Fig 2 - uploaded by Yander L. Diez
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Distribution of the landmarks in the left valve of Acorylus gouldii. The same pattern was applied to all analysed species (landmarks type I [1], type II [4 and 9], and type III [2, 3, 5, 6, 7, 8, and 10]).
Source publication
Drilling predation plays an important role in the evolution and diversification of organisms, and is one of the most studied biotic interactions in fossil and modern records. Marks of drilling predation on mollusc shells are proof of food activity and the selective pressure of one taxon on another. In this study, we explore drilling predation on pr...
Context in source publication
Context 1
... recorded the morphology of the left valve (internal view) of 16 species, randomly selecting up to 30 shells of each. Geometry morphometric tools were used to study the relationship between the shape of the valves and the predation rate. On the valves of the 16 selected species, 10 landmarks were located (Fig. 2) using the software tpsDig 2.17 (Rohlf, 2008). These landmarks were classified as type I, II or III using the anatomic and geometric criteria of Bookstein (1991). A single type I landmark (landmark 1) was located in the beak of each valve. Type II landmarks (landmarks 4 and 9) were located over the maximum curvature of the lateral ...
Citations
... These authors observed a higher predation rate on bivalves and noted that predation appeared to be non-elective and was determined by prey abundance. Recently, Diez et al. (2023) investigated this phenomenon on bivalve shell deposits and found that the predation rate was also related to the size and external morphology of prey. Moreover, drilling predation has been studied in the Cuban fossil record of serpulid polychaetes (Villegas-Martín et al., 2016), and drillholes were attributed to naticid gastropods. ...
... 75°50'22.9''W). For a detailed map of the sampled area and its ecological characteristics, the reader is referred to Diez et al. (2023) and references therein. ...
... This argument is further supported by the high total predation rate (24.5%), which reaches even higher values for particular species. Our results for the study locality in Guardalavaca support the notion that predation rate on gastropods is similar to the situation in bivalves (22%; Diez et al., 2023). In other published studies, this parameter varies between 7% and 37% (Pruss et al., 2011), whereas in northern of Cuba, the recorded predation rates range from 19% to 29% (Gordillo et al., 2019). ...