Results 91 to 100 of about 373,378 (243)

Top-down control of herbivory by birds and bats in the canopy of temperate broad-leaved oaks (Quercus robur) [PDF]

open access: yes, 2011
The intensive foraging of insectivorous birds and bats is well known to reduce the density of arboreal herbivorous arthropods but quantification of collateral leaf damage remains limited for temperate forest canopies.
Wells Konstans   +13 more
core   +2 more sources

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

open access: yesIntegrative 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   +3 more
wiley   +1 more source

Virulence and Antimicrobial Resistance Patterns of Salmonella spp. Recovered From Migratory and Captive Wild Birds

open access: yesVeterinary Medicine and Science
Background Salmonella spp., especially those are resistant to extended‐spectrum β‐lactamase (ESBL), are considered as major concern to global health due to their emergence and dissemination.
Ruhena Begum   +10 more
doaj   +1 more source

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

open access: yesIntegrative 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   +5 more
wiley   +1 more source

Pseudomonas aeruginosa in Wild and Captive Birds: Prevalence, Antimicrobial Resistance, Pathology and One Health Relevance [PDF]

open access: yesMedicamentul Veterinar
Pseudomonas aeruginosa is an opportunistic ESKAPE pathogen of growing importance in avian medicine and wildlife health. Birds whether free-living, captive, or kept as companions frequently encounter environmental and anthropogenic sources of ...
Cocos Daiana Maria   +7 more
doaj  

Uncovering the Process of Sexual Segregation: Male Early‐Life Individual Tactics Shape Its Onset and Affect Phenotypic Quality in a Large Mammal

open access: yesIntegrative Zoology, EarlyView.
Early‐life traits significantly influence sexual segregation patterns and phenotypic quality in male fallow deer. Males in better condition and those more risk‐prone left natal groups earlier with fewer returns to natal groups. However, males with frequent excursions back to natal groups compensated for initial body condition disadvantages.
Cong Yu   +8 more
wiley   +1 more source

Experimental studies of social foraging in budgerigars, Melopsittacus undulatus [PDF]

open access: yes, 2015
Many animals are social foragers. Foraging with others may confer a number of advantages, but is also likely to present a number of challenges that are not encountered by solitary foragers.
Cowie, Alice
core   +2 more sources

Isolation and genetic characterization of Toxoplasma gondii from free-ranging and captive birds and mammals in Pernambuco state, Brazil

open access: yesRevista Brasileira de Parasitologia Veterinária, 2018
Recent genetic population studies on Toxoplasma gondii in Brazil have shown large genetic variability. The objective of the present study was to isolate and genotypically characterize T.
Marcio André Silva   +10 more
doaj   +1 more source

Availability of a Keystone Plant Resource Reduces Niche Overlap and Drives Distinct Species‐Specific Changes in Niche Breadth Among Small Rodents

open access: yesIntegrative Zoology, EarlyView.
We investigated how three rodent species respond to the seasonal availability of Araucaria angustifolia seeds. While Oligoryzomys spp. increased seed consumption and abundance during seed production, the more insectivorous Akodon paranaensis maintained a broader diet.
Adriana A. Perini, Emerson M. Vieira
wiley   +1 more source

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