Results 111 to 120 of about 26,084 (311)

Characterising a potential nearshore nursery ground for the blackchin guitarfish (Glaucostegus cemiculus) in Ma’agan Michael, Israel

open access: yesFrontiers in Marine Science
The blackchin guitarfish Glaucostegus cemiculus has suffered severe declines and regional extirpation throughout its known distributions. While this species and its relative, the common guitarfish Rhinobatos rhinobatos, have been described in the ...
Barak Azrieli   +10 more
doaj   +1 more source

A Worker-Like Female of Myrmica sabuleti (Meinert, 1861) (Hymenoptera: Formicidae: Myrmicinae) in a Pitfall Trap with Five Mermithids (Nematoda: Mermithidae) Protruding from the Gaster

open access: yesSociobiology, 2019
A worker-like female of Myrmica sabuleti (Meinert, 1861), pitfall-trapped near Jena, Germany, in late summer 2016, was infested by five postparasitic juvenile mermithids. They poked out of the ant´s gaster as a trail of seven filaments of various lengths.
Florian M. Steiner   +5 more
doaj   +1 more source

Nanodiamonds as Bioactive Platforms to Modulate Microbial, Mammalian, and Vertebrate Systems

open access: yesAdvanced NanoBiomed Research, EarlyView.
Nanodiamonds (NDs) are biocompatible and antibacterial nanomaterials that support mammalian cell growth while inhibiting bacterial pathogens. NDs showed strong antibacterial activity, with Escherichia coli being more sensitive than Staphylococcus aureus. At 10 mg/mL, both bacteria exhibited ~8% viability.
Aaqil Rifai   +6 more
wiley   +1 more source

Variation in the Floral Morphology of Prosthechea karwinskii (Orchidaceae), a Mexican Endemic Orchid at Risk

open access: yesPlants
Prosthechea karwinskii is an orchid endemic to Mexico, threatened by the destruction of its habitat and the extraction of specimens to meet its demand for ornamental and religious use.
María Hipólita Santos-Escamilla   +4 more
doaj   +1 more source

Functional morphology of the pharyngeal teeth of the ocean sunfish, Mola mola

open access: yesThe Anatomical Record, EarlyView.
Abstract Many fish use a set of pharyngeal jaws in their throat to aid in prey capture and processing, particularly of large or complex prey. In this study—combining dissection, CT scanning, histology, and performance testing—we demonstrate a novel use of pharyngeal teeth in the ocean sunfish (Mola mola), a species for which pharyngeal jaw anatomy had ...
Benjamin Flaum   +3 more
wiley   +1 more source

Arothron: R Functions for Geometric Morphometrics Analyses

open access: yes, 2015
<p>Tools for Geometric Morphometrics</p ...
Profico Antonio (5152034)   +3 more
core   +2 more sources

Evidence of morphological discrete units in an endemic fish, the rostrum dace (Leuciscus burdigalensis Valenciennes 1844), within a small river basin [PDF]

open access: yesKnowledge and Management of Aquatic Ecosystems, 2008
The rostrum dace is a rheophilous Cyprinid fish endemic to some French catchments. Particularly vulnerable to its habitat degradation, the rostrum dace appears to be a patrimonial species.
N. Poulet
doaj  

Finite element analysis of feeding in red and gray squirrels (Sciurus vulgaris and Sciurus carolinensis)

open access: yesThe Anatomical Record, EarlyView.
Abstract Invasive gray squirrels (Sciurus carolinensis) have replaced the native red squirrel (Sciurus vulgaris) across much of Great Britain over the last century. Several factors have been proposed to underlie this replacement, but here we investigated the potential for dietary competition in which gray squirrels have better feeding performance than ...
Philip G. Cox, Peter J. Watson
wiley   +1 more source

Was Mesosaurus a Fully Aquatic Reptile?

open access: yesFrontiers in Ecology and Evolution, 2018
Mesosaurs have been considered strictly aquatic animals. Their adaptations to the aquatic environment are well known and include putative viviparity, along with the presence of several skeletal characters such as a long, laterally compressed tail, long ...
Pablo Nuñez Demarco   +4 more
doaj   +1 more source

Morphometrics of Knodus nuptialis.

open access: yes, 2019
Morphometrics of Knodus nuptialis.
Naércio A. Menezes (4374436)   +1 more
core   +1 more source

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