C. D. Gornatti Churria, G. Vigo, M. Machuca, M. Píscopo, M. Herrero Loyola and M. Petruccelli 1 Cátedra de Patología de Aves y Pilíferos y Laboratorio de Diagnóstico de Enfermedades de las Aves y los Pilíferos, Facultad de Ciencias Veterinarias, 60 y 118 s/n, Universidad Nacional de La Plata, La Plata, Provincia de Buenos Aires, Argentina 2 Cátedra de Microbiología y Laboratorio de Diagnóstico ...

dna barcoding based on a standardized region of 648 base pairs of mitochondrial dnasequences from cytochrome c oxidase 1 (cox1) is proposed for animal species identification.recent studies suggested that dna barcoding has been effective for identifying 94% of birdspecies. the proposed threshold of 10 times the average intraspecific variation could be used forthe identification and delimitation ...

We describe the deleterious effects of using an antimony potassium tartrate emetic to obtain diet samples from birds, and compare information obtained from regurgitated samples versus fecal samples in describing diets of autumn migrants. We also examined dose effectiveness in captive Dark-eyed Juncos (Junco hyemalis) subjected to the same emetic technique used in the field. Over 70% of migrants...

reprintInfo.asp. DOI: 10.1525/cond.2010.090186 Resumen. En el futuro, deseamos usar análisis de isótopos estables de plumas de vuelo para entender el comportamiento alimenticio de aves marinas pelágicas como Pterodroma sandwichensis y Puffinus auricularis newelli. El análisis de las rémiges es particularmente informativo porque generalmente se conoce la secuencia y el momento en que ocurre la m...

Durante invierno 2001 y verano 2002 se realizaron censos de aves en Capulalpam Méndez, Municipio Ixtlán Juárez, Sierra Oaxaca, México, localidad dentro Área Importancia para la Conservación las Aves 220 México. Se detectaron 132 especies entre los 2200 2800 msnm, cuales 16.7% son endémicas, semiendemicas o cuasiendemicas a Con el fin aportar más información sobre 15 presentes esta AICA comentan...

Radio-telemetry is often used to track birds, and several investigators have examined the possible effects of radio-transmitters on birds. One approach to this question is to determine if transmitters induce physiological stress. Using hematological indicators of stress (heterophil-lymphocyte [H/L] ratios), studies of captive birds have revealed no evidence that radio-transmitters cause stress....

Avifaunas de dos bosques secos del norte Oaxaca, MéxicoSe realizaron inventarios avifaunísticos en el sitios la región Cañada Valle Tehuacán. Se observaron 142 especies aves, encontrándose cerca 100 cada sitio. encontró un número sorprendente (37) que representan poblaciones aisladas interior restringidas por una u otra vertiente costera. Además, proporciones similares fueron exclusivamente cos...

We lured White Ibises (Eudocimus albus) to trap sites with decoy plastic flamingos and captured them with a rocket net or mist nets. Our ability to attract ibises to a site (and consequently our capture success) was affected by vegetation height and water depth but not by decoy numbers or their arrangement. Both the rocket net (37 ibises) and mist nets (97 ibises) caught birds. The number of bi...