Dr. Elizabeth Hadly
Department of Biology
Stanford University
Stanford, CA 94305-5020

[email protected]

650.725.2655 (phone)
650.723.0589 (fax)


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Graduate students

I am a second year Ph.D. student broadly interested in how communities respond to ecological and geological perturbations during and after the Pleistocene-Holocene transition. My current study system is the herpetofauna of the Lesser Antilles, with an emphasis on the genus Anolis. In particular, I am interested in how diversification and colonization were impacted by the geological formation of the Lesser Antilles, and what factors are integral to the replication of community structures throughout this archipelago.

Melissa
Melissa Kemp
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I am a second year Ph.D. student interested in the ways that human modified landscapes are affecting the evolution and ecology of the organisms living within them. In the past, I have used molecular genetic techniques to examine the effects of an urban landscape on the population genetic structure of the newt Taricha granulosa. Urban populations living in parks and refuges were more differentiated genetically that were populations living outside of an urban area. In the future I would like to study the genetic and morphological variation between populations of animals living within and outside of human modified landscapes to better understand how these landscapes will influence the future evolution of life on our planet.

Luke
Luke Frishkoff
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I am a first year Ph.D. student interested in evolutionary genetics. Although my interests are broad, I am hoping to work with ancient DNA of small mammal populations to understand how environmental change has impacted their population genetics and structure. Before joining the lab at Stanford, I conducted my undergraduate thesis research at Harvard, where I researched the genetic basis of migration in monarch butterflies, focusing on elucidating the population structure of the two monarch subspecies and determining potential genes contributing to the disparate migratory behaviors of the two subspecies.


Jeremy Hsu
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I'm extremely excited to be starting as a first year PhD student. I am broadly interested in population diversification and adaptation in response to environmental (both biotic and abiotic) change. I plan to explore these changes by examining the genetics of the populations in addition to factors such as their morphology and ecology. I graduated from Harvard in 2009, where I wrote my undergraduate thesis on the relative prevalence of convergence and phylogenetic signal in the toepads of Caribbean and mainland Anolis lizards. I spent 2010 in New Zealand on a Fulbright fellowship; there, I conducted lab and field research into the factors affecting circulating blood leukocytes in tuatara (Sphenodon punctatus). I also examined the effect of resource availability on immune function in a translocated population and its source. Working with these rare, threatened reptiles and the people working to conserve them has made me eager to conduct research that will help inform conservation efforts.


Hannah Frank
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I am a first year PhD student. My research in the Hadly Lab will be focusing on Lagomorph populations in the Great Basin area. My research will draw on both modern and ancient DNA in order to visualize the distribution of Lagomorph species through time, allowing us to see how these species have responded to past climate change and thus allowing us to hypothesize how they may respond to future climate change. I will also be looking at past and present populations for evidence of hybridization between these related species.
My undergraduate research at UC Berkeley focused on the biomechanics of how copepods are able to mechanically detect the algae cells that they eat. After graduating, I spent a year in AmeriCorps NCCC aiding in the rebuilding effort in the New Orleans area, and have since been teaching high school biology and math in the Bay Area as well as in Tanzania.

Katie
Katie Solari
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Visiting Scholars

I am a first year PhD student at Hopkins Marine Station, visiting in the Hadly lab for the 2011-2012 academic year. My primary research interest is in the application of genomics techniques and large-scale genetic expression data sets to answer ecological questions in marine populations.

I am currently working on a study of natural selection using the California Mussel (Mytilus californianus) as a study organism. As mussel beds are exposed to the atmosphere at low tides, tolerance of temperature variability is an important trait in a mussel. But some beds are much more exposed and experience higher maximum temperatures than others. To investigate this, I am using both single-nucleotide polymorphisms (SNPs) and RNA expression differences to detect selection at these very small (<5 m) distances.

Additionally, I am interested in researching how ocean acidification will impact Mytilus californianus; populations. As a biomineralizer, what genes will most likely be under selection as the expected pH change alters the amount of available calcium carbonate and aragonite - critical components in the matrix of nacre and mollusc shell formation - and is there current standing variability in those genes to buffer the species? This is highly likely due to the normal variability of ocean pH on our coastline, but to what extent and where that genetic variability lies are important questions for the future of this dominant rocky-intertidal species.


Bryan Barney
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My research centers on the intersection of biodiversity and ecosystem services in tropical countryside. More specifically, I�m interested in how agricultural intensification impacts bird communities and associated ecosystem services. Comparing bird communities across regions in Costa Rica yielded the key insight that beta diversity is retained in low-intensity land use but is lost rapidly with further intensification. Similarly, I found that community structure and stability of several functional guilds are resilient to low-intensity, but not high-intensity, land use.
These guilds provide landowners key ecosystem services. Coffee is the second most traded commodity after oil, and the coffee berry borer (Hypothenemus hampei) is its primary insect pest. In a replicated exclosure experiment, I discovered that both bats and birds consume the berry borer, conferring an economic benefit to coffee farmers. Future work will attempt to attribute pest-control services to individual species through DNA analysis of bird and bat feces. By marrying species-specific pest control with existing bird distribution models, I hope to create a spatially-explicit model for bird-mediated pest control services across tropical countryside.


Daniel Karp
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I am a master student in a European program, doing my thesis in the Hadly Lab now. I am interested in studing how population respond to ecological stress. In the past, I had done some research in evolution and diversity of Extremophile.

Zhen
Zhen Zhou
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"I am a doctoral student in the Ecology and Evolutionary Biology Program at Stanford University working with Gretchen C. Daily and Paul R. Ehrlich in the Center for Conservation Biology. My research primarily focuses on quantifying the populations, community assemblages, and species interactions of organisms in human-dominated landscapes under the framework of countryside biogeography. Much of my work centers on predictive models, habitat use, and metapopulation and metacommunity dynamics of birds and bats in Coto Brus, Costa Rica. This work is largely informed by the need to crystallize a firm link between diversity of life on the planet, conservation biology, ecosystem services, and natural capital. Specifically, I am interested in fine-scale tradeoffs between the conservation of biodiversity and agricultural production in the tropics.

Additionally, with different disciplinary goals and methods, I am interested in reframing the red in tooth and claw narrative of the natural world by examining cooperation between animal communities, social groups, and genders. In collaboration with Joan E. Roughgarden I am investigating the evolution and ecology of social reproductive behavior under the framework of social selection, an alternative to sexual selection theory and its corollaries. I am interested in relating the evolutionary behavioral ecologies of mutualism, behavior in the face of resource limitations, and social reproductive behavior with the human predicaments of consumption, population policy, and gender inequality."


Chase Mendenhall
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Website
Feature Story


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Research Assistant

I am interested in how climate changes affect organisms. My past research project focused on the cranial morphology American pika, a small mammal that is restricted to montane habitat. I am currently working on several projects that explore the relationhsip between climate and population dynamics.


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Undergraduate Researchers

I'm currently teaching intro biology at Stanford as a Human Biology Core Course Associate. I graduated class of 2011 with a major in Biology concentrating in ecology and evolution. I started studying pocket gophers (Thomomys) as an undergraduate in the Hadly lab and my honors thesis identified the soil characteristics that separate gophers into their allopatric ranges. This year, I continue to analyze gopher morphometric data to understand how biomechanical differences allow species to dominate in the particular soil conditions of their range.

Ariel
Ariel Marcy
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I am a senior at Stanford University majoring in Earth Systems and minoring in Human Biology. I am interested in how global environmental change affects animal populations, and I am currently studying optimization strategies for conservation planning as well as the effects of ocean acidification on marine species and populations.

Jenny
Jenny Rempel
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I'm a senior majoring in Biology, with a concentration in Ecology and Evolution. I'm particularly interested in the effects of climate change on wildlife populations and conservation efforts of endangered species.

Sanjay
Sanjay Saverimuttu
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I am a junior at Stanford University, majoring in Biology. I conducted research for five years before coming to Stanford, ranging from measuring and analyzing population dynamics of blue crabs in the Cheseapeake Bay to helping test and develop a cure for an amphibian disease to discovering evolutionary relationships between sweat bees and nematodes. I was recently awarded the Young Scientist Award at the Intel International Science and Engineering Fair. I am fascinated by the research that is being conducted in the Hadly lab and am excited to be currently focusing on pika genetics.

Tara
Tara Adiseshan
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I am a junior at Stanford University, majoring in Biology (EcoEvo) and Archaeology. I will be working with prehistoric and modern populations of mountain beaver (Aplodontia), examining the genetics, morphology, and spatial distribution of the genus.

Donny
Daniel Perret
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I am a junior at Stanford University, majoring in Biology and minoring in Chemistry. I am interested in how animals adapt to their environment and will be studying how lagomorphs have historically responded to climate change.

Jonathan
Jonathan Barrera
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I am a sophomore at Stanford University planning to major in Human Biology with a minor in Studio Art. I am interested in exploring the effects of climate change on mammal populations.

Anne
Anne Rempel
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I am a sophomore planning to major in computer science (bioinformatics) with a minor in biology. Currently, I am helping Danny to attribute berry borer (pest) control services to specific species of birds and bats using DNA analysis. In the future, I will continue to work with Danny and begin my own independent project involving the coffee borer beetle.


Maesen Churchill
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I am a sophomore at Stanford University, possibly majoring in Geological and Environmental Sciences with a minor in Creative Writing. Currently, I am helping out in the lab with various tasks. I am interested in studying the fossil record of mass extinctions, and hope to work on an individual research project in the near future.

ZiXiang
ZiXiang Zhang
Email


 

Hadly Lab, Department of Biology, Stanford University, Stanford, CA 94305-5020
ph. 650.725.2655 | fax: 650.723.0589 | e-mail: [email protected]