Webster et al. NBDA_Am Nat

Part 1: Association matrices used to compare association network structure in open and structured environments.Part 2a: Association matrices used to compare association network structure in open and structured environments for diffusion analysis. Part 2b: Prey and control patch entry times and orders, used in diffusion analysis

Morphological index 2.

<p>The mean scores (+/− standard error) of fish from each of the six collection sites for the second morphological index, describing described 26.6% of the morphological variation in the sample. Morphological index 2 includes variation in body depth and the robustness of the caudal peduncle and the size and angle of the base of the pectoral fin. The deformation plots on the right of the figure show the morphologies associated with the positive-most and negative-most scores. Tukey post-hoc analyses: * indicates P<0.05.</p

Plots showing consistency of landmark location.

<p>In order to confirm that landmarks could be identified precisely and consistently, both within and between samples, we repeatedly digitised landmarks on the same images. Five images were selected at random. For each image, the same 20 landmarks were digitised each day, for five consecutive days (see <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0021060#s2" target="_blank">Methods</a> and <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0021060#pone-0021060-g001" target="_blank">Figure 1</a> for discussion of the landmark selection criteria). The order in which each image was landmarked was randomised for each day. Landmark locations for days 1 to 5 are represented by blue, red, yellow, purple and black markers respectively. Each image represents a fish 36–40 mm in length.</p

Overview of environmental parameters at the six collection sites.

a<p>Determined by tidal cycle.</p>b<p>Maximum visual range, based on estimated Secchi depth.</p>c<p>Observed range over 12 month period (2005–2006), determined by variation in rates of precipitation and evaporation.</p>d<p>Including brown trout, <i>Salmo trutta</i>; Eurasian perch, <i>Perca fluviatilis</i>, northern pike, <i>Esox Lucius</i>.</p>e<p>Eurasian perch and northern pike present at low tide only.</p>f<p>Including grey heron, <i>Ardea cinerea</i>; kingfisher, <i>Alcedo atthis</i> and little egret, <i>Egretta garzetta</i>.</p>g<p>Including emperor dragonfly, <i>Anax imperator</i> and great diving beetle <i>Dytiscus marginalis</i>.</p

Location of the landmarks used in the morphological analysis.

<p>Line diagram of the left flank of a threespine stickleback, showing the locations of the 20 landmarks that were used in the morphological analyses. These landmarks correspond to: (1) the tip of the premaxilla, (2) the axis of the jaws, (3–6) the anterior-most, uppermost, posterior-most and lowermost point of the orbital circumference, (7–9) the posterior most edge of the first, second and third dorsal spines, at the points where they emerge from the dorsal surface, (10–11) the anterior- and posterior-most edges of the dorsal fin, at the points where it emerges from the dorsal surface, (12) the beginning of the caudal fin, where the membrane contacts the dorsal surface, (13–14) the upper- and lowermost points of the hypural fan, (15) the beginning of the caudal fin, where the membrane contacts the ventral surface, (16–17) the posterior- and anterior-most edges of the anal fin, at the points where it emerges from the ventral surface, (19) the posterior most edge of the left pelvic spine, (19–20) the lower and uppermost points of the pectoral fin base.</p

Atton et al. Familiarity, Networks & Foraging data

These worksheets contain the network structure and patch discovery data used to perform the analyses contained in this article

Morphological index 3.

<p>The mean scores (+/− standard error) of fish from each of the six collection sites for the third morphological index, describing described 22.1% of the morphological variation in the sample. Morphological index 3 describes variation in the form of the caudal peduncle, as well as the degree of tapering posterior of the pelvic spine. The deformation plots on the right of the figure show the morphologies associated with the positive-most and negative-most scores. Tukey post-hoc analyses: * indicates P<0.05.</p

Dorsal and pelvic spine relative size.

<p>The relative spines lengths (spine length/body length; mean +/− standard error) of fish from each of the six collection sites. Tukey post-hoc analyses: * indicates P<0.05.</p

Morphological index 1.

<p>The mean scores (+/− standard error) of fish from each of the six collection sites for the first morphological index, describing described 37.7% of the morphological variation in the sample. Morphological index 1 was primarily associated with variation in orbit diameter. Orbit diameter increased with decreasing morphological index score. The deformation plots on the right of the figure show the morphologies associated with the positive-most and negative-most scores. Tukey post-hoc analyses: * indicates P<0.05.</p