Results 61 to 70 of about 2,753 (184)

Environmental correlates of spatio‐temporal patterns of colour variation in a bird of prey: The common buzzard (Buteo buteo)

open access: yesIbis, Volume 168, Issue 3, Page 985-1001, July 2026.
High colour variability in animals has been associated with adaptability to environmental change. Establishing how such variability is distributed in time and space, and identifying environmental correlates, can help understand the processes driving it.
Kaspar Delhey   +4 more
wiley   +1 more source

Genetic characterization of the Balkan endemic species, Merodon desuturinus (Diptera: Syrphidae)

open access: yesEuropean Journal of Entomology, 2008
Variation of 15 nuclear allozyme genes and a 708 bp fragment of DNA sequence of the mitochondrial cytochrome c oxidase subunit I (COI) gene were surveyed in a population of a hoverfly species, Merodon desuturinus Vujić, Šimić & Radenković, 1995 (Diptera,
Vesna MILANKOV   +2 more
doaj   +1 more source

Speciation of European bullheads (Cottus spp.): The next problem for taxonomy of northern freshwater fishes

open access: yesJournal of Fish Biology, Volume 109, Issue 1, Page 15-26, July 2026.
Abstract High morphological and ecological diversity displayed by European bullheads led Freyhof et al. (2005) to describe 15 nominal species. However, the basis for declaring these nominal species is contentious due to a lack of rigorous statistical analysis of morphological variations among populations, limitations in the inferences made from ...
David S. Murray   +3 more
wiley   +1 more source

Comparative genetic structure in pines: evolutionary and conservation consequences Estructura genética comparada en pinos: consecuencias evolutivas y para la conservación

open access: yesRevista Chilena de Historia Natural, 2002
Pines have been the focus of several studies that estimate population genetic parameters using both allozymes and chloroplast single sequence repeats (SSRs). Also, the genus has also been recently studied using molecular systematics so that we now have a
PATRICIA DELGADO   +4 more
doaj  

Allozyme differentiation of two populations of the genus Neoplecostomus Eigenmann & Eigenmann, 1888 (Teleostei, Loricariidae) from the upper Paraná River basin, Brazil

open access: yesGenetics and Molecular Biology, 2011
Allozyme electrophoresis was used to examine 12 enzymatic systems in two populations of the genus Neoplecostomus from the Paraná River basin. Samples of Neoplecostomus sp.
Ana Flávia Reusing   +3 more
doaj  

Genetic differentiation of the neotropical tree species Protium spruceanum (Benth.) Engler (Burseraceae) between fragments and vegetation corridors in Brazilian Atlantic forest Diferenciação genética da espécie arbórea neotropical Protium spruceanum (Benth.) Engler (Burseraceae) entre fragmentos e corredores de vegetação em floresta Atlântica Brasileira

open access: yesActa Botânica Brasílica, 2009
We studied patterns of genetic differentiation in a connected landscape with an interesting history of human habitat conversion that began two centuries ago, during the Brazilian colonization period. In the fragments of Brazilian Atlantic seasonal forest
Fábio de Almeida Vieira   +1 more
doaj   +1 more source

Genetic variability of Crassostrea gigas and Crassostrea corteziensis from a hatchery in northwestern Mexico

open access: yesCiencias Marinas, 2010
To evaluate the genetic variability of oysters supplied by the Centro Reproductor de Especies Marinas del Estado de Sonora (Marine Species Hatchery Center of the State of Sonora), allozyme loci of triploid Crassostrea gigas (n = 78) and the F1 ...
T L Enríquez-Espinoza   +1 more
doaj   +1 more source

Allozymic similarity in D. nepalensis.

open access: yes, 1995
Uploaded by Plazi for TaxoDros. We do not have abstracts.
Karan, D., Parkash, R., Munjal, A.K.
openaire   +1 more source

Genetic and morphometric analysis of Chione californiensis and C. subimbricata (Bivalvia: Veneridae) from the Mexican East Pacific and Gulf of California

open access: yesCiencias Marinas, 2007
Con el objetivo de caracterizar genética y morfométricamente algunas poblaciones de Chione californiensis y C. subimbricata de las costas del Golfo de California y el Pacífico bajacaliforniano, se realizaron electroforesis de alozimas en 23 sistemas ...
A Licona-Chavez   +3 more
doaj   +1 more source

Genetic variability and differentiation in cultured white shrimp Penaeus (Litopenaeus) vannamei with low and high growth

open access: yesCiencias Marinas, 2005
 To find a relationship between allozyme heterozygosity and body size in cultured white shrimp, Penaeus (Litopenaeus) vannamei, a sample was taken at the end of an experimental culture; 72 small organisms of 7.1 ± 1.35 g average weights, and 72 large ...
M Rivera-García, JM Grijalva-Chon
doaj   +1 more source

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