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Transferência e reorganização dos arquivos do Departamento de Biologia
Nepomuceno, Danrley da Silva; Silva, Natali Ferreira da; Cascon, PauloEu Danrley Da Silva Nepomuceno, discente beneficiado com o programa bolsa de iniciação acadêmica (BIA) da Pró - Reitoria de assuntos estudantis (PRAE) tendo como responsável o professor Paulo Cascon, fui primeiramente, direcionado para efetuar o trabalho de transferir e reorganizar os arquivos do Departamento de Biologia-UFC. Entretanto, esta locação, por sua vez, não estava preparada ainda para a realização do...
How aggressive calls of a Neotropical treefrog vary among different levels of s...
Brasileiro, Ana C.; Cascon, Paulo; Passos, Daniel C.The treefrog Pithecopus nordestinus emits aggressive calls during agonistic interactions between males, but how these vocalizations vary between contexts with different levels of aggression remains unknown. Herein, we compared the acoustic parameters of aggressive calls emitted during physical disputes and out of fight contexts. The aggressive calls emitted during physical clashes (Fighting Calls) presented a r...
Are good fighters also good singers? The relationship between acoustic traits a...
Brasileiro, Ana C.; Lima-Araujo, Frede; Passos, Daniel C.; Cascon, PauloMorphological characteristics are known to be important predictors of victory in aggressive disputes in the animal world. Among anurans, however, acoustic communication also plays an important role in intrasex conflicts. Although there is evidence for the influence of spectral parameters of calls (e.g., fundamental and dominant frequencies) in anuran disputes, the role that temporal parameters (e.g., duration a...
Ecological responses of two shrimp populations (Palaemonidae) to seasonal abiot...
Lucena, Isis C. de; Nascimento, Whandenson M. do; Pinheiro, Allysson P.; Cascon, PauloThe objective of this study was to evaluate if seasonal abiotic factor variations (pluviosity, depth, temperature, dissolved oxygen, hydrogen potential, ammonia and electrical conductivity) in a northeastern semiarid reservoir influence abundance and population structure variations in Palaemonidae Macrobrachium amazonicum and M. jelskii shrimp. Data were collected bimonthly from 30 reservoir sampling sites from...
Aspectos socioambientais e legais da bananicultura na apa da na APA da Serra de...
Lima, Daniel Cassiano; Cascon, PauloThis article addresses the problem of the irregular installation of banana plantations in Serra de Maranguape (CE), based on the Brazilian Environmental Legislation, and on the social and environmental conditions of banana growers. The research was developed based on the literature review and application of face-to-face and objective questionnaires. It was found that most of them had no schooling and were unawa...
Novel surfactant proteins are involved in the structure and stability of foam n...
Hissa, Denise Cavalcante; Vasconcelos, Ilka Maria; Carvalho, Ana Fontenele Urano; Nogueira, Vanessa Lúcia Rodrigues; Cascon, PauloMany amphibians lay their eggs in foam nests, which allow the eggs to be deposited out of the water. Analysis of some of these foam nests has revealed that they are a rich source of proteins with unusual primary structures and remarkable surfactant activity, named ranaspumins. The aim of this work was to study the foam nests of the frog Leptodactylus vastus in order to obtain information regarding their composi...
Annellida, Hirudinea, Piscicolidae, Stibarobdella macrothela (Schmarda, 1861): ...
Alves, Jessika O. P.; Monteiro, Felipe A. C.; Cascon, Helena Matthews; Cascon, PauloThis is the first report of Stibarobdella macrothela, a parasitic marine leech, for Ceará (Northeastern Brazil), the second report for Brazil, and the first report for the genus Stibarobdella in Northeastern Brazil. Two specimens separated from the host shark Carcharhinus sp. were identified in the invertebrate collection at LIMCe (Laboratório de Invertebrados Marinhos do Ceará, Universidade Federal do Ceará). ...
Ecological trap for Cnemidophorus ocellifer Spix 1825 (Squamata: Teiidae) durin...
Brito, Lucas Bezerra; Roberto, Igor Joventino; Cascon, PauloAnimals must anticipate future conditions according to current environmental clues. When habitats are rapidly modified, these signs may not reflect the actual environmental quality, leading to a decreased fitness of an individual and its population. During an activity of faunal rescue and scaring away in the coast of Rio Grande do Norte, Brazil, evidence of an ecological trap for the lizard Cnemidophorus ocelli...