Dissecting post-Palaeozoic arms races

Harper, E. M. (2006) Dissecting post-Palaeozoic arms races. Palaeogeography, Palaeoclimatology, Palaeoecology, 232 (2-4). pp. 322-343. DOI 10.1016/j.palaeo.2005.05.017

[img] PDF
Harper_Pal_Pal_Pal_232.pdf
Restricted to Registered users only

Download (444kB)

Abstract

In the last 40 years, there has been a dramatic increase in our knowledge about predator–prey interactions in the fossil record. Studies have become more focussed to testing specific hypotheses concerning arms races and have employed increasingly sophisticated analyses. Using evidence from crushing and, in particular, drilling predation (largely on molluscan prey), it has been possible to show an episodic increase in predation pressure over time, accompanied by enhancement of predatory methods and behaviour. A wide range of defensive adaptations (life habit, morphological, and behavioural) is thought to have evolved in response to this increase in predation pressure. The consensus is that over evolutionary timescales, escalation may be more important than coevolution in most instances, but the two are difficult to distinguish from the fossil record. Our data are very ‘noisy’ and future work should concentrate on trying to provide a wider spread of data (e.g., from different target organisms) and seek to focus on specific regions or environments that have been less well studied.

Item Type: Article
Uncontrolled Keywords: 2006 AREP IA47 IA50 2006 P
Subjects: 04 - Palaeobiology
Divisions: 04 - Palaeobiology
Journal or Publication Title: Palaeogeography, Palaeoclimatology, Palaeoecology
Volume: 232
Page Range: pp. 322-343
Identification Number: 10.1016/j.palaeo.2005.05.017
Depositing User: Sarah Humbert
Date Deposited: 16 Feb 2009 13:02
Last Modified: 23 Jul 2013 10:07
URI: http://eprints.esc.cam.ac.uk/id/eprint/349

Actions (login required)

View Item View Item

About cookies