Results 11 to 20 of about 17,891 (251)

Functional Morphology of the Scaphoid in Extant African Apes, Humans and Fossil Hominins. [PDF]

open access: yesAm J Biol Anthropol
ABSTRACT Objectives The morphology of the hominoid scaphoid has played a key role in functional and evolutionary hypotheses related to the emergence of hominin bipedalism and tool use. However, the scaphoid's complex morphology is challenging to comparatively analyze via traditional 2D linear measurements.
Steer NG   +5 more
europepmc   +2 more sources

An outsider on the Antarctic Peninsula: A new record of the non-native moth Plodia interpunctella (Lepidoptera: Pyralidae). [PDF]

open access: yesEcol Evol
This text reports the discovery of the microlepidopteran Plodia interpunctella at the Chilean Yelcho scientific station on Doumer Island, near the west coast of the Antarctic Peninsula. Plodia interpunctella is a global pest known for surviving in stored food for extended periods.
Benitez HA   +12 more
europepmc   +2 more sources

3D pollination biology using micro‐computed tomography and geometric morphometrics in Theobroma cacao

open access: yesApplications in Plant Sciences, Volume 11, Issue 5, September-October 2023., 2023
Abstract Premise Imaging technologies that capture three‐dimensional (3D) variation in floral morphology at micro‐ and nano‐resolutions are increasingly accessible. In herkogamous flowers, such as those of Theobroma cacao, structural barriers between anthers and stigmas represent bottlenecks that restrict pollinator size and access to reproductive ...
Katherine A. Wolcott   +4 more
wiley   +1 more source

Trilobites of Thailand's Cambrian–Ordovician Tarutao Group and their geological setting

open access: yesPapers in Palaeontology, Volume 9, Issue 5, September/October 2023., 2023
Abstract Tuff‐bearing upper Cambrian to lowermost Ordovician strata on Ko Tarutao island, Satun province, southernmost peninsular Thailand, contain a rich trilobite fauna relevant to global biostratigraphy, peri‐Gondwanan palaeogeography and shifting evolutionary mode.
Shelly J. Wernette   +3 more
wiley   +1 more source

Morfometria e desmatamento da microbacia do rio Pirarara, Cacoal, Rondônia

open access: yesResearch, Society and Development, 2021
As características fisiográficas da paisagem são informações essenciais para o planejamento e gestão dos recursos hídricos nas microbacias. Objetivou-se analisar a morfometria e a dinâmica da cobertura do solo na microbacia do rio Pirarara, Amazônia ...
Dhielen Maiza Mendes   +5 more
semanticscholar   +1 more source

Skeletal age during hurricane impacts fluctuating asymmetry in Cayo Santiago rhesus macaques

open access: yesEcology and Evolution, Volume 13, Issue 8, August 2023., 2023
Fluctuating asymmetry (FA), or random deviations from symmetry, can be used as a proxy for developmental instability, and anthropogenic and natural disruptions have been associated with increased levels of FA. In this study, we investigate the effect of demographic variables (age, sex, and decade of birth) and hurricane experience on FA in a model ...
Ashly N. Romero   +3 more
wiley   +1 more source

Contribución al conocimiento de la familia Neriidae (Diptera) en Chiapas, México: nuevos registros y uso potencial de la morfometría geométrica

open access: yesRevista de la Sociedad Entomológica Argentina, 2022
Insects of the family Neriidae deposited in the Insect Collection of “El Colegio de la Frontera Sur” (Tapachula, México) were revised. Taxonomic revision of 322 specimens provided distributional information about four genera and six species for the state
E. R. Chamé-Vázquez   +2 more
semanticscholar   +1 more source

MORFOMETRIA E DIAGNÓSTICO FÍSICO CONSERVACIONISTA (DFC) EM 19 SUB-BACIAS DA BACIA HIDROGRÁFICA APODI MOSSORÓ.

open access: yesRevista Brasileira de Geografia Física, 2022
A bacia hidrográfica do rio Apodi-Mossoró, inserida na mesorregião oeste do estado do Rio Grande do Norte, ocupa uma área de 14.276 km² e seu desenvolvimento econômico é baseado na exploração de recursos naturais.
Albergma Estevão de Queiroz Magalhães Cavalcante   +2 more
semanticscholar   +1 more source

Constructing a multiple‐part morphospace using a multiblock method

open access: yesMethods in Ecology and Evolution, Volume 14, Issue 1, Page 65-76, January 2023., 2023
Abstract Popular current methods for quantifying variation in biological shape are well‐suited to analyses of isolated parts (e.g. the same bone from the skeletons of many individuals). An analytical challenge exists for quantifying variation between the shapes of multiple‐part objects where each part has a different position, rotation or scale (e.g ...
Daniel B. Thomas   +5 more
wiley   +1 more source

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