Results 21 to 30 of about 10,647,434 (247)

Survival rates and causes of death in Tengmalm’s owl offspring during the post-fledging dependence period in Central and North Europe

Frontiers in Ecology and Evolution
Offspring survival rates in altricial birds during the post-fledging period are an essential factor in determining the fitness of parents and have a significant impact on general population dynamics.
Marek Kouba, Luděk Bartoš, Luděk Bartoš, Filip Tulis, Filip Tulis, Simona Stehlíková Sovadinová, Erkki Korpimäki   +6 more
doaj   +2 more sources

Individual and environmental effects on the extent of the post-fledging dependence period in an Endangered neotropical raptor

Endangered Species Research
In altricial birds, the post-fledging dependence period (PFDP) is a fundamental life-history stage with direct consequences for survival, dispersal, and future reproduction.
D Gallego-García, BD Watts, JH Sarasola
doaj   +2 more sources

Factors affecting the length of the post-fledging period in the Bonelli's Eagle Hieraaetus fasciatus

, 2013
We investigated factors associated with the length of the post-fledging dependence period in 28 radio-tagged young Bonelli's Eagles Hieraaetus fasciatus monitored from 1998 to 2000. Under the assumptions of the Resource Competition Hypothesis (RCH), we predicted that young hatched in high-quality territories would have longer post-fledging dependence ...
Balbontín, Javier, Ferrer, Miguel
openaire   +2 more sources

Observations of Red-headed Falcon Falco chicquera (Aves: Falconiformes: Falconidae) nest at Keraniganj, Dhaka, Bangladesh, with a focus on post-fledging behavior

Journal of Threatened Taxa, 2015
A nest of Red-headed Falcon Falco chicquera was observed in 2009, beginning with the onset of breeding and continuing on to the next breeding of the pair.
Mohammod Foysal
doaj   +3 more sources

Differential movement patterns of juvenile Tengmalms owls (Aegolius funereus) during the post-fledging dependence period in two years with contrasting prey abundance. [PDF]

PLoS ONE, 2013
Fledgling behaviour and movement patterns throughout the post-fledging dependence period (PFDP), especially in relation to changing environmental conditions, have been rarely studied, despite the fact that this period is recognized as of crucial ...
Marek Kouba, Luděk Bartoš, Karel Štastný   +2 more
doaj   +1 more source

Habitat use and characteristics of Connecticut Warbler during the nesting and post-fledging period

, 2020
These data were collected as a part of an effort to study the nesting ecology of Connecticut Warbler (Oporornis agilis). The fledgling_vegetation_data and associated fledgling_vegetation_metadata file contains vegetation survey data that was collected at
Grinde, Alexis
core   +1 more source

Early life conditions influence fledging success and subsequent local recruitment rates in a declining migratory songbird, the Whinchat Saxicola rubetra

Ecology and Evolution, 2023
Life history traits and environmental conditions influence reproductive success in animals, and consequences of these can influence subsequent survival and recruitment into breeding populations.
Chay Halliwell, Martin Ketcher, Amanda Proud, Stephen Westerberg, David J. T. Douglas, Malcolm D. Burgess   +5 more
doaj   +1 more source

The contribution of flight capability to the post‐fledging dependence period of golden eagles

Journal of Avian Biology, 2018
The period prior to an individual emigrating from its natal site and initiating dispersal is important for developing the skills that are ultimately required for surviving natal dispersal. Using a novel method to quantify the early movements of 35 juvenile golden eagles fitted with satellite transmitters, we hypothesised that variation in golden eagles’
Ewan D. Weston, D. Philip Whitfield, Justin M. J. Travis, Xavier Lambin   +3 more
openaire   +1 more source

Insights into the development of a juvenile harpy eagle’s hunting skills [PDF]

Acta Amazonica, 2019
The post-fledging period is of paramount importance for raptors, since this is when a juvenile develops its hunting skills and gains the abilities required in adulthood and independence through dispersal.
Thiago CAVALCANTE, Carlos Augusto TUYAMA, Italo MOURTHE   +2 more
doaj   +1 more source

Thinking like a duck: fall lake use and movement patterns of juvenile ring-necked ducks before migration. [PDF]

PLoS ONE, 2014
The post-fledging period is one of the least studied portions of the annual cycle in waterfowl. Yet, recruitment into the breeding population requires that young birds have sufficient resources to survive this period.
Charlotte L Roy, John Fieberg, Christopher Scharenbroich, Christine M Herwig   +3 more
doaj   +1 more source