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Fig. 2 | Movement Ecology

Fig. 2

From: Is it the road or the fence? Influence of linear anthropogenic features on the movement and distribution of a partially migratory ungulate

Fig. 2

Conceptual diagram of the sampling design for the crossing and proximity effects for migrant and resident pronghorn in the Alberta, Canada, 2003–2007. For the crossing effect, we calculated step lengths and turning angles between consecutive used Global Positioning System points and used those distributions to randomly select five step lengths and five turning angles for each used point. We then counted the number of crossings of each of our 4 linear features between successive used locations and between the used location and its paired five available points. For the proximity effect, we buffered each used point by 6746 km (sensu [5]) and then randomly placed 5 available points within this buffer. We then calculated the distance to the nearest feature for each linear feature. The 4 linear features were pasture fence (FENCE), a road with no associated fences (RNF), a road fenced on one side (R1F), and a road fenced on both sides (R2F)

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