Breeding Phenology and Nesting Success of the Yucatan Wren in the Yucatan Peninsula, Mexico

Autor: Jesús Vargas-Soriano, Griselda Escalona Segura, Javier Salgado Ortíz
Rok vydání: 2010
Předmět:
Zdroj: The Wilson Journal of Ornithology. 122:439-446
ISSN: 1938-5447
1559-4491
DOI: 10.1676/08-164.1
Popis: The Yucatan Wren (Campylorhynchus yucatanicus) is a highly restricted endemic species inhabiting the coastal scrub at the northern portion of the Yucatan Peninsula. We describe the breeding phenology and nesting success of this endangered species from April to September 2007 for a population at Ria Celestun Biosphere Reserve. We found 232 nests of which only 110 (47%) were active at either incubation or nestling stages. Yucatan wrens initiated nest building in late April, but clutch initiation occurred in early June and lasted until the end of July, resulting in a breeding season of 2 months. Nests were exclusively in coastal scrub and the transition between coastal scrub and black mangrove (Avicennia germinans) forest. Eleven species of trees were used as nesting substrate, but three included 75% of all nests found. Clutch size (x¯ ± SD) was 3 ± 1.5 eggs with incubation and nestling periods averaging 16 ± 1.0 days, and 16.5 ± 1.9 days, respectively. Mayfield estimates of daily survival rate for ...
Databáze: OpenAIRE