Research update: September/October 2016

The prairie grasses are in flower on the green roofs - it must be fall!

The prairie grasses are in flower on the green roofs – it must be fall!

Fall is here once again and the plants on the green roofs are getting ready to face another tough winter. I, on the other hand, am getting ready to face a winter of lab work, data analysis, and writing. I’m happy to say that over the past couple months I’ve finished collecting all my data from my outdoor green roof experiments. After carrying out some experiments for 4 years, it was kind of bitter-sweet to see this step come to an end.

The nodding onion plants that had pollinators on them last month are now bursting with seeds. I can't wait to see if there are lots of new seedlings next year!

The nodding onion plants that had pollinators on them last month are now bursting with seeds. I can’t wait to see if there are lots of new seedlings next year!

I finished collecting all of my temperature probes in September.

I finished collecting all of my temperature probes in September.

I've collected a lot of temperature data from the green roofs over the past 2 years. Now I'm trying to make sense of the trends that I've found.

I’ve collected a lot of temperature data from the green roofs over the past 2 years. Now I’m trying to make sense of the trends that I’ve found.

 

 

 

 

 

 

 

 

 

 

In September, I collected all of the remaining temperature probes from my plots. This was a little tricky in some plots where the vegetation is now almost 5 feet tall! I compiled all the data, which was actually a big task – I’ve been recording temperature every 3 hours for over 2 years on over 60 probes.I’ve started to look at trends in these data and so far it looks like there is little difference between my different treatments in the winter but larger differences between the native prairie plants and the non-native succulent sedum plants during the summer. As you might expect, the succulent plants provide more cover and shade, so they tend to keep the soil cooler than the soil that’s exposed to the full-sun conditions. I’ll spend more time analyzing these data over the winter and will be writing my conclusions in my dissertation this spring.

Finding the temperature probes - only about the size of a dime - was a little tough in some of my plots where the vegetation was so tall. Eventually, I found them all!

Finding the temperature probes – only about the size of a dime – was a little tough in some of my plots where the vegetation was so tall. Eventually, I found them all!

I'm growing quite a collection of name tags from guest lectures and speaker events. It's always fun to talk to people about my research.

I’m growing quite a collection of name tags from guest lectures and speaker events. It’s always fun to talk to people about my research.

I was also invited to give a couple guest-lectures in October, including at an Economic Botany class at the Morton Arboretum and during a tour of the Chicago Botanic Garden by the Northwestern University Women’s Board. It’s always fun to teach people about green roofs, urban ecology, and the unique opportunities I have as a graduate researcher in a joint program between two remarkable institutions.

The prickly pear cactus is one of the only native species that survived two harsh years in the green roof trays.

The prickly pear cactus is one of the only native species that survived two harsh years in the green roof trays.

Fall has arrived on the green roofs! I'm happy that my research plots are really starting to look like prairies.

Fall has arrived on the green roofs! I’m happy that my research plots are really starting to look like prairies.

Other than finishing field work and guest lectures, I’ve mostly been organizing and analyzing data, mentoring students in an online program called Planting Science, preparing job applications, and getting lab work done (when all the equipment has been working… which seems to be a rare event). I finished extracting the DNA from all of my samples and have very slowly been making progress with my paternity study. I’m hoping that next month will be a big one for lab work success. I’ve got my fingers crossed!

 

The green roof trays are ready for another winter as the colors of fall creep in.

The green roof trays are ready for another winter as the colors of fall creep in.

Big bluestem is flowering in my green roof plots. See you next spring, prairie plants!

Big bluestem grass is flowering in my green roof plots. See you next spring, prairie plants!

Finally, I’ve been working on writing a short article about a unique plant that found its way to a green roof in London. The story should be published next month – stay tuned!

 

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Research update: June/July 2016

Well, as you can see, my “monthly” research updates are a little bit behind and this post is extra long. It seems like with all the work to be done outdoors and out of town, it’s been hard to sit down to write about it all. But as I look back at June and July it’s exciting to remember all that has happened.

Ratibida pinnata (gray-headed coneflower) blooms beautifully in one of my green roof plots.

Ratibida pinnata (gray-headed coneflower) blooms beautifully in one of my green roof plots.

First, I am happy to say that an article I wrote about biodiversity on green roofs was published in Wild Seed Magazine, a publication from the Maine-based non-profit Wild Seed Project. I won’t say too much about the article, other than you should click HERE to read it and if you should click on the link above if you want to get a copy of the whole magazine (which includes an article from the amazing naturalist Doug Tallamy and is really good).

The Dalea purpurea (purple prairie clover) was blooming on the green roofs in June and attracting pollinators!

The Dalea purpurea (purple prairie clover) was blooming on the green roofs in June and attracting pollinators!

As far as research goes, June started out with data collection on the green roofs. I’m continuing to measure the plants in the prairie mixes that I planted back in 2012 and at the beginning of the summer, things looked a little sparse but promising. After a pretty rainy summer, some of the same plots are actually pretty lush and there are many species of plants that are flowering in beautiful displays of yellow, white, and purple flowers. It’s impossible to capture them all with my cell phone’s camera, but believe me when I tell you that they are lots of pollinators coming to visit my plants too! When I’m back to more indoor work in the fall I’ll analyze the data to look for significant patterns. So far, it looks like the species from the prairies that are most similar to green roofs are the ones that are growing the best. It’s really exciting for me to know that when I stop collecting the data for this experiment, there will be some little prairies on the green roofs for years to come.

I'm continuing to measure the amount of water that the different plant combinations capture and hold throughout the day.

I’m continuing to measure the amount of water that the different plant combinations capture and hold throughout the day.

I continue to measure the growth of the plants in my green roof prairie plots that I originally planted back in 2012.

I continue to measure the growth of the plants in my green roof prairie plots that I originally planted back in 2012.

My experiment measuring water capture continues as does my collection of weeds from the green roof trays to determine how good the prairie plants are at resisting weeds compared to succulent plants. Everything is going well with those experiments except for the fact that a surprise thunderstorm messed up some of my data and I have to do one part of the experiment over again. I’m not happy about that, but that’s just how botanical research goes sometimes. I’ve got my fingers crossed for some rain-free days in early August.

Weighing the weeds continues. So far it looks like the succulent Sedum plants are the best at preventing weeds.

Weighing the weeds continues. So far it looks like the succulent Sedum plants are the best at preventing weeds.

 

Back to the ground - I finally found the Penstemon plants I was looking for in the shortgrass prairies. It's fun to go back to the sites that I'm trying to replicate on the roof and appreciate how special these habitats are.

Back to the ground – I finally found the Penstemon plants I was looking for in the shortgrass prairies. It’s fun to go back to the sites that I’m trying to replicate on the roof and appreciate how special these habitats are.

Pollinators are visiting my plants on the green roofs! It's exciting to see evidence of the ecological relationships that I was hoping to support.

Pollinators are visiting my plants on the green roofs! It’s exciting to see evidence of the ecological relationships that I was hoping to support.

In addition to the green roofs, I also went to a couple prairie remnants southwest of Chicago to collect some plant tissue. I’ve been putting my lab work on pause for the summer, but if you remember, one of my experiments is to measure pollen movement between green roofs using a paternity study. Well, I’m finding that it’s really hard to distinguish one “dad” plant from another because the dads have very similar DNA. I think this is because the nursery where I got the experimental plants wasn’t using a diverse mix of parental plants but I want to make sure that the plants you’d find in nature would actually have more diversity in their DNA. To do this, I need DNA from plants in their natural habitat – and this is what led me to collect leaves from the shortgrass prairies on a steamy Friday in June. I was hoping to find three whole fields full of my target species of Penstemon plants but, after hours of searching, I only found two small patches. For now, I’ve collected the leaf tissue and it’s drying in the lab. I’ll get back to that when it’s time to get back to the lab in the fall.

Lespedeza capitata (roundhead bushclover) blooms beautifully in one of my plots on a green roof.

Lespedeza capitata (roundhead bushclover) blooms beautifully in one of my plots on a green roof.

It’s actually hard to believe that I was able to collect so many data when I look at all the times I was out of town, talking about research rather than actually conducting it. But through these experiences, I met a lot of wonderful people that are also interested in plant and animal conservation, urban ecology, and science education & communication – my favorite things! At the beginning of June, I was thrilled to be selected as a participant in ComSciCon in Cambridge, MA. This is a graduate student-run conference for other graduate students in science who are interested in engaging with non-scientific audiences. The fellow attendees I met are involved in some amazing endeavors, including documentary filmmaking, graphic design, afterschool programs, and policy advocacy. I could go on for many paragraphs about how awesome these folks were, but I’ll just summarize by saying that I was truly inspired. I started writing a piece about green roofs to be submitted to a children’s magazine while I was there and I’m hoping to get it published this year – stay tuned.

After my trip to the East coast, I headed out west to Colorado Spring to participate as a botanist mentor in a workshop called Digging Deeper. As a mentor, I got to meet high school teachers that teach their students about plants together with plant scientists in a program called Planting Science. As a previous high school science teacher and current scientist, it was really fun to try and figure out the best ways to teach teenagers about plants in an exciting and engaging way. In the fall, I’ll be a mentor to a couple student groups and through video conferences and email messages, we’ll help them design their own experiments to learn about botany – how cool is that?

A spontaneous Penstemon plant (the one I'm studying in a different experiment) has germinated and flowered in my experimental green roof trays. I'm glad to see that this native species does so well on green roofs.

A spontaneous Penstemon plant (the one I’m studying in a different experiment) has germinated and flowered in my experimental green roof trays. I’m glad to see that this native species does so well on green roofs.

I had a couple more trips a little closer to home too. The first one was to Michigan to share my research and meet the new cohort of Northwestern University Presidential Fellows. Wow. More amazing people doing some fascinating research from applications of nanofluids and deciphering the genetic code to impacts of affirmative action on hiring practices in the NFL. The second trip was to Wisconsin to give a presentation at the North American Congress of the Society for Conservation Biology. I’m pleased that my presentation about my green roof research was well received and I even got to meet some other professional from the Chicago area that work with trees, wildlife, and the human-nature connection. As I finish the last year of data collection for my dissertation, it’s really helpful to start thinking more about the broad applications of my research and how the things I’ve learned so far might be applied to other fields when graduate school is complete.

As a final note, in addition to the research and trips, I also got married in July! Did you notice the new name of the site? I may have a new name but the research is still pretty much the same – I don’t think the plants noticed at all!

Up next month: Field work, lab work, data analysis, writing, and even maybe a TV appearance!

 

 

Research update: May 2016

May is over already? Where does the time go? It seems to just fly by in the spring and there’s a lot of research to be done.

In May, I started measuring the plants from the green roof trays again. Despite a lot of rain, many of the plants were gone!

In May, I started measuring the plants from the green roof trays again. Despite a lot of rain, many of the plants were gone!

Now that my experimental plots look a little more like prairies, the temperature probes are more difficult to find.

Now that my experimental plots look a little more like prairies, the temperature probes are more difficult to find.

At the risk of sounding like a broken record, yes, there was a lot to do in the lab in May. I’m still trying to complete a paternity test of about 600 baby plants and, wouldn’t you know, things that were working just fine a few months ago have stopped working and I can’t seem to figure out why. My advisor says, “welcome to the lab,” meaning, that sometimes this is just the ways things go. One day, things work and the next they don’t. So I’ve been spending a lot of time troubleshooting, collecting little bits of data and troubleshooting again. I am making tiny baby steps of progress in the lab but had hoped to be flying through the data collection process by now so it’s a little frustrating. In any case, it’s almost time for a break in the lab because summer means lots to do on the green roofs.

This little prickly-pear cactus has some new growth. Those "baby cacti" are so cute, right?

This little prickly-pear cactus has some new growth. Those “baby cacti” are so cute, right?

Some of my native primrose plants were pollinated and seeds germinated. These new babies weren't planted by me!

Some of my native primrose plants were pollinated and seeds germinated. These new babies weren’t planted by me!

In May, I also finished collecting the temperature data from the green roofs and at the end of the month, I started measuring some of the plants again. There is some good news and bad news here. The good news is that many of the plants are still alive – for some species, this means that they’ve made it for almost 4 years now. Other plants are reproducing and there are new little seedlings popping up, so that’s exciting. The bad news is that it looks like many of the plants from my green roof trays that were doing so well last summer haven’t returned. I’m not sure if they were still dormant when I checked in on them or if they’re dead. I’ll return each month over the summer so I should know for sure in a couple weeks.

 

 

My strip of experimental prairie is slowly starting to come back. The plants are still pretty short. Let's see how this looks by the end of summer.

My strip of experimental prairie is slowly starting to come back. The plants are still pretty short. Let’s see how this looks by the end of summer.

As things started heating up on the roofs, my science communication schedule seemed to be getting hot too. I gave a presentation at the beautiful Lurie Garden in Millennium Park in Chicago. I was also the curator of a Twitter account called BioTweeps – this is where a different biologist interacts with followers and discusses their science. It was a bit overwhelming since BioTweeps has thousands of followers, but it was fun too! This past month I also continued taking a science writing class about communicating complex topics to non-scientists through newspaper and magazine articles (online versions too). I got to meet the editors of Discover Magazine and Audubon Magazine, which was a really great experience. I’m hoping that one of the articles I started writing during the course will be published and the editor of Audubon said she’s interested, so I’m keeping my fingers crossed and trying to keep my editing fingers typing. If it gets published somewhere, I’ll definitely include an update here.

Next month looks like lots more work on the green roofs (June is the best month for measuring the plants!) and a couple interesting science communication workshops. See you then!

In between spring thunderstorms, I collect my temperature probes from the green roofs and see how cold things got over the winter.

In between spring thunderstorms, I collect my temperature probes from the green roofs and see how cold things got over the winter.

Research update: February/March 2016

Could it be? Is spring on its way? After a lot of working in the last this past February and March, it sure sounds nice to be able to work outside again in the near future!

A kildeer has built its nest on the green roof at the Chicago Botanic Garden. This has happened every year and it's nice to see a sign that spring is here!

A killdeer has built its nest on the green roof at the Chicago Botanic Garden. This has happened every year and it’s nice to see a sign that spring is here once again!

Just a few of the many test tubes filled with plant DNA that I've been working with the past two months.

Just a few of the many test tubes filled with plant DNA that I’ve been working with the past two months.

The winter to spring transition months included a lot of test tubes! I’m happy to report that I finally finished extracting the DNA from all of my little seedlings. That’s almost 550 samples. Phew! It took a lot longer than I expected just to perfect the technique of getting DNA out of such little bits of plant tissue but I was able to get the procedure streamlined enough and finally finished. The next step was to start the DNA amplification – a process called PCR that makes many copies of the DNA so I can work with it in the future. I need to amplify 9 sections of DNA in each of my 550 samples. If you’re doing the math at home, that’s nearly 5,000 reactions. Luckily, there is a machine that helps me out with making temperature changes so the reactions can occur without my constant guidance but I still have the fun task of loading the test tubes with the correct materials – yep, all 5000 combinations. So that’s been most of my March and the project will continue into the future. By the end of the month I was able to test some of the PCR samples and see if they worked. I’m happy to say that I’ve got mostly positive results so far. There are still a few kinks to be worked out but at least I know that things are moving forward in the right direction.

The 2015 seeds have germinated. The seedlings are in these small tubes and are kept frozen until I can find the time to extract their DNA this spring.

The 2015 seeds have germinated. The seedlings are in these small tubes and are kept frozen until I can find the time to extract their DNA this spring.

Moving in the right direction is a good thing, especially in light of the fact that I’ve got another round of DNA extraction and amplification to go. I’ve just completed these steps with the seeds I collected at the end of the 2014 season. In March, I also collected the germinated seedlings from all of the 2015 seeds. The new little seedlings (only about half as many this time, thank goodness!) had finished getting as big as they were going to get in the incubators so I collected them in small test tubes and put them in a very cold freezer. In April or May I’ll start the DNA extraction procedure all over again with these new samples. Then more amplification…

Things are looking pretty dormant in my green roof plots. But I know my plants are there. Just wait a few months!

Things are looking pretty dormant in my green roof plots. But I know my plants are there. Just wait a few months!

As March came to a close, I ventured out to a couple of my roofs just to see if there were any signs of life. It was a pretty mild winter but it still looks too early for most of my little plants to start growing yet. I guess I was just getting a little hopeful – wishful thinking! I’m looking forward to getting out to all of my green roof sights again this spring and summer. It’s hard to believe (but kind of exciting too) that this will be the last summer of data collection for my dissertation research. In the future, I’m not sure what will happen to these plots that I’ve established, but I think at least some of them will be left alone and the plants will just do what plants do; grow, reproduce… hopefully survive for many generations. We’ll have to see. One thing I do know is that it’s going to be a busy summer.

 

By the end of March, a few signs of life started to appear in my green roof plots.

By the end of March, a few signs of life started to appear in my green roof plots.

My temperature probes have been recording data all winter long (hopefully). I'll collect them again this spring to see what happened on the roofs while I was inside staying warm.

My temperature probes (like this one taped to the roof) have been recording data all winter long (hopefully). I’ll collect them again this spring to see what happened on the roofs while I was inside staying warm.

In other fun news, my green roof children’s activity book has been featured, both on an industry website and in a non-profit magazine. My coauthor Olyssa and I were asked to write a little piece describing the unique features of our book for the international website greenroofs.com. Check out that story by clicking here. I was also interviewed by a reporter a couple months back (remember that photo shoot in December that I wrote about in my last post?) about the environmental education benefits of our book and a short piece was included in the Chicago Botanic Garden’s member magazine, Keep Growing. Check out that article by clicking here and going to page 74. We continue to have people download our free book and have recently even been asked to translate it into Dutch for a wider international audience. It’s great to know that people are enjoying the book and that our hard work is helping teach people about the benefits of green roofs!

Research update: October/November 2015

Fall was a time of big changes out on the Chicago green roofs. From summer temperatures to snow and beautiful blooming flowers to brown, dried grass, the plants changed almost daily on the roofs. Now they’re pretty much dormant and ready to face another cold winter.

The last of the fall flowers bloom on the green roofs in early October.

The last of the fall flowers bloom on the green roofs in early October.

The last of the wildflowers and grasses bloom on the green roofs in Chicago

The last of the wildflowers and grasses bloom on the green roofs in Chicago

As in previous years, this season was also a transition for me from outdoor data collection to indoor writing and lab work. I finished collecting the last of the temperature probes and finished the “checkups” on the green roofs. I recorded the temperatures and packed the probes back into their small water-tight bags and wished them good luck until I dig them up again in the spring. I made sure that all signs and little sticks I use for marking my sites were in the right place. I recorded all final observations and closed my notebook… for now.

 

 

 

All the fruits that I collected are carefully weighed on an electronic balance in the lab

All the fruits that I collected are carefully weighed on an electronic balance in the lab

In the lab, I cleaned and weighed the fruits that I had collected from the green roof and ground-level plants in one of my experiments. I then opened the fruits and carefully counted each little seed that was contained inside. These seeds are very tiny and have to be counted under a microscope. After the seeds were counted, I rinsed them off in a weak bleach solution to kill any fungus and put them on these little agar plates. The agar is a substance with the same texture as Jello that is able to hold moisture that the seeds can use later when they start to grow. I sealed up these agar plates with the seeds and put them in a dark refrigerator where they’ll stay for at least a couple months. Later, I hope I’ll get these seeds to grow so I can take a closer look at their DNA and see if there is pollen moving between plants on the green roof and plants on the ground.

As the season changed, it was also time to work on more writing. Yes, it turns out that scientists write a lot! I am currently working on writing the results of the experiment I completed when I was in Germany 2 years ago. It has taken a long time to look at all the data I collected very carefully. After some long days in the library reading, writing, reading, and writing some more, I am beginning to explain some of the patterns that I see in my data. This is a long process and I still have more writing to do this winter but I hope that soon I’ll be able to publish these results and share them with my fellow botanists and other scientists that are also interested in the ecology of green roofs.

I spend long hours in the library reading and writing about the results of my experiments.

I spend long hours in the library reading and writing about the results of my experiments.

Research update: September 2015

It’s fall once again in Chicago and you can really begin to tell on the green roofs. They’re still looking good, but most of the plants are starting to turn brown, shed their seeds and get ready for their long, cold winter up on the rooftops. It almost getting too chilly for this roof top botanist to enjoy collecting data outdoors so it’s a good thing that the work is starting to gradually move indoors.

It's fall on the green roofs. The plants aren't dead, they're just beginning to go dormant for the winter.

It’s fall on the green roofs. The plants aren’t dead, they’re just beginning to go dormant for the winter.

To start off the month, I spent a weekend in Michigan with the other Northwestern University Presidential Fellows. This group of outstanding grad students from a wide variety of departments in the graduate school is doing some amazing research! As one of the fellows, I got to share my research with the others in a relatively informal presentation. I really liked learning about what other graduate researchers are doing and I loved getting to answer some difficult questions about the motivations behind my own work. I’m looking forward to more presentations with this group in the future during my next 2 years as a fellow.

In a more formal setting, I also shared some aspect of my ecological research through a new course I’m teaching. Twice a week, 45 undergraduate students at Loyola University and I learn together about the environmental issues that impact us and the world we live in. As a former high school teacher and undergraduate instructor, this is something that I really enjoy doing! I get to teach the students a little bit about the ecological benefits of green roofs but also learn about some of the bigger picture concepts, like the importance of water conservation, right along with them. With a motivated and enthusiastic group of students, it’s looking to be a pretty good semester!

As I take a last look at my green roof plots this fall, I make a note of any new growth. This little native cactus started off with just one pad (the one on the left) and now it has two. Good luck over the winter little guy!

As I take a last look at my green roof plots this fall, I make a note of any new growth. This little native cactus started off with just one pad (the one on the left) and now it has two. Good luck over the winter little guy!

In terms of research, I started to conduct my last “checkups” on the green roofs. These checkups involve collecting data from the temperature probes that I have buried there and resetting the probes to collect data all throughout the winter. I also collect all remaining weeds from the green roof trays so I can clean, dry, and weigh them back at the lab over the winter. I fix anything that’s broken and make any final notes about the plants. After the final checkups at my 5 research sites, I won’t be back until April or May. So I cross my fingers that all the plants and probes are still there when I come back in the spring.

As the outdoor work winds down, the indoor lab work and writing start to take up more of my time. I’m now working on figuring out a new procedure for getting as much DNA as possible out of the tiny little seedlings that I was growing in the spring. In September I tried two new procedures and unfortunately neither of them really worked. So now it’s time to try procedure #3 – hopefully I’ll have some good successes to report in next month’s research update. Wish me (and the little seedlings) luck!

Small tubes full of plant tissue heat up as I try to develop new methods for getting DNA out of tiny little seedlings.

Small tubes full of plant tissue heat up as I try to develop new methods for getting DNA out of tiny little seedlings.

Research update: August 2015

Once again, August was a busy month, filled with field work, lab work and even a conference! It’s fun to look back and see what I was able to accomplish.

One lonely pinnate prairie coneflower blooms in my green roof prairie plot. It's trying to attract some pollinators - go little coneflower, go!

One lonely pinnate prairie coneflower blooms in my green roof prairie plot. It’s trying to attract some pollinators – go little coneflower, go!

The month started with completion of the vegetation surveys that I was conducting on 3 of the green roofs in the Chicago area. These vegetation surveys allow me to measure the height, coverage and reproduction ability of the various plants that I planted on the green roof. With the rainy summer we’ve been having in Chicago, most of the plants are doing quite well and my little plots continue to look like mini-prairies. Originally, August was supposed to be the last time that I had to take these measurements. But my mini-prairies are looking so good (and I’m such a botanist!) that I want to come back next year and measure them again. We’ll see if that’s still the plan come 2016.

Funny hat? Socks hiked up over my pant legs? It must be time for data collection in the prairie!

Funny hat? Socks hiked up over my pant legs? It must be time for data collection in the prairie!

Speaking of prairies, I also visited an actual prairie for my research (on the ground this time, as opposed to a rooftop). Two interns from the Chicago Botanic Garden and I took a trip to a large prairie in central Illinois to collect leaf tissue from the same species of plant that I’m studying on the roofs. I am looking at how pollen movement in this species can help increase the genetic diversity of green roof populations. But I wanted to know what the genetic diversity of this species is like in natural populations, in real prairies. So we collected leaf tissue from a natural population, extracted the DNA from the leaf cells, and are now working in the lab to measure the diversity. This is a work in progress, so stay tuned for the results. If anything, it was neat to see the plant species I’m working with in its natural habitat.

Interns from the Chicago Botanic Garden help me collect leaf samples from the natural prairie population.

Interns from the Chicago Botanic Garden help me collect leaf samples from the natural prairie population.

In addition to collecting lots of data, I was also fortunate to be asked to present some of the overall findings of my research so far. I’m still working on collecting some more data from internet sources and analyzing my results but I am beginning to find some trends with the data that I collected back on the green roofs in Germany in 2013. It seems like there are very few patterns that predict which plant species colonize green roofs and survive on them over time. It looks like each green roof is a unique place with its own community of plants and animals that live there. I was able to share these results (and others) at a special green roof session of the Ecological Society of America’s annual meeting in Baltimore, MD. And not only did I get to present my research, but I got to attend lectures and workshops where I learned about other people’s research too. It was a busy week in Baltimore and even though I came back tired, I was also inspired and excited to keep making discoveries with my own research.

The hotel at the Baltimore Convention Center had a green roof. A great inspiration view as I prepared to give a presentation about my green roof research at the ESA conference.

The hotel at the Baltimore Convention Center had a green roof. A great inspiration view as I prepared to give a presentation about my green roof research at the ESA conference.

And finally, in August I started to work in the lab again to continue work that I’ve been doing for about a year now. The lab was super busy with summer interns but toward the end of the month things quieted down a bit and I could claim some work space back. I’m ready to continue the work I was doing back in the spring. It’s time to find out if I can determine the father plants of all the seeds that I collected last fall and grew up into little seedlings over the winter. It’s going to be a lot of work but I’m looking forward to being a bit of a botanical detective!