Honey Bees Bearding On Bee Hive Thermal Imaging FLIR C2 Hive Temperature


okay so today we have some more fun and
interesting stuff to do what I’m going to do is look at these beads and we’re
seeing bees actually bearded and mass on the outside of our beehives and this is
happening all over the apiary now we have cold mornings and we have an
abundance of bees in the work force in these colonies so what they do is they
forage out through the day they’re bringing in so much nectar and so many
resources that the workforce actually moves outside the hive and collects on
the side if you notice on the landing board here – that’s what’s called
bearding when they hang and collect underneath the energy level of these
bees is very low when they’re on the outside and the reason is because they
want to conserve their resources and here at the landing board at this
reducer you’ll notice that these bees are just Fanning their wings as fast as
they can and that’s because of humidity levels inside the hive are extremely
high right now as is the heat speaking of heat look at this thermal image of
the landing board and you can see that that lightest color dead center is the
vent to the hive and you’ll see that they are sending out temperatures that
go all the way up into the 80s while if you look at the right-hand scale here
there are portions in the field of view here that are down to 40 and even 39
degrees so it’s a cold day out there now what’s the temperature of the bees that
are collected on the outside and are all of their bodies the same temperature
well we’re gonna find out with this thermal imager all the way up to 84.2 now at the sensor
in the dead center of the field of view there this is just a close-up of the bees
beating on the landing board of course as I mentioned before now this is the
eastern side and what we have going on here notice their outstretched fore
limbs as they cling to that telescoping top what happens is once they lock their
little feet on there they’re using almost no energy
it’s a latching mechanism that’s in the design of the bee’s feet that once
they hook into something they can hold on without expending energy to do that
so now we’re gonna take a look first of all this is a couple inches thick and
the bees are just heavy-duty out here and we’re gonna also take a look
thermally at whether or not all of these bees have the same temperature and
they’re using the same energy at the same time there’s a lot of bees I don’t
know what’s going on this year but this fall all of my hives have generated huge
numbers of workers and they’re bringing in nectar at an incredible rate but
let’s see the thermal image now look at this the dark purple and blue areas of
course are the colder beats all the way down to 60 61 degrees and you’ll notice
if you look at the scale to the right on this screen it says 82 83 so then some
of these hot spots some of the warmer bees that are active actually have
a body temperature at temps in the 80s so this is really interesting to look at
those that are conserving and of course it’s early morning so these bees are
waking up and starting to move and this is the east side so it’s going to get
the sunlight first but it’s very interesting to be able to look at these
with a thermal image and see that there are hot bodied bees in this group and
others that are still virtually dormant and they’re allowing their body
temperatures to get down to 60 or 59 58 degrees in order to conserve energy on
the outside of the hive and again that upper left temperature
that’s bobbing around 71 degrees 73 76 those are the temperatures at the circle
in the dead center of the field of view here and of course the background temperature
is 46 degrees so it’s a cold morning now this is a valuable tool because we can
look at beehives in the apiary and look at the hot spots we can tell
which hive bodies are occupied and generating the most heat and of course
the more bees the more heat they’re generating and again they’ve collected
on the outside of the hives because it’s actually too hot inside and the humidity
levels are too high so they’re getting the air out and of course there’s a
yellowjacket trying to get in unsuccessfully a look again this is
another hive look at the number of bees that are collected on the outside it’s
too hot and it’s too humid inside these are field bees and again the venting
that’s coming out is in the 80s but we’re gonna look at the body
temperatures and see that there are heater bees and those that are remaining
cool in the morning air and just look at the little hotspots moving around here
it’s very interesting to have this tool and again if you look up or right on the
scale some of these hotspots are up to 93 degrees and this is on the outside of
the hive in a morning where the temperatures in the high 30s low 40s that’s something I want you to notice
when you see the bees moving around and then you see the yellow dot that appears
showing their temperature which is offset from the physical parameters of
the bee that’s because this camera uses parallax lensing one of the lenses is
the lower well one of the lenses shoots lower and that is just for the image
and then the lower lens on the camera is offset a little so it gathers heat or
shows the heat print and that’s why you see the bees moving off to the left here
and then the yellow dots above them we have two lenses at play here to give us
this compound image that we’re looking at but what a great tool we’re going to
be able to look at our hives and immediately know number one if they’re
occupied number two how strong the hive is and how much temperature elevation is
occurring at the entry board and at that reducer so we’re going to know that the
bees are doing well inside or not and this is a front and I’ll of course show
you the camera because I’m you’re probably dying to know this is a FLIR c2
and it’s a handheld self-contained thermal imaging camera it can also take
normal pictures if you look at the front here the upper lens is for the normal
picture capture and the lower larger diameter lens is the thermal imaging
lens also off to the side there you see that it has a light built into it for
flash or for a constant light so that you can see what it is you’re looking at
the camera does not collect video on its own
it only collects still images so I made the video by running another camera up
against the screen so that we can get a live view of what’s going on with these
honeybees but I’m just beginning to explore all the different things I’m
going to be able to do with this little c2 camera center button on top is for
taking the still picture and that’s the on/off button this thing goes in your
pocket it’s pretty heavy-duty the way it’s made it has a nice bumper built
around it and I’m super happy with it the weather is about to turn it’s gonna
get bad winters gonna come in the bees are going to need that pollen for the
protein to grow and develop and they’re also going to be needing to bring in as
much nectar as they can before winter arrives full force I hope you enjoyed
this video and I hope that you got something out of it
thermal imaging is going to be a terrific tool for me here in my apiary
as we learn more about the honeybees and their energy consumption thanks as
always for watching

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