Results 161 to 170 of about 31,615 (305)

Assessment of large‐scale spatial variation in age‐specific survival and age at first breeding in a long‐lived species

Journal of Animal Ecology, EarlyView.
Using nationwide data from over 92,000 individuals, we reveal large‐scale spatio‐temporal variation in age‐dependent survival and age at first breeding in a long‐lived species. By comparing alternative spatial models, we show that demographic variation follows a biologically meaningful spatial structure, with implications for population dynamics ...
Matia Haïm Muller, Fabian R. Ketwaroo, Wolfgang Fiedler, Olaf Geiter, Christof Herrmann, Michael Schaub   +5 more
wiley   +1 more source

Louse Flies on the Fly: Host Macroecology Shapes Interspecific Variation in Ectoparasite Prevalence Among Migrating Birds. [PDF]

Ecol Evol
We analysed over 100,000 migrating birds from 157 species to identify macroecological drivers of interspecific variation in louse fly prevalence. Using phylogenetically informed Bayesian models, we show that host morphology, ecology and biogeographic traits shape infection patterns, with Ornithomya avicularia and O.
Janiszewska A, Minias P, Włodarczyk R, Kamiński M, Jakubas D, Remisiewicz M, Sztwiertnia H, Bartos M.   +7 more
europepmc   +2 more sources

Knowledge discovery from mining the association between H5N1 outbreaks and environmental factors

, 2010
The global spread of highly pathogenic avian influenza H5N1 in poultry, wild birds and humans, poses a significant panzootic threat and a serious public health risk.
Si, Y., Wang, Tiejun; id_orcid, Prins, H. H T, Wang, T., Si, Y. L., Skidmore, A.K., Wang, Tiejun, Skidmore, A. K., Prins, H.H.T.   +8 more
core  

Cardiovascular Plasticity and Adaptation of High‐Altitude Birds and Mammals

Integrative Zoology, EarlyView.
This schematic depicts the cardiovascular adaptations of mammals and birds to high‐altitude hypoxia. It highlights key phenotypic changes in oxygen transport and cardiac responses, driven by molecular mechanisms including transcriptional regulation and genetic modifications.
Huishang She, Yanhua Qu
wiley   +1 more source

Efficient Masked Autoencoder for Birdsong Representation with Applications on Wild Bird Species Classification

Integrative Zoology, EarlyView.
Research on mosquito feeding preferences and the malaria parasites they transmit is essential for understanding the interactions between hosts, vectors, and parasites. In this study, vertebrate hosts were identified in 72 mosquitoes. Most blood meals (58.7%) came from birds, representing 25 species, while 40.0% came from mammals (13 species), and 1.3 ...
Qin Zhang, Shipeng Hu, Hengrui Wang, Jizheng Yi, Guoxiong Zhou, Xiangyu Shen, Weixiong Peng, Zhishu Xiao, Aibin Chen   +8 more
wiley   +1 more source

Effects of Vector Density on Blood Parasite Spread and Health Consequences for Avian Hosts: An Experimental Epidemiology Blueprint

Integrative Zoology, EarlyView.
In an experimental epidemiology setup, groups of pigeons were exposed to different numbers of infective malaria vectors. Vector number explained the speed of transmission, the final prevalence, and changes in host behavior. ABSTRACT Vector density plays a critical role in the transmission dynamics of vector‐borne diseases and thus in their health and ...
Nayden Chakarov, Tim Brandler, Kai Fischer, Carmen Schwietz   +3 more
wiley   +1 more source

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

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

When and why to give shorebirds a head start

Conservation Biology, EarlyView.
Abstract Headstarting is a translocation technique involving the hatching or rearing of wild eggs or young in captivity and the release of those individuals back to the wild at or before independence. It has been trialed as a conservation intervention for shorebirds over recent decades to improve the population trend of target populations by increasing
Lynda Donaldson, Alex Nicol‐Harper, Rebecca Lee, Nigel S. Jarrett, Geoff M. Hilton   +4 more
wiley   +1 more source