Results 31 to 40 of about 477,985 (200)

Triyodotironina, tiroxina y comportamiento reproductivo en diferentes grupos raciales bovinos [PDF]

Acta Agronómica, 1995
<p>The thyroid gland were reported in adaptation to climate variations, specially to dairy cows. The objetive of present paper is study thyroid function in the diversus breeds under tropical environmental conditions. The breeds were: Holstein Friesian, BON (White Ear-Black, native breed of Colombia), Gucerat, Holstein X Gucerat, BON x Gucerat ...
Campos Gaona Rómulo, Campos Gaona, Rómulo   +1 more
openaire   +2 more sources

Primer registro reproductivo de Haematopus palliatus (Temminck, 1820) en la zona sur del distrito de la Punta, Callao

South Sustainability
Los ostreros americanos (Haematopus palliatus) son aves playeras muy sensibles, consideradas de «preocupación menor» (LC) según la lista de especies amenazadas de fauna silvestre en el Perú.
Jorge Podestá, Daniel Barona
doaj   +1 more source

Descripción de un evento de anidación del búho real (Bubo virginianus nacurutu Vieillot, 1817) y del búho moteado (Ciccaba virgata virgata Cassin, 1849) en Huila, Colombia

Intropica, 2019
El presente estudio registra por primera vez en Colombia un evento de anidación en especies de búhos Bubo virginianus nacurutu y Ciccaba virgata virgata en el departamento de Huila, en estas especies se describen aspectos como época de anidación; tiempos
Orlando Padilla
doaj   +1 more source

Survival and Behavior of Amphibians in a Seasonally Flooded Tropical Forest

Biotropica, Volume 58, Issue 4, July 2026.
How do tropical amphibians survive seasonal flooding? A three‐year capture–mark–recapture study in Costa Rica revealed species‐specific responses to flood events, with flooding reducing apparent survival in some species while others persisted through behavioral adaptations and use of arboreal refugia.
Todd R. Lewis, Paul B. C. Grant, Rowland K. Griffin, Alex Figueroa, Gabriel David, Harry T. Bailey, Colin Ryall, Thomas C. LaDuke   +7 more
wiley   +1 more source

European mistletoe shares a similar demographic strategy with non‐parasitic plants

Journal of Ecology, Volume 114, Issue 5, May 2026.
European mistletoe (Viscum album) does not have a distinct demographic strategy from non‐parasitic plants, as quantified by time‐based life history traits. We found that mistletoe vital rates were driven by mistletoe size and position in the host tree.
Oliver G. Spacey, Owen R. Jones, Sydne Record, Sharon D. Janssen, Arya Y. Yue, Wenyi Liu, Alice Rosen, Chris J. Thorogood, Roberto Salguero‐Gómez   +8 more
wiley   +1 more source

Comportamiento de la fertilidad y número de partos en las épocas del año en un hato bovino lechero. [PDF]

, 2011
El comportamiento reproductivo del ganado bovino ha resultado siempre un tema de estudio de extraordinaria importancia, precisamente las investigaciones en este sentido van dirigidas a lograr un conocimiento integral sobre fisiología reproductiva de los ...
Castro Cerna, Jimena Estefanía
core   +2 more sources

Impacto del parasitismo de cría del Tordo Renegrido (Molothrus bonariensis) sobre el éxito reproductivo de sus hospedadores

El Hornero, 2003
Se presenta una revisión del impacto que produce el parasitismo de cría del Tordo Renegrido (Molothrus bonariensis) sobre el éxito reproductivo de sus hospedadores.
Juan C. Reboreda, Myriam E. Mermoz, Viviana Massoni, Andrea A. Astié, Fabián L. Rabuffetti   +4 more
doaj   +1 more source

Animal‐mediated seed dispersal: A review of study methods

Applications in Plant Sciences, Volume 14, Issue 1, January-February 2026.
Abstract By dispersing seeds, animals provide ecological functions critical for the ecology, evolution, and conservation of plants. We review quantitative and empirical approaches and emerging technologies to quantify processes and patterns of animal‐mediated seed dispersal (zoochory) across its phases: from predispersal to postdispersal.
Noelle G. Beckman, Erin K. Kuprewicz, Binod Borah, James M. Bullock, Amanda S. Gallinat, Juan P. González‐Varo, Abir Jain, Jun Ying Lim, Carina I. Motta, Omer Nevo, Haldre S. Rogers   +10 more
wiley   +1 more source

Mammals with large home ranges, low reproductive rates and small body sizes are most vulnerable to roads: A meta‐analysis

Journal of Applied Ecology, Volume 62, Issue 12, Page 3227-3239, December 2025.
Road mitigation for mammals should ideally be informed by site‐level knowledge and generally involve prioritizing species with the combination of larger home ranges, lower reproductive rates and smaller body sizes. To protect these vulnerable mammals from roads, we should maintain low road densities and instal small‐mesh mitigation fencing along roads.
Sean Patterson, Lenore Fahrig, Jochen A. G. Jaeger, Oriana Meek‐Sauriol, Fernanda Z. Teixeira, Aurora Torres, Trina Rytwinski   +6 more
wiley   +1 more source

Montanoa frutescens and Montanoa grandiflora Extracts Reduce Anxiety‐Like Behavior during the Metestrus‐Diestrus Phase of the Ovarian Cycle in Wistar Rats

BioMed Research International, Volume 2014, Issue 1, 2014., 2014
In previous studies, the anxiolytic‐like effects of Montanoa tomentosa and Montanoa frutescens were reported in male rats, but the potential anxiolytic‐like effects of Montanoa plants during the different phases of the ovarian cycle in rats remain to be explored. The anxiolytic‐like effects of the aqueous crude extracts of M.
Juan Francisco Rodríguez-Landa, Julio Vicente-Serna, Luis Alfredo Rodríguez-Blanco, María de Jesús Rovirosa-Hernández, Francisco García-Orduña, Miguel Carro-Juárez, Corina O. Bondi   +6 more
wiley   +1 more source