Zobrazeno 1 - 10
of 83
pro vyhledávání: '"John H Graham"'
Publikováno v:
PLoS ONE, Vol 14, Iss 8, p e0214266 (2019)
Drought affects avian communities in complex ways. We used our own and citizen science-generated reproductive data acquired through The Cornell Lab of Ornithology's NestWatch Program, combined with drought and vegetation indices obtained from governm
Externí odkaz:
https://doaj.org/article/59f00f88e58248f3ab036e0adbd84565
Publikováno v:
PLoS ONE, Vol 7, Iss 7, p e41840 (2012)
Developmental instability of shelled gastropods is measured as deviations from a perfect equiangular (logarithmic) spiral. We studied six species of gastropods at 'Evolution Canyons I and II' in Carmel and the Galilee Mountains, Israel, respectively.
Externí odkaz:
https://doaj.org/article/2765c66d6ed142fe8e27e42ba6cf4ff0
Publikováno v:
PLoS ONE, Vol 7, Iss 11, p e48964 (2012)
Distributed robustness is thought to influence the buffering of random phenotypic variation through the scale-free topology of gene regulatory, metabolic, and protein-protein interaction networks. If this hypothesis is true, then the phenotypic respo
Externí odkaz:
https://doaj.org/article/b9ebe38f705d4ffaa4dd9ad8a85e70ed
Autor:
Shmuel Raz, John H Graham, Ayelet Cohen, Benjamin L de Bivort, Isabella Grishkan, Eviatar Nevo
Publikováno v:
PLoS ONE, Vol 7, Iss 4, p e34689 (2012)
Fluctuating asymmetry is a contentious indicator of stress in populations of animals and plants. Nevertheless, it is a measure of developmental noise, typically obtained by measuring asymmetry across an individual organism's left-right axis of symmet
Externí odkaz:
https://doaj.org/article/3568a60792ef4ec9a977b1e412a0e440
Autor:
John H. Graham, Rachel Christopher
Publikováno v:
Symmetry, Vol 15, Iss 6, p 1198 (2023)
The simple leaves of deciduous forest trees in temperate zones have more irregular and asymmetric shapes than comparable non-deciduous leaves of trees in the tropics and subtropics. These shapes manifest as the irregular lobes and sinuses of temperat
Externí odkaz:
https://doaj.org/article/7c5aeb5cf7b341f285510e7ca4a23edd
Autor:
John H. Graham
Publikováno v:
Symmetry, Vol 13, Iss 7, p 1204 (2021)
Phenotypic variation arises from genetic and environmental variation, as well as random aspects of development. The genetic (nature) and environmental (nurture) components of this variation have been appreciated since at least 1900. The random develo
Externí odkaz:
https://doaj.org/article/50d312a920d244b3abc641ccad9a1f6f
Autor:
Christopher, John H. Graham, Rachel
Publikováno v:
Symmetry; Volume 15; Issue 6; Pages: 1198
The simple leaves of deciduous forest trees in temperate zones have more irregular and asymmetric shapes than comparable non-deciduous leaves of trees in the tropics and subtropics. These shapes manifest as the irregular lobes and sinuses of temperat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=multidiscipl::9f113dc1d5f8f25fb920a5e880fcff89
Autor:
John H. Graham
Publikováno v:
Symmetry, Vol 13, Iss 1, p 9 (2020)
Best practices in studies of developmental instability, as measured by fluctuating asymmetry, have developed over the past 60 years. Unfortunately, they are haphazardly applied in many of the papers submitted for review. Most often, research designs
Externí odkaz:
https://doaj.org/article/e37fd7b29a6c43e8bc795f9ef69ddde7
Fluctuating Asymmetry of Plant Leaves: Batch Processing with LAMINA and Continuous Symmetry Measures
Publikováno v:
Symmetry, Vol 7, Iss 1, Pp 255-268 (2015)
Unlike landmark methods for estimating object asymmetry, continuous symmetry measures (CSM) can be used to measure the symmetry distance (ds) of inconsistent objects, such as plant leaves. Inconsistent objects have no homologous landmarks, no consist
Externí odkaz:
https://doaj.org/article/55f47c6ddd074b5b826a656a610f31f1
Publikováno v:
Symmetry, Vol 2, Iss 2, Pp 466-540 (2010)
Fluctuating asymmetry consists of random deviations from perfect symmetry in populations of organisms. It is a measure of developmental noise, which reflects a population’s average state of adaptation and coadaptation. Moreover, it increases under
Externí odkaz:
https://doaj.org/article/5a887d6ef2534a718d31eeddf1093ae5