Fig 6 - uploaded by Yander L. Diez
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A-Representation of the principal components 1 and 2 of the shape variation. The predation rate (%) is represented beside the acronym of each species. B-displacement of 0.30 units to the negative direction in PC 1. C-displacement of 0.20 units to the positive direction in PC 1. D-displacement of 0.40 units to the negative direction in PC 2. E-displacement of 0.20 units to the positive direction in PC 1. AcGo-Acorylus gouldii, AmMe-Americardia media, ArAd-Arcopsis adamsi, BaCa-Barbatia candida, BaDo-Barbatia dominguensis, BrEx-Brachidontes exustus, ChPy-Chioneryx pygmaea, ChspChione spp., CoOr-Codakia orbicularis, CtIm-Ctena imbricatula, EpPe-Epicodakia sp., Lus3-Lucinidae sp. 3, Lusp-Lucina sp., ScCa-Scissula candeana, SeNu-Semelina nuculoides, and TrCu-Transennella cubaniana.
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...
Contexts in source publication
Context 1
... n BaCa = 10; n BaDo = 16; n ChPy = 11; n CoOr = 12; n EpPe = 10; n BrEx = 10; n Lus3 = 14; n ScCa = 10; n SeNu = 12; n TrCu = 10, and n AmMe = n CtIm = n Chsp = n Lusp = 30; F = 132,200; p = 0,0001). A summary of the p-values of the corrected Bonferroni test is shown in Table 2. PC 1 and PC 2, which represent 76.85% of the variance, are shown in Fig. 6. Fig. 6A 1758) is separated from the rest of the species in PC 2, whereas the other species are separated in PC 1. Shell shape variability is represented in the negative (Figs. 6B & 6D) and positive direction (Figs. 6C & 6E) of PC 1 and PC 2, respectively. The species with semi-circular shells group towards the middle of both PCs, and those ...
Context 2
... p-values of the corrected Bonferroni test is shown in Table 2. PC 1 and PC 2, which represent 76.85% of the variance, are shown in Fig. 6. Fig. 6A 1758) is separated from the rest of the species in PC 2, whereas the other species are separated in PC 1. Shell shape variability is represented in the negative (Figs. 6B & 6D) and positive direction (Figs. 6C & 6E) of PC 1 and PC 2, respectively. The species with semi-circular shells group towards the middle of both PCs, and those that segregate tend to have elliptical shapes. See Fig. 7 for a comparison of the predation rate with respect to the shell's ...
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). ...
