MO1 D04

SS02 (12)
General Information for the case study: if you would like access to this data set, please email your country office via the contact page

WRL reference M01 D04
Module M01 Ecosystems – Coral Reefs
Data Set D04 – Interspecific variation in anemonefish (clownfish) calls
Research questions 1. Which vocalisation characteristics differ between Amphiprion clarkia and Amphiprion perideraidon?
2. What could be the driving force of differences in vocalisations between species?
Keywords Adaptation; behaviour; competition: coral; evolution; error bars; ecosystem; hierarchy; sampling: selection; statistics; t-test; sampling; standard deviation; territory; variation
Potential Curriculum links AP Biology 1.C.1, 2.C.2, 3.E.2, 4.A.6,
AP Env Sci II Living world A-E
IB Biology 5.2, A.4, A.6, C.1, C.2
IB Ess 2.1.7
AQA 3.4.6, 3.4.7, 3.7.4, MS, AT, PS
edexcel A – 4.2, 4.3, 4.4, 5.1, 5.2, 5.3, B – 10.1 Maths A
OCR A –  4.2.1, 4.2.2, 6.1.3, 6.3.1, 6.3.2, M, PAG, HSW
SQA FH2G 3 (c) (i) (ii) (iv), FH2J 2 (b) (i) (iii)
CCEA  2.2.3, 2.3.2, 2.3.3,2.3.4, 2.3.5, 2.3.6, 5.6.5
WJEC C1-5, C2 -1, C3- 3, App B, Pract.req.
Summary

Clownfish or anemonefish live together on coral reef anemones and fish of the same species communicate with each other by ‘popping sounding’ calls.  Often there are 2 species of clownfish on the same anemone so you would expect the calls to differ between species.  This study looks at how the calls differ and think about how and why this might be achieved. The first research question involves plotting data collected by divers, calculating means and utilizing error bars, standard deviation and t-tests for analysis although not everything needs to be completed to make sense of the research question.

Research Question2 is far more involved and should only be attempted by students who are confident with the manipulation of figures e.g. scatter plots, natural logs and regression analysis.

This data set is particularly useful in linking together ideas about evolution.

Difficulty:

Research Q1 – 6/10

Research Q2 – 10/10