Abstract Determining the genetic structure of tropical bird populations is important for assessing potential effects future habitat fragmentation and testing hypotheses about evolutionary mechanisms promoting diversification. Here we used 10 microsatellite DNA loci to describe levels differentiation five lek‐mating blue manakin ( Chiroxiphia caudata ), sampled along a 414‐km transect within largest remaining continuous tract highly endangered Atlantic Forest in southeast Brazil. We found...

O turismo de observação cetáceos é uma atividade para ver, ouvir ou nadar com das 90 espécies-chave cetáceos. Embora exista regulamentação legal, diversas áreas desses animais sofrem a ausência ordenamento suas atividades. objetivo deste estudo foi testar eficácia da ferramenta videomonitoramento, verificar conformidade dos barcos turísticos, que realizam passeios observar botos-cinza (Sotalia guianensis), vigente em área costeira protegida. videomonitoramento realizado na Zona Uso Restrito...

ABSTRACT Here we report massive seed predation of Pseudobombax grandiflorum (Bombacaceae) by Botogeris versicolurus (Psittacidae) in a forest fragment Brazil. The intensity was very high when compared to other studies continuous forest, perhaps resulting from scarcity resources such areas. This may limit the range parrot's diet few plant species. It suggests that Psittacidae be important for conservation some plants fragments.

Several plant characteristics, such as fruit production, nutrient reward, secondary compounds, and color display, affect choice by birds. On the other hand, several bird attributes their efficiency dispersers. Here we investigate ornithochoric seed dispersal of Pera glabrata Schott (Euphorbiaceae) in a cerrado fragment southeastern Brazil. A set attributes, frequency visits, number diaspores eaten, time spent foraging, methods taking handling agonistic interactions were analyzed order to...

AbstractHuman presence and activities are considered to be a potential threat many species, mainly because they interfere with the abilities of animals exploit essential resources. In this study we investigate influence human on behaviour nine shorebird species in an intertidal area at Baía de Todos os Santos, north-eastern Brazil. The is used both by shorebirds traditional community extract invertebrates for food, also people recreation. We analyse compare foraging under three different...

Cetacean calves are considered fragile and vulnerable, especially in the first year of life. To guarantee safety increase likelihood survival, females with use habitats unique characteristics, called nursery areas. In present study, we investigated whether Guiana dolphin Sotalia guianensis, a threatened species Brazil, uses Tibau do Sul Coastal Wildlife Reserve (REFAUTS) as area. We identified dolphins through photographs recorded composition groups during 41-day sampling period, between...

The Wilson's Plover (Charadrius wilsonia) is widely distributed along the coast of Americas. We present first reproductive record in Baía de Todos os Santos, Brazil, broadening southernmost limit its breeding area Atlantic Coast to 12° 44′ S, 38° 45′ W. recorded a family with subadult 2007, and chicks nest 2008. female invested more time incubation than male 96 hrs diurnal observations. There were 102 interruptions during due approximation domestic animals (cattle horses). was abandoned 9...

O turismo de observação cetáceos (TOC) pode contribuir para a conservação e desenvolvimento econômico local. Este estudo teve como objetivo caracterizar o botos-cinza, forma subsidiar plano manejo da Reserva Faunística Costeira Tibau do Sul (REFAUTS). Durante quatro expedições à área estudo, foram realizadas entrevistas com mestres embarcação, censos vistorias nas embarcações licenciadas registro fluxo TOC. Nós registramos 11 operando na REFAUTS, 368 passeios durante 16 dias amostragem um...

Neotropical parrots are among the most threatened groups of birds in world, and many species facing extinction a near future. At same time, taxonomic position remains unclear. Karyotype analysis has been used to elucidate phylogenetic status bird groups, also providing important information for both situ ex conservation plans. The objective present study was describe first time karyotypes endangered Hyacinth Macaw, Anodorhynchus hyacinthinus, Hawk-headed Parrot, Deroptyus accipitrinus. A...

Randomly amplified polymorphic DNA (RAPD) markers were used to analyze genetic differentiation among three populations of the endemic Black-cheeked Gnateater (Conopophaga melanops melanops) within a larger pristine reminiscent Brazilian Atlantic Forest. Analyses molecular variance (AMOVA) (phiST=0.13149, P<0.0001) and nonparametric test for homogeneity (HOMOVA) (B=0.32337; P=0.0019) showed statistically significant divergence in continuous transect 250 km. Some hypothetic explanations these...

Programa de Pos-graduacao em Ambiente, Tecnologia e Sociedade – PPGATS, Universidade Federal Rural do Semiarido UFERSA, Campus Mossoro, Av. Francisco Mota, 572, CEP 59625-900, RN, Brazil*e-mail: lunardi.vitor@ufersa.edu.brReceived: November 19, 2014 Accepted: May 5, 2015 Distributed: 30,

Behavioral and morphological characters, as well DNA hybridization sequencing data strongly suggests that New Old World Psittacidae evolved independently, supporting the tribe status for American species (Arini). However, genera relationships within this group remain poorly known, convergence was detected in various which could lead to artificial classifications. Most authors have subdivided Arini 2 monophyletic groups based on comparative length of tail, what is still controversial. In...

Here we report massive seed predation of Pseudobombax grandiflorum (Bombacaceae) by Botogeris versicolurus (Psittacidae) in a forest fragment Brazil. The intensity was very high when compared to other studies continuous forest, perhaps resulting from scarcity resources such areas. This may limit the range parrot’s diet few plant species. It suggests that Psittacidae be important for conservation some plants fragments.

The Neotropical palm swift, Tachornis squamata Cassin, 1853 (Apodidae), inhabits forests in the northern, northeastern and central regions of South America. At Chapada do Apodi, Brazilian Caatinga, we investigated how swifts use trees to roost two areas: urban exurban. From May November 2011 from March June 2012, out breeding season species, compared differences between descriptive parameters palm-roosts activity levels exurban roosting. We sampled 30 carnauba areas 32 26 Chinese fan for a...

A Reserva Faunística Costeira de Tibau do Sul (REFAUTS), praia Pipa, RN, vem sofrendo transformações quanto ao uso e ocupação solo, como consequência crescimento turístico na região. Assim, o objetivo deste estudo foi avaliar da REFAUTS longo quatro décadas. Foram utilizadas imagens satélite dos anos 1984, 1994, 2004 2015. Estas foram classificadas tematicamente acordo com categorias predeterminadas (água, vegetação arbórea, herbácea edificações/solo exposto). Adicionalmente, registrados os...

Information on the breeding behavior of Red-ruffed Fruitcrow (Pyroderus scutatus) is scarce and restricted to subspecies P. s. granadensis orenocensis. We found first nest nominate (P. in an Atlantic Forest area southeastern Brazil 28 November 2004. The contained two nestlings was built a horizontal fork, 16.7 m above ground. It cup-shaped with substantial base composed twigs: outside diameter 38 cm, cup 16.5 height 11.3 inside 5 cm. were thickly covered brownish down. Only one unknown...

Handroanthus impetiginosus (Bignoniaceae) is commonly used in urban afforestation the Brazilian semiarid, and it attracts native fauna during dry season, when plants are flowering. We conducted focal observations on nine flowering H. an area at semiarid to record bird species that flowers as a food resource their behavior. recorded four of visiting birds flowers: Eupetomena macroura , Chlorostilbon lucidus Icterus pyrrhopterus Tangara sayaca . Of these, E. C. were observed illegitimate...