000095662 001__ 95662
000095662 005__ 20230519145354.0
000095662 0247_ $$2doi$$a10.1111/jbi.13942
000095662 0248_ $$2sideral$$a119823
000095662 037__ $$aART-2021-119823
000095662 041__ $$aeng
000095662 100__ $$aRozzi, Roberto
000095662 245__ $$aCausal explanations for the evolution of ‘low gear’ locomotion in insular ruminants
000095662 260__ $$c2021
000095662 5060_ $$aAccess copy available to the general public$$fUnrestricted
000095662 5203_ $$aAim: Mammals on islands often undergo remarkable evolutionary changes. The acquisition of ‘low gear’ locomotion, namely short and robust limb elements, has been typically associated with the island syndrome in large mammals and, especially, ruminants. Here we provide an investigative framework to examine biotic and abiotic selective factors hypothesized to influence evolution of this peculiar type of gait. Location: Islands worldwide. Taxon: Bovidae. Methods: We calculated response variables associated with ‘low gear’ locomotion in 21 extinct and extant insular bovids. We assembled data on the physiography of 11 islands and on life history and ecological traits of the focal taxa. We estimated 10 predictors (island area and four topographic indices, body mass, body size divergence, number of predators and competitors, large mammal richness) and used multiple regressions, regression trees, and random forests to assess their contextual importance. Results: The acquisition of ‘low gear’ locomotion generally happens on islands with a small number of competitors. However, the roughness of the island terrain appears to be also important, without being a main driver. Finally, although the most extreme cases of ‘low gear’ locomotion occurred on islands with no mammalian predators, our models show a non-significant relationship with this factor. Main conclusions: The evolution of ‘low gear’ locomotion in insular ruminants does not simply result from phyletic dwarfing and predatory release. Variation in morphological responses within Bovidae to ecological and topographic traits suggests, instead, a complex interplay of biotic and abiotic factors. Current understanding on the main drivers of species evolutionary pathways and biogeographic patterns are disproportionally based on few taxa, mainly vertebrates, and in some extreme cases (like this one) even on few species. Here we show how adding more data, even within the same taxonomic group, can challenge historically accepted macroevolutionary and macroecological concepts.
000095662 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000095662 590__ $$a4.81$$b2021
000095662 591__ $$aECOLOGY$$b41 / 174 = 0.236$$c2021$$dQ1$$eT1
000095662 591__ $$aGEOGRAPHY, PHYSICAL$$b9 / 50 = 0.18$$c2021$$dQ1$$eT1
000095662 594__ $$a7.3$$b2021
000095662 592__ $$a1.607$$b2021
000095662 593__ $$aEcology, Evolution, Behavior and Systematics$$c2021$$dQ1
000095662 593__ $$aEcology$$c2021$$dQ1
000095662 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000095662 700__ $$aVarela, Sara
000095662 700__ $$0(orcid)0000-0003-2942-2840$$aBover, Pere
000095662 700__ $$aMartin, Jeff M.
000095662 7102_ $$12000$$2655$$aUniversidad de Zaragoza$$bDpto. Ciencias de la Tierra$$cÁrea Paleontología
000095662 773__ $$g47, 10 (2021), 2274-2285$$pJ. biogeogr.$$tJOURNAL OF BIOGEOGRAPHY$$x0305-0270
000095662 8564_ $$s1448155$$uhttps://zaguan.unizar.es/record/95662/files/texto_completo.pdf$$yVersión publicada
000095662 8564_ $$s447377$$uhttps://zaguan.unizar.es/record/95662/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000095662 909CO $$ooai:zaguan.unizar.es:95662$$particulos$$pdriver
000095662 951__ $$a2023-05-18-13:30:48
000095662 980__ $$aARTICLE