Case study: Beak deformity of a Monticola solitarius individual in Gavdos, Crete
Апстракт
Beak deformities in the wild are a rare sight as the deformity reduces the
individual’s ability to feed, maintain the plumage and attract mates while
increasing the susceptibility to infections, thus significantly impacting the
individual’s fitness. The etiology of a beak abnormality can be caused by
anatomical maldevelopment, and/or a keratin disorder caused by nutritional
deficiencies, infections (bacterial, viral, fungal, or parasitic) or exposure to
environmental toxins, primarily agrochemicals. We report here the case of an
extreme, debilitating crossbill deformity of a male blue rock thrush trapped on the
island of Gavdos during a bird ringing survey in May 2022. The individual was
estimated as being at least one year old based on its plumage and in a good body
condition, with normally developed and maintained feathers. The survival of this
individual, seemingly incapable of using its beak to manipulate food items is
difficult to explain, especially since Gavdos does ...not provide soft easily
manipulated food apart from olives and some berries and figs. The only other food
that could provide sustenance on Gavdos are snails and possibly, bees and other
insects. However, the extent of the deformity would severely impede preying on a
hard-bodied prey such as snails or beetles, with preying on moving venomous
prey that needs to be first stunned such as bees even less likely. The survival of
this individual demonstrates a fascinating adaptive response to environmental
conditions through problem solving, as well as the plasticity of the dietary niche
capable of sustaining an individual.
Кључне речи:
beak deformity / plasticity / Monticola solitariusИзвор:
Abstracts of the International Congress on the Zoogeography and Ecology of Greece and Adjacent Regions, 15th ICZEGAR, 12-15 October 2022, Mytilene, Lesvos, Greece. Hellenic Zoological Society, 123 pages., 2022Издавач:
- Hellenic Zoological Society
Институција/група
Institut za multidisciplinarna istraživanjaTY - CONF AU - Perodaskalaki, Anastasia AU - Raković, Marko AU - Skorić, Stefan AU - Ivović, Milica PY - 2022 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/1697 AB - Beak deformities in the wild are a rare sight as the deformity reduces the individual’s ability to feed, maintain the plumage and attract mates while increasing the susceptibility to infections, thus significantly impacting the individual’s fitness. The etiology of a beak abnormality can be caused by anatomical maldevelopment, and/or a keratin disorder caused by nutritional deficiencies, infections (bacterial, viral, fungal, or parasitic) or exposure to environmental toxins, primarily agrochemicals. We report here the case of an extreme, debilitating crossbill deformity of a male blue rock thrush trapped on the island of Gavdos during a bird ringing survey in May 2022. The individual was estimated as being at least one year old based on its plumage and in a good body condition, with normally developed and maintained feathers. The survival of this individual, seemingly incapable of using its beak to manipulate food items is difficult to explain, especially since Gavdos does not provide soft easily manipulated food apart from olives and some berries and figs. The only other food that could provide sustenance on Gavdos are snails and possibly, bees and other insects. However, the extent of the deformity would severely impede preying on a hard-bodied prey such as snails or beetles, with preying on moving venomous prey that needs to be first stunned such as bees even less likely. The survival of this individual demonstrates a fascinating adaptive response to environmental conditions through problem solving, as well as the plasticity of the dietary niche capable of sustaining an individual. PB - Hellenic Zoological Society C3 - Abstracts of the International Congress on the Zoogeography and Ecology of Greece and Adjacent Regions, 15th ICZEGAR, 12-15 October 2022, Mytilene, Lesvos, Greece. Hellenic Zoological Society, 123 pages. T1 - Case study: Beak deformity of a Monticola solitarius individual in Gavdos, Crete UR - https://hdl.handle.net/21.15107/rcub_rimsi_1697 ER -
@conference{ author = "Perodaskalaki, Anastasia and Raković, Marko and Skorić, Stefan and Ivović, Milica", year = "2022", abstract = "Beak deformities in the wild are a rare sight as the deformity reduces the individual’s ability to feed, maintain the plumage and attract mates while increasing the susceptibility to infections, thus significantly impacting the individual’s fitness. The etiology of a beak abnormality can be caused by anatomical maldevelopment, and/or a keratin disorder caused by nutritional deficiencies, infections (bacterial, viral, fungal, or parasitic) or exposure to environmental toxins, primarily agrochemicals. We report here the case of an extreme, debilitating crossbill deformity of a male blue rock thrush trapped on the island of Gavdos during a bird ringing survey in May 2022. The individual was estimated as being at least one year old based on its plumage and in a good body condition, with normally developed and maintained feathers. The survival of this individual, seemingly incapable of using its beak to manipulate food items is difficult to explain, especially since Gavdos does not provide soft easily manipulated food apart from olives and some berries and figs. The only other food that could provide sustenance on Gavdos are snails and possibly, bees and other insects. However, the extent of the deformity would severely impede preying on a hard-bodied prey such as snails or beetles, with preying on moving venomous prey that needs to be first stunned such as bees even less likely. The survival of this individual demonstrates a fascinating adaptive response to environmental conditions through problem solving, as well as the plasticity of the dietary niche capable of sustaining an individual.", publisher = "Hellenic Zoological Society", journal = "Abstracts of the International Congress on the Zoogeography and Ecology of Greece and Adjacent Regions, 15th ICZEGAR, 12-15 October 2022, Mytilene, Lesvos, Greece. Hellenic Zoological Society, 123 pages.", title = "Case study: Beak deformity of a Monticola solitarius individual in Gavdos, Crete", url = "https://hdl.handle.net/21.15107/rcub_rimsi_1697" }
Perodaskalaki, A., Raković, M., Skorić, S.,& Ivović, M.. (2022). Case study: Beak deformity of a Monticola solitarius individual in Gavdos, Crete. in Abstracts of the International Congress on the Zoogeography and Ecology of Greece and Adjacent Regions, 15th ICZEGAR, 12-15 October 2022, Mytilene, Lesvos, Greece. Hellenic Zoological Society, 123 pages. Hellenic Zoological Society.. https://hdl.handle.net/21.15107/rcub_rimsi_1697
Perodaskalaki A, Raković M, Skorić S, Ivović M. Case study: Beak deformity of a Monticola solitarius individual in Gavdos, Crete. in Abstracts of the International Congress on the Zoogeography and Ecology of Greece and Adjacent Regions, 15th ICZEGAR, 12-15 October 2022, Mytilene, Lesvos, Greece. Hellenic Zoological Society, 123 pages.. 2022;. https://hdl.handle.net/21.15107/rcub_rimsi_1697 .
Perodaskalaki, Anastasia, Raković, Marko, Skorić, Stefan, Ivović, Milica, "Case study: Beak deformity of a Monticola solitarius individual in Gavdos, Crete" in Abstracts of the International Congress on the Zoogeography and Ecology of Greece and Adjacent Regions, 15th ICZEGAR, 12-15 October 2022, Mytilene, Lesvos, Greece. Hellenic Zoological Society, 123 pages. (2022), https://hdl.handle.net/21.15107/rcub_rimsi_1697 .