scholarly journals Occurrence of the Eastern Slaty Thrush (Turdidae) in southern Brazil during the non-breeding season

2014 ◽  
Vol 22 (3) ◽  
pp. 260-264 ◽  
Author(s):  
Huilquer Francisco Vogel
Keyword(s):  
Breeding Season ◽  
Southern Brazil

Daily Movement and Microhabitat Use by the Blacksmith TreefrogHypsiboas faber(Anura: Hylidae) during the Breeding Season in a Subtemperate Forest of Southern Brazil

2016 ◽  
Vol 11 (2) ◽  
pp. 89-97 ◽  
Author(s):  
Mateus de Oliveira ◽  
Gustavo Francisco Aver ◽  
Leonardo Felipe Bairos Moreira ◽  
Patrick Colombo ◽  
Alexandro Marques Tozetti
Keyword(s):  
Breeding Season ◽  
Microhabitat Use ◽  
Southern Brazil ◽  
Daily Movement

scholarly journals The Azure Jay may reproduce in plantations of Araucaria angustifolia in southern Brazil

2012 ◽  
Vol 22 (2) ◽  
pp. 205-212
Author(s):  
ANDREA LARISSA BOESING ◽  
LUIZ DOS ANJOS
Keyword(s):  
Breeding Season ◽  
Cooperative Breeding ◽  
Secondary Forest ◽  
Field Observations ◽  
Araucaria Angustifolia ◽  
Southern Brazil ◽  
Natural Areas ◽  
Active Nest

SummaryWe undertook field observations of the Azure Jay Cyanocorax caeruleus in Araucaria plantations and a secondary forest in southern Brazil from 2007 to 2010. During the breeding season, the territory and the flock sizes in Araucaria plantations (31.6–42.2 ha; 2–3 individuals) seemed to be smaller than in the secondary forest (64.5–72.6 ha; 5–6 individuals). One active nest was monitored in October–November 2009 and indicated cooperative breeding by the Azure Jay, as for the majority of American jays. The fact that reproduction was documented in Araucaria plantations may be positive for the conservation of this species, since natural areas of mixed rainforest are becoming increasingly scarce.

scholarly journals Breeding biology of Long-tailed Cinclodes Cinclodes pabsti Sick, 1969 (Passeriformes: Furnariidae)

2021 ◽  
Vol 61 ◽  
pp. e20216184
Author(s):  
Jairo José Zocche ◽  
Fernando Carvalho ◽  
Ariovaldo Pereira Cruz-Neto
Keyword(s):  
Life History ◽  
Clutch Size ◽  
Breeding Season ◽  
Nearest Neighbor ◽  
Geographic Location ◽  
The Body ◽  
Breeding Biology ◽  
Southern Brazil ◽  
Substrate Type ◽  
Breeding Seasons

Cinclodes pabsti is an endemic passerine restricted to the highland areas in southern Brazil. The aim of this study was to provide information on its breeding biology. The nesting cavities along road cuts were monitored from May 2008 to March 2011. The survey was carried out monthly from May to July 2008, February to July 2009, 2010 (non-breeding season), weekly from August 2008 to January 2009, 2010 (breeding season), and on a 2 to 4-days basis from August 2010 to January 2011. The geographic location, physical characteristics, and soil/substrate type in which the nesting cavities were situated were recorded. The total number of cavities used in the three breeding seasons was 136, resulting in 295 nests. The distance of a nest to its nearest neighbor ranged from 24-2,368 m, with a higher number of nests (n = 34; 59.7%) in the distance interval of 24-500 m. There was a greater usage of cavities located in Inceptisols, and the distances of nesting cavity entrances to the ground and to the top of road cuts were 1.6 ± 0.9 m and 0.8 ± 0.62 m, respectively. The breeding season lasted 148 days from mid-August to early January. Clutch size (n = 256) varied from 2 to 3 eggs, and the eggs (n = 155) had a total length of 27.2 ± 1.3 mm, breadth of 20.9 ± 0.8 mm, and mass of 6.2 ± 0.7 g. The incubation phase lasted 17.3 ± 0.8 days and the nestling phase for 18.3 ± 1.5 days. The body mass of the chicks was 6.0 ± 1.0 g just after hatching and reached a maximum of 59.6 ± 2.4 g at 16 days of age. Our results can contribute to filling the gaps in knowledge of C. pabsti ecology, because its habitat is under high anthropic pressures and the information on its life history is yet limited.

Population dynamics of the black-cheeked gnateater (Conopophaga melanops, Conopophagidae) in southern Brazil

2009 ◽  
Vol 25 (6) ◽  
pp. 605-613 ◽  
Author(s):  
André Magnani Xavier de Lima ◽  
James Joseph Roper
Keyword(s):  
Population Dynamics ◽  
Population Growth ◽  
Breeding Season ◽  
Survival Rates ◽  
Territory Size ◽  
Adult Survival ◽  
Southern Brazil ◽  
Annual Survival ◽  
Socially Monogamous ◽  
Population Structure And Dynamics

Abstract:Population structure and dynamics of the black-cheeked gnateater (Conopophaga melanops) were studied at Salto Morato Nature Reserve, in Paraná, southern Brazil, from October 2006 to September 2007. Territory size and population density, breeding season (timing and length), reproductive success and annual survival rates were estimated from sightings of 18 marked adult birds and the success of 18 nesting attempts. The black-cheeked gnateater is socially monogamous and territorial, with a breeding-season length of approximately 3 mo beginning in early October. Predation caused most nest failures, nest survival was 0.96 d−1and apparent annual nesting success was 22%, resulting in annual productivity of 0.36 individuals per adult. Apparent adult annual survival was ~0.44 y−1. Seventy-five per cent of fledglings survived at least 2 mo after fledging. Two methods of estimating population growth rate suggest very different rates: r = −0.04 (~ stable), or λ varies between 0.475–0.616 (declining). Yet, low apparent adult survival suggests that territories are not permanent, perhaps abandoned after nest failure. We find that by estimating population growth, even in short-term studies, testable hypotheses can be generated that will allow better understanding of population dynamics.

scholarly journals Geographical and seasonal distributions of the seedeaters Sporophila bouvreuil and Sporophila pileata (aves: Emberizidae)

2010 ◽  
Vol 50 (32) ◽  
pp. 517-533 ◽  
Author(s):  
Érika Machado ◽  
Luís Fábio Silveira
Keyword(s):  
Seed Production ◽  
Breeding Season ◽  
Atlantic Forest ◽  
Short Distance ◽  
Movement Patterns ◽  
The Other ◽  
Southern Brazil ◽  
Migration Patterns ◽  
Other Hand ◽  
Resident Populations

Many species in the genus Sporophila are migratory. Migration patterns, while poorly studied, may be influenced by seed production which can be very seasonal in some regions. The distribution of S. bouvreuil extends from the Amazon and Suriname south through a large part of the open regions of Brazil. Sporophila pileata, on the other hand, is found in southeastern and southern Brazil as well as Argentina and Paraguay. Both of these species migrate, but their movement patterns are poorly known. To better understand the geographical and the seasonal distributions of S. bouvreuil and S. pileata, we grouped the records into two categories: the breeding season (September to March) and the putative migration season (April to August). We found two areas of sympatry between S. bouvreuil and S. pileata in the Brazilian states of Minas Gerais and São Paulo. For S. bouvreuil we suggest that populations that breed in the Amazon migrate to the Cerrado or Caatinga, where they will encounter resident populations of the same species. These resident populations may take part in short distance migrations. Sporophila pileata, on the other hand, occur in the Cerrado and open areas within the Atlantic Forest and it is not yet possible to determine migratory tendencies or destinations in the non-breeding season.

Validation of a screening instrument for postpartum depression in Southern Brazil

2009 ◽  
pp. 1-11
Author(s):  
Carlos Zubaran ◽  
Katia Foresti ◽  
Marina Verdi Schumacher ◽  
Aline Luz Amoretti ◽  
Lucia Cristina Muller ◽  
...  
Keyword(s):  
Postpartum Depression ◽  
Screening Instrument ◽  
Southern Brazil

Observation on the breeding biology of Polypedates teraiensis (Dubois, 1987) (Amphibia: Rhacophoridae)

2017 ◽  
Vol 17 (1) ◽  
pp. 25-32
Author(s):  
Jacinta Lalchhanhimi ◽  
Lalremsanga H.T.
Keyword(s):  
Sexual Dimorphism ◽  
Breeding Season ◽  
Sound Production ◽  
Reproductive Function ◽  
Breeding Biology ◽  
Tree Frog ◽  
University Campus ◽  
Morphometric Measurements ◽  
Advertisement Calls ◽  
Males And Females

The breeding biology of tree frog, Polypedates teraiensis was studied during the breeding season at Mizoram University Campus. It was found that sound production by male during the breeding season was primarily a reproductive function and advertisement calls attract females to the breeding areas and announce other males that a given territory is occupied. The aim of this study was to provide the detailed information on the breeding behaviour and the advertisement calls of Polypedates teraiensis. The morphometric measurements of the amplecting pairs (males and females) for sexual dimorphism along with clutch sizes were also studied.

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