10TH ANNIVERSARY ISSUE
Check List the journal of biodiversity data
Check List 11(1): 1519, January 2015 doi: http://dx.doi.org/10.15560/11.1.1519
ISSN 1809-127X © 2015 Check List and Authors
LISTS OF SPECIES
New records of Picumnus subtilis (Aves: Picidae), Cnipodectes
superrufus and Hemitriccus cohnhafti (Aves: Rhynchocyclidae)
in Acre, Brazil
Tomaz Nascimento de Melo1*, Fábio Olmos2 and João Quental3
1
2
3
*
Universidade Federal do Acre, Mestrado em Ecologia e Manejo de Recursos Naturais, BR 364, Km 4, 69915-900, Distrito Industrial, Rio Branco, AC, Brazil
Permian Brasil, Largo do Paissandu 100 apt 4C, 01034-010, São Paulo, SP, Brazil
Av. Epitácio Pessoa, 3400, 22471-003, Rio de Janeiro, RJ, Brazil
Corresponding author. E-mail: tomaznmelo@hotmail.com
Abstract: We report a range extension of the recently described Acre Tody-Tyrant (Hemitriccus cohnhafti) to a site 161
km NE from the type-locality, the third site for this species.
The same site is also the fourth Brazilian locality for Finebarred Piculet (Picumnus subtilis). The fourth Brazilian locality for Rufous Twistwing (Cnipodectes superrufus) is also described. All are endemic to southwestern Amazonia and, in
Brazil, known only from Acre.
from the Transacreana highway northwest of Rio Branco,
Acre’s capital. The local vegetation is a mosaic of terra firme
forest dominated by bamboos and palms, interspaced with
pastures and small agricultural plots in varying types. The
forests in the area have been cut during the recent past, both
for commercial enterprises and for subsistence agriculture. A
recent inventory found 266 bird species there (Guilherme and
Santos 2009).
Humaita Forest Reserve (09°45′08″ S, 067°40′14″ W),
elevation 130 m — Porto Acre municipality. This are belongs
to the Brazilian Institute for Colonization and Land Reform
(INCRA but was leased to the Acre Federal University) UFAC
for research purposes. The reserve has about 3,700 ha, and
includes elevations of 130–179 m (Barroso et al. 2011). Humaita
is bounded to the east by the Acre River and to the west by
the AC-40 road. The main vegetation is open terra firme forest
with bamboo (Guadua weberbaueri) and open terra firme
forest with palms (Barroso et al. 2011). Despite the area being
visited by many ornithologists no bird list has been published
for this site.
Observations were made in both sites in August–September 2014 during fieldwork carried by TNM for his master’s
project and bird-watching outing. Copies of sound recordings
are available at Xeno-canto (www.xeno-canto.org) and of photos at Wikiaves (www.wikiaves.com.br) databases.
Fine-barred Piculet, Picumnus subtilis Stager, 1968, was
previously considered endemic to southeast Peru in Madre de
Dios, Cuzco and Puno (Schulenberg et al. 2007). The first Brazilian records, all in Acre, were of a male collected at Macauã
National Forest and now in the collection of the Museu de
Zoologia da Universidade de São Paulo, and individuals
recorded at the Upper Purus at Santa Cruz Velha (Rego et
al. 2009). WikiAves currently has several more recent photo
records of this species made in Rio Branco municipality, where
TNM has seen it several times.
On 19 August 2014 during a bird-watching outing to Ramal
Jarinal, we heard the typical song of Picumnus subtilis, a short
sequence of high-pitched notes, at the edge of a bamboo
patch by the road. After play-back we located three individuals about 3 m up in a bush, apparently an adult pair together
Key words: Acre, bamboo specialists, Brazil, Cnipodectes
superrufus, Hemitriccus cohnhafti, Picumnus subtilis,
southwestern Amazon.
Acre is the western Amazon, a region well-known for its avian
diversity (Whittaker and Oren 1999; Whittaker et al. 2002);
currently, Acre’s bird list includes 668 species (Guilherme
2012; Marques and Guilherme 2014). One of the main reasons
for such high species richness is the diversity of habitats resulting from edaphic and soil conditions, and the successional
vegetation mosaics influenced by the large rivers draining
from the Andes (Kratter 1997). Among the most characteristic habitats in this region are forests dominated by bamboos
of the genus Guadua (Poaceae: Bambusoideae), these covering
some 180,000 km2 in Acre, Peru and Bolívia (Nelson 1994). In
Acre these forests form a mosaic with other vegetation types
and represent 38% of the state’s forest cover (Silveira 2005;
Guilherme and Santos 2009).
Here we report new records of Fine-barred Piculet Picumnus
subtilis Stager, 1968, Rufous Twistwing Cnipodectes superrufus
Lane, Servat, Valqui & Lambert, 2007 and Acre Tody-Tyrant
Hemitriccus cohnhafti Zimmer, Whittaker, Sardelli, Guilherme
& Aleixo 2013, three species endemic to the southwestern
Amazon, partially or strictly associated with bamboo forests
and, in Brazil, recorded only in Acre (Tobias et al. 2008; Rego
et al. 2009; Zimmer et al. 2013).
The new records were made in two localities in eastern Acre
(Figure 1):
Ramal Jarinal (09°54′13″ S, 068°31′45″ W), elevation 200 m —
Rio Branco municipality. This is accessed by a road branching
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Volume 11 | Number 1 | Article 1519
Melo et al. | New records of Picumnus subtilis, Cnipodectes superrufus and Hemitriccus cohnhafti in Acre, Brazil
Figure 1. Map of localities cited in the text. Type locality refers to the site where Hemitriccus cohnhafti was first discovered and Portillo is the sole Peruvian
locality for the species.
with a juvenile. Answering to the play-back, the trio remained
together singing and exploring the branches, allowing several
pictures to be taken (Figure 2).
Our record agrees with the suggestions of Rego et al.
(2009) and Harvey et al. (2014) that this piculet is associated
with lowland bamboo forests. All records in Acre have been
made east of the Purus River, coinciding with the portion of
the state with largest amount of bamboo (Guilherme and Santos 2009). Including the records of this species from near the
urban area of Rio Branco (including the environs of UFAC),
some 70 km to the west, our record marks the fourth Brazilian
locality for this species.
Acre Tody-Tyrant (Hemitriccus cohnhafti) Zimmer, Whittaker, Sardelli, Guilherme & Aleixo is recently described the
type locality 10 km east of Assis Brasil, on the Brazil, Peru
and Bolivia border. This site is less than 500 m from the
Acre River, which is less than 100 m across at this point. The
expected presence of this tody-tyrant in the neighbouring
countries (Zimmer et al. 2013) was recently confirmed when
it was encountered in Peru at the locality of Portillo, south of
the Tahuamanu River (Harvey et al. 2014).
On 19 August 2014, minutes after we recorded the Picumnus subtilis family reported above, we heard the calls of a
Hemitriccus cohnhafti at the same road-side patch of bamboo.
After playback we got only a brief glimpse of the bird as it
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Figure 2. Adult male Fine-barred Piculet, Picumnus subtilis, at Jarinal.
Photo by João Quental.
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Melo et al. | New records of Picumnus subtilis, Cnipodectes superrufus and Hemitriccus cohnhafti in Acre, Brazil
moved away. After exploring several locations further along
road, however, we found several other individuals on the
same day as well as on a later visit (23 and 24 August). We
gathered both photographic (Figure 3) and sound (XC198709)
vouchers which confirmed our initial sight records.
The bird in Figure 3 answered the play-back by approaching
and calling frequently while moving among bamboo stems 3-4 m
above the ground. The understory at all points where we detected tody-tyrants was dominated by bamboo, with few saplings
or other species, very similar to the habitat described by Zimmer et al. (2013) and Harvey et al. (2014). At Jarinal H. cohnhafti
occurs side by side with H. flammulatus, which is common there
(Guilherme and Santos 2009). Our record marks the only third
locality for H. cohnhafti and the most distant location we found
this species (09°53′68″ S, 068°26′62″ W) extends its range some
161 km to the northeast of the type locality.
Rufous Twistwing, Cnipodectes superrufus Lane, Servat,
Valqui & Lambert, 2007, another recently described species, is
currently known from 14 localities in Peru (Madre de Dios and
Cuzco), Bolívia (Pando) and Brazil (Lane et al. 2007; Tobias et
al. 2008; Harvey et al. 2014). In Brazil, it is known from just
three localities, all in Acre: Rio Acre Ecological Station, Ramal
Jarinal and UFAC’s Parque Zoobotânico in Rio Branco (Tobias
et al. 2008). It is generally uncommon and hard to detect
even in known sites in Acre, although elsewhere it is reportedly common and easy to find when calling (Lane et al. 2007;
Tobias et al. 2008).
On 30 August 2014, at Humaita, TNM heard a Cnipodectes
superrufus calling at the edge of a bamboo patch beside a small
streem. After playback the bird became silent and quietly
approached TNM while perching on leafy bamboo branches 1–3
m above the ground. When perched it would frequently raise a
wing, as described by Lane et al. (2007) and Tobias et al. (2008).
After a few minutes the bird flew away and resumed singing.
On 30 and 31 August and 7 and 14 September 2014 the
twistwing was again found at the same location, at whith time
it was photographed (Figure 4) and recorded (XC198786).
During one of the observations the bird was seen singing and
raising one of the wings while foraging. Once it ate a caterpillar caught from a bamboo leaf after sally-striking diagonally
upwards. The caterpillar was hit against a branch before being
eaten whole.
During 16 days of fieldwork in Humaitá, we used playback
to locate individuals, but we were unsuccessful. This record of
C. superrufus was made after more than 300 h of fieldwork at
that site. Tobias et al. (2008) suggests C. superrufus is one of
the rarest and most threatened of the regional bamboo specialist
species. Populations seem to be very patchy, and occurrence is
unpredictable, with the species being absent from large areas of
seemingly adequate habitat (Tobias et al. 2008).
Figure 3. Acre Tody-tyrant Hemitriccus cohnhafti at Jarinal. Photo by João
Quental.
Figure 4. Rufous Twistwing, Cnipodectes superrufus, at Humaitá. Photo by
Tomaz Nascimento de Melo.
ACKNOWLEDGMENTS
Tomaz Nascimento de Melo thanks CAPES for the research
grant and the PPBio - Núcleo Regional Acre for logistical support when carrying fieldwork for his master’s at. Rita Souza
kindly prepared the maps.
espacial de cinco espécies madeireiras exploradas no Estado do
Acre, Brasil. Scientia Forestalis 39(92): 489–499 (http://www.ipef.
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revista/index.php/BJO/article/view/0149/pdf_644).
Guilherme, E. and M.P.D. Santos. 2009. Birds associated with bamboo
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Melo et al. | New records of Picumnus subtilis, Cnipodectes superrufus and Hemitriccus cohnhafti in Acre, Brazil
Tobias, J.A., D.J. Lebbin, A. Aleixo, M.J. Andersen, E. Guilherme,
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Authors’ contribution statement: TNM, FO and JQ recorded
Hemitriccus cohnhafti and Picumnus subtilis. TNM recorded
Cnipodectes superrufus. TNM wrote the article, FB translated into
English and made the map and JQ made the photos.
Received: October 2014
Accepted: December 2014
Editorial responsibility: Johan Ingels
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