2022
DOI: 10.22352/aip202250006
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Variación latitudinal del tamaño corporal de Tegula atra (Lesson, 1830) (Gasterópodo: Trochidae) en aguas someras del sur de Chile

Abstract: La gran variabilidad de los ambientes marinos en Chile está asociada a la longitud de su costa, la cual está regulada por diversos procesos oceanográficos que perfilan la distribución, abundancia y morfología de las especies marinas. Tegula atra es un gasterópodo marino de gran distribución en el Pacífico sur, cualidad que le permite ser un buen modelo de estudio para evaluar la variación de su tamaño corporal respecto a su distribución latitudinal. Un total de 236 individuos fueron recolectados en siete sitio… Show more

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“…Predation pressure on benthic invertebrates is often shown to increase with temperature (Ashton et al, 2022; Duffy et al, 2015; Fawcett, 1984; Heck & Wilson, 1987) and there is evidence of relationships between body size and predation pressure in invertebrates (Blumenshine et al, 2000; Quintana et al, 2015; Detmer et al, 2017). For example, decreased predation by starfish in the colder portion of the range was hypothesized to contribute to an increasing body size cline in the marine gastropod Tegula atra (Palacios Subiabre et al, 2022). However, predation risk and temperature can interact in complex and offsetting ways depending on prey species' thermal reaction curves and the relative temperature sensitivity of predator activity (De Block et al, 2013; Matassa & Trussell, 2015), limiting generalizations.…”
Section: Discussionmentioning
confidence: 99%
“…Predation pressure on benthic invertebrates is often shown to increase with temperature (Ashton et al, 2022; Duffy et al, 2015; Fawcett, 1984; Heck & Wilson, 1987) and there is evidence of relationships between body size and predation pressure in invertebrates (Blumenshine et al, 2000; Quintana et al, 2015; Detmer et al, 2017). For example, decreased predation by starfish in the colder portion of the range was hypothesized to contribute to an increasing body size cline in the marine gastropod Tegula atra (Palacios Subiabre et al, 2022). However, predation risk and temperature can interact in complex and offsetting ways depending on prey species' thermal reaction curves and the relative temperature sensitivity of predator activity (De Block et al, 2013; Matassa & Trussell, 2015), limiting generalizations.…”
Section: Discussionmentioning
confidence: 99%