Articles by Author: Carlos R Sanquetta

Search results for Carlos R Sanquetta

We found 25 results for you
  1. Volume estimation of <em>Cryptomeria japonica</em> logs in southern Brazil using artificial intelligence models

    Volume estimation of <em>Cryptomeria japonica</em> logs in southern Brazil using artificial intelligence models

    Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science
    This study aimed to test taper functions and artificial intelligence (AI) models in order to estimate merchantable volumes of Japanese cedar (Cryptomeria japonica) trees in a homogenous plantation in southern Brazil. A total of 30 individuals were rigorously scaled and...
  2. Normative reasons and the possibility of motivation

    Normative reasons and the possibility of motivation

    Item type: Journal Article • Journal: South African Journal of Philosophy
    This article defends a claim about the conditions under which agents possess normative reasons for action. According to this claim, an agent has a normative reason to ϕ only if it's psychologically possible for that reason to motivate the agent...
  3. FLUIDIFICATION OF QUIVERS AND THE TIETZE EXTENSION THEOREM FOR DIAGRAMS OF TOPOLOGICAL SPACES

    FLUIDIFICATION OF QUIVERS AND THE TIETZE EXTENSION THEOREM FOR DIAGRAMS OF TOPOLOGICAL SPACES

    Item type: Journal Article • Journal: Quaestiones Mathematicae
    For quivers with no directed cycles, the concept of fluidification is defined and used to prove that, under corresponding assumptions, the Tietze extension theorem for diagrams of topological spaces modeled on such quivers holds. Another application of the given concept...
  4. Fecundity and sexual maturity of the crab <em>Macrophthalmus depressus</em> (Brachyura: Ocypodidae) from Inhaca Island, Mozambique

    Fecundity and sexual maturity of the crab <em>Macrophthalmus depressus</em> (Brachyura: Ocypodidae) from Inhaca Island, Mozambique

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    Some reproductive aspects of the ocypodid crab Macrophthalmus depressus, were investigated, with emphasis on fecundity and sexual maturity. Random intertidal crab samples taken in October 2002 were identified, sexed, measured, checked for the presence of eggs on female pleopods, dissected...
  5. Are mist-nets suitable for rapid habitat evaluations in the tropics? Results from a study in Guinea-Bissau

    Are mist-nets suitable for rapid habitat evaluations in the tropics? Results from a study in Guinea-Bissau

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
    Catry, P., Araújo, A., Cruz, C., Pinheiro, A., Poças, M., Nadum, J., Armelin, M.& Pereira, J.R. 1999. Are mist-nets suitable for rapid habitat evaluations in the tropics? Results from a study in Guyinea-Bissau. Ostrich 70(2) 134–137
  6. Probable population decline of the Little Bustard <em>Tetrax tetrax</em> in north-west Africa

    Probable population decline of the Little Bustard <em>Tetrax tetrax</em> in north-west Africa

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
    To document the population trend of the Little Bustard in north-west Africa, we performed an extensive literature review, and conducted six surveys in seven areas with potentially suitable habitat in north-western Morocco between 1999 and 2005. Both the number of...
  7. DNA sequences from the Little Brown Bustard <em>Eupodotis humilis</em> suggest its close phylogenetic relationship to the Little Bustard <em>Tetrax tetrax</em>

    DNA sequences from the Little Brown Bustard <em>Eupodotis humilis</em> suggest its close phylogenetic relationship to the Little Bustard <em>Tetrax tetrax</em>

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
    Taxonomic classification of birds based exclusively on morphology and plumage traits has often been found to be inconsistent with true evolutionary history when tested with molecular phylogenies based on neutrally evolving markers. Here we present cytochrome-b gene sequences for the...
  8. Modelling dominant height and site index in different edaphoclimatic zones of <em>Nothofagus dombeyi</em> secondary forest in the Andes of south-central Chile

    Modelling dominant height and site index in different edaphoclimatic zones of <em>Nothofagus dombeyi</em> secondary forest in the Andes of south-central Chile

    Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science
    Nothofagus dombeyi grows in a wide variety of sites. The information about its productivity is still scarce, which makes it difficult for foresters and landowners to take decisions about the best practices to maintain and/or improve the goods and services...
  9. Three new and important insect pests recorded for the first time in Colombian plantations

    Three new and important insect pests recorded for the first time in Colombian plantations

    Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science
    Subsequent to 1950, commercially propagated and non-native trees, including Pinus, Eucalyptus and Cupressus species in Colombian plantations, have been damaged by several native defoliating insects, residing mainly in the Lepidoptera (Geometridae), Phasmatodea (Heteronemiidae) and the Hymenoptera (Formicidae). We report on...