Results 151 to 160 of about 12,817 (256)

Changes in flea and tick infestation following topical fipronil, permethrin, piperonyl butoxide, and pyriproxyfen in naturally infested dogs: an exploratory uncontrolled field study. [PDF]

Front Vet Sci
Romero-Núñez C, Heredia-Cárdenas R, Flores-Ortega A, Bautista-Gómez LG, Gaxiola-Camacho SM, Torres-Cruz JD.   +5 more
europepmc   +1 more source

Assessing the microstructure of simple rhamphothecae in chickens (Aves: Galliformes: Gallus gallus domesticus)

Journal of Anatomy, Volume 249, Issue 5, Page 1099-1111, November 2026.
Simple rhamphotheca are externally homogeneous but internally are composed of several corneous layers with varying hardness. Areas under more mechanical stress such as the rostral portion and the tomia are significantly harder than other areas. Abstract Corneous sheaths on the jaws of beaked tetrapods, or rhamphothecae, are classified as simple or ...
Khanh H. T. To, Michelle R. Stocker, Tobin L. Hieronymus   +2 more
wiley   +1 more source

The evolutionary and ecological factors that shape ectoparasite populations and communities at multiple scales

Although parasites are one of the most prolific and diverse consumer groups on the planet, they are often excluded from biodiversity surveys as they are difficult to detect and identify.
Sauk, Alexandra
core  

Identification of Ectoparasites Infesting Domestic Chickens and Evaluation of Control Practices Across Production Systems in and Around Dire Dawa, Ethiopia. [PDF]

J Parasitol Res
Elmi YA, Shimelis S, Alemu S, Ambaw YG, Wubaye AM, Kallu SA.   +5 more
europepmc   +1 more source

Asymmetric Migration Shapes Genetic Structure of the Invasive Avian Vampire Fly (Philornis downsi) Across the Galápagos Islands

Molecular Ecology, Volume 35, Issue 21, November 2026.
ABSTRACT Biological invasions on islands provide a natural framework to study how dispersal and connectivity influence evolutionary and ecological processes. The avian nest parasitic fly, Philornis downsi—first recorded in Darwin's finch nests in 1997—causes high mortality in endemic land birds, yet its inter‐island and sex‐specific patterns of ...
Abbie C. Hay, Sonia Kleindorfer, Lauren K. Common, Sally Potter, Jennifer A. H. Koop, George E. Heimpel, Sarah A. Knutie, Birgit Fessl, Lorraine Pérez‐Beauchamp, Rachael Y. Dudaniec   +9 more
wiley   +1 more source

Editorial Note: Ectoparasite survey of schoolchildren in the Republic of Guinea. [PDF]

PLOS Glob Public Health
PLOS Global Public Health Editors.
europepmc   +1 more source

Relationships Among MHC Diversity, Parasites and Secondary Sexual Colouration

Molecular Ecology, Volume 35, Issue 21, November 2026.
ABSTRACT Sexual selection via honest (costly) signals of fitness can generate patterns in immunogenetic diversity at the major histocompatibility complex (MHC). MHC diversity explains variation in immunocompetence—and therefore fitness—thus impacting the ability to generate honest signals.
Allegra E. Love, Jackie Lighten, Cock van Oosterhout, Alexander S. T. Papadopulos, Stanley D. King, Ian G. Paterson, Lari C. Delaire, Lyndsey Baillie, Ian R. Bradbury, Janay A. Fox, Felipe Perez‐Jvostov, Felipe Dargent, Marilyn Scott, Gregor F. Fussmann, Andrew P. Hendry, Paul Bentzen, Kiyoko M. Gotanda   +16 more
wiley   +1 more source

Ectoparasite Infestations in Wild Mammals from the Lake Van Basin, Eastern Türkiye, with Notes on New Host Records. [PDF]

Insects
Yılmaz AB, Afşar M, Yasul M, Afshar MT, Ayan A, Ayan ÖO, Göz Y, Aslan L.   +7 more
europepmc   +1 more source

Ectoparasite fauna of the lebranche mullet, Mugil liza, from a coastal lagoon in the Southwestern Atlantic. [PDF]

Rev Bras Parasitol Vet
Cavalheiro LF, Duarte R, Silva Júnior MAS, Tubino RA, Santos-Clapp MDD.   +4 more
europepmc   +1 more source

Ecological Mechanisms Underlying the Persistence of <i>Yersinia pestis</i> in the Natural Plague Foci of Kazakhstan: An Integrated Ecological Framework. [PDF]

Pathogens
Abdel Z, Meka-Mechenko T, Zhumadilova Z, Mussagalieva R, Abdirassilova A, Baitursyn B, Zarkymanova A, Abdeliyev B, Shaki N, Issaeva S.   +9 more
europepmc   +1 more source