Interview: Tropical paleontology and being #BlackInNature | NOVA



NatureNature

Paleobiologist Melissa Kemp says people have been introducing species to the Caribbean since lengthy earlier than Columbus arrived—and he or she’s serving to piece that historical past collectively.

Melissa Kemp with a Puerto Rican crown-giant anole (Anolis cuvieri). Picture courtesy of Melissa Kemp

Paleobiologist Melissa Kemp spends quite a lot of time overturning assumptions. Her excavations don’t contain digging bleached bones out of windswept deserts, however in search of partially preserved lizard fossils in darkish, dank jungle caves. Final month, she printed a research monitoring human-driven species introduction within the Caribbean by the area’s 7,000 years of human habitation—difficult the concept that “restoring” Caribbean biodiversity means taking it again to the place it was earlier than Christopher Columbus arrived within the so-called New World round 530 years in the past. 

Kemp, who runs a lab and teaches integrative biology on the College of Texas at Austin, opened up on Twitter final week about her expertise as a Black scientist and outdoorswoman, underneath the hashtag #BlackInNature—as a part of persevering with conversations about race in America following the killings of Ahmaud Arbery, Breonna Taylor, and George Floyd, and the harassment of Black birder Christian Cooper. She spoke with NOVA about decolonizing environmental restoration, tropical fossil quirks, and the thrill of time exterior.

Alissa Greenberg: Let’s begin with the hashtag #BlackInNature, which you’ve utilized in tweeting about your love of spending time exterior. What’s vital about that point in nature for you? What do you’re feeling prefer it does for you bodily and emotionally?

Melissa Kemp: I really like spending time in nature. I reside in Austin now, in a way more city surroundings than I used to be raised in. However it’s nonetheless very rejuvenating simply to go exterior and have a look at the sky, have a look at the vegetation, discover animals on the property and simply see that there is life there. Even once I’m doing my area analysis, there’s bursts of energetic work the place we’re mountaineering by the rainforest making an attempt to get to our website. However then after we get there, it may be very gradual. The work that we’re doing could be very meditative. So nature could be very therapeutic for me. It’s performed a vital position for me personally and professionally.

Significantly interested by the COVID disaster, so many individuals are looking for solace in nature throughout this time. And I feel, now greater than ever, it actually must be accessible to everybody, with the whole lot that is occurring—not solely to make discoveries in and find out about, however simply to take pleasure in and to really feel snug having fun with it.

The hashtag #BlackInNature was used to have fun Black nature fanatics on Might 31, the primary day of #BlackBirdersWeek.

AG: You mentioned in a tweet that you just grew up exploring exterior on land your great-great-great-grandfather purchased after emancipation. So your loved ones has been there ever since?

MK: Sure. I grew up in Maryland, exterior of Baltimore. Not likely that removed from any metropolis, however very, very rural and located close to a state park. And due to that, I had quite a lot of nature at my disposal. I grew up listening to tales. My mother and my aunts and uncles would inform tales about how they might exit within the woods and discover. So I all the time had a connection to nature. I by no means questioned that connection as a result of I felt like I lived in it—even simply realizing that my household had been there for therefore lengthy. The church cemetery was throughout the highway, so I might go within the woods and see the graves of my ancestors.

AG: You additionally talked about in that very same tweet that your grandmother taught you to mark recapture, the biology approach to assist estimate animal populations.

MK: Particularly throughout the summers when my cousins can be there, and my grandmother had all these youngsters to take care of, we’d go round in search of animals. We all the time discovered turtles, japanese field turtles. We might write our initials on them in nail polish, which we actually in all probability should not have been doing, and handle them for an evening, then launch them. She would all the time inform us, “Search for your turtles,” and we’d discover them once more. Generally years later, we’d discover a turtle and be like, “Wait, that is MK, that’s my turtle!” She actually inspired us to only go on the market and discover. I feel it actually rubbed off on me.

A portray by Melissa Kemp of a part of her household’s property. Picture courtesy of Melissa Kemp

AG: How did you find yourself working in integrative biology? And why did you select to deal with islands?

MK: I did not come into science in probably the most conventional means. Once I was rising up, I all the time thought I used to be going to be an artist. I went to artwork magnet faculties as a child and educated at a very excessive stage, largely portray and drawing. I nonetheless strategy science in a means that’s just like how I strategy artwork. This diligence of engaged on one thing for a really very long time and likewise being open to suggestions from others to make the work higher. Artwork is a really iterative course of. It will probably take years earlier than a bit is finished, and it isn’t a dash, it is a marathon. I feel quite a lot of the identical ideas apply to science as properly. And my eye for element possibly helps me discover nuances in supplies I have a look at. Once I’m working with fossils I am continuously completely different shapes and in search of variations in buildings of the completely different fossils I am dealing with.

I research how biodiversity in tropical areas originates each by processes of extinction and diversification, in addition to colonization. Significantly, I am enthusiastic about how modifications within the surroundings then impression the completely different communities of organisms that now we have. I am enthusiastic about these previous cases of change that we will see by the fossil document, as a result of it is the important thing to actually understanding the biodiversity that now we have as we speak, but additionally helps us perceive how biodiversity would possibly change sooner or later.

Islands specifically are actually attention-grabbing biologically, and there’s been a wealth of research of numerous life-forms of islands, notably lizards. However we do not actually have as a lot literature on fossil occurrences of lizards. That is why I began specializing in islands, as a result of we actually haven’t got an intensive understanding of how we acquired to current day biodiversity.

Human-driven biodiversity change within the Caribbean didn’t begin in 1492. There’s a 7,000-year legacy of change.

AG: You lately printed a paper that delves fairly deeply into that matter. Are you able to summarize what you have been in search of and what you discovered?

MK: We have been actually enthusiastic about investigating how people have modified the biota of the Caribbean, notably by which species they’ve launched. This paper is actually interested by what we’re including to the islands—and what are the impacts of what we’re including? How do these introductions scale throughout time? We developed a database of species introductions by going by the archaeological literature, in addition to the paleontological literature, to get a way of what we find out about species introductions, after which additionally what we do not know.

I feel one of many largest takeaways is the truth that people have been engineering the panorama for millennia, notably these locations that we consider as just lately perturbed. Human-driven biodiversity change within the Caribbean didn’t begin in 1492. There’s a 7,000-year legacy of change. We now have these phrases that I don’t suppose are consultant of the biodiversity of the Caribbean, like “New World.” They’re actually phrases steeped in European colonization, referring again to the Caribbean as one thing being “new” to Europeans, when individuals had been dwelling there for a really, very very long time.

Once we take into consideration what the Caribbean used to appear like, should you ask any individual on the road that query, they’re in all probability going to consider earlier than Columbus and Europeans got here. And we’re undoubtedly enthusiastic about that interval, very a lot so. However we’re additionally enthusiastic about what it seemed like earlier than any people arrived. And we actually need to acknowledge how Indigenous teams within the Caribbean moved round, what species they have been bringing, how they have been utilizing species, and the way their manipulation of the panorama modified biodiversity within the Caribbean.

AG: Why is it vital to ask these questions? Not simply culturally but additionally scientifically?

MK: We now have to be lifelike about what’s really possible. The perfect restoration goal in all probability within the head of lots of people within the public can be what the surroundings was like earlier than we got here and messed all of it up. However it’s not a sensible goal, partially as a result of we have misplaced so many species that have been within the panorama earlier than people arrived.

What we see in quite a lot of techniques after an extinction of 1 animal is that you’ve an extinction cascade the place different issues go extinct as a result of organisms are interconnected with each other. They do not exist in silos within the panorama. So, if we take away a pollinator, the vegetation that have been pollinated by it may additionally endure decline. They could additionally go extinct. And which may have an effect on soil erosion, for instance. Possibly their roots supplied vital construction for soil. And should you’re eroding soil, possibly you’re interrupting one thing else’s habitat. So we’d need to restore this method in order that that plant is there, and in order that that plant is pollinated by an organism within the system—however it may not be doable to do all of these issues. So, now we have to consider, what’s it that we hope to perform by restoration? 

Melissa Kemp excavating a cave website on the island of Marie-Galante, Guadeloupe. Picture courtesty of Melissa Kemp 

Possibly one other takeaway from our analysis can be interested by introductions of species and what they imply biologically. There’s quite a lot of completely different terminologies that we use for launched species—I feel one of the widespread one is “invasive,” as a result of we frequently take into consideration the unfavorable impacts of species introductions. Actually there have been cases the place species had very, very unfavorable impacts, however then there are additionally cases the place species are not having a unfavorable impression on the surroundings and possibly are literally doing good issues for these ecosystems.

The Caribbean had quite a lot of endemic mammals previous to human colonization. There have been monkeys and quite a lot of actually distinctive mammals—like these animals known as Nesophontes, that are these shrewlike insectivores which might be now not there. We predict that quite a lot of them have been actually vital pollinators within the ecosystem that have been then misplaced. However with the introduction of recent birds to the Caribbean, for instance, it is doable that a few of that lack of pollinators, that ecological service, could have been restored.

AG: I’ve learn that paleontology within the tropics is especially troublesome. What makes it so laborious?

MK: The surroundings of the tropics isn’t actually conducive to fossilization processes. You want steady temperatures, ideally, chilly temperatures and dry climate, to get good fossilization—and issues lined up actually rapidly. The tropics are very popular and really humid. It is simply so scorching, it is so moist, that it will erode away in a short time in comparison with one thing that is within the Arctic, for instance. There’s way more fast disintegration when it is scorching and humid. Microbes breaking issues down is definitely a part of it. Additionally publicity to UV mild—there’s bodily injury being accomplished to the fabric in addition to organic injury.

So we do not have quite a lot of fossilization within the tropics, however we do have some, notably in environments the place the fabric is considerably shielded. Virtually all the work that I conduct is finished in caves. We’re going by usually closely forested areas, in limestone landscapes the place the humidity and precipitation cuts by the limestone and creates cavities. Normally supplies get in there by water movement—when, as an example, there is a hurricane.

Plenty of it is extremely fragmented bones. We’re not getting a full lizard, with the pores and skin eliminated and the bones in excellent place. A few of them have options which might be identifiable, a few of them don’t. I feel that is one of many causes individuals have been turned off learning them prior to now. Loads you’ll be able to have a look at with the bare eye and work out what a part of the skeleton it’s, however a few of them it’s good to have a look at underneath a microscope.

A fossilized piece of the higher jaw of a lizard, retrieved from cave sediments on the island of Marie-Galante, Guadeloupe. Picture courtesy of Melissa Kemp

AG: So what methods have you ever used to kind of get round these challenges?

MK: The most important factor is simply to not disregard the information that do exist and brush it apart. If you wish to get materials from the tropics, it’s not essentially going to be very, very flashy in the identical means that possibly a T. rex cranium can be, however there are beneficial information on the market. One other factor that we do to get round a few of the challenges is we simply carry on wanting. It requires us to interface with individuals in that space, speaking to individuals about the place caves are, in the event that they’ve ever seen fossils.

So it’s totally a lot a neighborhood effort, when it comes to the work that we do. Discovering websites with the assistance of native individuals. So native people who find themselves on the market exploring the caves for enjoyable usually have been an actual godsend for us, very useful in orienting us on the land. They’re virtually all the time joyful to point out us after which work together with us after we inform them extra about what we’re doing. And that is all the time actually enjoyable.

I feel it is a operate of the place I do fieldwork that I’ve all the time felt protected within the area. I work in areas the place there are very numerous cultures that aren’t my very own, usually cultures the place Black persons are dominant or brown persons are dominant. Once I labored in Guadeloupe, for instance—a French-speaking island within the Lesser Antilles the place nearly all of persons are Black and Creole—if I saved my mouth shut, individuals simply assumed I used to be from Guadeloupe. Being an outsider hasn’t been a supply of worry in these landscapes.

Simply seeing my grandmother as a Black property proprietor in a small city the place there weren’t many different Black property homeowners was very inspiring. I do not know if it is the correct phrase for it, however I felt that the outside belonged to me and that it was my proper to be there. 

AG: To that finish, what’s vital concerning the conversations we’re having now, across the incident with Christian Cooper and the #BlackInNature and #BlackBirdersWeek hashtags? What would you hope would possibly come out of them?

MK: It is vital as a result of it reinforces, notably for us as Black individuals, that we belong right here, that this nation is ours. We had a really, very instrumental half in creating what now we have as we speak on this nation, whilst we proceed to be oppressed. I feel it is also vital for non-Black individuals to listen to that as properly, that they acknowledge these contributions. I really feel very privileged to have had a really constructive affiliation with the outside all my life. Simply seeing my grandmother as a Black property proprietor in a small city the place there weren’t many different Black property homeowners was very inspiring. I do not know if it is the correct phrase for it, however I felt that the outside belonged to me and that it was my proper to be there. 

I heard messages going by college from different individuals like, “Oh, nature is extra of a white area.” However I actually rejected these messages as a result of I had this pleasure in my household historical past, and my connection to the land, and my household’s connection to the land. I simply felt like everybody else had all of it unsuitable, that they simply did not know the historical past of this nation properly sufficient—how tied, for higher or for worse, African Individuals are to the land. It is a very painful historical past, generally, to consider what number of Black Individuals acquired to this nation, why we have been delivered to this nation within the first place, to work the land that white individuals didn’t need to work.

For me, at the very least, studying that historical past has actually made me really feel extra grounded within the area that I occupy. I’ve all the time felt grounded due to my very sturdy household historical past. However I do know quite a lot of Black Individuals haven’t got that. Speaking to distant cousins that I share lineage with additional again, serving to them be taught concerning the historical past of enslavement of our household, has actually helped floor them as properly.

At any time when individuals could have made snide feedback—“I am afraid of the woods,” or, “The woods is a white area”—I’m very snug with my story and being like, “Nicely, I am right here. My household’s right here. They have been on this land for six generations. You’ll be able to’t inform me it would not belong to me.”

This interview has been edited for size and readability.