Results 31 to 40 of about 11,806 (155)
DiversityThe study of qualitative morphological variation is essential for taxonomists and professionals involved in the identification and diagnosis of species of agricultural importance. This becomes particularly critical when quarantine decisions depend on the
Allan H. Smith-Pardo +9 more
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Aspectos estructurales y cuantitativos del ovario de Fulica armillata (Aves: Rallidae)
Revista Peruana de Biología, 2012 Se estudiaron los aspectos morfohistológicos y cuantitativos del ovario de Fulica armillata durante la fase de recrudescencia gonadal. Se utilizaron 5 hembras adultas.
Mirian Bulfon, Noemí Bee de Speroni
doaj +1 more source
Terra Latinoamericana, 2023 En los ecosistemas de zonas áridas y semiáridas la producción de alimentos es cada vez más compleja. Uno de los efectos más importantes es la desertificación donde el agua tiene un papel primordial.
Ramón Jaime Holguín-Peña +2 more
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Hemodynamic on abdominal aortic aneurysm: Parametric study [PDF]
, 2014 Peer ReviewedPostprint (author's final ...
Soudah Prieto, Eduardo
core +1 more source
An evaluation of geographic and annual variation in morphometric characters and gill-raker counts of yellowfin tuna, Thunnus albacares, from the Pacific Ocean [PDF]
, 1992 ENGLISH: Samples of yellowfin tuna, Thunnus albacares, collected from five areas of the Pacific Ocean (Mexico, Ecuador, Australia, Japan, and Hawaii) between January and May of 1988 and 1990 were examined for spatiotemporal variation in morphometric ...
Schaefer, Kurt M.
core
Juvenile to mature wood transition in one Clone Of Populus deltoides implanted in Buenos Aires, Argentine [PDF]
, 2013 El objetivo del trabajo fue determinar la edad de transición de madera juvenil a madura a partir de las propiedades de la madera en un clon de álamo.
Area, Maria Cristina +2 more
core +3 more sources
Floral Handedness in Mormodes Orchids: Revisiting Charles Darwin's Observations
Biotropica, Volume 57, Issue 6, November 2025.In this study, we scrutinized floral enantiostyly in Mormodes orchids, a unique trait within Orchidaceae first observed by Charles Darwin. We hypothesize how intricate column twisting drives strategic pollinarium placement onto opposite sides of the thorax of male euglossine bees, enhancing cross‐pollination.
Arthur Domingos‐Melo +2 more
wiley +1 more source
Asimetría fluctuante como un indicador de estrés ambiental en pequeños mamíferos [PDF]
, 2017 La estabilidad del desarrollo de un organismo se refleja en la capacidad que posee de producir una forma “ideal” bajo un conjunto particular de condiciones.
Coda, José Antonio +4 more
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International Journal of Zoology, Volume 2025, Issue 1, 2025.The reproductive cycle of Larkinia grandis (Broderip and G.B. Sowerby I, 1829) from the NW Mexican Pacific was analyzed in relation to environmental variables, condition index (CI), and biochemical composition of different tissues. A total of 960 clams (80/month; 44.5–142.0 mm, shell height) were collected from the El Cohui estuary in the Navachiste ...
Maria Isabel Sotelo-Gonzalez +8 more
wiley +1 more source
Insect Conservation and Diversity, Volume 17, Issue 4, Page 651-675, July 2024.A double star‐like pattern in the COI haplotype network of Erebia palarica suggests a demographic expansion from two ancestral populations in this Iberian montane endemic. Seven microsatellite markers revealed a pattern of isolation by distance (IBD) along the Cantabrian Mountains, as opposed to different levels of genetic structure found in western ...
Laura Torrado‐Blanco +4 more
wiley +1 more source