Results 71 to 80 of about 299,761 (211)

Una especie nueva de Beaucarnea (Nolinaceae)

open access: yesActa Botanica Mexicana, 1992
Se describe Beaucarnea hiriartiae sp. n. del estado de Guerrero, México. Esta nueva especie es similar a B. stricta Lemaire de los estados vecinos de Puebla y Veracruz.
openaire   +3 more sources

Phylogenomics and biogeography of the cleptoparasitic bee genus Triepeolus Robertson (Hymenoptera: Apidae), with a revised subgeneric classification of Triepeolus and its sister genus, Epeolus Latreille Filogenómica y biogeografía del género de abejas cleptoparásitas Triepeolus Robertson (Hymenoptera: Apidae), con una clasificación subgenérica revisada para Triepeolus y su género hermano, Epeolus Latreille

open access: yesSystematic Entomology, Volume 51, Issue 1, January‐March 2026.
A subgeneric classification is proposed for Triepeolus—the second‐largest genus of cleptoparasitic apid bees in the world—and its sister genus Epeolus, with support from a newly presented dated phylogeny. Phylogenomic analysis based on ultraconserved elements revealed strong support for the monophyly of Triepeolus, which diverged from Epeolus sometime ...
Thomas M. Onuferko   +2 more
wiley   +1 more source

Contribución al estudio de hongos que viven sobre materias fecales (1ª aportación) [PDF]

open access: yes, 1977
Se estudian especies de hongos recolectadas sobre materias fecales, Myxomycetes, Ascomycetes y Basidiomycetes, comparándolas con otras especies que denominamos "subcoprofilas". Se describen macro y microscópicamente los taxones más interesantes. Resultan
Barrasa, José María   +1 more
core   +1 more source

Functional Morphology of the Scaphoid in Extant African Apes, Humans and Fossil Hominins

open access: yesAmerican Journal of Biological Anthropology, Volume 188, Issue 4, December 2025.
ABSTRACT Objectives The morphology of the hominoid scaphoid has played a key role in functional and evolutionary hypotheses related to the emergence of hominin bipedalism and tool use. However, the scaphoid's complex morphology is challenging to comparatively analyze via traditional 2D linear measurements.
Nadine G. Steer   +5 more
wiley   +1 more source

Plant functional traits shape the provision of ecosystem services to Indigenous communities in western Amazonia

open access: yesPeople and Nature, Volume 7, Issue 12, Page 3313-3329, December 2025.
Abstract Context. Exploring how Indigenous People interact with plants through their functional traits allows us to understand the ecological bases of plant selection. Functional traits can help explain why certain plants are consistently chosen for specific purposes across diverse cultural contexts.
Julia G. de Aledo   +16 more
wiley   +1 more source

Urvillea peruviana (Sapindaceae) nueva especie andina

open access: yesBonplandia, 1997
Una nueva especie del norte de los Andes peruanos, Urvillea peruviana Ferrucci (Sapindaceae Paullinieae), se describe e ilustra y se informa su número de cromosomas somáticos, 2n=22. Sus relaciones con U. filipes Radlk. y U. paucidentata Ferrucci, se consideran estrechamente relacionadas con la nueva especie.
openaire   +4 more sources

Predictions of southern migration timing in coastal sharks under future ocean warming

open access: yesConservation Biology, Volume 39, Issue 6, December 2025.
Abstract Projected redistribution of marine species due to ocean warming may undermine current conservation efforts. Yet, there have been few studies on how ocean warming may alter migration timing. Across 5 years of acoustic telemetry data (2018–2022), we determined environmental drivers of southward migration timing for 6 migratory shark species from
Maria H. Manz   +16 more
wiley   +1 more source

Aportaciones al conocimiento del género Hieracium L. en España, XXII [PDF]

open access: yes, 2016
Se proponen y describen varias especies nuevas para el género Hieracium L. (Compositae, Lactuceae) en España, también se amplía al área conocida de otras especies ya descritas.Novelties on the genus Hieracium L. in Spain, XXII.
Mateo Sanz, Gonzalo
core  

Nuevas especies americanas de Turnera (Turneraceae)

open access: yesBonplandia, 1993
El estudio de material de herbario para la revisión del género Turnera, y los viajes de recolección hechos al Brasil en los últimos tres años han permitido el hallazgo de algunas nuevas especies, que se describen aquí: T.aromatica, T.candida, T.cipoensis, T.gardneriana, T.joelii, T.prancei, T.purpurascens, T.rubrobracteata y T.urbanii.
openaire   +4 more sources

Identifying potentially suitable and accessible refugia to mitigate impacts of an emerging disease on a rare tree

open access: yesConservation Biology, Volume 39, Issue 6, December 2025.
Abstract Identifying refugia from emerging threats is vital to ensure the persistence of rare and threatened species, but modeling habitat distribution for these species is challenging and the role of people in refuge management is rarely considered. Myrtle rust is an emerging infectious disease that represents a grave threat to the rare wetland tree ...
Sarah M. Herbert   +7 more
wiley   +1 more source

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