Results 111 to 120 of about 14,306 (211)
Morphology and tructure of the pollen cone and pollen grain of the Araucaria species from Argentina [PDF]
, 2008 The pollen cone and the pollen grain of the two Argentinean species of Araucaria are described with LM, SEM and TEM. Primordia of pollen cones are formed in April and May and reach maturity by mid-October in A. angustifolia (Bert.) O.
Caccavari, Marta Alicia +2 more
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Dendrochronology of species from Brazilian Araucaria Forest, Candoi, PR
, 2010 In the present work the dendrochronological potential of six species of the Araucaria Forest is analyzed. The trunks of 20 trees were collected in Candoi, State of Parana, Brazil, from an area that belongs toELEJOR, Centrais Elétricas do Rio Jordão, for the following species: Araucaria angustifolia, Clethra scabra, Cedrela lilloi, Ocotea porosa ...
Mattos, Patricia Póvoa de +3 more
openaire +1 more source
Studies on the lichen genus Sticta (Schreber) Ach. : 5., Australian species [PDF]
, 1998 Twenty five species of Sticta occur in Australia. These are: Sticta baileyi, S. brevipes, S. camarae, S. caperata, S. cyphellulata, S. diversa, S. duplolimbata, S. filix, S. flavocyphellata, S. fuliginosa, S. howei, S. hypopsiloides, S.
Galloway, David J.
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Paisajes culturales en cambio bajo el impacto del exilio, las diásporas y el retorno de la emigración [PDF]
, 2018 This article discusses the impact of territorial displacement on Argentina, Chile, Paraguay and Uruguay during the cycle of dictatorships and democratization of the late twentieth century and early twenty-first century.
Roniger, Luis
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O reflexo da defaunação para uma espécie ameaçada: o caso da Araucaria angustifolia em paisagem de campo em Santa Catarina [PDF]
, 2017 TCC (graduação) - Universidade Federal de Santa Catarina. Centro de Ciências Agrárias. Curso de Agronomia.Ambientes naturais degradados e aumento da caça ilegal podem produzir desequilíbrios na composição e interação das espécies.
Vieira, Willian
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Records on the distribution of Ptychanthoideae (subfam. of Lejeuneaceae, Hepaticae) in Australia [PDF]
, 2003 Three species are new for the Northern Territory of Australia: Acrolejeunea securifolia (Nees) Steph. ex Watts ssp. securifolia, Archilejeunea planiuscula (Mitt.) Steph. and Mastigolejeunea ligulata (Lehm.
Sass-Gyarmati, Andrea
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, 2017 Forest fragmentation and the use of landscape matrices by agricultural and forest cultures can change the species composition such that these will no longer reflect the structure of the native forests. Thus, fragments can lose their potential to provide propagules for restoration once they lose species, or when its structure is changed due to ...
Ferreira, Paula Iaschitzki +4 more
openaire +1 more source
BirdsThe Brazilian Araucaria Forest (AF) now covers only 1% of its original extent due to significant degradation, making conservation a challenge. The AF occurs in a mosaic alongside grassland and Atlantic Forest ecosystems, influencing bird species ...
Carla Suertegaray Fontana +7 more
doaj +1 more source
Additions to the Bryophyte Flora of the Neotropics [PDF]
, 2004 New and remarkable records of bryophytes from Venezuela, Brazil, Costa Rica and Ecuador are reported. Diphyscium chiapense and Hedwigia ciliata var. leucophaea are new to South America.
Lüth, Michael, Schäfer-Verwimp, Alfons
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Bosque (Valdivia)Los bosques requieren un manejo sostenible debido al largo ciclo de las especies, por el equilibrio del ecosistema, por la estructura o procesos de los que dependen las especies y por el desarrollo socioeconómico. Este estudio muestra el efecto de la adopción de medidas de protección (no manejado, conservación) y sus resultados para la estructura del ...
Hess, André Felipe +7 more
openaire +2 more sources