Results 131 to 140 of about 31,615 (305)
, 2017 Obligate insectivorous birds breeding in high latitudes travel thousands of kilometres during annual movements to track the local seasonal peaks of food abundance in a continuously fluctuating resource landscape. Avian migrants use an array of strategies
Åkesson, Susanne, +3 more
core +1 more source
Monitoring GPS‐collared moose by ground versus drone approaches: efficiency and disturbance effects
Wildlife Biology, EarlyView.Efficient wildlife management requires precise monitoring methods, for example to estimate population density, reproductive success, and survival. Here, we compared the efficiency of drone (equipped with a RGB camera) and ground approaches to detect and observe GPS‐collared female moose Alces alces and their calves. We also quantified how drone (n = 42)
Martin Mayer +8 more
wiley +1 more source
Ontogenetic shifts from social to experiential learning drive avian migration timing. [PDF]
Nat Commun, 2021 Abrahms B +3 more
europepmc +1 more source
Wildlife Biology, EarlyView.Multiple management strategies exist to combat bird damage to agriculture. We explored combining two tools, drones as frightening devices and an avian repellent, to assess effectiveness of an integrated method to deter large flocks on complex landscapes. We evaluated the ability of a spraying drone (DJI Agras MG‐1P) deploying Avian Control (i.e. active
Jessica L. Duttenhefner +2 more
wiley +1 more source
Wildlife Biology, EarlyView.Drones are used to monitor bird nesting sites at less accessible locations, such as on cliffs, human infrastructure, or within the tree canopy. While there are a growing number of studies documenting avian behavioral responses to various drones, there is a continued need to monitor taxa‐specific responses to different drone models. We explored both the
Natasha K. Murphy +4 more
wiley +1 more source
Carryover effects of long-distance avian migration are weaker than effects of breeding environment in a partially migratory bird. [PDF]
Sci Rep, 2021 Buchan C +7 more
europepmc +1 more source
Towards a framework for understanding the evolution of avian migration
Journal of Avian Biology, 2002 Bird migration has fascinated humans for millennia. Consequently many scientific studies have investigated in detail the physiology and ecology of migration. A large number of authors also have explored the evolution of migration. A typical conclusion is that "migration" evolved in a tropical, sedentary avian ancestor. There is, in fact, no evidence to
openaire +1 more source
Risk assessment to demonstrate freedom of highly pathogenic avian influenza (HPAI) in Timor Leste
, 2011 The highly pathogenic avian influenza (HPAI) virus was the cause of a pandemic of avian influenza which affected poultry from most parts of the world. In contrast to most Southeast Asian countries where HPAI is endemic, Timor Leste is currently free from
Cardoso Amaral, Acacio
core
Wildlife Biology, EarlyView.Wildlife research has benefitted from the development of new methods that allow data to be collected remotely, with less disturbance to focal animals. The proliferation of livestreaming webcams, for example, those used by nature reserves for public engagement purposes, have offered new possibilities for the study of wildlife behaviour.
Kevin A. Wood +2 more
wiley +1 more source
Development of lateralization of the magnetic compass in a migratory bird
, 2012 The magnetic compass of a migratory bird, the European robin (Erithacus rubecula), was shown to be lateralized in favour of the right eye/left brain hemisphere.
Wiltschko, Wolfgang +9 more
core +1 more source