Results 91 to 100 of about 59,664 (266)

Expanding on expansus: a new species of Scaphanocephalus from North America and the Caribbean based on molecular and morphological data

Parasitology
Members of the genus Scaphanocephalus mature in accipitrids, particularly osprey, Pandion haliaetus, with metacercaria causing Black Spot Syndrome in reef fishes.
Sean A. Locke, Dana M. Calhoun, José M. Valencia Cruz, Erika T. Ebbs, Sandra C. Díaz Pernett, Vasyl V. Tkach, John M. Kinsella, Mark A. Freeman, Christopher A. Blanar, Pieter T. J. Johnson   +9 more
doaj   +1 more source

Differences in Habitat Quality Drive Behavioral Contrasts in Two Family Groups of the Critically Endangered Hainan Gibbon (Nomascus hainanus)

Integrative Zoology, EarlyView.
Habitat quality variation drove distinct behavioral strategies: GC (resource‐rich group) behaviors were influenced by food availability, safety and stability, while GE (resource‐scarce group) behaviors relied more on topography, food, and nutrients. Seasonal behavioral flexibility was demonstrated, with food variables dominating in the dry season and ...
Shuai Liu, Dexu Zhang, Eric I. Ameca, Guangyu Wang, Chenglin Cai, Wenxing Long, Yuan Chen, Shrestha Anil   +7 more
wiley   +1 more source

Sex‐Specific Involvement of Gut Microbiota in Behavioral and Endocrine Responses to Chronic Predator Odor in Brandt's Voles

Integrative Zoology, EarlyView.
18 days of predator odor exposure altered gut microbiota, increased anxiety‐like behaviors, and elevated hypothalamic–pituitary–adrenal axis activity in Brandt's voles, with males showing behavioral habituation and females remaining sensitive. Cecal microbiota transplantation experiments confirmed that only female recipients of microbiota from predator‐
Chen Gu, Ruiping Xu, Baofa Yin, Ruiyong Wu, Youheng Wei, Dehua Wang, Wanhong Wei   +6 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

Dorsal anchoring: an alternative to the pectoral harness for the attachment of transmitters to raptors

Journal of Field Ornithology
Telemetry is a valuable tool for the study of bird behavior and ecology. However, traditional methods of transmitter attachment may cause physical discomfort, affecting the health and even the survival of the tagged birds.
André Beal-Galina, José PM Costa, Raone Beltrão-Mendes, Juan Ruiz-Esparza, Stephen F. Ferrari   +4 more
doaj   +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

Mortality in the Hawaiian Short-eared Owl (Pueo, Asio flammeus sandwichensis ): causes and spatial trends

Journal of Field Ornithology
Trends in wildlife mortality can be particularly challenging to identify in low-density species where mortalities are less likely to be detected or documented.
Stephanie Bell, Maia Buswell, Chad J. Wilhite, Molly Hagemann, Derek Risch, Laura Luther, Linda Elliott, Rachel S Sprague, Thierry M. Work, Melissa R Price   +9 more
doaj   +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

Water Use Behavior of Individual Birds: Ring Ouzels in an Arid High‐Mountain Ecosystem

Integrative Zoology, EarlyView.
Water is a limiting resource for birds in arid ecosystems. Individual birds differ strongly in how they use shared water sources, with drinking behavior increasing with temperature. Behavioral differences, hierarchy, and social context ultimately shape unequal access to water within the population. ABSTRACT Water availability strongly constrains animal
Tamara Burgos, Juan P. González‐Varo, Juan Carlos Illera, Manuel Nogales, Beatriz Rumeu   +4 more
wiley   +1 more source

Spatially realistic dynamic N‐mixture models

Methods in Ecology and Evolution, EarlyView.
Abstract Dispersal is a complex ecological process that can be driven by the abiotic environment, density‐dependent processes and species mobility. Traditionally, dispersal has been studied with capture‐based data that are often limited in space and time. More recently, spatial dynamic N‐mixture models (i.e.
Qing Zhao, Paige E. Howell, Erin Muths, Brent H. Sigafus, Blake R. Hossack, Christopher E. Latimer   +5 more
wiley   +1 more source