A5073891931- Fish biology, ecology, and behavior
- Fish Biology and Ecology Studies
- Fish Ecology and Management Studies
- Wildlife Ecology and Conservation
- Primate Behavior and Ecology
- Wildlife-Road Interactions and Conservation
- Animal Vocal Communication and Behavior
- Evolution and Paleontology Studies
- Aquaculture Nutrition and Growth
- Microplastics and Plastic Pollution
- Chromosomal and Genetic Variations
- Environmental Sustainability and Education
- Amphibian and Reptile Biology
- Bat Biology and Ecology Studies
- Marine animal studies overview
- Science and Education Research
- Zoonotic diseases and public health
- Animal and Plant Science Education
- Neuroendocrine regulation and behavior
- Ecology and biodiversity studies
- Animal Behavior and Welfare Studies
- Animal Behavior and Reproduction
- Isotope Analysis in Ecology
- Plant and animal studies
- Environmental Toxicology and Ecotoxicology
Universidade Estadual de Londrina
2016-2025
Universidade Estadual Paulista (Unesp)
2009-2012
National University of Misiones
2004
Tool use to crack open palm nuts has been observed extensively in some capuchin monkey species. However, for southern black-horned monkeys (Sapajus nigritus cucullatus), there is only one published record of stone tool from the 1990s, an urban park Londrina, Brazil. In present study, we returned this systematically investigate hammer-and-anvil sites used by population. We analyzed fruit and shell remnants resulting hammering test following hypotheses: (1) hammers at tool-use are actively...
Abstract Brazil is a megadiverse country and participant of fundamental environmental agreements for biodiversity conservation. However, the internal politics cultures that affect negatively ecological integrity in Brazilian freshwater need to be improved on condition sustainable management. Scientific community, government stakeholders are constant conflicts goals. Meanwhile, current model aquaculture shows problems impact due lack appropriated planning legislation aquatic biota. The...
Non-native species are a major driver of biodiversity loss. Aquaculture activities play key role in introductions, including the escape fishes from fish farm facilities. Here, impact flooding due to El Niño rains 2015/2016 Lower and Middle Paranapanema River basin, southern Brazil, was investigated by evaluating escapes 12 farms. The resulted approximately 1.14 million into river, encompassing 21 three hybrids. were most abundant escapees, especially Oreochromisniloticus (Linnaeus, 1758)...
We evaluated the feeding of fish species Nova Avanhandava Reservoir, low Tietê River, São Paulo State, Brazil. Fishes were collected in two stretches reservoir: Santa Bárbara (14 samples) and Bonito (two between September 2002 March 2004, using gill seining nets. The results stomach contents analysis expressed with frequency occurrence gravimetric method, combined Alimentary Index (AI). 20 studied consumed 52 food items, grouped 10 categories: aquatic insects, terrestrial crustaceans, fish,...
The Neotropical region hosts 4225 freshwater fish species, ranking first among the world's most diverse regions for fishes. Our NEOTROPICAL FRESHWATER FISHES data set is to produce a large-scale inventory, covering entire from Mexico and Caribbean in north southern limits Argentina, Paraguay, Chile, Uruguay. We compiled 185,787 distribution records, with unique georeferenced coordinates, represented by occurrence abundance data. number of species numerous orders are as follows: Characiformes...
Abstract: The Paranapanema River is an important, extensively explored tributary of the Upper Paraná basin. fish fauna has been investigated since 1990s; however, no study characterized richness species throughout basin, including main channel river, marginal lagoons, its tributaries, and sub-tributaries. Thus, we performed a review with 90 independent studies conducted at upper, middle, lower sections We recorded 225 species, which 165 were native, 60 non-native. found that 77% within basin...
Abstract In primates, same-sex and immature sexual behaviour is widespread can include mounting genital presentation. These patterns be observed in multiple social contexts across all ages, serve functions such as appeasement, reconciliation, practice dominance assertion. this study, we investigated a group of robust capuchins ( Sapajus nigritus ) living an Atlantic forest fragment urban areas. We predicted that order to sex, dyads and/or included immatures would resemble the adult...
O aquarismo é um hobby praticado mundialmente com aumento de popularidade no Brasil nas últimas décadas. A soltura peixes ornamentais em ambientes naturais equivocada, sendo considerada introdução espécies e crime ambiental. Dessa maneira, objetivou-se verificar a existência registros solturas disponíveis na web, mídia social Youtube™ Brasil. busca por vídeos situações ou descarte foi realizada entre julho dezembro do ano 2018, totalizando-se 616 horas busca. Como resultado, obteve-se 48...
Abstract Seventeen specimens of Pimelodella aff. avanhandavae from the Tibagi River (Paraná state, Brazil) were analyzed. The diploid number 52 chromosomes was observed and karyotype composed by 30M 22SM with fundamental (FN) 104. Results analyses nucleolus organizer regions (NORs), obtained AgNO3 CMA3, staining FISH 18S rDNA probe showed fluorescence in a terminal position on short arm pair subtelocentric chromosomes. C-banding evidenced weakly telomeric centromeric some present conspicuous...
Several studies of small watersheds in the Upper Paraná River basin are currently available. Howev-er, number and extent its tributary streams still pose a challenge to enhancing current knowledge their ichthyofauna. This study aimed survey fish fauna three Lower Paranapanema basin, state Paraná, Brazil (Capim, Tenente Centenário streams). The sampling included 3,167 specimens belonging five orders, 17 families 56 species. presented differences species richness (Centenário Stream: 41...
The aim of this study is to report the presence a three non-native hybrid long-whiskered catfishes (family Pimelodidae) in Upper Paraná River basin, Brazil. Genetic analyses demonstrated that presumptive hybrids were result crossbreeding Pseudoplatystoma reticulatum (central Amazonas basin and Lower River) Leiarius marmoratus (Amazonas, Essequibo Orinoco rivers), producing commonly known Brazil as cachandiá. potential threat biodiversity, due possible genetic contamination, competition...
Abstract. Garcia DAZ, Vidotto-Magnoni AP, Costa ADA, Casimiro ACR, Jarduli LR, Ferraz JD, De Almeida FS, Orsi ML. 2019. Importance of the Congonhas River for conservation fish fauna Upper Paraná basin, Brazil. Biodiversitas 20: 474-481. The basin is among most fragmented watersheds in world. belongs to this drainage system, which has its mouth Capivara Reservoir and can be considered largest tributary free-from-dam, becoming important maintenance species richness. In order know more about...
We analyzed cytogenetically specimens of Pimelodella meeki from Tibagi River at Limoeiro (LM) and two tributaries, Couro do Boi (CB) Gabriel da Cunha (GC) Rivers. All presented 2n=46 chromosomes, which were the karyotypes composed by 15 pairs metacentric (M) + 6 submetacentric (SM) 2 subtelocentric (ST). In GC, CB, LM, results analyses nucleolus organizer regions (NORs), done means AgNO3 CMA3 staining, showed that they are identical, located in terminal position on short arm a SM chromosome...
This study describes the invasion of upper Paraná River basin by Pterygoplichthys ambrosettii based on a literature review and field samples. has been reported in 42 localities throughout basin, including Tietê, Paranapanema, Paraná, Grande Aguapeí rivers. The ascent P. after inundation Sete Quedas Falls release individuals aquarium hobbyists were primary drivers this invasion.
Myocastor coypus is a large semi-aquatic rodent ranked as one of the 100 most invasive species in world. In Brazil, few ecological studies have been proposed to understand relationship this with environment. To date, drivers that facilitate its establishment new areas remain unknown. However, it generally accepted natural distribution limited far southern Brazil. The present study aimed geographic M. and indicate greater risk based on bioclimatic predictors surveillance map. We observed...
http://dx.doi.org/10.5007/2175-7925.2016v29n1p67Estudos sobre caracterização da dieta de peixes representam um instrumento que permite determinar relações nas cadeias tróficas, definir hábitos alimentares e a ocupação habitats os nichos tróficos das espécies. Para Rhinodoras dorbignyi, foram realizadas seis coletas bimestrais no alto rio Paranapanema, SP, durante o período abril 2010 fevereiro 2011. Dos 63 indivíduos capturados, 30 apresentaram algum conteúdo estômago, sendo utilizados neste...
Morcegos são conhecidos por sua importância na regulação dos ecossistemas e no seu envolvimento polinização dispersão de sementes. Espécies morcegos fitófagos como, exemplo, Artibeus lituratus ocupam com frequência áreas alteradas ou até mesmo regiões urbanas. O objetivo deste estudo foi investigar a dieta A. campus da Universidade Estadual Londrina, um fragmento florestal alta interferência antrópica. Foram realizadas quatro coletas mensais, entre outubro 2012 setembro 2013, utilizando...