FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2020608907> ?p ?o ?g. }

• W2020608907 endingPage "50" @default.
• W2020608907 startingPage "39" @default.
• W2020608907 abstract "Abstract An analysis of polychaete life‐styles and morpho‐functional adaptations, in relation to their metameric organization, is presented with the aim of summarising the main hypotheses thus far proposed as for their ancestral form, and of discussing the evolutionary implications of the metameric design. The metameric organization, which seems to have appeared early within the proto‐stome line, have reached a high diversification in marine polychaetes among the Annelida. This high diversification of ‘annelid design’ in polychaetes is probably linked to their ancient origin, their early rapid adaptive radiation, and their morphological and physiological adaptability to a great number of habitats. Primary heteronomy, i.e. the presence of larval segments in polychaetes, as an adaptation to pelagic development, as well as secondary heteronomy, i.e. the differentiation of trunk segments as adaptation to different adult life‐styles, are also discussed, stressing the necessity for a better definition of larval segments. The hypothesis of the evolution of a compartimented coelom as an adaptation to peristaltic movements in an oligochaetoid form is rejected, due to both its difficult application to vagile forms with parapodial development and complete septa, and the fact that most of the burrowing polychaetes lack complete septa. Reduction or loss of septa is accompanied by parapodia reduction in some forms, and by increased efficiency of parapodia in other. The occurrence of septa in polychaetes is probably a reflection of growth processes by which new segments are added posteriorly, it is therefore more likely that their loss, rather than their retention, requires a functional explanation. The whole body design and the occurrence of some structures seem in polychaetes strictly linked to life habit so obscuring any phylogenetic relationships. This, together with the scarcity of fossil evidence, gives rise to numerous problems in tracing a phylogenetic pattern and in hypothesising the ancestral form. Two main contrasting hypotheses have been formulated as regards the annelid ancestor: the first depicts it as errant and epibenthic, the second as burrowing or oligochaetoid form. Both hypotheses are discussed also in the light of larval morphology and reproductive biology. It is hypothesised that the ancestral form could be very close to a relatively large meiofaunal ‘polygordiid‐like’ annelid, with a biphasic cycle, in which metamerism arised for developmental constraints. From this ‘Bauplan’ an errant form may be derived, with development of parapodia to improve the efficiency of lateral contraction." @default.
• W2020608907 created "2016-06-24" @default.
• W2020608907 creator A5019456376 @default.
• W2020608907 creator A5028947678 @default.
• W2020608907 date "1998-01-01" @default.
• W2020608907 modified "2023-09-24" @default.
• W2020608907 title "Metamerism and life‐style within polychaetes: Morpho‐functional aspects and evolutionary implications" @default.
• W2020608907 cites W138376162 @default.
• W2020608907 cites W1941067110 @default.
• W2020608907 cites W1976910278 @default.
• W2020608907 cites W1977296645 @default.
• W2020608907 cites W1979895494 @default.
• W2020608907 cites W2002433954 @default.
• W2020608907 cites W2002638704 @default.
• W2020608907 cites W2008286391 @default.
• W2020608907 cites W2012333909 @default.
• W2020608907 cites W2028275254 @default.
• W2020608907 cites W2030592810 @default.
• W2020608907 cites W2031412697 @default.
• W2020608907 cites W2032004899 @default.
• W2020608907 cites W2033918514 @default.
• W2020608907 cites W2038363972 @default.
• W2020608907 cites W2045220362 @default.
• W2020608907 cites W2047020469 @default.
• W2020608907 cites W2047348204 @default.
• W2020608907 cites W2059017331 @default.
• W2020608907 cites W2064219319 @default.
• W2020608907 cites W2069637901 @default.
• W2020608907 cites W2086878684 @default.
• W2020608907 cites W2087350017 @default.
• W2020608907 cites W2467272788 @default.
• W2020608907 cites W3023774277 @default.
• W2020608907 cites W4241001892 @default.
• W2020608907 cites W4246944887 @default.
• W2020608907 doi "https://doi.org/10.1080/11250009809386725" @default.
• W2020608907 hasPublicationYear "1998" @default.
• W2020608907 type Work @default.
• W2020608907 sameAs 2020608907 @default.
• W2020608907 citedByCount "17" @default.
• W2020608907 countsByYear W20206089072013 @default.
• W2020608907 countsByYear W20206089072021 @default.
• W2020608907 crossrefType "journal-article" @default.
• W2020608907 hasAuthorship W2020608907A5019456376 @default.
• W2020608907 hasAuthorship W2020608907A5028947678 @default.
• W2020608907 hasConcept C123719069 @default.
• W2020608907 hasConcept C126838900 @default.
• W2020608907 hasConcept C139807058 @default.
• W2020608907 hasConcept C143409427 @default.
• W2020608907 hasConcept C148737382 @default.
• W2020608907 hasConcept C151730666 @default.
• W2020608907 hasConcept C169760540 @default.
• W2020608907 hasConcept C182025440 @default.
• W2020608907 hasConcept C18903297 @default.
• W2020608907 hasConcept C196843134 @default.
• W2020608907 hasConcept C23785310 @default.
• W2020608907 hasConcept C2777261249 @default.
• W2020608907 hasConcept C2777343278 @default.
• W2020608907 hasConcept C2778726610 @default.
• W2020608907 hasConcept C2781123465 @default.
• W2020608907 hasConcept C505870484 @default.
• W2020608907 hasConcept C54355233 @default.
• W2020608907 hasConcept C59822182 @default.
• W2020608907 hasConcept C65835030 @default.
• W2020608907 hasConcept C71924100 @default.
• W2020608907 hasConcept C72362118 @default.
• W2020608907 hasConcept C78458016 @default.
• W2020608907 hasConcept C86803240 @default.
• W2020608907 hasConcept C90856448 @default.
• W2020608907 hasConceptScore W2020608907C123719069 @default.
• W2020608907 hasConceptScore W2020608907C126838900 @default.
• W2020608907 hasConceptScore W2020608907C139807058 @default.
• W2020608907 hasConceptScore W2020608907C143409427 @default.
• W2020608907 hasConceptScore W2020608907C148737382 @default.
• W2020608907 hasConceptScore W2020608907C151730666 @default.
• W2020608907 hasConceptScore W2020608907C169760540 @default.
• W2020608907 hasConceptScore W2020608907C182025440 @default.
• W2020608907 hasConceptScore W2020608907C18903297 @default.
• W2020608907 hasConceptScore W2020608907C196843134 @default.
• W2020608907 hasConceptScore W2020608907C23785310 @default.
• W2020608907 hasConceptScore W2020608907C2777261249 @default.
• W2020608907 hasConceptScore W2020608907C2777343278 @default.
• W2020608907 hasConceptScore W2020608907C2778726610 @default.
• W2020608907 hasConceptScore W2020608907C2781123465 @default.
• W2020608907 hasConceptScore W2020608907C505870484 @default.
• W2020608907 hasConceptScore W2020608907C54355233 @default.
• W2020608907 hasConceptScore W2020608907C59822182 @default.
• W2020608907 hasConceptScore W2020608907C65835030 @default.
• W2020608907 hasConceptScore W2020608907C71924100 @default.
• W2020608907 hasConceptScore W2020608907C72362118 @default.
• W2020608907 hasConceptScore W2020608907C78458016 @default.
• W2020608907 hasConceptScore W2020608907C86803240 @default.
• W2020608907 hasConceptScore W2020608907C90856448 @default.
• W2020608907 hasIssue "1" @default.
• W2020608907 hasLocation W20206089071 @default.
• W2020608907 hasOpenAccess W2020608907 @default.
• W2020608907 hasPrimaryLocation W20206089071 @default.
• W2020608907 hasRelatedWork W1989032832 @default.
• W2020608907 hasRelatedWork W1989717344 @default.

• next