Results 81 to 90 of about 32,117 (303)

Fredericella tenax Wood & Okamura 2017, n. sp.

open access: yes, 2017
Fredericella tenax, n. sp. (Fig. 9) Fredericella australiensis browni DuBois-Reymond Marcus, 1953, p. 152, pl. 2; not Fredericella australiensis browni Rogick, 1945. Material examined. Holotype: ZUEC BRY 51, collected 19 January 2016 by B. Okamura
Wood, Timothy S., Okamura, Beth
core   +1 more source

Helicodochium, a new microfungus from submerged wood in Brazil

open access: yesMycotaxon, 2014
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Josiane Santana Monteiro   +2 more
openaire   +1 more source

From armadillos to sloths: Patterns and variations in xenarthran coronary anatomy

open access: yesThe Anatomical Record, EarlyView.
Abstract Species of the superorder Xenarthra play a vital ecological role in the Neotropics. Despite their evolutionary significance, anatomical studies on their coronary circulation remain scarce. This study investigated the coronary anatomy of 82 hearts from nine Xenarthra species across the Dasypodidae, Myrmecophagidae, and Bradypodidae.
Wilson Viotto‐Souza   +5 more
wiley   +1 more source

How environmental factors condition natural regeneration in the altitudinal gradient of a montane rainforest

open access: yesiForest - Biogeosciences and Forestry
The response of plant species to the variation in abiotic factors affects the regeneration capacity and, consequently, the structure of the forest community.
Braga Rodrigues Duarte V   +4 more
doaj   +1 more source

Morphological variation in atlas and axis of Neotropical spiny rats (Rodentia, Echimyidae)

open access: yesThe Anatomical Record, EarlyView.
Abstract The unique morphologies of the first two cervical vertebrae, the atlas and axis, represent a significant innovation in mammalian evolution. These structures support the weight of the head and enable intricate movements of the head and neck.
Thomas Furtado da Silva Netto   +3 more
wiley   +1 more source

Much more than their fangs: Macroscopic anatomy of the brain of Bothrops moojeni Hoge 1966 (Squamata, Serpentes, Viperidae)

open access: yesThe Anatomical Record, EarlyView.
Abstract Neuroanatomical research has progressed considerably in several vertebrate lineages, yet studies of reptilian brain morphology remain markedly underdeveloped. Here we provide the first description of macroscopic brain anatomy and its ontogeny in the viperid Bothrops moojeni, based on a sample of seven individuals.
Paula Araújo   +2 more
wiley   +1 more source

Biodiversity from the Sky: Testing the Spectral Variation Hypothesis in the Brazilian Atlantic Forest

open access: yesRemote Sensing
Tropical forests have high species richness, being considered the most diverse and complex ecosystems in the world. Research on the variation and maintenance of biodiversity in these ecosystems is important for establishing conservation strategies.
Tobias Baruc Moreira Pinon   +10 more
doaj   +1 more source

Morpho‐functional analyses of the jaw apparatus in the Blue‐and‐yellow Macaw (Ara ararauna, Psittaciformes, Aves): Adaptations to feeding behavior

open access: yesThe Anatomical Record, EarlyView.
Abstract Macaws are renowned for processing dry, mechanically resistant fruits, yet the species‐level anatomical and functional correlates of this performance remain incompletely resolved. We examined the feeding apparatus of the Blue‐and‐yellow Macaw (Ara ararauna) using an integrated approach that combines osteology, myology, and bite‐force estimates
Sérgio R. Posso   +2 more
wiley   +1 more source

Widespread distribution of large silesaurids evidenced by a new record from the Middle Triassic of southwest Gondwana

open access: yesThe Anatomical Record, EarlyView.
The largest silesaurid known from South America is described here, demonstrating that silesaurids reached large body sizes in southwestern Gondwana. This discovery further underscores the widespread geographic distribution and temporal persistence of large silesaurids across Pangea, despite faunal turnovers and environmental events such as the Carnian ...
Rodrigo Temp Müller
wiley   +1 more source

Investigation of Exposure to Occupational Noise among Forestry Machine Operators: A Case Study in Brazil

open access: yes, 2021
In mechanized harvesting of wood operations, in a cut-to-length system, occupational noise is emitted by self-propelled forest machines, which compromises the safety and health of operators.
Camargo, Diego Aparecido [UNESP]   +5 more
core   +1 more source

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