Distribution extension of Vitreorana uranoscopa

Distribution extension of Vitreorana uranoscopa

Herpetology Notes, volume 7: 443-446 (2014) (published online on 5 July 2014)
Distribution extension of Vitreorana uranoscopa
(Anura: Centrolenidae) in the state of Rio Grande do Sul,
southern Brazil.
Ibere Farina Machado1*, Daniel Bühler2, Michelle Abadie3, Alfredo P. Santos-Jr Júnior4
and Raquel Rocha Santos5
The family Centrolenidae consists of 12 genera
including Vitreorana, which is represented by eight
described South American species (Guayasamin et
al., 2008; 2009; Frost, 2014). Vitreorana uranoscopa
(Müller, 1924) is a small arboreal tree frog (Figure
1a), and as other centrolenids, it is commonly known
as glass-frog because of its translucent ventral skin
(Izecksohn and Carvalho-e-Silva, 2001). The species
has a maximum size of 25 mm of snout-vent length,
short and spatulate snout (Figure 1b), and reproduces
during rainy season, when males (Figure 1c) call from
vegetation on banks of streams or forest interior at perch
heights greater than one meter above ground (Figure
2a, b and c) (Cunha et al., 2010). Spawns (Figure 2d,
e and f) were deposited on vegetation and at the end
of its development, the hatching tadpoles directly drop
into water (Heyer et al., 1990; Guayasamin et al., 2009;
Cunha et al., 2010). Universidade Federal de Goiás, Instituto de Ciências Biológicas,
Departamento de Ecologia. Prédio do ICB 1, Campus
Samambaia, Laboratório de Herpetologia e Comportamento
Animal, 74001-970, Goiânia, GO, Brazil.
2
Rua José de Alencar, nº 680, ap 202, 93900-000, Ivoti, RS,
Brazil.
3
Universidade Federal do Rio Grande do Sul, Instituto de
Biociências, Departamento de Zoologia, Laboratório de
Herpetologia, Avenida Bento Gonçalves, 9500, 91540-000,
Porto Alegre, RS, Brazil.
4
Universidade Federal do Oeste do Pará, Instituto de Ciências da
Educação, Laboratório de Ecologia e Comportamento Animal,
Rua Vera Paz s/n, Salé, 68035-110, Santarém, PA, Brazil.
5
Rua Roque Calage, nº 200, ap 108, 91350-090, Porto Alegre,
RS, Brazil.
*
Corresponding author e-mail: [email protected]
1
Vitreorana uranoscopa occurs along Atlantic Forest
domain, north of the Brazilian states of Minas Gerais
and Espírito Santo and south of Rio Grande do Sul, also
occurring in Misiones, Argentina (Lucas and Fortes,
2008; Guayasamin et al., 2009; Almeida et al., 2011;
São-Pedro and Feio, 2011). In Brazil V. uranoscopa
is classified as presumably threatened in the state of
Rio de Janeiro and vulnerable in Rio Grande do Sul
(Caramaschi et al., 2000; Garcia and Vinciprova, 2003).
The energy policy adopted in the country and in the
state of Rio Grande do Sul has prioritized the demand
for power plants, mainly hydropower plants (HPP)
(Capeletto and Moura, 2011). Implementation of this
policy certainly contributes to habitat changes through
the transformation of small-scale streams in rivers and
lakes formations (Garcia and Vinciprova, 2003).
To improve the knowledge on the Vitreorana
uranoscopa distribution in the state of Rio Grande do
Sul, we reviewed the known distribution and present
the new records in the state (Figure 3). To assess the
current state of knowledge on the distribution of glassfrog we conducted literature surveys, field trips, visits
of museum’s collections and search for information
in computerized collections, e.g. SpeciesLink (http://
www.splink.org.br). The currently known distribution
of glass-frog in the state of Rio Grande do Sul includes
only five localities in the municipalities of Planalto
(banks of Várzea River) (Garcia and Vinciprova,
1998), Rodeio Bonito and Barracão (Parque Estadual
de Espigão Alto) (Garcia and Vinciprova, 2003), São
Marcos (Machado et al., 2010) and Vila Maria (Savaris
et al., 2011). The region where V. uranoscopa occurs
in the Atlantic Forest domain is covered basically by
two types of forest formations: Araucaria moist Forest
and Serra do Mar Coastal Forest. Annual precipitation
is about 1,400 mm, with a dry season between summer
and autumn; the annual mean temperature is about
444
Ibere Farina Machado et al.
Figure 1. Adult specimens of Vitreorana uranoscopa from municipalities of: A. Nova Roma do Sul; B. Arvorezinha; and C.
Caxias do Sul, Rio Grande do Sul state.
19°C and the minimum temperature falls below 13°C in
winter (Maluf, 2000).
As summarized in Table 1, one of the new records
(Figure 3) was based on a single male (UFRGS 5161)
collected during calling activity in the municipality of
Arvorezinha. Besides that, the other new records were
conducted in the course of Environmental Impact Studies
for the construction of Dams for Water Supply (DWS),
Figure 2. Oviposition sites and spawn, respectively, of Vitreorana uranoscopa from municipality of Maquiné (A and D), Nova
Roma do Sul (B and E) and Caxias do Sul (C and F) in the state of Rio Grande do Sul, Brazil.
445
Distribution of Vitreorana uranoscopa in Rio Grande do Sul, Brazil
2a), and a nearby clutch (Figure 2d). Based on the
knowledge on the diversity of anurans known for the
state of Rio Grande do Sul and through comparisons of
our acoustic recordings with audio files available in the
online supplement of Heyer et al. (1990), we assigned
these observations to Vitreorana uranoscopa.
The present study reveals that Vitreorana uranoscopa
shows a somewhat wider distribution than previously
known and ads a series of new locality records. The
record from municipality of Maquiné is the southernmost
and lowest altitude record known for this species.
Acknowledgments. The authors would like to thank in particular
the studies in Forest Park State Nonoai, those responsible for
environmental studies carried out in HPP Monjolinho and SHPP
Albano Machado. We also thank Daniel Beim for allowing entry
on his farm in the municipality of Maquiné and Vivian Uhlig for
building the the first version of the map. As well to Ana Carolina
Anés, Caroline Zank, Eduardo Polanczyk and Nathalia Rocha
Matias for assistance in field work and to João Victor Lacerda
and Leonardo Moreira with corrections in previous versions of
this manuscript. To Sistema de Autorização e Informação em
Figure 3. Map with the known distribution of Vitreorana
uranoscopa in the state of Rio Grande do Sul, where the black
dots are the previously known localities (literature records)
and the red diamond are the new records. We use Datum
WGS - 84 for all Geographic Coordinate System and “World
Physical Map” as topography layer.
Small Hydro Power Plants (SHPP) and Hydro Power
Plants (HPP). As for the municipality of Nova Roma do
Sul for the implementation of HPP Castro Alves, where
only one specimen was observed during calling activity
(UFRGS 4580) perched on leaves from riparian forest
at a shallow stream (Figure 2c), close to three spawns
(Figure 2d); municipality of Nova Roma do Sul (MCPAnfíbios 11979); in SHPP Albano Machado in the
municipality of Trindade do Sul (UFRGS 4347, 4348
and 4380-4383) and municipality of Nonoai at HPP
Monjolinho (UFRGS 3447) and close to the Erechim
river (UFRGS 2586); and in two coordinates for
municipality of Caxias do Sul at a DWS (MCP-Anfíbios
11110, 11491, 11664, 11667 and MCP-Anfíbios 11665,
11666). A casual sampling resulted in the record in the
municipality of Maquiné (29º30’13” S, 50º14’13” W,
268 m above sea level) by an acoustic record, where an
unreachable specimen vocalized on leaves of riparian
forest in a torrential stream due to heavy rains (Figure
Table 1. Literature and new records of Vitreorana uranoscopa
in the state of Rio Grande do Sul, Brazil. MCP: Coleção
Herpetológica do Museu de Ciências e Tecnologia, Pontifícia
Universidade Católica do Rio Grande do Sul; UFRGS: Coleção
Herpetológica, Departamento de Zoologia, Universidade
Federal do Rio Grande do Sul; CAUC: Coleção de Anfíbios
da Universidade Comunitária da Região de Chapecó.
Municipality
Arvorezinha
Barracão
Caxias do Sul
Caxias do Sul
Caxias do Sul
Caxias do Sul
Caxias do Sul
Caxias do Sul
Maquine
Nonoai
Nonoai
Nova Roma do Sul
Nova Roma do Sul
Planalto
Planalto
Rodeio Bonito
São Marcos
São Marcos
Trindade do Sul
Trindade do Sul
Trindade do Sul
Trindade do Sul
Trindade do Sul
Trindade do Sul
Vila Maria
Vila Maria
Vouchers
UFRGS 5161
No voucher
MCP 11110
MCP 11491
MCP 11664
MCP 11665
MCP 11666
MCP 11667
No voucher
UFRGS 2586
UFRGS 3447
MCP 11979
UFRGS 4580
UFRGS 1465
UFRGS 1466
No voucher
MCP 9986
MCP 9987
UFRGS 4347
UFRGS 4348
UFRGS 4380
UFRGS 4381
UFRGS 4382
UFRGS 4383
CAUC 988
CAUC 989
Coordinates
28º51'19"S, 52º18'20"W
27º38'37"S, 51º28'44"W
29º02'13"S, 50º59'08"W
29º02'11"S, 50º59'05"W
29º02'11"S, 50º59'05"W
29º02'00"S, 50º59'19"W
29º02'00"S, 50º59'19"W
29º02'11"S, 50º59'05"W
29º30'14"S, 50º14'13"W
27º22'18"S, 52º42'37"W
27º22'15"S, 52º42'40"W
29º00'58"S, 51º21'41"W
28º57'14"S, 51º22'58"W
27º19'44"S, 53º03'31"W
27º19'44"S, 53º03'31"W
27º28'16”S, 53º08'36"W
29º02'10"S, 51º05'31"W
29º02'10"S, 51º05'31"W
27º30'13"S, 52º49'16"W
27º30'13"S, 52º49'16"W
27º30'13"S, 52º49'16"W
27º30'13"S, 52º49'16"W
27º30'13"S, 52º49'16"W
27º30'13"S, 52º49'16"W
28º30'00"S, 52º02'00"W
28º30'00"S, 52º02'00"W
Reference
New record
Garcia and Vinciprova, 2003
New record
New record
New record
New record
New record
New record
New record
New record
New record
New record
New record
Garcia and Vinciprova, 1998
Garcia and Vinciprova, 1998
Garcia and Vinciprova, 2003
Machado et al., 2010
Machado et al., 2010
New record
New record
New record
New record
New record
New record
Savaris et al., 2011
Savaris et al., 2011
446
Biodiversidade (SISBIO/ICMBio) for allowing us to collect
specimens (permit number: 10341-1 and 37794-1).
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Accepted by Miguel Vences