Search results for "GLS logger"

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Seabirds mated for life migrate separately to the same places: behavioural coordination or shared proximate causes?

2015

Long-term pair bonds occur in diverse animal taxa, but they are most common in birds, and can last from a few years to a lifetime. In many of these species, after the reproductive season, birds migrate to distant nonbreeding grounds where they remain for several months, and until recently, little was known about whether partners maintain contact during migration. This gap in knowledge was primarily due to past methodological difficulties in tracking long-term, large-scale movements of individuals. However, the development of new animal-borne geolocation devices has enabled researchers to track movements of individuals for a year or more. We tracked the annual migrations of both members of b…

Global location sensorGLS loggerCalonectris diomedeapartner coordinationbiologyEcologyBehavioural strategycarryover effectinbreedingbehavioural strategy; carryover effects; global location sensor; GLS logger; inbreeding; mate fidelity; movement ecology; partner coordinationbiology.organism_classificationReproductive seasonEcology Evolution Behavior and SystematicBehavioural strategy; Carryover effects; Global location sensor; GLS logger; Inbreeding; Mate fidelity; Movement ecology; Partner coordination; Ecology Evolution Behavior and Systematics; Animal Science and ZoologyMovement ecologyGeolocationSettore AGR/11 - Entomologia Generale E ApplicataGeographyNatal homingMate fidelityAnimal Science and ZoologyInbreedingEcology Evolution Behavior and Systematics
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Individual consistency and sex differences in migration strategies of Scopoli’s shearwaters Calonectris diomedea despite year differences

2014

Abstract Recently-developed capabilities for tracking the movements of individual birds over the course of a year or longer has provided increasing evidence for consistent individual differences in migration schedules and destinations. This raises questions about the relative importance of individual consistency versus flexibility in the evolution of migration strategies, and has implications for the ability of populations to respond to climatic change. Using geolocators, we tracked the migrations of Scopoli’s shearwaters Calonectris diomedea breeding in Linosa (Italy) across three years, and analysed timing and spatial aspects of their movements. Birds showed remarkable variation in their …

education.field_of_studyCalonectris diomedeabiologyEcologyPopulationDestinationsAvian migration GLS loggers Repeatability Individual strategiesbiology.organism_classificationGeographySettore AGR/11 - Entomologia Generale E ApplicataConsistency (statistics)Animal Science and ZoologyeducationDemography
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