Felidae - Science topic

It depends on the type of organism to be studied... The area can be divided into squares and specific squares selected for study.

Thanks Shuraik Kader !

Thank you so much for your suggestions and recommendations. This is possible through excel also. One of my friend helped me to draw this Isopleths connect points. It’s simple, only you have to draw five regression trendiness (option: power) in a scatter plot. Here is an example image. Data are hypothetical. Thank you.

Attached is the Foxp3 HRM TSDR methylation assay standard curve. We do not recommend using WGA after SssI treatment.

Hola Gloria:

La referencia que tienes es de un resumen en un congreso y ni Víctor Bravo-Cuevas ni yo hemos visto nunca el material al que se refieren ahí. Sin embargo, te adjunto el artículo al que hace referencia Eduardo Jiménez-Hidalgo.

Saludos.

Ganga Ram Regmi, an old question, but it popped up on my feed.

Defining your grid relative to average home range size for an occupancy study is one option, but it doesn't have to be. It's something that has crept into the literature (particularly for big cats) and stems from a desire to interpret the level of occupancy as proportional to abundance. There's no theoretical reason why you have to do this.

You can define your grid cell size however you want, and I often think it's actually better to define your cell to be smaller than a home range size, as I describe in the video Jeffrey J. Thompson mentioned (thanks for the plug;-) ).

If resources allow using camera traps, then in the first instance I'd be considering using SCR for snow leopards, in which case you want multiple cameras per home range to get information about spatial movemement.

Hope that helps.

You may want to monitor this project website (https://predatorpreyproject.weebly.com/) or reach out to Laura R. Prugh

This is a classic paper;

Ross, P.I., Jalkotzy, M.G. & Daquist, P.Y. (1995) Fatal trauma sustained by cougars, Felis concolor, while attacking prey in southern Alberta. Canadian Field-Naturalist, 109, 261-263.

There are several more like this hiding in the various North American wildlife naturalist journals - but good luck searching for them!

Yes.

Thank you Nishith.

My email is subirbandyopadhyay@yahoo.com

Hi Tara

How many samples do you have?

I am very interested in being involved with this work, and I have some experience with DNA extraction from scat samples.

Please message me through my RG profile (they don't seem to like us posting email addresses) if you're interested in talking further - I am at Stellenbosch University in Cape Town.

Kind regards,

Nikki

Hi Yadav, 

I do think it is an interesting line of thought and I would be interested to see whether the tiger removes the lesser predators, or whether they emigrate the area of their own volition now that they have been usurped of their top predator status. But I would still be on the page that this was due to direct competition over the same carcass, initiated by the tiger - rather than the "public example hypothesis" :)

If you do find a jackal corpse killed in a similar fashion, then I would be thinking it could only be a tiger that has killed it. Principally because most canids are pack hunters and an intruder to a packs territory would not be met by a single member of the pack. Therefore I would expect that the carcass would be relatively torn-apart in the fighting, even if it wasn't eaten. 

Again a jackal (even a bigger one) is not that much bigger than a leopard or even some of the smaller cat family members. I would have thought the potential risk during a battle would be a deterrent. I just can't imagine a small-medium sized predator deciding to risk injury without the direct benefit of food. Difficult one

We had good success with both of the scents we tried: catnip and men's obsession.....yes, the cologne for humans!!  (as far as I know ours is the only paper that compares this scent to other attractors, however they are many anecdotal notes in popular media about the use of this scent for cat surveys).   You can find the paper here in researchgate:https://www.researchgate.net/publication/229980652_HairTrap_Efficacy_for_Detecting_Mammalian_Carnivores_in_the_Tropics?ev=prf_pub

We were using nail and velcro carpet squares.  We would put the scent on the carpet surface and leave those in place for long periods of time (access to the transects was very difficult).   So, we did not replenish at all and still had good results.   To me it was amazing that after a couple of months the obsession carpets still had some smell detectable by us!!   But as you can read in this paper we found no differences between these two scents.

I agree that cats get likely attracted to this as a "novelty" scent in their territories.  It would be interesting to find out if any other men commercial fragance also draws them.  I also assume they might lose interest over time.   So, instead of scent renewing I would suggest putting a new set of hair-traps (parallel locations maybe?) with different scents.  But then you face the issue of comparability and replication.

I will go against constant visits to a hair trap station as every visit will bring human odor to the site.  Aversion to the scent can be very strong and this might be the reason cats stop using heavily a station.   Most people do not take great care to handle and set up these stations.   I have even seen people smoking while preparing these hair traps!!!  You should wear gloves while building them, use an odor remover and pack them in thick zipper bags.  In the field we de-scent (commercial product used by hunters), use rubber boots, cotton gloves and only ONE person sets the station.   Need to have the mindset of a trapper.  If you know a person with those skills get some advice from them.   Hope this helps.