substrate (sand, litter in pool areas, stones, and litter in riffle areas) during the three sampling periods, defined based on the rain regime: April (end of the rainy season), July (dry season), and October (beginning of the rainy season). We identified 46,431 specimens corresponding to 117 taxa. Analysis of diversity numbers (both for family or genus level) indicated that all insect taxonomic orders had higher numbers on 2nd order stream reach, except for Ephemeroptera, on 4th order. However when considering morph-species taxonomic level, the higher diversity number occurred on 4th order stream. The highest richness and diversity numbers were found at the dry season. Considering habitat preference, both litter in pool areas and litter in riffle areas had the highest faunal richness.

scholarly journals Anurans of the Reserva Biológica do Parazinho, Municipality of Macapá, state of Amapá, eastern Amazon

Check List ◽  
2014 ◽  
Vol 10 (6) ◽  
pp. 1414 ◽  
Author(s):  
Ananda Silva Araújo ◽  
Carlos Eduardo Costa-Campos
Keyword(s):  
Protected Area ◽  
Rainy Season ◽  
Dry Season ◽  
The State ◽  
Accumulation Curves

We report a list of anurans from the Reserva Biológica do Parazinho (00°52′30″ N, 49°59′15″ W), a strictly protected area, part of the Bailique archipelago, in the municipality of Macapá, state of Amapá, Brazil. The study was carried out in September–October 2010 (dry season) and May–June 2011 (rainy season). We recorded 13 species of anurans, distributed among four families: Bufonidae (1), Hylidae (8), Leptodactylidae (3) and Pipidae (1). The accumulation curves did not stabilize, suggesting that the community was not completely sampled. This study provides the first information on anurans in insular areas of the state of Amapá, and highlights the importance of these areas for the conservation of anurans.

scholarly journals Fishes from lakes and tributaries of the Rio Santa Bárbara, Sapucaí‑Mirim/Grande hydrographic basin, São Paulo, Brazil

Check List ◽  
2019 ◽  
Vol 15 (4) ◽  
pp. 629-640
Author(s):  
Paulo Baltazar Diniz ◽  
Hatus de Oliveira Siqueira ◽  
Tâmer de Oliveira Faleiros ◽  
Nycolas Levy Pereira ◽  
José Augusto Senhorini ◽  
...  
Keyword(s):  
Rainy Season ◽  
Dry Season ◽  
The State ◽  
Critically Endangered ◽  
Human Intervention ◽  
Santa Barbara ◽  
Hydrographic Basin ◽  
The Past ◽  
The Family ◽  
Small Tributary

Rio Santa Bárbara, a small tributary of the Rio Sapucaí-Mirim, has undergone severe human intervention over the past 80 years. We surveyed the ichthyofauna of this river, some surrounding lakes, and the Rio Potreiro, a tributary. Four campaigns were carried out, 2 in the dry season and 2 in the rainy season. We found 920 specimens at 12 sites and included 32 species belonging to 6 orders and 16 families. The order Characiformes was found to be best represented in our study, followed by the orders Cichliformes and Siluriformes. The family Characidae was the most numerous, followed by the families Cichlidae and Poeciliidae. A specimen of Brycon nattereri was collected from the Rio Santa Bárbara; this species is Critically Endangered in the state of São Paulo.

Biodiversity of Hematophagous Diptera (Culicidae and Psychodidae) in a Small Hydroelectric Power Station and Surrounding Area in the State of Minas Gerais, Brazil

2019 ◽  
Vol 57 (1) ◽  
pp. 312-317
Author(s):  
Felipe Dutra Rêgo ◽  
Maria Angélica de Oliveira ◽  
Gustavo Mayr de Lima Carvalho ◽  
José Dilermando Andrade Filho
Keyword(s):  
Rainy Season ◽  
Statistical Significance ◽  
Minas Gerais ◽  
Dry Season ◽  
The State ◽  
Hydropower Plant ◽  
Hydroelectric Power Station ◽  
Sand Flies ◽  
Hydroelectric Power ◽  
Power Station

Abstract Hydroelectric power stations may affect the population dynamics of mosquitoes and sand flies, a group with impact on public health due to the possibility to transmit pathogens to humans. This work characterized and compared the fauna of mosquitoes and sand flies in a hydroelectric power station and peridomicile areas in the State of Minas Gerais, Brazil. Insect collections were performed in August 2015 at dry season and February 2016 in rainy season. Ten HP light traps were set at each of two sites for three consecutive days in each of two seasons (dry and rainy). Furthermore, collections with Shannon traps were made in each sampling area (hydropower plant and peridomicile area) from 4:00 p.m. being shut down at 8:00 p.m. for two consecutive days in each of two seasons (dry and rainy). In total, 1,222 insects from 13 genera and 27 species were collected. The most plentiful species were respectively Culex declarator (Dyar and Knab, 1906) and Pintomyia pessoai (Coutinho & Barretto, 1940). A high number of insects (78.5%) were collected during the rainy period (P &lt; 0.05). About equitability, statistical significance was observed in the peridomicile area (dry season J = 0.75 and rainy season J = 0.82). The highest values of species diversity were observed in the hydropower plant (H = 2.68) and peridomicile area (H = 2.38) both in the rainy season with statistical significance comparing with dry season. Our results demonstrate that the occurrence of vector species in this region increases the potential risk of transmission of pathogens, especially arbovirus and Leishmania Ross, 1903.

Coleoptera in the Canopy of the Cloud Forest From Tlanchinol in the State of Hidalgo, Mexico

2019 ◽  
Vol 48 (4) ◽  
pp. 1012-1023 ◽  
Author(s):  
Juan Márquez ◽  
Julieta Asiain ◽  
Ana P Martínez-Falcón ◽  
Jaime A Escoto-Moreno
Keyword(s):  
Species Composition ◽  
Edge Effect ◽  
Rainy Season ◽  
Cloud Forest ◽  
Dry Season ◽  
The State ◽  
The Family ◽  
Internal Site ◽  
Study Zone ◽  
Species Richness And Abundance

AbstractWe describe the biodiversity, seasonal variation, and the possible edge effect of Coleoptera found in the canopy of the cloud forest in Tlanchinol in the state of Hidalgo. The coleopterans were collected by means of three fogging events during the dry season and another three during the rainy season in three sites of the forest: the edge, an intermediate, and an internal site. In total, 3,487 coleopterans were collected, belonging to 325 morphospecies from 52 families. The family with the largest number of morphospecies and abundance was Staphylinidae, followed by Curculionidae and Chrysomelidae. Species richness and abundance were higher in the dry season than in the rainy season. The biodiversity analyses, however, suggest that the rainy season showed the highest biodiversity levels, mainly because of the pronounced dominance of some species in the dry season. Species composition was different between the dry and rainy seasons. The internal site showed the lowest biodiversity compared with the intermediate and edge sites. The main edge effect detected was that species composition in the edge site differed from the intermediate and internal sites. Species composition did not differ significantly between the two latter sites. These results suggest that the study zone had a considerable level of biodiversity of Coleoptera and that it was very likely in a well-preserved condition, which supports the findings of another study previously performed in the same site using flight intercept traps.

scholarly journals Odonate Communities of the Sucupira Reservoir, Rio Uberabinha, Minas Gerais, Brazil

2019 ◽  
Vol 59 ◽  
pp. e20195922 ◽  
Author(s):  
Marcela Silva Barbosa ◽  
Lucas Rodrigues Borges ◽  
Diogo Silva Diogo ◽  
Henrique Venâncio ◽  
Jean Carlos Santos
Keyword(s):  
Species Composition ◽  
Rainy Season ◽  
New Records ◽  
Minas Gerais ◽  
Freshwater Ecosystems ◽  
Dry Season ◽  
The State ◽  
Anthropogenic Changes ◽  
Minas Gerais State ◽  
Dry And Rainy Seasons

Dragonflies and damselflies (Insecta: Odonata) are widely distributed among freshwater ecosystems of tropical and temperate environments. They are also particularly sensitive to anthropogenic changes. The objective of this study was to inventory the odonate fauna of a section of the Sucupira Reservoir on Rio Uberabinha, Uberlândia, Minas Gerais, Brazil, and to document the species composition of the odonate fauna during the dry and rainy seasons. The study also aimed to describe the distribution of the sampled species in Brazilian states. Sampling took place in August and September of 2017 (dry season) and in February and March of 2018 (rainy season), and recorded 860 individuals of 43 species belonging to 26 genera and six families. Six new records representing the families Gomphidae, Libellulidae and Coenagrionidae were recorded for the state of Minas Gerais. Seventeen species were collected only during the rainy season and eight only during the dry season, while 18 species were found in both seasons. The rainy season had greater abundance, with four times as many individuals as the dry season. This study increases the number of records for Odonata in the Minas Gerais state, and reinforces the trend for greater predominance of this group during the rainy season in this biome.

Endoparasites of three species of house geckoes in Lampung, Indonesia

2002 ◽  
Vol 76 (1) ◽  
pp. 53-57 ◽  
Author(s):  
K. Matsuo ◽  
Y. Oku
Keyword(s):  
Small Intestine ◽  
Rainy Season ◽  
Original Description ◽  
Dry Season ◽  
Intensity Of Infection ◽  
Male Dimorphism ◽  
Tropical Regions ◽  
Mean Intensity ◽  
Low Prevalence ◽  
Hemidactylus Frenatus

AbstractThirty-four house geckoes (21 Cosymbotus platyurus, four Gehyra mutilata and nine Hemidactylus frenatus) in December, 1997 (rainy season) and 26 geckos (16 C. platyurus, six G. mutilata and four H. frenatus) in July, 2000 (dry season) were captured in Lampung, Indonesia. Some species of geckoes have been inadvertently introduced to many tropical regions from their native region, but the three species of geckoes in this study are native to Indonesia. Six species of endoparasites were recovered: Oochoristica javanensis (Cestoda) from the small intestine, Paradistomum geckonum (Digenea) from the small intestine and gallbladder, Postorchigenes ovatus (Digenea) from the small intestine, Spauligodon hemidactylus (Nematoda) from the large intestine, and Raillietiella gehyra and R. frenatus (Pentastomida) from the lungs. The prevalence and mean intensity of infection in each species of geckoes are also presented. The prevalence of S. hemidactylus from C. platyurus and H. frenatus in the rainy season was significantly higher than in the dry season. The low prevalence of S. hemidactylus in G. mutilata in the present study corresponded to a previous report from a non-native area. According to the original description, the male of S. hemidactylus lacked a spicule, but in the present study, one male was found with a spicule. The present study suggests male dimorphism occurs in Spauligodon. The number of endoparasite species and snout vent length of geckoes were positively correlated. Geckoes with high worm burdens may be more easily captured by predators.

Synchronous celiac axis and superior mesenteric artery embolism

VASA ◽  
2011 ◽  
Vol 40 (6) ◽  
pp. 495-498 ◽  
Author(s):  
Rajkovic ◽  
Zelic ◽  
Papes ◽  
Cizmek ◽  
Arslani
Keyword(s):  
Atrial Fibrillation ◽  
Small Intestine ◽  
Abdominal Pain ◽  
Ct Scan ◽  
Superior Mesenteric Artery ◽  
Mesenteric Artery ◽  
Abdominal Cavity ◽  
Celiac Axis ◽  
Contrast Administration ◽  
Artery Embolism

We present a case of combined celiac axis and superior mesenteric artery embolism in a 70-year-old patient that was examined in emergency department for atrial fibrillation and diffuse abdominal pain. Standard abdominal x-ray showed air in the portal vein. CT scan with contrast showed air in the lumen of the stomach and small intestine, bowel distension with wall thickening, and a free gallstone in the abdominal cavity. Massive embolism of both celiac axis and superior mesenteric artery was seen after contrast administration. On laparotomy, complete necrosis of the liver, spleen, stomach and small intestine was found. Gallbladder was gangrenous and perforated, and the gallstone had migrated into the abdominal cavity. We found free air that crackled on palpation of the veins of the gastric surface. The patient’s condition was incurable and she died of multiple organ failure a few hours after surgery. Acute visceral thromboembolism should always be excluded first if a combination of atrial fibrillation and abdominal pain exists. Determining the serum levels of d-dimers and lactate, combined with CT scan with contrast administration can, in most cases, confirm the diagnosis and lead to faster surgical intervention. It is crucial to act early on clinical suspicion and not to wait for the development of hard evidence.

STUDY ON DIVERSITY AND DISTRIBUTION OF ANTS (HYMENOPTERA: FORMICIDAE) IN URBAN AND PERIURBAN AREAS OF AURANGABAD CITY, MAHARASHTRA, INDIA

2017 ◽  
Vol 23 (2) ◽  
Author(s):  
S. D. CHATE ◽  
R. J. CHAVAN
Keyword(s):  
Rainy Season ◽  
Winter Season ◽  
Seasonal Abundance ◽  
Urban Region ◽  
Ant Community ◽  
Community Variation

The present study deals with the ant community variation in and around Aurangabad city. During the study total 16 species of ants belonging to twelve genera and four subfamilies were reported in eight habitat from urban and periurban regions. Abundance of ants was more in peri-urban region as compared to urban region. Subfamily myrmicinae was more dominant as compared to other subfamilies. Seasonal abundance of ants was seen to be more in winter season and less in rainy season.

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