Results 31 to 40 of about 3,704,030 (307)

Species diversity and molecular characterization of Alternaria section Alternaria isolates collected mainly from cereal crops in Canada

Frontiers in Microbiology, 2023
Alternaria is often one on the most abundant fungal genera recovered from a wide array of plant hosts and environmental substrates. Many species within the sub-generic Alternaria section Alternaria are common plant pathogens that cause pre-harvest losses
Jeremy R. Dettman, Quinn A. Eggertson, Natalie E. Kim   +2 more
doaj   +1 more source

Species Abundance Patterns in Complex Evolutionary Dynamics

, 2004
An analytic theory of species abundance patterns (SAPs) in biological networks is presented. The theory is based on multispecies replicator dynamics equivalent to the Lotka-Volterra equation, with diverse interspecies interactions.
A. S. Corbet, F. A. Bazzaz, F. W. Preston, I. Motomura, J. Hofbauer, Kei Tokita, M. Mezard, M. Tokeshi, R. B. Waide, R. H. Whittaker, R. M. May, R. M. May, R. M. May, S. Nee, S. P. Hubbel   +14 more
core   +1 more source

Spectral control for ecological stability [PDF]

, 2018
A system made up of N interacting species is considered. Self-reaction terms are assumed of the logistic type. Pairwise interactions take place among species according to different modalities, thus yielding a complex asymmetric disordered graph.
Bagnoli, Franco, Battistelli, Giorgio, Cencetti, Giulia, Chisci, Luigi, Fanelli, Duccio   +4 more
core   +2 more sources

A new species in the Spirobranchus kraussii complex (Annelida: Serpulidae) from Australia

Records of the Australian Museum
The blue coral-worm Spirobranchus kraussii (Baird, 1864) (Annelida: Serpulidae) was originally described from South Africa and reported as a widely distributed Indo-Pacific species, however it is now recognized as a complex of regionally distributed ...
Ivison Brandao, Ashley Ingall, Elena Kupriyanova   +2 more
doaj   +1 more source

Taxonomy and Phylogeny of the Fomitopsis pinicola Complex With Descriptions of Six New Species From East Asia

Frontiers in Microbiology, 2021
Fomitopsis pinicola is a common brown-rot fungal species found in northern hemisphere. It grows on many different gymnosperm and angiosperm trees. Recent studies show that it is a species complex; three species from North America and one species from ...
Shun Liu, Shun Liu, Mei-Ling Han, Tai-Min Xu, Tai-Min Xu, Yan Wang, Yan Wang, Dong-Mei Wu, Bao-Kai Cui, Bao-Kai Cui   +9 more
doaj   +1 more source

Voltammetric investigation of the complexation equilibria in the presence of a low level of supporting electrolyte Part 1: Steady-state current-potential curves for inert complexes [PDF]

, 1997
The use of microelectrodes for voltammetric investigations of the complexation equilibria at very low concentrations of supporting electrolyte allows the risk of competitive complexation or contamination to be avoided, makes the activities of the species
Bos, M., Palys, M.J., Palys, Marcin J., Stojek, Zbigniew, van der Linden, W.E.   +4 more
core   +4 more sources

Molecular characterization of Spirometra isolates across the USA

Parasitology
Spirometra is a genus of zoonotic cestodes with an ambiguous species-level taxonomic history. Previously, Spirometra mansonoides was considered the only species present in North America.
Tiana L. Sanders, Caroline Sobotyk, Pablo D. Jimenez Castro, Amira Abdu, Jennifer Baade, Mindy Borst, Sriveny Dangoudoubiyam, Brooke A. Delcambre, Jeff M. Gruntmeir, Alice Lee, Christian Leutenegger, Cecilia Lozoya, Gleeson Murphy, Cassan Pulaski, John Schaefer, Adriano Vatta, Heather D. S. Walden, Manigandan Lejeune, Guilherme G. Verocai   +18 more
doaj   +1 more source

Molecular-Based Taxonomic Inferences of Some Spider Mite Species of the Genus Oligonychus Berlese (Acari, Prostigmata, Tetranychidae)

Insects, 2023
DNA barcoding technology using short DNA sequences has emerged as an efficient and reliable tool for identifying, confirming, and resolving closely related taxa.
Hafiz Muhammad Saqib Mushtaq, Amgad A. Saleh, Muhammad Kamran, Fahad Jaber Alatawi   +3 more
doaj   +1 more source

Hippopotamyrus ansorgii species complex in the Upper Zambezi River System with a description of a new species, H. szaboi (Mormyridae) [PDF]

, 2004
Specimens referable to Hippopotamyrus ansorgii sampled from the Upper Zambezi River System within Caprivi (Namibia) represent a complex of three species, two of which coexist in the Upper Zambezi River, and a third that inhabits a nearby river, the ...
Kramer, Bernd, Van der Bank, Herman, Wink, Michael   +2 more
core   +1 more source

Temporal and spatial variation in population structure among brooding sea stars in the genus Leptasterias

Ecology and Evolution, 2021
Temporal genetic studies of low‐dispersing organisms are rare. Marine invertebrates lacking a planktonic larval stage are expected to have lower dispersal, low gene flow, and a higher potential for local adaptation than organisms with planktonic ...
Laura M. Melroy, C. Sarah Cohen
doaj   +1 more source