气候变化领域集成服务门户(CCPortal): Avian egg shape: Form, function, and evolution

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DOI	10.1126/science.aaj1945
	Avian egg shape: Form, function, and evolution
	Stoddard M.C.; Yong E.H.; Akkaynak D.; Sheard C.; Tobias J.A.; Mahadevan L.
发表日期	2017
ISSN	0036-8075
起始页码	1249
结束页码	1254
卷号	356 期号:6344
英文摘要	Avian egg shape is generally explained as an adaptation to life history, yet we currently lack a global synthesis of how egg-shape differences arise and evolve. Here, we apply morphometric, mechanistic, and macroevolutionary analyses to the egg shapes of 1400 bird species. We characterize egg-shape diversity in terms of two biologically relevant variables, asymmetry and ellipticity, allowing us to quantify the observed morphologies in a two-dimensional morphospace.We then propose a simple mechanical model that explains the observed egg-shape diversity based on geometric and material properties of the egg membrane. Finally, using phylogenetic models, we show that egg shape correlates with flight ability on broad taxonomic scales, suggesting that adaptations for flight may have been critical drivers of egg-shape variation in birds. © The Authors, some rights reserved.
英文关键词	adaptation; asymmetry; bird; egg; evolution; life history; morphology; morphometry; phylogenetics; anatomical variation; Article; biophysics; bird; egg; evolution; flight; membrane; model; morphology; morphometry; nonhuman; parameters; priority journal; taxonomy; volume; adaptation; anatomy and histology; animal; biodiversity; biological model; bird; cytology; evolution; flying; ovum; phylogeny; physiology; Aves; Adaptation, Physiological; Animals; Biodiversity; Biological Evolution; Biophysical Phenomena; Birds; Flight, Animal; Models, Biological; Ovum; Phylogeny
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/245615
作者单位	Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ 08544, United States; Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore; Leon S. Charney School of Marine Sciences, Department of Marine Technologies, University of Haifa, Israel; Interuniversity Institute of Marine Sciences, Eilat, Israel; Department of Archaeology and Anthropology, University of Bristol, 43 Woodland Road, Bristol, BS8 1UU, United Kingdom; Department of Life Sciences, Imperial College London, Silwood Park, Buckhurst Road, Ascot, SL5 7PY, United Kingdom; Departments of Organismic and Evolutionary Biology, Physics, Paulson School of Engineering and Applied Sciences, Kavli Institute for Bionano Science and Technology, Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, MA 02138, United States
推荐引用方式 GB/T 7714	Stoddard M.C.,Yong E.H.,Akkaynak D.,et al. Avian egg shape: Form, function, and evolution[J],2017,356(6344).
APA	Stoddard M.C.,Yong E.H.,Akkaynak D.,Sheard C.,Tobias J.A.,&Mahadevan L..(2017).Avian egg shape: Form, function, and evolution.Science,356(6344).
MLA	Stoddard M.C.,et al."Avian egg shape: Form, function, and evolution".Science 356.6344(2017).