Results 31 to 40 of about 15,867 (265)

Morphological variation and a remarkable new sexual dimorphism in the Pseudocyclops xiphophorus population of Lake Faro in northeastern Sicily

Scientia Marina, 2009
The population of P. xiphophorus in Lake Faro exhibits variation in the form of caudal seta V. In some specimens of both sexes, this seta is spatulate but in others it is slender and unmodified. Occasional specimens are asymmetrical.
Cinzia Brugnano, Geoffrey A. Boxshall, Giuseppe Costanzo, Giacomo Zagami   +3 more
doaj   +1 more source

Description of Two Morphotypes of Peptostreptococcus micros [PDF]

International Journal of Systematic Bacteriology, 1993
Peptostreptococcus micros is often isolated from abscesses in several parts of the human body. The oral cavity is considered the natural habitat for the species, which has been implicated as a periodontal pathogen. In plaque samples from periodontitis patients we observed the presence of a rough morphotype of P.
P J, van Dalen, T J, van Steenbergen, M M, Cowan, H J, Busscher, J, de Graaff   +4 more
openaire   +2 more sources

New techniques for old bones: Morphometric and diffeomorphometric analysis of the bony labyrinth of the Reilingen and Ehringsdorf Neandertals

The Anatomical Record, EarlyView.
Abstract Neandertals are known to possess very distinctive traits in their bony labyrinth morphology, such as an inferiorly positioned posterior canal and a very low number of turns in the cochlea. Hence, the inner ear has been often used to assess the Neandertal status of fragmentary fossils.
Alessandro Urciuoli, Julia Diez‐Valero, Ignacio Martínez, Rolf Quam, Brian A. Keeling, Nicole M. Webb, Mercedes Conde‐Valverde   +6 more
wiley   +1 more source

Morphological variations and abundance of populations of the leafhopper Dalbulus maidis (DeLong) (Hemiptera: Cicadellidae) from the corn-producing region of Huila, Colombia

Agronomía Colombiana, 2021
Dalbulus maidis is known as the vector of the pathogens causing corn stunt complex disease that decreases crop yields to percentages higher than 90%. In the most affected areas of this disease, there is an increase in the abundance of this insect.
Isda Sánchez-Reinoso, Camilo Ignacio Jaramillo-Barrios, Buenaventura Monje-Andrade, Augusto Ramírez-Godoy, Angela María Vargas Berdugo   +4 more
doaj   +1 more source

Differences in predominant collagen fiber orientation between dorsal and plantar trabecular bone tracts of adult mule deer calcanei suggest strain‐mode‐specific adaptation

The Anatomical Record, EarlyView.
Polarized microscopic images of the outer bone cortex (a and b) and deeper trabecular bone (c and d) of the deer calcaneus in thin cross‐sections. The brighter gray levels reflect more oblique‐to‐transverse collagen fibers in the compression/dorsal bone (a, c) and the darker gray levels reflect more longitudinal collagen in the tension/plantar bone (b,
John G. Skedros, John T. Cronin, Chad S. Mears, Brett W. Richards   +3 more
wiley   +1 more source

Regional variation in Argentinean populations of Bromus catharticus (Poaceae) as measured by morphological

Anales del Jardín Botánico de Madrid, 2008
Thirty-one populations of Bromus catharticus Vahl., collected from the Pampean Dominion (Argentina), were classified using twenty four highly heritable traits by numerical taxonomic methods.
Mónica B. Aulicino, Miguel J. Arturi
doaj   +1 more source

Evolutionary radiation of large‐bodied gorgonopsians from the lower Abrahamskraal formation of South Africa

The Anatomical Record, EarlyView.
Abstract The middle Permian represents a critical interval in therapsid evolution, when gorgonopsians emerged as some of the first specialized apex predators within terrestrial ecosystems. Despite their significance, the early diversification of Gorgonopsia in Gondwana remains poorly understood due to scarcity and fragmentary material.
Zanildo Macungo, Ricardo Araújo, Bruce S. Rubidge, Michael O. Day, Kathleen N. Dollman, Julien Benoit   +5 more
wiley   +1 more source

Diversity of Arbuscular Mycorrhizal Fungi Associated with Maize in the Eastern Part of Uganda

Biology and Life Sciences Forum, 2022
Improving maize yield is an objective of utmost importance for food security in Uganda. In the evaluation of soil microorganisms in crop production, it is important to assess the composition and diversity of the arbuscular mycorrhizal fungi (AMF) species
Abdoulaye Fofana Fall, Grace Nakabonge, Joseph Ssekandi, Hassna Founoune-Mboup, Arfang Badji, Issa Balde, Malick Ndiaye   +6 more
doaj   +1 more source

Tracing the evolutionary history of the morpho‐anatomy of baculum in primates

The Anatomical Record, EarlyView.
Abstract Animal morphology reflects both evolutionary history and present‐day adaptation. Male mammal copulatory structures such as the baculum (penile bone) are ideal for studying these processes because of their complexity and high interspecific variability. In primates, however, research has focused mostly on baculum length.
Federica Spani, Maria Pia Morigi, Matteo Bettuzzi, Monica Carosi   +3 more
wiley   +1 more source

Comparative in depth RNA sequencing of P. tricornutum’s morphotypes reveals specific features of the oval morphotype [PDF]

Scientific Reports, 2018
AbstractPhaeodactylum tricornutumis the most studied diatom encountered principally in coastal unstable environments. It has been hypothesized that the great adaptability ofP.tricornutumis probably due to its pleomorphism. Indeed,P.tricornutumis an atypical diatom since it can display three morphotypes: fusiform, triradiate and oval.
Ovide, Clément, Kiefer-Meyer, Marie-Christine, Berard, Caroline, Vergne, Nicolas, Lecroq, Thierry, Plasson, Carole, Burel, Carole, Bernard, Sophie, Driouich, Azeddine, Lerouge, Patrice, Tournier, Isabelle, Dauchel, Hélène, Bardor, Muriel   +12 more
openaire   +3 more sources