Half a world apart? overlap in nonbreeding distributions of Atlantic and Indian ocean thin-billed prions [PDF]
, 2015 Distant populations of animals may share their non-breeding grounds or migrate to distinct areas, and this may have important consequences for population differentiation and dynamics.
Cherel, Yves +7 more
core +9 more sources
Intra-tropical movements as a beneficial strategy for Palearctic migratory birds [PDF]
Royal Society Open Science, 2018 Migratory birds often move significantly within their non-breeding range before returning to breed. It remains unresolved under which circumstances individuals relocate, whether movement patterns are consistent between populations and to what degree the ...
Jaroslav Koleček +3 more
doaj +1 more source
Czech Journal of Animal Science, 2019 The emu (Dromaius novaehollandiae) is considered a versatile farm species whose main by-products are meat and oil. At present, there is lack of information on the value of the meat of laying females at the end of their reproductive cycle which hampers ...
Mateusz Bucław +3 more
doaj +1 more source
Variation in female reproductive tract morphology across the reproductive cycle in the zebra finch [PDF]
PeerJ, 2020 Background In seasonally breeding birds, the reproductive tract undergoes a dramatic circannual cycle of recrudescence and regression, with oviduct size increasing 5–220 fold from the non-breeding to the breeding state.
Laura L. Hurley +3 more
doaj +2 more sources
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
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
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
High daily energy expenditure of incubating shorebirds on High Arctic tundra: a circumpolar study [PDF]
, 2003 1. Given the allometric scaling of thermoregulatory capacity in birds, and the cold and exposed Arctic environment, it was predicted that Arctic-breeding shorebirds should incur high costs during incubation.
Amat +38 more
core +4 more sources
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
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