Results 221 to 230 of about 15,150 (256)

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

Ecology 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, Ana Carolina Martins‐Pereira, Paulo Ricardo S. Camargo, Virgilio Teixeira Carrijo, Rafael Cunha Bruno, Fagner de Souza, Victor A. Tagliacollo   +6 more
wiley   +1 more source

First record of <i>Obeza nigromaculata</i> (Cameron, 1884) (Hymenoptera, Eucharitidae, Eucharitini) from Colombia, with one nomenclatural act for the species. [PDF]

Biodivers Data J
Rivas-Quezada ML, Gamboa J, Serna F.
europepmc   +1 more source

Do Coexisting Cryptic Species of Predatory Peacock Bass (Cichliformes: Cichlidae) Partition Their Niche?

Ecology of Freshwater Fish, Volume 35, Issue 3, July 2026.
ABSTRACT The mechanisms facilitating coexistence of cryptic species in sympatry have long puzzled ecologists. Cryptic species have nearly identical morphology and, therefore, would be presumed to have high niche overlap and potential for interspecific competition and competitive exclusion when resources are limited. Lowland rivers in South America have
Benton L. Fry, Kirk O. Winemiller
wiley   +1 more source

Genome assembly of the Neotropical marsh rat Holochilus nanus (Cricetidae: Sigmodontinae) brings insights on B and sex chromosome evolution. [PDF]

Mamm Genome
Moreira CN, Oliveira J, Yonenaga-Yassuda Y, do Nascimento VA, Wolf IR, Martins C.   +5 more
europepmc   +1 more source

Flavobacterium oreochromis From Farmed Tambaqui (Colossoma macropomum): Insights Into Genetic, Phenotypic and Pathogenic Diversity

Journal of Fish Diseases, Volume 49, Issue 7, July 2026.
ABSTRACT Flavobacterium spp. are the etiological agents of columnaris disease. Although there is evidence that columnaris poses a significant threat to the farming of tambaqui (Colossoma macropomum), there remains a large gap in understanding the genetic and phenotypic diversities of columnaris‐causing bacteria (CCB).
Elcimara Cardoso Pereira, Mariluce dos Reis Ferreira, Suzana Kotzent, Luiz Fagner Ferreira Nogueira, Guilherme Campos Tavares, Henrique César Pereira Figueiredo, Fabiana Pilarski, Gustavo Moraes Ramos Valladão, Sílvia Umeda Gallani   +8 more
wiley   +1 more source

Unraveling the Genome of Epidendrum Fulgens: Demographic History and Gene Family Dynamics in a Resilient Neotropical Orchid. [PDF]

Genome Biol Evol
de Mattos JS, Aecyo P, Keepers K, Tavares MM, Della-Rosa F, Palma-Silva C, Kane NC, Pinheiro F, Riaño-Pachon DM.   +8 more
europepmc   +1 more source

The raphe nuclear organization and serotonergic system in the bat (Artibeus planirostris)

Journal of Anatomy, Volume 249, Issue 1, Page 207-221, July 2026.
Schematic representation of the methodological workflow used to characterize the serotonergic (5‐HT) system in the bat Artibeus planirostris. Serotonin (5‐HT) immunohistochemistry was performed on brainstem sections to identify and map the distribution of serotonergic neurons within the raphe nuclei.
Mariana D. Leite, Andréa S. M. Bandeira, Wigínio G. L. Bandeira, Milena S. Lustosa, Ana C. F. Gama, Marília A. S. Barros, Paulo L. A. G. Morais, Jeferson S. Cavalcante, Melquisedec A. D. Santana, Expedito S. Nascimento Jr   +9 more
wiley   +1 more source

First observation of a leucistic bearded capuchin monkey (Sapajus libidinosus). [PDF]

Primates
Falótico T, Valença T.
europepmc   +1 more source

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

Zoologica Scripta, Volume 55, Issue 4, Page 568-588, July 2026.
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, Vinícius A. São Pedro, Felipe Magalhães, Marcelo Gehara, Eliana F. Oliveira, Gabriel C. Costa, Frank T. Burbrink, Edward A. Myers, Guarino R. Colli, Miguel T. Rodrigues, Adrian A. Garda   +10 more
wiley   +1 more source

<i>Ambecovirus</i>, a novel <i>Betacoronavirus</i> subgenus circulating in neotropical bats, sheds new light on bat-borne coronaviruses evolution. [PDF]

Virus Evol
Wallau GDL, Barbier E, Machado LC, da Silva AF, Dias YJM, Dezordi FZ, Tomazatos A, Horváth B, Lins RD, Bernard E, Cadar D.   +10 more
europepmc   +1 more source