Amphibians from Serra do Cipó, Minas Gerais, Brasil. VI: A New Species of the Physalemus deimaticus Group (Anura, Leptodactylidae)
Author
Leal, Fernando
Author
Leite, Felipe S. F.
Author
Da Costa, William P.
Author
Nascimento, Luciana B.
Author
Lourenço, Luciana B.
Author
Garcia, Paulo C. A.
text
Zootaxa
2020
2020-04-20
4766
2
306
330
journal article
22828
10.11646/zootaxa.4766.2.3
1b817812-78e4-4871-a70f-73abc507e914
1175-5334
3764071
urn:lsid:zoobank.org:pub:385FD3DD-9E4E-4FE4-A3D9-7952F012A963
Physalaemus deimaticus
species group distribution and conservation
Physalaemus deimaticus
was described in 1986 based on three individuals collected from the highlands of Serra do Cipó, with two of them collected in 1972 and one collected in 1982 (Sazima & Caramaschi 1986). The species was missing until 2010, when two individuals were collected at the
type
locality by M.T. Rodrigues. Likewise,
P. erythros
was described in 2003 on the basis of three individuals that were collected from the Parque Estadual do Itacolomi (
Caramaschi et al. 2003
).
Baêta & Silva (2009)
extended its distribution based on a single individual collected at the Reserva Particular do Patrimônio Natural Santuário do Caraça (RPPN Caraça), in the Municipality of Catas Altas, ca.
33 km
northward from the
type
locality. The apparently low abundance and poor knowledge about these species in terms of biology and distribution led both of them to be categorized as Deficient Data (DD) in the Brazilian Red List of Threatened Amphibian Species (ICMBio 2014).
FIGURE 11.
Geographic distribution of
Physalaemus claptoni
sp. nov.
and of the other species of the
P. deimaticus
species group. Triangles refers to species type localities. Abbreviations: MG=State of Minas Gerais, ES=State of Espírito Santo, RJ=State of Rio de Janeiro, SP=State of São Paulo.
The National Action Plan for Threatened Extinction Reptiles and Amphibians Conservation of Espinhaço Range (PAN Espinhaço) (MMA 2012, 2016) recommended the inventory of areas of potential occurrence of these DD species. Encouraged by this, we have searched for new populations of
Physalaemus
.
deimaticus
and
P. erythros
over the last few years (see Appendix I). For
P. deimaticus
we discovered two new populations: one in the Municipality of Diamantina,
112km
northward from its
type
locality, representing its northern limit of distribution; the others were in the Municipalities of Serro and Santo Antônio do Itambé in the Parque Estadual Pico do Itambé, ca.
98 km
northward from its
type
locality, representing its eastern limit of distribution. We also registered
P. deimaticus
at its
type
locality in six different streams. All these
P. deimaticus
populations were relatively abundant, could be well sampled, and were included in our phylogenetic analysis.
For
Physalaemus erythros
, we also discovered two new populations: one in the Municipality of Barão de Cocais,
59 km
northward from its
type
locality and
27 km
northward from the RPPN Caraça, representing its northern limit of distribution; and the other in the Municipality of Santa Bárbara, at the Parque Nacional do Gandarela,
36 km
northward from its
type
locality and
20 km
west of the RPPN Caraça, representing its western limit of distribution. We also registered
P. erythros
at its
type
locality in four different streams. All the registered populations of
P. erythros
were relatively abundant and could be sampled well and were included in our phylogenetic analysis, except for the one from Parque Nacional do Gandarela, from which we collected only one female from a pitfall trap.
In view of the data we provide here on the distribution of these species, with
Physalaemus deimaticus
occurring in two protected areas and
P. erythros
in three protected areas, there is no evidence of threats that could lead to their extinction. Therefore, we suggest that they should be considered as least concern (LC) species.
Physalaemus claptoni
sp. nov.
occurs geographically close (ca.
10 km
north) to the
type
locality of
P. deimaticus
in the Espinhaço Range (
Fig. 11
). However, they reproduce in distinct habitats. While
P. claptoni
sp. nov.
reproduces in small still water collections associated with forest edges,
P. deimaticus
uses small temporary rock streams surrounded by grasslands.
Physalaemus rupestris
is known from the mountains of Serra do Ibitipoca and Serra Negra in the Mantiqueira Range (
Caramaschi et al. 1991
;
Oliveira et al. 2009
), and it is the only species of the
P. deimaticus
group distributed outside the Espinhaço Range. Despite occurring in a distinct mountain range (Mantiqueira Range) where rock formations are more commonly made up of gneiss and granite (
Vasconcelos 2011
),
P. rupestris
is only found in some of the few quartzitic mountains of this range that harbor the same vegetation found in the Espinhaço Range, namely,
campo rupestre
(
Vasconcelos 2011
; Leal, F. personal observation). The occurrence of closely related species that are allopatrically distributed in the Mantiqueira (
P. rupestris
) and Espinhaço (
P. claptoni
sp. nov.
) ranges suggests a historic connection between these highlands of eastern
Brazil
, a hypothesis that has already been pointed out (
Maxson & Heyer 1982
;
Cruz & Feio 2007
) and is also corroborated by the existence of species with distributions restricted to the Espinhaço and Mantiqueira ranges (
Pirani et al. 2010
;
Taucce et al. 2012
). Further phylogeographical studies based on larger samples of specimens and genes (including nuclear markers) could help us to elucidate the historical and evolutionary processes underlying the occupation of these two mountain ranges by the
P. deimaticus
species group.
The new species has not been registered within strictly protected reserves, although it occurs between two of them, at
7 km
from the Parque Nacional da Serra do Cipó (33.8 ha) and
5 km
from the Parque Estadual Serra do Intendente (13.5 ha). The
type
locality is located in a private area where wood extraction has affected the structure of the forest fragment for years, although lately this activity has declined. Moreover, fire and cattle breeding have been disturbance agents for decades within the entire Serra do Cipó, including the
type
locality of
Physalaemus claptoni
sp. nov.
Even though several individuals of
P. claptoni
sp. nov.
were found during our fieldwork from
2010 to 2017
, we could not evaluate the possible effects of these disturbance activities on this species in a medium-long term.
Since the compilation of the anuran endemic species from the Espinhaço Range made by
Carvalho et al. (2013)
, who listed 37 taxa, four new species with distribution restricted to the mountain range have been described:
Crossodactylodes itambe
Barata, Santos, Leite, & Garcia, 2013
,
Sphaenorhynchus canga
Araujo-Vieira, Lacerda, Pezzuti, Leite, Assis, & Cruz, 2015
,
Scinax montivagus
Juncá, Napoli, Nunes, Mercês, and Abreu, 2015
,
Odontophrynus juquinha
Rocha
, Sena, Pezzuti, Leite, Svartman, Rosset, Baldo, and Garcia, 2017
, and
Physalaemus claptoni
sp. nov.
(present study). On the other hand,
Ololygon tripui
Lourenço, Nascimento & Pires, 2009
and
Bokermannohyla nanuzae
(
Bokermann & Sazima, 1973b
)
lost their endemic status because they were found outside the Espinhaço (
Silva et al. 2013
) or were synonymized with species that occur elsewhere (
Walker et al. 2015
), respectively. Therefore, 39 anuran species should be considered endemic to the Espinhaço Range at present.
Acknowledgments
We thank all those who provided assistance in the field expeditions, especially Hans Thomassen who helped collecting most of
type
series of the new species described and topotypes of
P. deimaticus
, Renato N. Feio
who helped collecting and recording many of the
P. rupestris
analyzed, and Pedro C.
Rocha
who helped collecting most of the
P. deimaticus
,
P. erythros
, and many of the
P. rupestris
analyzed. We also thank Pedro C.
Rocha
for making the distribution map (
Fig. 11
). We thank Igor R. Fernandes for help with the analysis of nuptial pads. We thank Miguel R. Trefaut for providing information regarding the specimens of
P. deimaticus
collected by him. We thank the collection curators and lab staff of UFV (Renato N. Feio, Carla S. Guimarães), MNRJ (José P. Pombal Jr., Manoela W. Cardoso), and CFBH (Célio F. B. Haddad, Nadya Pupin). Scientific collecting permits were issued by the Brazilian Instituto Chico Mendes de Conservação da Biodiversidade (SISBIO licenses 42369-1, 51066-2, 22551-1, 22551-2, 35826-1) and Instituto Estadual de Florestas (IEF UC: 146/12, 147/12). Felipe S. F. Leite thanks to Fundação de Amparo à Pesquisa do
Estado de Minas Gerais
(FAPEMIG, Process APQ-2067-14; APQ-01796-15; RDP-00004-17). Paulo C. A. Garcia thanks the productivity grant provided by the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Fundação de Amparo a Pesquisa do
Estado de Minas Gerais
(FAPEMIG, Process APQ- 03462-09; RDP-00053-10; PPM-00515-10). Luciana B. Nascimento thanks Conselho Nacional de Desenvolvimento e Pesquisa (CNPq, Process 479457/2012-03), Fundação de Amparo à Pesquisa do
Estado de Minas Gerais
(FAPEMIG, Process APQ-2067-14), and Fundo de Incentivo à Pesquisa - PUC Minas (FIP/PUC Minas). Luciana B. Lourenço thanks Fundação de Amparo à Pesquisa do
Estado de São Paulo
(FAPESP, Process #2011/09239-0).