Albinism is a type of deficient in melanin production could be the result of genetic anomalies that are manifest as the absence of coloration of part or the entire body of an organism. This type of chromatic disorder can affect several vertebrate species, but is rarely found in nature. Among bats, more than 450 cases of total or partial loss of body pigmentation have been reported. Herein we provide the first report of albinism for the bat species Peropteryxkappleri (Chiroptera: Emballonuridae) with two such specimens being observed from iron formation caves in a conservation unit “Floresta Nacional de Carajás”, Amazon forest, northern of Brazil.

We surveyed the nematode assemblages associated with populations of the parthenogenetic whiptail lizard Ameivula nativo from six coastal restinga areas in eastern Brazil: Setiba, Comboios and Guriri (State of Espirito Santo) and Guaratiba, Prado and Maraú (State of Bahia). A total of five nematode species (Physaloptera retusa, Physalopteroides venancioi, Skrjabinelazia intermedia, Subulura lacertilia and Parapharyngodon sp.) were recorded from the six different populations of A. nativo. There was considerable variation in overall prevalence of infection (1-42%) among study sites, but geographical distance among areas did not influence similarity in the composition of nematode assemblages. Overall intensity of infection was not affected by lizard body size and did not seem to affect host body condition, based on pooled data of all populations. The studied populations of the unisexual A. nativo had relatively low prevalences and intensities of infection compared to some bisexual congeners and to sympatric lizards from other families for which such data are available. We believe that the low richness of the nematode fauna associated with A. nativo, both locally and regionally, may reflect its narrow geographic distribution and the low diversity of habitats it occupies.

Resumo O trabalho apresenta uma análise do comportamento de uma rede em malha sem fio portuária com tráfego característico do sistema RFID. Nesta rede, é analisada a eficiência dos protocolos de roteamento para o cenário proposto. Este cenário é composto por nós mesh e nós clientes em movimento que realizam o controle e monitoramento de cargas do porto. Os protocolos de roteamento foram analisados com base em métricas como vazão e atraso simulando tráfego de um sistema RFID. O protocolo de roteamento OLS R obteve o melhor desempenho tanto na vazão como no atraso quando comparado aos outros protocolos de roteamento testados. Palavras-Chave Redes em Malha sem Fio, protocolos de roteamento, RFID, NS-3.