32 research outputs found

    Size Doesn't Matter: Towards a More Inclusive Philosophy of Biology

    Get PDF
    notes: As the primary author, O’Malley drafted the paper, and gathered and analysed data (scientific papers and talks). Conceptual analysis was conducted by both authors.publication-status: Publishedtypes: ArticlePhilosophers of biology, along with everyone else, generally perceive life to fall into two broad categories, the microbes and macrobes, and then pay most of their attention to the latter. ‘Macrobe’ is the word we propose for larger life forms, and we use it as part of an argument for microbial equality. We suggest that taking more notice of microbes – the dominant life form on the planet, both now and throughout evolutionary history – will transform some of the philosophy of biology’s standard ideas on ontology, evolution, taxonomy and biodiversity. We set out a number of recent developments in microbiology – including biofilm formation, chemotaxis, quorum sensing and gene transfer – that highlight microbial capacities for cooperation and communication and break down conventional thinking that microbes are solely or primarily single-celled organisms. These insights also bring new perspectives to the levels of selection debate, as well as to discussions of the evolution and nature of multicellularity, and to neo-Darwinian understandings of evolutionary mechanisms. We show how these revisions lead to further complications for microbial classification and the philosophies of systematics and biodiversity. Incorporating microbial insights into the philosophy of biology will challenge many of its assumptions, but also give greater scope and depth to its investigations

    <title language="eng">Nova espécie e novo nome em Ocotea Aubl. (Lauraceae) para o Brasil

    No full text
    Uma nova espécie, Ocotea revolutifolia A. Quinet, e um novo nome, O. mandioccana A. Quinet, baseada em Persea riedelii Meisn., são propostas para o Brasil. São apresentadas descrições, ilustração, comentários sobre relações taxonômicas, status de conservação e distribuição geográfica das espécies.<br>A new species, Ocotea revolutifolia A. Quinet, and a new name, O. mandioccana A. Quinet, based on Persea riedelii Meisn., are proposed for Brazil. Descriptions, illustration, conservation status and comments on taxonomic relationships as well as geographic distribution are presented

    Uma nova espécie de Mezilaurus Taubert (Lauraceae) para a flora brasileira A new species of the genus Mezilaurus Taubert (Lauraceae) for the Brazilian flora

    Get PDF
    É descrita e ilustrada uma nova espécie de Mezilaurus Taubert (Lauraceae): Mezilaurus vanderwerffii F.M. Alves & J.B. Baitello, caracterizada por folhas densamente dotadas de pontoações glandulares na face adaxial. A espécie é relatada para o Cerrado, Cerradão, e Floresta Estacional Semidecidual do entorno do Pantanal Matogrossense.<br>The species was named Mezilaurus vanderwerffii F.M. Alves & J.B. Baitello and is characterized by leaves with dense, glandular dots on the adaxial surface. The species is reported for Cerrado, Cerradão, and Semideciduous Forest surrounding the Pantanal Matogrossense

    Nectandra Rol. ex Rottb. (Lauraceae) no Mato Grosso do Sul, Brasil

    Get PDF
    O trabalho apresenta o estudo taxonômico das espécies do gênero Nectandra no Mato Grosso do Sul, Brasil. Baseados na análise morfológica dos espécimes coletados em diferentes regiões do Estado são confirmados oito espécies de Nectandra: N. amazonum Nees, N. cissiflora Nees, N. cuspidata Nees, N. falcifolia (Nees) J.A. Castigl. ex Mart. Crov. & Piccinini, N. gardneri Meisn., N. hihua (Ruiz & Pav.) Rohwer, N. megapotamica (Spreng.) Mez e N. psammophila Nees. É fornecida uma chave de identificação para as espécies e apresentados descrições morfológicas, dados de distribuição geográfica, habitat, aspectos fenológicos, comentários taxonômicos e ilustrações para cada espécie.<br>This paper presents the taxonomic study of the species of Nectandra from Mato Grosso do Sul. Eight species of Nectandra were identified through the morphological analyses of specimens collected in different regions from the State: N. amazonum Nees, N. cissiflora Nees, N. cuspidata Nees, N. falcifolia (Nees) J.A. Castigl. ex Mart. Crov. & Piccinini, N. gardneri Meisn., N. hihua (Ruiz & Pav.) Rohwer, N. megapotamica (Spreng.) Mez and N. psammophila Nees. Identification key, morphological descriptions, geographic distribution, habitat, fenologic aspect, taxonomic comments, and illustrations are presented
    corecore