The teams in the orange vests that you’ve been seeing out in the early hours of the morning have now successfully immuno-contracepted (IC) 39 deer, in just twelve days! We have been finding the deer exactly where the preliminary report said we would, in the areas where there are the highest densities of deer, such as in the Uplands, around the golf courses, and some areas of South Oak Bay.
The field team, led by our wildlife veterinarian Dr. Adam Hering and our lead scientist, Dr. Jason Fisher, have used the same method of sedation that was used when we GPS collared 20 does in spring 2018. The deer are darted with a sedative, blindfolded once sedated, blood and fur samples are taken for the province, and after the necessary work is completed, a reversal drug is given that has the doe back on her feet within minutes.
This time however, while the doe is under sedation, we have also placed matching small tags in each ear, with a lasered number on them. There is also a smaller provincial tag which we’re required to mark the does with.
Along with being numbered, the tags are colour coded in an identification scheme that matches with a simple, coloured collar. These are not GPS collars and have no tags, their purpose is to help our wildlife biologists individually identify each doe both on the camera array spread across Oak Bay, and when we are looking for the does in order to give them an IC booster.
The identification collars fit high on the doe’s neck, and fit more snugly than the GPS collars. This is to minimize the chafing we noticed on some of the deer with the GPS collars. While the chafing is not a problem because the fur grows back in, we are always looking for ways to minimize the discomfort for these animals that we handle for the purposes of this cutting-edge research project.
To that end, we also inject lidocaine in each ear that numbs them for several hours so that the does don’t feel any pain from their colourful new ear piercings!
We expect to soon complete the first round of vaccinations on the does and then 2 – 6 weeks after the initial injection they will require a booster shot to maximize the efficacy of the immuno-contraceptive. The does don’t need to be sedated for the booster shot, so as long as we can re-locate them, the process will go quickly.
For more information on IC, please visit our FAQ page. If you have questions, or see a doe that is having an issue with her collar or ear, please email us at firstname.lastname@example.org.
If you’re out and about in the early hours of the morning in Oak Bay these days, you may spy a cluster of orange vests hard at work. It’s a significant moment for Oak Bay and the UWSS, as once again we’re out in the field – this time to administer an immuno-contraceptive vaccine (IC) to does in the Oak Bay area. Through our field research, we now know there are approximately 100 deer in Oak Bay. We estimate that around 60% – 70% are female, and we are aiming to vaccinate as many of these as we can before the rutting season begins in late October.
If you’ve seen the poster for our photo contest and you’re wondering why this small, non-profit organization fundraises, well…
Although a portion of the UWSS’s research in Oak Bay and Esquimalt is funded by the province and/or the district, much of our work is dependent on donations and the support of people, like you, in our community.
Fundraising and donations are important elements that allow us to (among many other things):
Raise public awareness on how to reduce human-deer conflict,
Provide over 1,500 “Caution Expect Deer” signs and;
Expand on our cutting-edge research.
One fun way you can get involved is by entering our first ever photo contest! Whether a seasoned shutterbug or new behind the camera, we want to see the natural world through your eyes.
Yes, the UWSS may be currently focused on urban deer, but we are the Urban Wildlife stewardship society and care about all creatures.
This philosophy is personified by our very own lead scientist Dr. Jason Fisher, who was featured in a recent Oak Bay News article on the importance of wildlife corridors that connect protected areas. Jason supervised the research of UVic PhD graduate Frances Stewart as she tracked 10 fishers using biologging technology.
Sound familiar? While the study was based in the Beaver Hills biosphere of Alberta, the fishers apparently share some travelling habits of Oak Bay’s indigenous deer.But the corridors for deer are often busy roads and crossing from one area to another can be treacherous.
Fortunately, if people are driving the speed limit (or slower, in the areas where they expect deer) and scanning ahead, the chances of an accident are greatly reduced. From fishers to deer, let’s keep our wildlife safe!
Debbie Warren, Senior Engineering Project Manager (and resident of Oak Bay) presents $750 each to the Oak Bay Green Committee’s Felicity Bradley and Pamela Mountjoy of the Urban Wildlife Stewardship Society on behalf of Coun. Eric Zhelka who won the donation at the AVICC, alongside Mayor Kevin Murdoch. (Courtesy Eric Zhelka)
Councillor Zhelka has always supported the Urban Wildlife Stewardship Society and the important research that they are conducting in Oak Bay. He says that both the UWSS and the OBGS are “groups of volunteers that do a great deal of unsung work, that, thanks to Fortis BC, we will be able to bring to light”.
The UWSS would very much like to thank Councillor Zhelka and FortisBC for this thoughtful donation that will help substantially with the current Oak Bay research and immuno-contraception project.
Starting in late summer 2019, we’re going to start administering immunocontraceptive (IC) to female deer in Oak Bay. To ensure that we can reach and treat as many deer as possible, we need access to yards—both front and back.
It’s been awhile since we last posted – it’s been busy!
Since January, our Project Manager, Sandra Frey, along with data analyst Joanna Burger, and our lead scientist Dr. Jason Fisher, finalized a Preliminary Progress Report as required by the Province of BC and presented it to Oak Bay Council on February 19, for subsequent submission to the Province.
What’s the bottom line?
Based on the data from August 2018, there are between 72 – 128 deer in Oak Bay, with a 95% confidence interval. This is a very precise number and will likely be narrowed even more as more data is analyzed.
We’ve also learned that the deer population is not distributed evenly throughout Oak Bay, with the highest concentrations in the Uplands, around the golf courses, and near Oliver and Brighton Streets.
The cutting-edge research and statistical techniques being used in the Oak Bay/Provincial/UWSS Research Project are providing important insights into Oak Bay’s deer population that will inform effective management strategies in the future. For instance, some residents estimated the number of deer to be much higher, often between 400 – 1000….we can now say conclusively, based on the scientific evidence, that the median number of deer in Oak Bay is actually … 97.
It’s important to remember that if you are seeing multiple deer, you are likely seeing the same deer multiple times, rather than multiple deer one time each!
We share this land not only with native wildlife but also with the Indigenous peoples that reside here. But more than this, the deer around Kimberly, BC don’t belong to the people living in Kimberly, BC. Nor do the deer living in Oak Bay belong to the people of Oak Bay. Wildlife is regulated by and actually belong to all the people of British Columbia—not the people amongst which they happen to reside. So then how do we strike balance between the needs of landowners, wildlife, and the First Nations that all coexist here?
Firstly, we need to find a management strategy that is scientifically sound and endorsed by the Province of BC. That means that each and every management plan needs to pass scientific review at the municipal and provincial level. Without provincial approval, no management action can take place. These decisions cannot be made by a municipality for their residents alone, because wildlife does not belong to the municipality.
Secondly, we need to balance diverse perspectives on the value of wildlife both within and outside of urban settings. All perspectives have value, from those that would like to see deer removed from an urban setting through to those that feel that we must coexist with native species within their indigenous habitats. These are the diverse perspectives of landowners, renters, professionals, stay-at-home parents, island-born, immigrants, community groups, NGOs and the First Nations whose unceded traditional lands we all share.
The Songhees First Nation claims Oak Bay as part of their traditional territory, and so any management plan needs to have their explicit consent and support before the Province will agree to grant a permit. In the spirit of Reconciliation, we fully support the partnership with the Songhees First Nation and are conducting this research with their support. As peoples who have inhabited these lands for thousands of years, and who have coexisted with indigenous wildlife for the entirety of their history, it is understandable that they are opposed to a cull on their traditional lands.
Since no management permit can be issued without the support of the Province and First Nations, we are working to find solutions for management that satisfy the requirements of all the peoples of Greater Victoria. That means accepting that a cull is not a plausible management solution, and moving ahead with other non-lethal means of control that balance the needs of all us.
Your municipal government usually has some budgetary expenses related to urban wildlife management. So why not just get rid of the need for this repeated cost by eradicating deer from within municipal boundaries?
Well, it’s not that simple. The BC Provincial Veterinarian explains that for culling to be effective, it must occur annually. When the population is reduced quickly through a substantial cull, competition for mates among deer is reduced, birth rates are higher and the population grows faster. Similarly, with fewer animals competing for food and territories, the body condition of remaining deer improves, also resulting in higher birth rates and hence quicker population growth.
But in addition to the decrease in competition for mates and food resulting in fast population growth from the deer that remain, there’s another problem that can contribute to a quickly increasing deer population—immigration from areas outside the cull.
The sudden “void” in the population that is created by a cull provides opportunities for deer in adjacent regions to immigrate into the newly created competition-free landscape of abundant food. And so, the population once again grows quickly.
So, for culling to be an effective management tool, it would need to be done annually, and it’s not cheap. The CRD spent $272,000 in the 2014/15 fiscal year, with $50,000 spent on the 2015 cull in Oak Bay alone—for the cull of only 11 deer. It’s going to get very costly, very quickly, if a significant number of deer would need to be culled annually.
As an alternative, we’re assessing whether birth control (that’s right, birth control—known as immunocontraception or IC) may be a more cost-effective alternative. Getting those deer on birth control will decrease a population gradually, avoiding the fast population growth rates that a cull can produce. For the capture and collaring of the deer in this study, to date, the cost of the vet’s time on this project has been only $6,000 for over 2.5 times the number of deer handled in the 2015 cull. So for the same amount spent in 2015, we’ll be able to IC a very large proportion of the deer population—so we expect this to be much more effective than that cull was. As a bonus, we expect that IC won’t need to be repeated annually—we’re still trying to figure out how often it will need to be administered, but projected cost savings—to achieve the same goals as a cull, without the problems with rebound population growth—are significant.