Results 91 to 100 of about 28,695 (215)

Unraveling Occurrence Patterns and Diversity of Avian Malaria Parasites in Iberian Obligate and Facultative Scavenger Birds

Integrative Zoology, EarlyView.
Low overall haemosporidian occurrence (3.4%; 13/383). Unexpected high lineage diversity (10 new host–parasite interactions). Novel Leucocytozoon lineage (GYPBAR01) in all European vultures except the griffon vulture. Plasmodium relictum (lineage SGS1) in adult red kites.
Pilar Oliva‐Vidal, Jaime Muriel, Alfonso Marzal, Grethell Mabel López del Aguila, José María Martínez, Antoni Margalida   +5 more
wiley   +1 more source

When to depart from a stopover site? Time since arrival matters more than current weather conditions

Ornithology, 2020
On the journey to wintering sites, most migratory birds alternate between flights and stopovers, where they rest and refuel. In contrast to the time-minimization strategy commonly assumed to drive the pre-breeding migration, birds are rather expected to ...
S. Roques, P. Henry, Gaétan Guyot, B. Bargain, E. Cam, R. Pradel   +5 more
semanticscholar   +1 more source

Genomic Content in Avian Haemosporidian Parasites Suggests Co‐Regulation of Apicoplast and Mitochondrial Nucleoids

Integrative Zoology, EarlyView.
Apicoplast genomic content and mitochondrial genomic content were found to be strongly correlated (rho = 0.93) for infections going from low to high. Apicoplast and mitochondrial genomic content were deemed as more predictive factors of parasitemia for different infection intensities.
Gaia Porporato, Peter Pibaque, Alanis Cruz Flores, Simone Cescutti, Nayden Chakarov   +4 more
wiley   +1 more source

Domination Versus Sisterhoods in the Blood Microbiota of Migrating Birds: Patterns of Within‐ and Between‐Individual Blood Parasite Diversity Revealed Through Metabarcoding

Integrative Zoology, EarlyView.
Avian haemosporidian blood parasites are typically identified through Sanger sequencing of a partial cytochrome b fragment, the MalAvi barcoding region. Next‐generation sequencing is seldom used for avian blood parasite identification; this study demonstrates a higher detection rate of co‐infections via metabarcoding and its possible implications ...
Peter Pibaque, Gaia Porporato, Simone Cescutti, Alanis Cruz‐Flores, Tobias Busche, Anika Winker, Tim Maximilian Rapp, Patrick Bergkamp, Anna Doneva, Nayden Chakarov   +9 more
wiley   +1 more source

Stopover decision during migration: physiological conditions predict nocturnal restlessness in wild passerines [PDF]

Biology Letters, 2009
During migration, a number of bird species rely on stopover sites for resting and feeding before and after crossing ecological barriers such as deserts or seas. The duration of a stopover depends on the combined effects of environmental factors, endogenous programmes and physiological conditions.
FUSANI, Leonida, M. Cardinale, C. Carere, W. Goymann   +3 more
openaire   +5 more sources

movetrack: An R package to model flight paths from radio‐telemetry networks

Methods in Ecology and Evolution, EarlyView.
Abstract Tracking small‐ to large‐scale movements of animals is important for studying their interactions with the environment, including how they adjust and adapt their migration in response to environmental and human‐induced changes. Despite the technical progress in tracking devices, a major challenge remains for small animals—such as songbirds ...
Georg Rüppel, Thiemo Karwinkel, Vera Brust, Heiko Schmaljohann   +3 more
wiley   +1 more source

When First Nations Don't Count: H.V. Evatt and the Erasure of Palestinian Rights

Australian Journal of Politics &History, EarlyView.
As Minister for External Affairs in the Chifley Government, Herbert Vere Evatt played a pivotal role at the United Nations in securing the partition of Palestine and recognition of the State of Israel. These endeavours were represented by Evatt and in subsequent commentary as exemplifying Evatt's commitment to justice.
Jeff Rickertt
wiley   +1 more source

Do birds select habitat or food resources? Nearctic-neotropic migrants in northeastern Costa Rica. [PDF]

PLoS ONE, 2014
Nearctic-neotropic migrant birds need to replenish energy reserves during stopover periods to successfully complete their semiannual movements. In this study we used linear models to examine the habitat use of 11 migrant species in northeastern Costa ...
Jared D Wolfe, Matthew D Johnson, C John Ralph   +2 more
doaj   +1 more source

Modelling the national breeding distribution and population size of an elusive forest bird, the Eurasian Woodcock (Scolopax rusticola)

Ibis, EarlyView.
Understanding the distribution of species is central to conservation biology. Species distribution modelling (SDM) is a standard method used for this purpose, especially for elusive species for which limited occurrence data exist. The Eurasian Woodcock Scolopax rusticola (hereafter Woodcock) is an elusive, woodland‐dwelling wader that is declining in ...
James O'Neill, Paul Holloway, Jamie Darby, Andrew Hoodless, John L. Quinn   +4 more
wiley   +1 more source

Automated VHF Radiotelemetry Revealed Site-Specific Differences in Fall Migration Strategies of Semipalmated Sandpipers on Stopover in the Gulf of Maine

Frontiers in Ecology and Evolution, 2019
The Gulf of Maine has long been recognized as a major stopover area for shorebirds in fall. Knowing how birds move within and beyond the region will be paramount to protecting threatened shorebird habitat.
Rebecca L. Holberton, Philip D. Taylor, Philip D. Taylor, Lindsay M. Tudor, Kathleen M. O'Brien, Glen H. Mittelhauser, Ana Breit   +6 more
doaj   +1 more source