Quote:
KitFox,
What brand and model of GPS is that?
$bob$
Magellan Meridian Gold
Quote:
thats not a cat track. it has the claws on the tips of the toes.
The presence or absence of claws cannot be used as a definite indicator of their origin.
http://www.bigcats.org/abc/identification/pumadogtracks.html
PART 1: The Reliability of Track Traits Used to Discriminate Lions from Dogs
Methods.
We applied the traits presented in the literature as discriminators between lion and dog tracks to tracks we collected during our previous 5 years of field work. We evaluated the reliability of each of these traits in the order they were presented in the introduction, as well as for three other traits that we felt might be useful.
Results.
We never saw a lion track that included claw marks but we
were told by professional trackers that they occur, and some authors have recorded their occurrence (Downing 1979, Shaw, 1983). We did encounter dog tracks that had no claw marks, including tracks from 2 of the 19 dogs in our quantitative analysis. Those who have observed claw marks in lion tracks reported that they are much thinner than claw marks in dog tracks. Therefore, the presence or absence of claw marks and their relative widths in a track is an excellent discriminator, but not a perfect one.
2. Most dog tracks only showed to heel lobes. However, we encountered a fair number of dog tracks that included 3 heel lobes, and most dogs we examined had 3 lobes on their feet. This suggests that dogs walk more on their toes than lions so that relatively less weight is applied to the rear of the foot. However, when dog tracks included three heel lobes, they still differed from the 3 heel lobes of lions most of the time: the 2 outer heel lobes in dog tracks were smaller relative to the middle lobe (Figure 1), whereas mountain lion heel lobes were more equal in size and shape. Therefore, the number of heel lobes and their shapes can greatly increase our ability to discriminate dog and lion tracks, but again, not all of the time.
3. Not all dog tracks were relatively elongate, and not all lion tracks were relatively round. However, both lion and dog tracks tended to follow a similar pattern of shape -- the rear tracks usually were more elongate than the front ones. Thus, the overall elongate shape of a dog or lion track was a poor trait for discrimination.
4. Lion tracks usually included a leading toe. The second toe from the medial aspect of the track leads the third, and the first toe also usually leads the fourth. However, some lion tracks we found were nearly symmetrical, and a few dog tracks had leading toe prints similar to the lion's. Therefore, this trait should not be considered alone when differentiating dog and lion tracks.
5. We found no dog tracks that were squared off at the front of the heel pad as in lion tracks. However, some rear tracks of lions failed to show the squared front of the heel pad, and appeared pointed very much like dog tracks. This probably results when the front of the lion's heel pad fails to press firmly down into the soil. This trait, therefore, should discriminate well except when only rear tracks are visible in a track set.
We found that lion toes usually were more pointed than dog toes. However, the shapes of dog toes varied enough to question any judgement based solely on this trait.
The common lion track pattern differed from that of dogs in several ways. Lion tracks more often occurred in pairs consisting of tracks made from the same side of the body (left with left, right with right) (Frames A and B of Fig. 2) than did dog tracks. Dog tracks tended to occur more singly, usually with fairly equal distances between each track (Frame C of Fig. 2). When dog tracks occurred as pairs they usually were offset, one beside the other. Pairs of lion tracks usually included the coincidence of the rear track directly on top of the fore, or directly in front of the fore. However, lion tracks sometimes occurred singly and were spaced similar to do's tracks. Therefore, the track pattern alone is not a good track discriminator.
Figure 3 presents some of the heel pads we encountered. Although the heel pad size relative to the overall track often was similar between dogs and lions, dogs exhibited a greater variety of heel pad shapes, many of which looked quite different than lions. Therefore, many dog tracks can easily be identified based on the relative size and the shape of their heel pads, but there will always be some that look similar to the heel pads of lions.
We applied Belden's ratio of the widths of the widest toe to the heel pad to many dog and lion tracks, and found that this ratio to not work often enough to rely on it alone. A modified version of this ratio was tried in a quantitative analysis presented later in this paper.
A partial measure of the distance between the toes also was tried in the quantitative analysis of Part 2.
In addition, we noted several other traits that served as good discriminatory indicators, but were not found in the literature. A fairly good discriminator between lion and dog tracks was the presence or absence of a mound of soil between the toes and the heel pad. Dog tracks almost always exhibited a pronounced mound of soil, but we never saw one in a lion track. Therefore, this trait should contribute greatly to discrimination, but because this mound of soil was absent in some dog tracks, it should be used with other traits as well.
We noted that travel behavior served as a fairly good discriminator of lion and dog tracks. Dogs often wandered around the road in an almost erratic fashion with a variety of speeds, plus the stopped and started. Lions exhibited 2 main travel behaviors when on the road: they usually either traveled the route of least distance by traveling straight lines from corner to corner, and then cutting the corners, or they stayed to one side of the road and did not cut corners. About half of the lion track sets we encountered stayed on one side of the road. When there was heavy cover on both sides of the road a lion exhibiting this type of behavior stayed on the uphill side of the road. But, without cover on the downhill side of the road the lion would move to this side and travel along it until cover reappeared. Therefore, travel behavior can add to the discriminatory powers of the other traits mentioned above.
The angle of the long axis of the outer toes with respect to each other also seemed to be a good discriminator. This trait was tried in the analysis of Part 2.