Survival rates of captive-bred Asian Houbara Chlamydotis macqueenii in a hunted migratory population [PDF]
, 2016 Asian Houbara Chlamydotis macqueenii numbers are declining owing to unsustainable levels of hunting and poaching, with the main conservation response being population reinforcement through the release of captive-bred birds.
Burnside, Robert +3 more
core +1 more source
When the seasons don't fit: speedy molt as a routine carry-over cost of reproduction. [PDF]
PLoS ONE, 2013 The failure of animals to fit all life-cycle stages into an annual cycle could reduce the chances of successful breeding. In some cases, non-optimal strategies will be adopted in order to maintain the life-cycle within the scope of one year.
Maurine W Dietz +2 more
doaj +1 more source
Facultative Altitudinal Movements by Mountain White-Crowned Sparrows (Zonotrichia Leucophrys Oriantha) in the Sierra Nevada [PDF]
, 2004 Mountain White-crowned Sparrows (Zonotrichia leucophrys oriantha) winter in Mexico and often arrive in the vicinity of their breeding grounds in the Sierra Nevada well before nesting is possible.
Breuner, Creagh W. +3 more
core +3 more sources
Forecasting biodiversity in breeding birds using best practices
bioRxiv, 2017 Biodiversity forecasts are important for conservation, management, and evaluating how well current models characterize natural systems. While the number of forecasts for biodiversity is increasing, there is little information available on how well these ...
David J. Harris +2 more
semanticscholar +1 more source
The Effect of Dietary Energy and Protein Levels on Production in Breeding Female Ostriches. [PDF]
, 2003 1. In a study spanning two breeding seasons, we assessed the effect of different dietary energy and protein levels on body mass, body condition, and egg production of female ostriches. 2.
Brand, T.S., Brand, Z., Brown, Chris
core +2 more sources
Effect of geolocators on migration and subsequent breeding performance of a long-distance passerine migrant. [PDF]
PLoS ONE, 2013 Geolocators are small light-weight data loggers used to track individual migratory routes, and their use has increased exponentially in birds. However, the effects of geolocators on individual performance are still poorly known.
Debora Arlt, Matthew Low, Tomas Pärt
doaj +1 more source
Ecology and Evolution, 2019 Climate change is profoundly affecting the phenology of many species. In migratory birds, there is evidence for advances in their arrival time at the breeding ground and their timing of breeding, yet empirical studies examining the interdependence ...
Matthew Low +4 more
doaj +1 more source
Using marine isoscapes to infer movements of oceanic migrants: The case of Bulwer's petrel, Bulweria bulwerii, in the Atlantic Ocean. [PDF]
PLoS ONE, 2018 Studying the movements of oceanic migrants has been elusive until the advent of several tracking devices, such as the light-level geolocators. Stable isotope analysis (SIA) offers a complementary approach to infer areas used year-round, but its ...
Marta Cruz-Flores +3 more
doaj +1 more source
Dispersal costs set the scene for helping in an atypical avian cooperative breeder [PDF]
, 2001 The ecological constraints hypothesis is suggested to explain the evolution of cooperative breeding in birds. This hypothesis predicts that the scene for cooperative breeding is set when ecological factors constrain offspring from dispersal.
Russell, A.F.
core +2 more sources
Family living sets the stage for cooperative breeding and ecological resilience in birds
PLoS Biology, 2017 Cooperative breeding is an extreme form of cooperation that evolved in a range of lineages, including arthropods, fish, birds, and mammals. Although cooperative breeding in birds is widespread and well-studied, the conditions that favored its evolution ...
Michael Griesser +3 more
semanticscholar +1 more source