Annual molt period and seasonal color variation in the Eared Dove´s crown.

Autor: Diego J Valdez, Santiago M Benitez-Vieyra

Publikováno v: PLoS ONE, Vol 18, Iss 2, p e0280819 (2023)

Molting is an important process in which old and worn feathers are exchanged for new ones. Plumage color is determined by pigments such as carotenes, melanin and by the ultrastructure of the feather. The importance of plumage coloration has been wide

Externí odkaz: https://doaj.org/article/b02aa5abcdaf4066a4e4cae82cde29fd

Food supplementation by an invasive fleshy‐fruited shrub sustains body condition of a native frugivorous bird during winter

Autor: Tobias Nicolas Rojas, David L. Vergara-Tabares, Diego J. Valdez, Marina Flavia Ponzio, Susana Ines Peluc

Publikováno v: CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET

Birds tend to adjust their behavior and physiology to changes in food availability in their environment. Seasonal fluctuation of food resources may act as an energetic challenge, augmenting hypothalamus–pituitary–adrenal axis (HPA axis) activity,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::38fd034efe425bab4f25ff06a818818b
https://doi.org/10.1111/1749-4877.12353

Reproduction in the Eared Dove: An exception to the classic model of seasonal reproduction in birds?

Autor: Tomas Cristian Tempesti, Susana Ines Peluc, Diego J. Valdez, Gustavo M. Somoza, Ludmila Maldonado

Publikováno v: Zoology (Jena, Germany). 140

In avian species living at high altitudes and latitudes, reproductive events are largely controlled by photoperiod, with changes being perceived mainly through encephalic photoreceptors located in the hypothalamus. It is known that during long day pe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::132e3057a004ca424c94ffe18625da8b
https://pubmed.ncbi.nlm.nih.gov/32251889

Efficiency of antipredator training in captive-bred greater rheas reintroduced into the wild

Autor: Marilina Vera Cortez, Diego J. Valdez, Mónica B. Martella, Joaquin Luis Navarro

High post-release mortality of captive greater rheas reintroduced into the wild might be mitigated with antipredator training that helps released individuals recognize their predators. We analyzed whether captive-bred greater rheas conserve antipreda

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d34b01ce7b85aa1c5760c8af2fcd81a9
http://link.springer.com/article/10.1007/s10211-014-0206-4

Seasonal changes in plasma levels of sex hormones in the greater Rhea (Rhea americana), a South American Ratite with a complex mating system

Autor: Natalia Soledad Della Costa, Joaquin Luis Navarro, Mónica B. Martella, Alvina Leche, Marilina Vera Cortez, Cristian Hansen, Diego J. Valdez

Publikováno v: PLoS ONE
PLoS ONE, Vol 9, Iss 5, p e97334 (2014)
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET

Seasonal rhythm in sex hormones has been extensively studied in birds, as well as its relationship with the type of mating system. The Greater Rhea (Rhea americana), a South American ratite species, reproduces seasonally and has a complex mating syst

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7745ffa1558f1f718e6ffca96fccb2fe
https://pubmed.ncbi.nlm.nih.gov/24837464