Results 61 to 70 of about 4,183,802 (162)

Cryptobenthic reef fishes may not be safe from invasive lionfish (Pterois spp. Oken, 1817)

open access: yesJournal of Fish Biology, Volume 109, Issue 4, Page 2488-2497, October 2026.
Abstract Lionfish (Pterois spp.) are hypothesized to negatively influence cryptobenthic reef fish assemblages through predation. We evaluated these potential effects on Caribbean reefs in Costa Rica and tropical reefs in Brazil. Brazil provided a reference condition for cryptobenthic assemblages prior to lionfish invasion, while the Costa Rica sites ...
Liana F. Mendes   +10 more
wiley   +1 more source

Phytotoxic Effects of Ethanolic Extracts of Magonia pubescens A.St.‐Hil. (Sapindaceae) on the Germination of Emilia sonchifolia (L.) DC. Seeds

open access: yesChemistry &Biodiversity, Volume 23, Issue 9, September 2026.
Ethanolic extracts from Magonia pubescens exhibit concentration‐dependent allelopathic activity against Emilia sonchifolia. Leaf extracts strongly inhibit seed germination and seedling growth, surpassing glyphosate under the tested conditions, whereas intermediate concentrations stimulate germination, indicating hormesis.
José Jonas Ferreira Viturino   +9 more
wiley   +1 more source

First Eumastacoidea and new Locustopsidae (Orthoptera: Caelifera) from the Crato Formation of Brazil [PDF]

open access: yesContributions to Entomology
The first genus and species of Eumastacoidea from the Lower Cretaceous Crato Formation of northeastern Brazil is described. Cratomastax mariellaae gen. et sp. nov.
Ole-Kristian Odin Schall   +4 more
doaj   +3 more sources

Gymnosperms from the Lower Cretaceous Crato Formation (Brazil). I. Araucariaceae and Lindleycladus (incertae sedis) [PDF]

open access: yesFossil Record, 2004
Fossil conifers from the Early Cretaceous, most likely late Aptian, Crato Formation were studied. The excellent preservation of several of those fossils allowed detailed investigations of the leaf epidermis by light microscope (LM) and by scanning ...
L. Kunzmann   +2 more
doaj   +1 more source

Fig. 18 in The Species of Isoptera (Insecta) from the Early Cretaceous Crato Formation: A Revision

open access: yes, 2008
Fig. 18. Plot of select body proportions of Crato Formation termite species: pronotum width/head width vs. forewing length (mm). Only those specimens were included for which forewing length, head width, and pronotum width could all be measured (see table
Engel, Michael S.   +2 more
core   +1 more source

Lantana delicata (Verbenaceae), a New Species From Brazil, and Additional Updates Within the Genus

open access: yesFeddes Repertorium, Volume 137, Issue 3, September 2026.
ABSTRACT In this study, we present some novelties in Lantana, a taxonomically complex genus of Verbenaceae. These include (1) the description of L. delicata, a new species from Brazil; (2) the lectotypification of the name L. magnibracteata; and (3) the recognition of L. fucata f. albiflora, previously regarded as a synonym of L.
Pedro Henrique Cardoso   +6 more
wiley   +1 more source

Fossils as cultural heritage: Scientific, commercial and legislative issues

open access: yesGeology Today, Volume 42, Issue 5, Page 263-272, September/October 2026.
Fossils are among the principal sources for understanding the history of life through ‘Deep Time’ and can inform projections of biotic responses to environmental change. Despite a widespread recognition of the scientific, historical and communication significance of fossils in our culture, their role as part of our cultural heritage is still far from ...
Federico Fanti   +5 more
wiley   +1 more source

Evidence for the Induction of Anxiolytic‐Like Behavior and Memory Preservation by (+)‐Dihydrocarvone Through Studies in Adult Zebrafish and In Sílico

open access: yesChemistry &Biodiversity, Volume 23, Issue 8, August 2026.
(+)‐Dihydrocarvone exhibited anxiolytic‐like and memory‐preserving effects in adult zebrafish. Behavioral assays showed reduced anxiety and improved cognitive performance, while in silico docking revealed strong interactions with GABAergic and cholinergic targets. These findings suggest (+)‐dihydrocarvone as a promising neuroactive compound for anxiety
Isadora Freitas de Sousa   +11 more
wiley   +1 more source

(Crocodylomorpha: Mesoeucrocodylia) from the Crato Formation (Santana Group) with comments on Neosuchia

open access: yes, 2012
Figueiredo, Rodrigo G., Moreira, João K. R., Saraiva, Antônio Á. F., Kellner, Alexander W. A. (2011): Description of a new specimen of Susisuchus anatoceps (Crocodylomorpha: Mesoeucrocodylia) from the Crato Formation (Santana Group) with comments on ...
Kellner, Alexander W. A.   +7 more
core   +1 more source

Inside a duck‐billed dinosaur: Vertebral bone microstructure of Huallasaurus (Hadrosauridae), Upper Cretaceous of Patagonia

open access: yesThe Anatomical Record, Volume 309, Issue 7, Page 1702-1712, July 2026.
Abstract Dinosaurs evolved a unique respiratory system with air sacs that contributed to their evolutionary success. Postcranial skeletal pneumaticity (PSP) has been used to infer the presence of air sac systems in some fossil archosaurs. While unambiguous evidence of PSP is well documented in pterosaurs and post‐Carnian saurischians, it remains absent
Tito Aureliano   +3 more
wiley   +1 more source

Home - About - Disclaimer - Privacy