Results 31 to 40 of about 11,600 (153)
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
doaj +1 more source
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
doaj +1 more source
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
Hemodynamic on abdominal aortic aneurysm: Parametric study [PDF]
, 2014 Peer ReviewedPostprint (author's final ...
Soudah Prieto, Eduardo
core +1 more source
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
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
Determinación de valores de referencia para hematología, química sérica clínica, y morfometría de la tortuga negra (Chelonia agassizii) en la poza del nance, Sipacate, la gomera, Escuintla. [PDF]
, 2011 Tomé muestras de sangre y medidas morfometricas de 30 tortugas negras Chelonia agassizii de ambos sexos, en la poza del Nance, Sipacate, La Gomera, Escuintla.
Mérida López, Andrea Melissa
core
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
Revista del Museo de Antropologia, 2009 En poblaciones vivas, los camélidos silvestres sudamericanos son sexados a partir de la observación de su conducta social y reproductiva. Por lo general, tanto biólogos como arqueólogos asumen la ausencia de caracteres morfológicos que evidencien un ...
Cristian Ariel Kaufmann +1 more
doaj +1 more source
Tecnociencia, 2020 Se determinó los aspectos biométricos, y el desarrollo gonadal de la concha negra Anadara tuberculosa en el estero Caté, localizado en el Golfo de Montijo, a los 7º 44’ 25” N y 81º 13’ 32” O.
Annisamyd Del Cid E. +5 more
doaj +1 more source