Many amphibians lay their eggs in foam nests, which allow the to be deposited out of water. Analysis some these nests has revealed that they are a rich source proteins with unusual primary structures and remarkable surfactant activity, named ranaspumins. The aim this work was study frog Leptodactylus vastus order obtain information regarding composition function improve understanding ranaspumins, probably novel class proteins. Analyses fluid showed carbohydrates presumably responsible for...

1 Universidade Federal do Ceara, Departamento de Engenharia Pesca, Mestrado em Pesca. Bloco 827, Campus Pici, Fortaleza, CE, 60035-000, Brazil. E-mail: livgurjao@yahoo.com. 2 Biomol-Lab/Elace. mfurtado98@hotmail.com. 3 Fundacao Rio Grande, Oceanografia. Caixa Postal 474, RS, 96201-900, posras@super.furg.br. 4 Biologia, Laboratorio Zoologia. 909, 60451-970, pc@ufc.br. * Corresponding author: Rua Paula Ney, 155/500, Aldeota, 60140-200, Phone/fax number: (85) 261 6611. FEEDING HABITS OF MARINE...

The study of ecological and behavioral aspects anuran reproduction is fundamental for the understanding evolution life history traits. In this we present temporal spatial patterns reproductive activity in Rhinella hoogmoedi, as well description its advertisement call, a population from remnant tropical rainforest Northeastern Brazil. Calling began before start rainy season lasted November to April; vocalization was not correlated with amount rainfall. Reproductive males called on variety...

Some amphibian species have developed a breeding strategy in which they deposit their eggs stable foam nests to protect and larvae. The frog are rich proteins (ranaspumin), especially surfactant proteins, involved the production of nest. Despite ecological importance for evolution conservation, biochemical composition, long-term stability even origin components still not completely understood. Recently we showed that Lv-RSN-1, 23.5-kDa protein isolated from nest Leptodacylus vastus, presents...

The genus Ozolaimus is characterised by presenting a dorsoventrally elongated mouth with two lateral lips, very long oesophagus consisting of anterior portion strong and short, fusiform fold, thin posterior ending in distinct bulb, an anteriorly dilated intestine, absent wings. Between February 2014 September 2016, 11 specimens the anuran Corythomantis greeningi were collected manually at Ecological Station Aiuaba, Ceará State, Brazil. After analysis, nine cirratus infecting large intestine...

The paleobiogeography of the theropod clade Compsognathidae is here reaccessed in order to test hypothesis this taxon being adapted specifically inhabit semi-arid environments. Data about localities where these fossils were collected and their paleoenvironments gathered from literature. Compsognathids seem be found especially sedimentary deposits known as Fossil Lagerstätten, which formed under a set specific conditions that allowed preservation fragile bone remains animals. This bias limits...

Amphibians play an important role in the energy flux between aquatic and terrestrial environments, exerting a "topdown" control on leaf-litter invertebrates many forested environments. In present study, we investigated activity patterns diet composition of Odontophrynus carvalhoi tropical rainforest within semi-arid area northeastern Brazil. There was positive correlation number recorded individuals amount rainfall day observations, three seven days prior to observations. Coleoptera,...

We investigated the species composition and reproduction of an anuran community in a Restinga habitat Ceará State north-eastern Brazil. Twenty four families were observed most these reproduced temporary ponds, whereas Boana raniceps Scinax x-signatus larger number reproductive sites micro-habitats. Vocalisation was seasonal, with majority showing activity only during rainy season. Only three also vocalised dry Increases vocalising associated increases rainfall humidity but appeared to fall...

The 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 population structure Palaemonidae Macrobrachium amazonicum M. jelskii shrimp. Data were collected bimonthly from 30 sampling sites October 2016 September 2017 during the dry rainy seasons. A principal component analysis determined factors that...

Gymnophionan amphibians are characterized mainly by having elongated bodies and lack of limbs poorly known because their secretive life habits. Most species fossorial, although some aquatic or semiaquatic. We describe a new semiaquatic caecilian, genus Chthonerpeton, from transition area between the Caatinga Cerrado biomes, along coastal vegetation State Piauí, northeastern Brazil. The is very similar to Chthonerpeton perissodus noctinectes in annular counts but differs number cloacal...

The treefrog Pithecopus nordestinus emits aggressive calls during agonistic interactions between males, but how these vocalizations vary contexts with different levels of aggression remains unknown. Herein, we compared the acoustic parameters emitted physical disputes and out fight contexts. clashes (Fighting Calls) presented a repetition rate, duration number pulses significantly higher than those Our results expand knowledge about repertoire Phyllomedusidae treefrogs contribute to...

Currently, 56 species of Parapharyngodon are known, with only 12 reported from the Neotropical realm. pereiramendoi sp. n. is described herein host anuran Corythomantis greeningi in Caatinga biome, a Brazilian semiarid region. In males present triangular oral opening four bilobed lips, each one pair distally located rounded papillae, gubernaculum absent, short V-shaped support postanal and three pairs caudal while females have postbulbar excretory pore, vulva equatorial position, conical...

Chytridiomycosis, caused by the fungus Batrachochytrium dendrobatidis (Bd), has affected amphibians globally since 1970s, being considered main cause of their decline worldwide. The present study is first to assess presence Bd in anuran populations dry and wet tropical forests Ceará state, northeastern Brazil. Samples were collected different environmental landscapes throughout dominant Caatinga relict moist forest (brejos de altitude) localities Monte Alegre Private Natural Heritage...

Between 1996 and 1999 four stomach contents of two sperm whale species were collected, three Physeter macrocephalus one Kogia breviceps. A total 2,779 squid beaks was obtained from the stomachs P. specimens. Those mollusks identified as belonging to at least 15 families squids (Alloposidae, Ancistrocheiridae, Architeuthidae, Chiroteuthidae, Cranchiidae, Enoploteuthidae, Gonatidae, Histioteuthidae, Mastigoteuthidae, Octopoteuthidae, Ommastrephidae, Onycoteuthidae, Pholidoteuthidae,...

In this research, we compared the influence of climate change on geographic distribution between anuran species occurring only in Brazilian semi-arid region (Caatinga domain) and congeneric with a wider distribution. The central hypothesis tested is that will be more negative for than To end, using ecological niche modeling, designed potential models two metrics (suitability extent occurrence index) endemic to Caatinga those Suitability indicates probability was calculated each as average...

Animals must anticipate future conditions according to current environmental clues. When habitats are rapidly modified, these signs may not reflect the actual quality, leading a decreased fitness of an individual and its population. During activity faunal rescue scaring away in coast Rio Grande do Norte, Brazil, evidence ecological trap for lizard Cnemidophorus ocellifer was observed. We suggest some actions which can minimize impact vegetation removal activities on lizards, such as: i)...