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Karen Marie Pedersen
 CV                               

2025-Present

Post Doctoral Researcher​

 

2019-2025

PhD Candidate TU Darmstadt

2015-2018 

Community-based environmental conservation volunteer-Perú

2012-2015

Masters Student Wright State University

2010-2010

Research assistant primate behavior,

Puerto Rico

2009-2009

Wildlife rehabilitation and environmental education intern Brukner Nature Center

2005-2009

Study of Biology at the Wright State University

 

 

 Research interests   

 

I am a Ph.D. researcher in Ecological Networks at Technische Universität Darmstadt and a member of the German–Ecuadorian REASSEMBLY collaboration working in the Ecuadorian Chocó. My research examines how ecological communities respond to disturbance and reorganize during forest recovery, with a focus on biodiversity, species interactions, and ecosystem function.

I study ecological reassembly across forest recovery gradients shaped by land-use change. Using dung beetle–mammal trophic networks as a model system, I investigate how disturbance alters interaction structure, functional processes, and indicators of habitat quality. Dung beetles are particularly informative because they are sensitive to environmental change and tightly linked to vertebrate communities, making them useful for assessing both biodiversity loss and ecosystem service recovery.

My work integrates:

  • Disturbance ecology and recovery dynamics

  • Quantitative ecological network analysis

  • Statistical modeling and multivariate approaches (R, Python)

  • Field-based biodiversity assessment across environmental gradients

  • Functional indicators of ecosystem resilience (e.g., nutrient cycling, seed dispersal)

Rather than focusing solely on species presence or abundance, I analyze how interaction networks reorganize during regeneration and which structural features signal resilience or incomplete recovery. This systems-level perspective allows for evaluation of restoration trajectories and development of measurable indicators relevant to conservation planning and adaptive management.

Prior to my doctoral research, I worked in wildlife rehabilitation, environmental education, and sustainable development in Peru. These experiences strengthened my ability to connect ecological theory with implementation challenges and real-world conservation contexts.

I am particularly interested in applying science to real world ecological obstacles. 

 

 

 

 

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Contact

 

karen.pedersen@tu-darmstadt.de

B1|01, Room 261 

Karen Marie Pedersen

Biology Department

Technische Universität Darmstadt

Schnittspahnstr. 3

64287 Darmstadt

Germany

​​

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 Publications                
 Research projects  

 

 

REASSEMBLY

 

 

 

 

Escobar S, Newell FL, Endara MJ, Guevara-Andino JE, Landim AR, Neuschultz EL, Hausmann R, Müller J, Pederen KM, Schleuning M, Tremlett CJ, Villa-Galaviz E, Schaefer HM, Donoso DA, Blüthgen N. (2025) Reassembly of a tropical rainforest ecosystem: A new chronosequence in the Ecuadorian Chocó tested with the recovery of tree attributes. Ecosphere 16:e70157. DOI: 10.1002/ecs2.70157

Gould, E., Fraser, H.S., Parker, T.H. ... Pedersen KM, ... Zitomer RA (2025) Same data, different analysts: variation in effect sizes due to analytical decisions in ecology and evolutionary biology. BMC Biol 23, 35 DOI: 10.1186/s12915-024-02101-x

Grella N, Pedersen K, Blüthgen N, Busse A, Donoso DA, Falconí-López A, Fiderer C, Heurich M, Kriegel P, Newell FL, Püls M, Rabl D, Schäfer HM, Seibold S, Tremlett CJ, Feldhaar H, & Müller J (2025) Vertebrate diversity and biomass along a recovery gradient in a lowland tropical forest. Biotropica, 57(1), e13417. DOI: 10.1111/btp.13417

Pedersen KM, von Beeren C, Oggioni A, Blüthgen N (2024)  Mammal dung–dung beetle trophic networks: an improved method based on gut-content DNA. PeerJ 12:e16627 DOI: 10.7717/peerj.16627

Marín-Armijos D, Chamba-Carrillo A, Pedersen KM (2023) Morphometric changes on dung beetle Dichotomius problematicus (Coleoptera: Scarabaeidae: Scarabaeinae) related to conversion of forest into grassland: A case of study in the Ecuadorian Amazonia. Ecology and Evolution 13 e9831. DOI 10.1002/ece3.9831

Pedersen KM, Blüthgen N (2022) Seed size and pubescence facilitate secondary dispersal by dung beetles. Biotropica DOI: 10.1111/btp.13052

Pedersen KM, Shanee S, Olivera Tarifeño CM (2019) Evidence of opossum (Didelphis sp.) Predation by white-fronted capuchins (Cebus yuracus) in Copallín Private Conservation Area Amazonas, Perú. Neotropical Primates

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