Results 41 to 50 of about 32,967 (315)

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

Tabanidae (Diptera) of Peru: checklist update and description of three new species

open access: yesRevista Peruana de Biología, 2020
We provide an update to the list of the species of Tabanidae known from Peru, along with descriptions of three new species: Diachlorus tenuimaculatus n. sp., Stenotabanus (Stenotabanus) carrascoi n. sp. and Stenotabanus (Stenotabanus) chaineyi n.
Augusto Loureiro Henriques   +1 more
doaj   +1 more source

Effects of agricultural lands on the distribution pattern of genus diversity for neotropical terrestrial vertebrates

open access: yesEcological Indicators, 2021
The expansion and intensification of agricultural lands (i.e., croplands and pasture areas) have become increasing threats to species diversity around the world.
Chun-Jing Wang   +2 more
doaj   +1 more source

Additions to the Bryophyte Flora of the Neotropics [PDF]

open access: yes, 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
core  

Reconciling timber extraction with biodiversity conservation in tropical forests using reduced-impact logging [PDF]

open access: yes, 2015
Over 20% of the world's tropical forests have been selectively logged, and large expanses are allocated for future timber extraction. Reduced-impact logging (RIL) is being promoted as best practice forestry that increases sustainability and lowers CO2 ...
Azevedo-Ramos   +49 more
core   +2 more sources

NEOTROPICAL CARNIVORES: a data set on carnivore distribution in the Neotropics [PDF]

open access: yesEcology, 2020
AbstractMammalian carnivores are considered a key group in maintaining ecological health and can indicate potential ecological integrity in landscapes where they occur. Carnivores also hold high conservation value and their habitat requirements can guide management and conservation plans.
Mariana Nagy‐Reis   +690 more
openaire   +4 more sources

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

Further distribution of Gertrudielle validinervis (Herz.) Broth. in the Neotropics [PDF]

open access: yes, 2005
Gertrudiella validinervis (Herz.) Broth. is additionally recorded for the dry forests in northwestern Argentina.
Schiavone, Maria M.   +1 more
core  

Changes in the carbon balance of tropical forest: evidence from long-term plots [PDF]

open access: yes, 1998
The role of the world’s forests as a “sink” for atmospheric carbon dioxide is the subject of active debate. Long-term monitoring of plots in mature humid tropical forests concentrated in South America revealed that biomass gain by tree growth exceeded ...
Brown, S.   +10 more
core   +2 more sources

Neuroanatomical diversity in Teleocichla with new volumetric and histological insights into the encephalon of Teleocichla monogramma Kullander 1988

open access: yesThe Anatomical Record, EarlyView.
Abstract Teleocichla comprises small cichlids that inhabit the rapid streams of Amazonian rivers; however, there has been limited research on their encephalon morphology. This study examined the neuroanatomy of four species, focusing on volumetric measurements of their encephalon subregions, and providing a histological description of the encephalon of
Renan Leão‐Reis   +4 more
wiley   +1 more source

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