MYCOTIC FLORA IN THE LOWER DIGESTIVE TRACT OF FERAL PIGEONS (Columba livia) IN THE EL PASO, TEXAS AREA

Ramírez, Roxana Olvera; Robertstad, Gordon W.; Hutchinson, Lea R.; Chávez, Juan francisco Hernández

doi:10.7589/0090-3558-12.1.83

Cited by 18 publications

(11 citation statements)

References 6 publications

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“…27 Few researchers have isolated fungal species from pigeon cloacas, and for this reason some of the yeast isolates in our study cannot be compared with previous studies in pigeons. Ramirez et al 20 isolated fourteen fungal species from the ilio-cecal-colic conjunction of feral pigeons (including C. albicans), similarly to our study. In 2005, Rosario et al 21 evaluated the prevalence of different yeasts (Cryptococcus genus) in samples from pigeon cloacas.…”

Section: Discussionsupporting

confidence: 82%

Pigeons and their droppings as reservoirs of Candida and other zoonotic yeasts

Medina

Fuentes

Arteaga

et al. 2017

Revista Iberoamericana de Micología

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Section: Discussionsupporting

confidence: 82%

Pigeons and their droppings as reservoirs of Candida and other zoonotic yeasts

Medina

Fuentes

Arteaga

et al. 2017

Revista Iberoamericana de Micología

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“…Up to fourteen fungal species have been also described in the lower intestinal tract of these birds (Ramirez et al. ). The presence of fungi on the eggshells of early incubated eggs might be explained under the hypothesis of vertical transmission.…”

Section: Discussionmentioning

confidence: 99%

“…This includes Cryptococcus laurentii, Cryptococcus uniguttulatus, Debaryomyces hansenii, and Rhodotorula rubra, which have been identified in feral pigeon cloaca (Littman and Walter 1967;Mattsson et al 1999). Up to fourteen fungal species have been also described in the lower intestinal tract of these birds (Ramirez et al 1976). The presence of fungi on the eggshells of early incubated eggs might be explained under the hypothesis of vertical transmission.…”

Section: Shifts In Microbial Communities Through Incubationmentioning

confidence: 99%

Dynamics of bacterial and fungal communities associated with eggshells during incubation

Grizard

Dini‐Andreote

Tieleman

et al. 2014

Ecology and Evolution

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Microorganisms are closely associated with eggs and may play a determinant role in embryo survival. Yet, the majority of studies focusing on this association relied on culture-based methodology, eventually leading to a skewed assessment of microbial communities. By targeting the 16S rRNA gene and internal transcribed spacer (ITS) region, we, respectively, described bacterial and fungal communities on eggshells of the homing pigeon Columba livia. We explored their structure, abundance, and composition. Firstly, we showed that sampling technique affected the outcome of the results. While broadly used, the egg swabbing procedure led to a lower DNA extraction efficiency and provided different profiles of bacterial communities than those based on crushed eggshell pieces. Secondly, we observed shifts in bacterial and fungal communities during incubation. At late incubation, bacterial communities showed a reduction in diversity, while their abundance increased, possibly due to the competitive advantage of some species. When compared to their bacterial counterparts, fungal communities also decreased in diversity at late incubation. In that case, however, the decline was associated with a diminution of their overall abundance. Conclusively, our results showed that although incubation might inhibit microbial growth when compared to unincubated eggs, we observed the selective growth of specific bacterial species during incubation. Moreover, we showed that fungi are a substantial component of the microbial communities associated with eggshells and require further investigations in avian ecology. Identifying the functional roles of these microorganisms is likely to provide news insights into the evolutionary strategies that control embryo survival.We aimed to describe the dynamics of bacterial and fungal communities on homing pigeon eggshell surfaces. We investigated these communities at early and late incubation stages.

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“…It may be surmised that the natural niche involves warm-blooded animals. Indeed the species has been reported to occur asymptomatically in the lungs of rodents [298] and in the lower digestive tract of feral pigeons [299]. Also the lungs of cold-blooded animals proved to be infected [300].…”

Section: Animal Casesmentioning

confidence: 98%