scholarly journals Comparison of the diet of Alouatta caraya (Primates: Atelidae) between a riparian island and mainland on the Upper Parana River, southern Brazil

2008 ◽  
Vol 25 (3) ◽  
pp. 419-426 ◽  
Author(s):  
Gabriela Ludwig ◽  
Lucas M. Aguiar ◽  
Walfrido K. Svoboda ◽  
Carmen L. S. Hilst ◽  
Italmar T. Navarro ◽  
...  
Keyword(s):  
Sampling Method ◽  
Riparian Forest ◽  
Diet Breadth ◽  
Paraná River ◽  
Food Type ◽  
Left Bank ◽  
Southern Brazil ◽  
Alouatta Caraya ◽  
Parana River ◽  
Upper Paraná River

Howler monkeys (Alouatta Lacèpéde, 1799) are folivores-frugivores with flexible diets depending on conditions. Here, we compare the diets of Alouatta caraya (Humboldt, 1812) in two riparian forests (island and mainland), in Porto Rico region, Upper Paraná River, Southern Brazil. Howlers were followed from October 2004 to September 2005 in the riparian forest of a 1,050 ha island and in the continuous riparian forest on the mainland (left bank of the river). The "scan sampling" method with instantaneous samples every 15 minutes was used. Besides vines, diet breadth was similar: 17 species consumed on the island versus 16 species on the mainland. Both consumed leaves followed by fruits more than any other food type (leaves: island - 65%, mainland - 49%, fruits: island - 24%, mainland - 46%). Even though the plant Cecropia pachystachya Trécul is less abundant in the mainland it was the item most consumed in both locations all year long, which suggests its importance for the howlers. Diet also varied both seasonally and between the island and mainland, apparently following changes in local abundance of each item and due to plant phenologies.

Use of traps to capture black and gold howlers (Alouatta caraya) on the Islands of the upper paraná river, Southern Brazil

2007 ◽  
Vol 69 (2) ◽  
pp. 241-247 ◽  
Author(s):  
Lucas M. Aguiar ◽  
Gabriela Ludwig ◽  
Walfrido K. Svoboda ◽  
Gustavo M. Teixeira ◽  
Carmen L.S. Hilst ◽  
...  
Keyword(s):  
Paraná River ◽  
Southern Brazil ◽  
Alouatta Caraya ◽  
Parana River ◽  
Upper Paraná River

scholarly journals Species richness and abundance of bats in fragments of the stational semidecidual forest, Upper Paraná River, southern Brazil

2009 ◽  
Vol 69 (2 suppl) ◽  
pp. 727-734 ◽  
Author(s):  
H. Ortêncio-Filho ◽  
NR. Reis
Keyword(s):  
Species Richness ◽  
Anthropogenic Impacts ◽  
Paraná River ◽  
Forest Fragments ◽  
Southern Brazil ◽  
Parana River ◽  
Upper Paraná River Floodplain ◽  
Upper Paraná River ◽  
Species Richness And Abundance ◽  
Artibeus Lituratus

The Upper Paraná River floodplain is inserted in a region of the Mata Atlântica biome, which is a critical area to preserve. Due to the scarcity of researches about the chiropterofauna in this region, the present study investigated species richness and abundance of bats in remnants from the stational semidecidual forest of the Upper Paraná River, southern Brazil. Samplings were taken every month, from January to December 2006, using 32 mist nets with 8.0 x 2.5 m, resulting in 640 m²/h and totaling a capture effort of 87,040 m²/h. In order to estimate the species richness, the following estimators were employed Chao1 and Jack2. During the study, a total of 563 individuals belonging to 17 species (Artibeus planirostris, Artibeus lituratus, Carollia perspicillata, Platyrrhinus lineatus, Sturnira lilium, Artibeus fimbriatus, Myotis nigricans, Desmodus rotundus, Artibeus obscurus, Noctilio albiventris, Phylostomus discolor, Phylostomus hastatus, Chrotopterus auritus, Lasiurus ega, Chiroderma villosum, Pygoderma bilabiatum and Lasiurus blossevillii) were captured. The estimated richness curves tended to stabilize, indicating that most of the species were sampled. Captured species represented 10% of the taxa recorded in Brazil and 28% in Paraná State, revealing the importance of this area for the diversity of bats. These findings indicate the need to determine actions aiming to restrict human activities in these forest fragments, in order to minimize anthropogenic impacts on the chiropterofauna.

Ichthyofauna of the Água das Araras stream, Paranapanema River basin, upper Paraná River system, Southern Brazil

2021 ◽  
pp. 1-15
Author(s):  
Bruno A. Galindo ◽  
Alexandro D. A. Costa ◽  
Dhiego G. Ferreira ◽  
Thiago D. Garcia ◽  
Augusto Frota ◽  
...  
Keyword(s):  
River Basin ◽  
River System ◽  
Paraná River ◽  
Southern Brazil ◽  
Parana River ◽  
Upper Paraná River

scholarly journals Time and seasonal patterns of activity of phyllostomid in fragments of a stational semidecidual forest from the Upper Paraná River, Southern Brazil

2010 ◽  
Vol 70 (4) ◽  
pp. 937-945 ◽  
Author(s):  
H. Ortêncio Filho ◽  
NR. Reis ◽  
CV. Minte-Vera
Keyword(s):  
Linear Models ◽  
Seasonal Pattern ◽  
Information Criterion ◽  
Paraná River ◽  
Seasonal Patterns ◽  
Southern Brazil ◽  
Activity Increase ◽  
Time Pattern ◽  
Parana River ◽  
Upper Paraná River

Bats may exhibit different patterns of activity, considering aspects concerning niche dynamics as well as the establishment and permanence of the communities in the ecosystems. In this way, the present study analyzed the time and seasonal patterns of activity in different species of frequent phyllostomid bats in remnants of the stational semidecidual forest from the Upper Paraná River, Southern Brazil. Captures were performed between January and December, 2006, using 32 mist nets set above the soil along the nocturnal period during the four seasons of the year. The daily and seasonal patterns of activity of each species was modeled using generalized linear models with Poisson error. The best model was selected using Akaike's Information Criterion (AICc). Artibeus planirostris (Spix, 1823) did not exhibit a conspicuous time pattern, whereas A. lituratus (Olfers, 1818) was more frequent after the sixth hour and A. fimbriatus Gray, 1838 had an activity increase along the night. Platyrrhinus lineatus (E. Geoffroy, 1810) was registered during all sampling hours. Carollia perspicillata (Linnaeus, 1758) and Sturnira lilium (E. Geoffroy, 1810) were the most active during the first four hours. Concerning seasonal pattern, the highest activity of these species was verified during the summer. These data contribute to the information about the ecology of bats in the region, highlighting the high adaptive potential of the species studied in relation to the use of space throughout the night and in to variations in environmental conditions.

scholarly journals Howler and Capuchin Monkey Densities in Riparian Forests on Islands and Adjacent Shores on the Upper Paraná River, Southern Brazil

2011 ◽  
Vol 18 (2) ◽  
pp. 39-43 ◽  
Author(s):  
Lucas M. Aguiar ◽  
Gabriela Ludwig ◽  
James J. Roper ◽  
Walfrido K. Svoboda ◽  
Italmar T. Navarro ◽  
...  
Keyword(s):  
Paraná River ◽  
Riparian Forests ◽  
Capuchin Monkey ◽  
Southern Brazil ◽  
Parana River ◽  
Upper Paraná River

scholarly journals Flower morphology, nectar features, and hummingbird visitation to Palicourea crocea (Rubiaceae) in the Upper Paraná River floodplain, Brazil

2006 ◽  
Vol 78 (1) ◽  
pp. 45-57 ◽  
Author(s):  
Luciana B. Mendonça ◽  
Luiz dos Anjos
Keyword(s):  
Riparian Forest ◽  
Paraná River ◽  
Flower Morphology ◽  
Forest Understory ◽  
River Floodplain ◽  
Parana River ◽  
Anther Length ◽  
Upper Paraná River Floodplain ◽  
Upper Paraná River ◽  
Paraná River Floodplain

We investigated flower morphology, nectar features, and hummingbird visitation to Palicourea crocea (Rubiaceae), a common ornithophilous shrub found in the riparian forest understory in the Upper Paraná River floodplain, Brazil. Flowers are distylous and the style-stamen dimorphism is accompanied by other intermorph dimorphisms in corolla length, anther length, and stigma lobe length and form. We did not observe strict reciprocity in the positioning of stigma and anthers between floral morphs. Flowering occurred during the rainy season, October to December. Nectar standing crop per flowerwas relatively constant throughout the day, which apparently resulted in hummingbirds visiting the plant throughout the day. Energetic content of the nectar in each flower (66.5J) and that required daily by hummingbird visitors (up to 30kJ) would oblige visits to hundreds of flowers each day, and thus movements between plants that should result in pollen flow. Three hummingbird species visited the flowers: the Gilded Sapphire (Hylocharis chrysura), the Black-throated Mango (Anthracothorax nigricollis), and the Glittering-bellied Emerald (Chlorostilbon aureoventris). The frequency of hummingbird visitation, nectar features, and the scarcity of other hummingbird-visited flowers in the study area, indicate that P. crocea is an important nectar resource for short-billed hummingbirds in the study site.

scholarly journals Expanding the geographical distribution of Astyanax biotae Castro & Vari, 2004 (Characiformes, Characidae), with comments on its conservation status

Check List ◽  
2018 ◽  
Vol 14 (2) ◽  
pp. 387-392
Author(s):  
Carlos Alexandre Miranda Oliveira ◽  
Anielly Galego de Oliveira ◽  
Carla Simone Pavanelli
Keyword(s):  
Geographical Distribution ◽  
River Basin ◽  
Conservation Status ◽  
Paraná River ◽  
Left Bank ◽  
Order Stream ◽  
First Order ◽  
Parana River ◽  
Upper Paraná River ◽  
Upper Paraná River Basin

Astyanax biotae Castro & Vari, 2004 was only known from the type locality, a first-order stream from the lower Paranapanema River, a left bank tributary from the upper Paraná river basin. We report A. biotae from the Ivinhema River, rio do Peixe and other tributaries of Paranapanema River, expanding its distribution to both margins of the Paraná River. Astyanax biotae is zooplanktivorous and regarding its conservation status, can be classified as Least Concern.

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