Journal of Threatened Taxa |
www.threatenedtaxa.org | 26 January 2021 | 13(1): 17569–17573
ISSN 0974-7907 (Online) | ISSN 0974-7893
(Print)
https://doi.org/10.11609/jott.5855.13.1.17569-17573
#5855 | Received 10 March 2020 | Final
received 23 November 2020 | Finally accepted 24 December 2020
First record of Touit melanonotus (Wied, 1820) (Aves: Psittaciformes:
Psittacidae) in Cantareira State Park, Brazil: new
colonization or simply unnoticed?
Marcos Antônio Melo 1 & David de Almeida Braga 2
¹ Programa
de Pós-Graduação em Ecologia e Recursos Naturais, Universidade Federal de
São Carlos – UFSCar. Rodovia
Washington Luiz, km 235, 13565-905, São Carlos, SP, Brazil.
1,² Seção
Técnica de Manejo de Fauna em Vida Livre, Departamento de Conservação de Biodiversidade, Secretaria de Meio Ambiente da Prefeitura de
Guarulhos. Av. Dona Glória Pagnoncelli,
344, CEP, Guarulhos, SP, Brazil.
¹ mam_melo@yahoo.com.br
(corresponding author), ² davidbraga79@gmail.com
Editor: Michael J. Parr, American Bird
Conservancy, Washington, USA. Date of publication: 26
January 2021 (online & print)
Citation: Melo, M.A. & D.A. Braga (2021). First record of Touit melanonotus (Wied, 1820) (Aves: Psittaciformes:
Psittacidae) in Cantareira State Park, Brazil: new
colonization or simply unnoticed? Journal of Threatened Taxa 13(1): 17569–17573. https://doi.org/10.11609/jott.5855.13.1.17569-17573
Copyright: © Melo & Braga 2021. Creative Commons Attribution
4.0 International License. JoTT allows unrestricted use, reproduction, and
distribution of this article in any medium by providing adequate credit to the
author(s) and the source of publication.
Funding: None.
Competing interests: The authors
declare no competing interests.
Acknowledgements: We are gratefull
to: BirdLife International for providing data base of
range distribution; Alexsander Zamorano
Antunes provided non-published records; and Ana Lucia Arromba
& Vladimir Arrais de Almeida for inviting us to
participate in a technical meet and give us the opportunity to record this
species in CSP.
A avifauna do Parque Estadual da Cantareira (PEC, São Paulo, Brazil) apresenta 120 anos de estudos, mas inexistiam registros do apuim-de-costas-pretas Touit
melanonotus.
Aqui, apresentamos seu primeiro registro
e item alimentar (frutos de
Ocotea sp.) no PEC, discutindo
o seu potencial de cruzar paisagens urbanas ou ter
passado despercebido por longo período.
Palavras-chave: Mata Atlântica;
Extensão de distribuição; Endemismo;
Urbanização; Ameaçada de extinção.
Touit is a genus of Psittacidae comprising small (14–18 cm) parrotlets
(Straube et al. 2010) with eight species
restricted to the Neotropical region (del Hoyo et al.
2019). The Brown-backed Parrotlet Touit melanonotus is a rare psittacid
endemic of the Brazilian Atlantic Forest (Parker III et al. 1996; Sick 1997)
and restricted to the Serra do Mar endemism center (Cracraft
1985), whose distribution is from southern Bahia to Santa Catarina (Vallejos et al. 2013; Leal et al 2018). The Brown-backed Parrotlet
is recorded mostly between 500 and 1,000 m altitude, although there are records
from sea level to 1,700m (Leal et al. 2018).
It is 15cm in length and 66.5g in weight, a forest specialist that feeds
mainly on fruits and forages on varied forest strata (Parker III et al. 1996;
Sick 1997; Wilman et al. 2014). Historically, human activities associated
with agricultural and livestock, and recently with urbanization, however, have
resulted in serious habitat loss and degradation in the Atlantic Forest
(Ribeiro et al. 2009). Nowadays, this
biome presents a highly fragmented landscape with few forest patches larger
than 100ha, mostly confined to the Serra do Mar mountains (Ribeiro et al. 2009). Consequently, T. melanonotus populations are declining and are
actually classified as Vulnerable in regional and global red lists of
threatened species (Brasil 2014; São Paulo 2018; IUCN
2019).
The forests of Serra do Mar
continuum are responsible for the maintenance and conservation of all known T.
melanonotus populations (Leal et al.
2018). Its absence is noticeable as
distance increases from the Serra do Mar continuum (see map in Schunck 2009) even in the largest forest remnants (>
5,000ha) in the Atlantic Plateau of São Paulo such as Morro Grande Forest
Reserve (Develey & Martensen
2006) and Cantareira State Park (São Paulo 2009; Tonetti
et al. 2017). This context has supported
the inference about the high sensitivity of this parrotlet
and it restriction for crossing the non-forest habitat matrix (Leal et al.
2018) which would make it impossible for it to pass through a highly fragmented
landscape influenced by more than 40km of the urbanized area of the São Paulo
“megacity”.
Frequently, low bird sampling
efforts are inefficient to detect rare species of birds. There are few bird studies conducted in Morro
Grande Forest Reserve (Develey & Martensen 2006; Boscolo et al. 2006) compared with Cantareira State Park (CSP) for
which there is a large amount of ornithological knowledge (Tonetti
et al. 2017). From the end of the 19th
century to the 1960’s, several collectors sampled birds in CSP (Pinto 1938,
1944; Graham 1992). Graham performed the
first avian community study (Graham 1992) and other studies were carried out
between 2000 and 2017 (Antunes & Eston 2008;
Antunes et al. 2009; São Paulo 2009; Tonetti & Pizo 2016; Tonetti et al. 2017).
Moreover,
many researchers and birdwatchers have visited CSP and have made contributions
to the knowledge of the bird richness in the park. The last compilation demonstrated a total of
326 bird species confirmed in CSP (Tonetti et al.
2017), however, even after more than 120 years, T. melanonotus
had not been recorded.
The present study has shown a
first record of T. melanonotus in the CSP, the
largest urban forest of the world (Ayres 2008).
In the morning (08:18h) of 18 October 2019, we heard and observed 10
individuals of T. melanonotus at Pedra Grande, an administrative CSP zone (-23.438920 &
-46.631539, 945m), in the municipality of São Paulo, SP, Brazil. The flock was perched in the canopy (~15m
high) and feeding on fruits of Ocotea sp. Aubl. (Lauraceae). We saw just two birds eating fruits attached to
the stalks, and they remained upside down to reach the fruits. The call was recorded and deposited in the xeno-canto library (XC521608). After six minutes of observation, the flock
flew above the canopy and was not relocated.
To the best understanding of this parrotlet
distribution in São Paulo metropolitan region, we present other previous
records made by us, together with other localities cited in literature (Table
1; Figure 1). The present record of T.
melanonotus for CSP reinforces its classification
as an important bird area for conservation (Bencke et
al. 2006). This record is the closest
yet to the São Paulo urban fringe (1km) (Figure 1b). Our record is 109km removed from the nearest
two known populations in Capivari-Monos Environmental
Protection Area (EPA) and Curucutu administrative
zone of Serra do Mar State Park (Melo et al. 2016; Schunck
et al. 2019), 90km from a
private area (Solo Sagrado de Guarapiranga
property) (Melo et al. 2011), and 89km from Serra da Mantiqueira
(Wege
& Long 1995) (Figure 1).
There is little information on
diet items and feeding behavior of T. melanonotus. Fruits of Maytenus
sp. (Schunck et al. 2008), Clusia
criuva (Simpson & Simpson 2012), Rapanea acuminata
(Juniper & Parr 1998), and Struthanthus
vulgaris (Vallejos et al. 2013) are the food
items recorded for this rare parrotlet. To our knowledge, this is the first time that
fruits of Ocotea sp. (Lauracea)
have been recorded in their diet. We
observed two birds hanging upside down to reach the fruits, which adopted non-plucker behavior; although the plucker
strategy has been observed for the majority of birds when eating fruits of C.
criuva (Simpson & Simpson 2012).
The presence of these birds in
CSP calls attention to two questions: (i) is it
possible this species has been unnoticed in CSP for more than a century? and
(ii) is it evidence that T. melanonotus
could cross altered human landscapes between CSP and other large Atlantic
Forest fragments? To respond to these questions, we suspect the vocal
similarity of T. melanonotus to other
birds could be a reason for it being misidentified in the past if only heard
and not seen. In the São Paulo state,
voices of syntopic birds (e.g., Megarhynchus
pitangua and Pionopsitta
pileata) have not been a strong source of identification
errors as observed in other regions (Vallejos et al.
2013). On the other hand, T. surdus, a species without documentation in
this state of São Paulo (Silveira & Uezu 2011),
has been confounded with T. melanonotus by researchers in the past (Bencke et al. 2006).
The rarity and difficulty of voice identification of T. melanonotus explains its apparent long absence
from Santa Catarina state, even in a well-studied region (Vallejos
et al. 2013). Although this parrotlet is recorded more in São Paulo state than in
southernmost region of its geographic distribution (Simpson & Simpson 2012;
Vallejos et al. 2013; Leal et al. 2018; Schunck et al. 2019), and several birdwatchers and
ornithologists that visited the CSP already recorded it in other regions
(Willis & Oniki 2003; Minns
et al. 2009; Schunck 2009), however, its absence in
CSP making us rule out the possibility that T. melanonotus
couldn’t have been missed there for 120 years. It is strong evidence that T. melanonotus might be newly arrived in CSP. But only
new records will conclude if CSP is functioning as a stepping-stone or provide
habitat year-round for T. melanonotus,
as a result of recent colonization.
Although lacking evidence that
this bird could cross long distances across rural and urban matrices, it is
commonly observed flying over forest canopies (Leal et al. 2018), indicating a
higher capability of displacement than previously believed. Other forest psittacids,
e.g., Pionopsitta, are already observed
crossing long distances between the Serra do Mar and countryside forest
fragments (Pinto 1944). In this sense,
there are possibilities for the source population having originated from Serra
da Mantiqueira or the Serra do Mar mountains, both
localities with confirmed records (Wege & Long
1995; Schunck 2009).
Nonetheless, as T. melanonotus
has been more frequently recorded in the Serra do Mar than in Serra da Mantiqueira (Schunck 2009),
provides additional evidence that these birds may have come from the first region. This record could bring to light an inference
that T. melanonotus is able to cross
though anthropic landscapes surrounding the São Paulo megacity.
To elucidate the actual means of
displacement of this species, studies using geolocators would be required (Jahn et al. 2016).
In September 2010, another record of T. melanonotus
came from a private area (Solo Sagrado de Guarapiranga property) (-23.771 & -46.754; 760m;
XC76242) (Melo et al. 2011), 23km from a narrow strip of the Serra do Mar and
2.9km from an urbanized area, which was recently fragmented by the construction
of Rodoanel roads (Catharino
& Aragaki 2008).
These records in the north (CSP) and southwestern (Guarapiranga
dam) of the São Paulo metropolitan region open another opportunity for application
of conservation strategies in peri-urban habitats of the São Paulo megacity, a
type of habitat until now without evidence of use by this species. Our records highlight that peri-urban habitat
use by T. melanonotus demonstrates the
importance of public policies that provide effective forest protection in the
Green Belt of São Paulo City, which has been constantly threatened by urban
sprawl and infrastructures (Bencke et al. 2006; Melo
et al. 2016; Schunck & Rodrigues 2016; Tonetti et al. 2017).
Habitat loss seems to be the main threat for this emblematic psittacid of the Atlantic Forest, and urban sprawl and its
associated infrastructures directly and indirectly contribute to habitat loss
(Leal et al. 2018). The creation
of new protected areas has been recommended (Schunck
2009). We highlight the importance of
creating new protected areas in the Green Belt of São Paulo City, as well as
the execution of forest restoration projects in regions situated between Mantiqueira and Cantareira, and Serra do Mar and Serra da
Cantareira. This measure might be
fundamental to improve habitat connectivity for many Atlantic Forest endemic
birds (Uezu & Metzger 2016), and likely a
corridor for T. melanonotus. Thereafter, such measures will help in the
preservation of bird’s ecosystem functions in the peri-urban forest fragments
belonging to one of the main biodiversity hotspots of the world.
Table 1. Records of Touit melanonotus
surrounding the São Paulo metropolitan region and Serra da Mantiqueira,
São Paulo state, Brazil.
Date |
Municipality |
Sites |
References |
Coordinates |
Alt(m) |
Rec |
Doc |
Ind |
18.x.2019 |
São Paulo |
Cantareira State Park (Pedra Grande) |
Present study |
-23.438 &
-46.631 |
985 |
A/V |
Y |
10 |
04.i.2012 |
São Paulo |
Capivari-Monos Environmental
Protected Area/ Serra do Mar State Park (Curucutu) |
Present study |
-23.967 &
-46.652 |
790 |
A |
N |
6 |
05.ix.2010 |
São Paulo |
Private area – Solo Sagrado de Guarapiranga
property (non-protected) |
Present study |
-23.769 &
-46.757 |
740 |
A |
Y |
4 |
20.xii.2009 |
Juquitiba |
Jurupará State Park |
Present study |
-23.969 &
-47.178 |
650 |
A/V |
N |
26 |
24.iii.2009 |
São Paulo |
Capivari-Monos Environmental
Protected Area (EPA)/ Serra do Mar State Park: Curucutu |
Melo et al. 2016 |
-23.967 &
-46.652 |
780 |
A |
N |
4 |
05.xi.2009 |
São Paulo |
Capivari-Monos Environmental
Protected Area (EPA)/ Serra do Mar State Park Curucutu |
Melo et al. 2016 |
-23.959 &
-46.650 |
780 |
A/V |
Y |
8 |
01.xii.2007 |
Itanhaém |
Serra do Mar State Park: Curucutu |
Schunck et al. 2008, 2019 |
-24.025 &
-46.779 |
400 |
A/V |
Y |
6 |
29.v.1994 |
São José dos Campos |
Serra dos Poncianos/
Mantiqueira |
Wege & Long 1995 |
-22.878 &
-45.969# |
1476 |
A/V |
N |
? |
Alt(m)—altitude in meters |
Rec—record type | A—aural | V—visual | Doc—documentation: Y—yes or N—no | Ind—number of individuals seen [?, not informed] | #, data
collected in www.ebird.org.
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