Academic literature on the topic 'Flightless birds'

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Journal articles on the topic "Flightless birds"

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Maderspacher, Florian. "Flightless birds." Current Biology 32, no. 20 (October 2022): R1155—R1162. http://dx.doi.org/10.1016/j.cub.2022.09.039.

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Wright, Natalie A., David W. Steadman, and Christopher C. Witt. "Predictable evolution toward flightlessness in volant island birds." Proceedings of the National Academy of Sciences 113, no. 17 (April 11, 2016): 4765–70. http://dx.doi.org/10.1073/pnas.1522931113.

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Birds are prolific colonists of islands, where they readily evolve distinct forms. Identifying predictable, directional patterns of evolutionary change in island birds, however, has proved challenging. The “island rule” predicts that island species evolve toward intermediate sizes, but its general applicability to birds is questionable. However, convergent evolution has clearly occurred in the island bird lineages that have undergone transitions to secondary flightlessness, a process involving drastic reduction of the flight muscles and enlargement of the hindlimbs. Here, we investigated whether volant island bird populations tend to change shape in a way that converges subtly on the flightless form. We found that island bird species have evolved smaller flight muscles than their continental relatives. Furthermore, in 366 populations of Caribbean and Pacific birds, smaller flight muscles and longer legs evolved in response to increasing insularity and, strikingly, the scarcity of avian and mammalian predators. On smaller islands with fewer predators, birds exhibited shifts in investment from forelimbs to hindlimbs that were qualitatively similar to anatomical rearrangements observed in flightless birds. These findings suggest that island bird populations tend to evolve on a trajectory toward flightlessness, even if most remain volant. This pattern was consistent across nine families and four orders that vary in lifestyle, foraging behavior, flight style, and body size. These predictable shifts in avian morphology may reduce the physical capacity for escape via flight and diminish the potential for small-island taxa to diversify via dispersal.
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Hume, Julian P., and David Martill. "Repeated evolution of flightlessness in Dryolimnas rails (Aves: Rallidae) after extinction and recolonization on Aldabra." Zoological Journal of the Linnean Society 186, no. 3 (May 8, 2019): 666–72. http://dx.doi.org/10.1093/zoolinnean/zlz018.

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AbstractThe Aldabra rail, Dryolimnas cuvieri subsp. aldabranus, endemic to the Aldabra Atoll, Seychelles, is the last surviving flightless bird in the Indian Ocean. Aldabra has undergone at least one major, total inundation event during an Upper Pleistocene (Tarantian age) sea-level high-stand, resulting in the loss of all terrestrial fauna. A flightless Dryolimnas has been identified from two temporally separated Aldabran fossil localities, deposited before and after the inundation event, providing irrefutable evidence that a member of Rallidae colonized the atoll, most likely from Madagascar, and became flightless independently on each occasion. Fossil evidence presented here is unique for Rallidae and epitomizes the ability of birds from this clade to successfully colonize isolated islands and evolve flightlessness on multiple occasions.
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Johnston, Peter, and Kieren J. Mitchell. "Contrasting Patterns of Sensory Adaptation in Living and Extinct Flightless Birds." Diversity 13, no. 11 (October 26, 2021): 538. http://dx.doi.org/10.3390/d13110538.

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Avian cranial anatomy is constrained by the competing (or complementary) requirements and costs of various facial, muscular, sensory, and central neural structures. However, these constraints may operate differently in flighted versus flightless birds. We investigated cranial sense organ morphology in four lineages of flightless birds: kiwi (Apteryx), the Kakapo (Strigops habroptilus), and the extinct moa (Dinornithiformes) from New Zealand; and the extinct elephant birds from Madagascar (Aepyornithidae). Scleral ring and eye measurements suggest that the Upland Moa (Megalapteryx didinus) was diurnal, while measurements for the Kakapo are consistent with nocturnality. Kiwi are olfactory specialists, though here we postulate that retronasal olfaction is the dominant olfactory route in this lineage. We suggest that the Upland Moa and aepyornithids were also olfactory specialists; the former additionally displaying prominent bill tip sensory organs implicated in mechanoreception. Finally, the relative size of the endosseous cochlear duct revealed that the Upland Moa had a well-developed hearing sensitivity range, while the sensitivity of the kiwi, Kakapo, and aepyornithids was diminished. Together, our results reveal contrasting sensory strategies among extant and extinct flightless birds. More detailed characterisation of sensory capacities and cranial anatomy in extant birds may refine our ability to make accurate inferences about the sensory capacities of fossil taxa.
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Feneck, Eleanor M., Sorrel R. B. Bickley, and Malcolm P. O. Logan. "Embryonic Development of the Avian Sternum and Its Morphological Adaptations for Optimizing Locomotion." Diversity 13, no. 10 (September 29, 2021): 481. http://dx.doi.org/10.3390/d13100481.

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The sternum is part of the forelimb appendicular skeleton found in most terrestrial vertebrates and has become adapted across tetrapods for distinctive modes of locomotion. We review the regulatory mechanisms underlying sternum and forelimb development and discuss the possible gene expression modulation that could be responsible for the sternal adaptations and associated reduction in the forelimb programme found in flightless birds. In three phylogenetically divergent vertebrate lineages that all undertake powered flight, a ventral extension of the sternum, named the keel, has evolved independently, most strikingly in volant birds. In flightless birds, however, the sternal keel is absent, and the sternum is flattened. We review studies in a variety of species that have analysed adaptations in sterna morphology that are related to the animal’s mode of locomotion on land, in the sky and in water.
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Stokoe, William C. "On Cats’ Eyes, Flightless Birds & “Home Signs”." Sign Language Studies 1087, no. 1 (1995): 175–84. http://dx.doi.org/10.1353/sls.1995.0022.

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Kavanau, J. Lee. "Secondarily flightless birds or Cretaceous non-avian theropods?" Medical Hypotheses 74, no. 2 (February 2010): 275–76. http://dx.doi.org/10.1016/j.mehy.2009.09.015.

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Agnolin, Federico L. "Reappraisal on the Phylogenetic Relationships of the Enigmatic Flightless Bird (Brontornis burmeisteri) Moreno and Mercerat, 1891." Diversity 13, no. 2 (February 20, 2021): 90. http://dx.doi.org/10.3390/d13020090.

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The fossil record of birds in South America is still very patchy. One of the most remarkable birds found in Miocene deposits from Patagonia is Brontornis burmeisteri Moreno and Mercerat, 1891. This giant flightless bird is known by multiple incomplete specimens that represent a few portions of the skeleton, mainly hindlimb bones. Since the XIX century, Brontornis was considered as belonging to or closely related to phorusrhacoid birds. In contrast to previous work, by the end of 2000 decade it was proposed that Brontornis belongs to Galloanserae. This proposal was recently contested based on a large dataset including both phorusrhacoids and galloanserine birds, that concluded Brontornis was nested among cariamiform birds, and probably belonged to phorusrhacoids. The aim of the present contribution is to re-evaluate the phylogenetic affinities of Brontornis. Based on modified previous datasets, it is concluded that Brontornis does belong to Galloanserae, and that it represents a member of a largely unknown radiation of giant graviportal birds from South America.
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Hambler, C., J. Newing, and K. Hambler. "Population monitoring for the flightless rail Dryolimnas cuvieri aldabranus." Bird Conservation International 3, no. 4 (December 1993): 307–18. http://dx.doi.org/10.1017/s0959270900002586.

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SummaryThe last flightless bird of the western Indian Ocean, Dryolimnas cuvieri aldabranus survives only on Aldabra. Its population numbered some 8,000 in 1973–1976. Surveys suggest numbers remained roughly constant between 1968 and 1988 (with a fluctuation of only 4% in responses to call playback between 1983 and 1988), but distribution continued to contract. Longevity can reach over 8.5 years (but is probably lower on average), and some birds remain within 100 m of the site of ringing for at least five years. Feral predators remain a threat, and captive populations are recommended. The monitoring procedure may have value for other Gruiformes.
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Canoville, Aurore, Anusuya Chinsamy, and Delphine Angst. "New Comparative Data on the Long Bone Microstructure of Large Extant and Extinct Flightless Birds." Diversity 14, no. 4 (April 15, 2022): 298. http://dx.doi.org/10.3390/d14040298.

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Here, we investigate whether bone microanatomy can be used to infer the locomotion mode (cursorial vs. graviportal) of large terrestrial birds. We also reexamine, or describe for the first time, the bone histology of several large extant and extinct flightless birds to (i) document the histovariability between skeletal elements of the hindlimb; (ii) improve our knowledge of the histological diversity of large flightless birds; (iii) and reassess previous hypotheses pertaining to the growth strategies of modern palaeognaths. Our results show that large extinct terrestrial birds, inferred as graviportal based on hindlimb proportions, also have thicker diaphyseal cortices and/or more bony trabeculae in the medullary region than cursorial birds. We also report for the first time the occurrence of growth marks (not associated with an outer circumferential layer-OCL) in the cortices of several extant ratites. These observations support earlier hypotheses that flexible growth patterns can be present in birds when selection pressures for rapid growth within a single year are absent. We also document the occurrence of an OCL in several skeletally mature ratites. Here, the high incidence of pathologies among the modern species is attributed to the fact that these individuals were probably long-lived zoo specimens.
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Dissertations / Theses on the topic "Flightless birds"

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Chapman, Carin. "The Isle of Flightless Birds: A Concise History." ScholarWorks@UNO, 2014. http://scholarworks.uno.edu/td/1898.

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"The Allometry of Giant Flightless Birds." Diss., 2007. http://hdl.handle.net/10161/200.

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Dickison, Michael R. "The Allometry of Giant Flightless Birds." Diss., 2007. http://dukespace.lib.duke.edu/dspace/bitstream/10161/200/1/D_Dickison_Michael_R_a_052007.pdf.

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Books on the topic "Flightless birds"

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Baskin-Salzberg, Anita. Flightless birds. New York: F. Watts, 1993.

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Barrett, Norman S. Flightless birds. New York: F. Watts, 1991.

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Flightless birds. Westport, Conn: Greenwood Press, 2006.

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Arnold, Caroline. Ostriches and other flightless birds. Minneapolis: Carolrhoda Books, 1990.

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The penguin: The fastest flightless birds. London: Boxtree, 1991.

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Fast and flightless. Ann Arbor, Michigan: Cherry Lake Publishing, 2016.

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Daniel, Moreton, ed. This bird can't fly. New York: Scholastic, 1998.

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The flight of the Dodo. New York: Little, Brown, 2005.

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Nagelhout, Ryan. Awesome ostriches. New York, NY: Gareth Stevens Publishing, 2014.

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Evolution of flightlessness in rails (Gruiformes, Rallidae): Phylogenetic, ecomorphological, and ontogenetic perspectives. Washington, D.C: American Ornithologists' Union, 2003.

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Book chapters on the topic "Flightless birds"

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Ward, Lisa, and Linda Henry. "The behavioural biology of flightless birds." In The Behavioural Biology of Zoo Animals, 133–51. Boca Raton: CRC Press, 2022. http://dx.doi.org/10.1201/9781003208471-13.

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Tulloch, G., and C. J. C. Phillips. "The Ethics of Farming Flightless Birds." In Animal Welfare, 1–11. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-19297-5_1.

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Buffetaut, Eric, and Delphine Angst. "Stratigraphic Distribution of Large Flightless Birds in the Palaeogene of Europe." In Springer Geology, 1005–8. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-04364-7_190.

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Cadena, Carlos Daniel, and Laura N. Céspedes. "Origin of Elevational Replacements in a Clade of Nearly Flightless Birds: Most Diversity in Tropical Mountains Accumulates via Secondary Contact Following Allopatric Speciation." In Neotropical Diversification: Patterns and Processes, 635–59. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-31167-4_23.

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"Flightless Birds." In Encyclopedia of the UN Sustainable Development Goals, 419. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-319-98536-7_300063.

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"THE FLIGHTLESS BIRDS." In How to Love Everyone and Almost Get Away with It, 55. University of Massachusetts Press, 2021. http://dx.doi.org/10.2307/j.ctv1h9dgb9.52.

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Pathak, Nityanand. "The Ratites (Flightless Birds)." In Avian Nutrition, 186–98. CRC Press, 2020. http://dx.doi.org/10.1201/9781003141846-12.

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"22. Flightless Birds and Fossil Sites." In Hawaiian Natural History, Ecology, and Evolution, 277–88. University of Hawaii Press, 2017. http://dx.doi.org/10.1515/9780824842437-026.

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"5. Big Chicks: The Flightless Birds." In Riddle of the Feathered Dragons, 190–229. Yale University Press, 2017. http://dx.doi.org/10.12987/9780300165692-007.

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Angst, Delphine, and Eric Buffetaut. "General Introduction." In Palaeobiology of Extinct Giant Flightless Birds, 1–37. Elsevier, 2017. http://dx.doi.org/10.1016/b978-1-78548-136-9.50001-5.

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Conference papers on the topic "Flightless birds"

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Gheraibia, Youcef, Abdelouahab Moussaoui, Luis S. Azevedo, David Parker, Yiannis Papadopoulos, and Martin Walker. "Can aquatic flightless birds allocate Automotive Safety requirements?" In 2015 IEEE Seventh International Conference on Intelligent Computing and Information Systems (ICICIS). IEEE, 2015. http://dx.doi.org/10.1109/intelcis.2015.7397214.

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Widholm, Scott, and Mariappan Jawaharlal. "Analysis of Cassowary Casques for Shock Absorption." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-65120.

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The cassowary, a large flightless bird native to Australia, is best known for the helmet-like casque on its head. This casque looks like a large bony fin, but actually is a hollow structure made of keratin. Because the cassowary uses this casque to ram trees to knock down fruit, it is thought that the structure might provide much of the shock-absorbing qualities needed to keep the head safe. This analysis is a first look into this possibility.
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