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Hi Nalani,<br>
<br>
Yes you have an interesting study. The interactions between
individuals are at the center of a lot of important questions, and I
think there's a growing interest in using tracking data to look at
interaction. Home range overlap, which Minta's (1992) method builds
off of, seems like a good place to start. You can certainly compute
home range overlap in T-LoCoH (for details see <a
href="http://tlocoh.r-forge.r-project.org/tips_faqs.html">Measuring
area of intersection for isopleths</a>). T-LoCoH has a bit more
flexibility than other home methods because it allows you to define
a home range along a number of gradients (such as revisitation rate
or directionality), which could be useful in intersection studies
depending on the question.<br>
<br>
I believe the analysis of interactions from movement data is an area
where more research is needed. Techniques that are based on the
intersection of home ranges and UDs wash away the temporal dynamics
that questions like yours are interested in. I present in chapter 6
of my <a
href="http://www.andylyons.org/files/lyons_2012_multi-optic-conservation_2012-12-14.pdf">dissertation</a>
some preliminary ideas for using hulls themselves (not isopleths) to
characterize the spatiotemporal dynamics of two individuals, which
might be of interest.<br>
<br>
Best,<br>
Andy<br>
<br>
<br>
On 4/9/2015 8:40 AM, Wayne Getz wrote:<br>
<blockquote
cite="mid:060AAF15-9FFD-443D-B5C0-301D55CF3600@berkeley.edu"
type="cite">
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Hi Nalani:
<div class=""><br class="">
</div>
<div class="">Sounds like an interesting study. I look forward to
seeing your results.</div>
<div class=""><br class="">
</div>
<div class="">Best</div>
<div class=""><br class="">
</div>
<div class="">Wayne</div>
<div class=""><br class="">
<div>
<blockquote type="cite" class="">
<div class="">On Apr 8, 2015, at 10:44 AM, Nalani Ludington
<<a moz-do-not-send="true"
href="mailto:nalani.ludington@gmail.com" class="">nalani.ludington@gmail.com</a>>
wrote:</div>
<br class="Apple-interchange-newline">
<div class="">
<div dir="ltr" class="">Hello all,
<div class=""><br class="">
</div>
<div class="">I am using T-LoCo for a study of black
bear in Yosemite National Park, California. I will be
examining how despotic distribution influences adult
male and adult female use of areas of human
development. Part of my study involves looking at
males and females whose home ranges overlap in a
developed area. I will look at presences and absences
of each sex in the area of overlap to see if females
are avoiding the shared area when a male is present. I
was wondering if anyone knows if there has been any
work done on a question like this using T-LoCo? The
current method that I plan to use was presented in
Minta 1992 (see full citation below). This method
basically takes presences and absences for each animal
and compares them to the expected frequency of
spatially independent home range use by each animal
relative to the other, and the expected frequency of
temporally independent home range use by the two
animals. </div>
<div class=""><br class="">
</div>
<div class="">Minta, S.C. 1992. Test of spatial and
temporal interaction among animals. Ecological
Applications 2: 178-188. </div>
<div class=""><br class="">
</div>
<div class="">Thanks!</div>
<div class="">-Nalani</div>
<div class=""><br class="">
</div>
<div class=""><br class="">
</div>
<div class=""><br class="">
</div>
<div class=""> Nalani Ludington
<div class="">
<div class="gmail_signature">
<div dir="ltr" class="">
<div class="">Humboldt State University </div>
<div class="">Wildlife Department </div>
<div class="">1 Harpst St. Arcata, CA 95521</div>
<div class=""><a moz-do-not-send="true"
href="mailto:nalani.ludington@gmail.com"
target="_blank" class="">nalani.ludington@gmail.com</a></div>
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<div
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Starker
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Professor of
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