Results 51 to 60 of about 16,872 (300)
The 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
Clade‐wide morphological and functional variation of the sauropsid columella
The Anatomical Record, EarlyView.Abstract The columella (=stapes) is the middle ear bone of reptiles that transmits vibrations from the environment to the inner ear. It has been shown to exhibit extensive interspecific morphological disparity in several clades; however, its morphological variation and associated functional consequences remain poorly described.
John Peacock +4 more
wiley +1 more source
Noteworthy Natural History Notes from the Neotropics
I report some rarely observed, infrequently reported, or hitherto unrecorded ecological interactions from the neotropics. These anecdotal observations were made opportunistically during nature tours or tropical biology classes in Belize, Panama, Costa ...
Kannan, R.
core +2 more sources
Starch reserves in Neotropical species of Marattia (Marattiaceae-Pteridophytes)
Anales del Jardín Botánico de Madrid, 2007 Starch grains found within the parenchymatous tissues of the rhizomes of seven Neotropical species of Marattia Sw. (M. alata Sw., M. cicutifolia Kaulf., M. excavata Underw., M. interposita Christ, M. laevis Sm., M. laxa Kunze and M. weinmanniifolia Liebm.
María del Carmen Lavalle +1 more
doaj +1 more source
Scleria (Cyperaceae) in the state of Pará, Amazon, Brazil
Acta Botânica Brasílica, 2021 The present study analyzes the diversity of Scleria in the state of Pará and presents taxonomic treatments for all recorded species. The analysis was based on extensive herbarium studies (CEN, HBRA, HCJS, HSTM, IAN, IBGE, INPA, MFS, MG, RB, and UB) and ...
Layla Jamylle Costa Schneider +1 more
doaj +1 more source
Segmental composition and nerve distribution of the brachial plexus in Galictis cuja
The Anatomical Record, EarlyView.Abstract Galictis cuja is a neotropical mustelid with terrestrial locomotor habits, yet the anatomy of its brachial plexus has remained undescribed. This study characterizes the origin, organization, and distribution of the brachial plexus nerves in 15 adult specimens (30 antimeres).
Natan da Cruz de Carvalho +6 more
wiley +1 more source
Sociobiology, 2019 This work discusses the criteria proposed to consider wild bees as bioindicators and specifically applied to orchid bees in neotropical forests. Some of the issues are: 1) the deficiencies of the sampling methods, which makes it difficult to accurately ...
Yostin Añino +2 more
doaj +1 more source
The mechanism of labor in nonhuman primates: A look inside
The Anatomical Record, EarlyView.Abstract While in humans, the flexed position of the fetus and its rotating course down the birth canal are well documented, in other primates the mechanism of labor is unknown. Despite the lack of comparative data, it is commonly assumed that the human obstetric mechanism is unique, and anthropologists have disputed when and why the transition to the ...
Melissa K. Stoller
wiley +1 more source
The Anatomical Record, EarlyView.Abstract The claspers are the copulatory organs in male elasmobranchs, responsible for directing the semen into the female cloaca (C). However, the microscopic morphology of the claspers remains poorly understood. This study describes the morphology of the claspers and clasper glands (CGs) of cururu stingray (Potamotrygon wallacei) at different ...
Matheus Samuel Cunha Braga +4 more
wiley +1 more source
Availability of microhabitats for Myxomycetes in the Atlantic Forest: Bromeliaceae [PDF]
Biotemas, 2010 Some species belonging to the Bromeliaceae family are called tank-bromeliads, due to the arrangement of its leave in rosettes that accumulate water and organic debris, allowing the development of diversified organisms.
Inaldo do Nascimento Ferreira +1 more
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