Results 231 to 240 of about 3,427 (296)

The latitudinal speciation gradient in freshwater fishes: Higher speciation across assemblages at higher latitudes in the northern hemisphere. [PDF]

open access: yesPLoS One
Herrera-Pérez J   +6 more
europepmc   +1 more source

The Role of Gene Flow in the Diversification of the Monkey Treefrog Complex Across the South American Dry Diagonal

open access: yesZoologica Scripta, EarlyView.
ABSTRACT Understanding Neotropical megadiversity remains challenging due to fundamental taxonomic issues, including identifying and describing cryptic species and their distribution, and the limited knowledge of key factors driving biological diversification. Such challenges are especially prominent in diverse clades with high levels of cryptic species,
Felipe Camurugi   +10 more
wiley   +1 more source

Trophic Redundancy and the Hidden Dietary Overlap Between Native and Invasive Stream Fishes

open access: yesEcology of Freshwater Fish, Volume 35, Issue 3, July 2026.
ABSTRACT Biological invasions introduce non‐native species into natural ecosystems, often reshaping localcommunities and altering trophic interactions. In freshwater environments, such invasions can intensify resource use and threaten native fish diversity.
Ronielson Gaia   +6 more
wiley   +1 more source

Rickettsiales in South America: A Systematic Review of Their Molecular Detection and Distribution in Arthropods and Vertebrates

open access: yesPublic Health Challenges, Volume 5, Issue 2, June 2026.
ABSTRACT Bacteria of the order Rickettsiales comprise a diverse group of obligate intracellular microorganisms that are globally distributed and highly prevalent in tropical and subtropical regions. In South America, these bacteria have been associated with arthropod vectors, such as ticks, fleas, mites, lice, and certain dipterans, as well as with a ...
Cristian J. Zamorano‐Gómez   +3 more
wiley   +1 more source

A proximodistal gradient in bone structure and mechanics in the wings of Seba's short‐tailed bat, Carollia perspicillata

open access: yesThe Anatomical Record, Volume 309, Issue 5, Page 1422-1432, May 2026.
Abstract Bats possess the remarkable ability to fly, and with this, distinctive wing bone properties. We investigated the structural, mechanical, and compositional properties of the humerus, radius, metacarpals, and proximal and middle phalanges of Carollia perspicillata, an approximately 15 g fruit‐eating bat native to the Neotropics.
Xiaoxiang Ma   +4 more
wiley   +1 more source

Molecular Confirmation of Raptors from Spain as Definitive Hosts of Numerous <i>Sarcocystis</i> Species. [PDF]

open access: yesAnimals (Basel)
Juozaitytė-Ngugu E   +6 more
europepmc   +1 more source

Anatomical Description of the Main Gyri and Sulci of the Telencephalon of Alouatta belzebul

open access: yesAnatomia, Histologia, Embryologia, Volume 55, Issue 3, May 2026.
ABSTRACT The Alouatta belzebul is a species of howler monkey, of the Atelidae family and genus Alouatta. It is endemic in Brazil and has a separate geographic distribution, with two populations occurring: in the Amazon and in the Atlantic Forest on the coast of Northeast Brazil. The species is classified as ‘vulnerable’, and this is mainly justified by
Dayane Kelly Sabec Pereira   +4 more
wiley   +1 more source

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