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Jo Leen's story

Wildlife Conservationist building bridges between people and primates.

Jo Leen Yap
Monkey illustration

About

Jo Leen Yap's connection to Penang's wildlife began in her childhood. Today, she leads Langur Project Penang (LPP), supported by The Rufford Foundation, not just to conserve primates, but to weave communities into the fabric of urban biodiversity conservation. She believes human spaces can be havens for nature, not just concrete jungles.

Her work extends beyond research – it's about building bridges, both for urban wildlife like dusky langurs (Trachypithecus obscurus) and for a shared future between people and wildlife. Each canopy bridge and shared story fosters understanding. She empowers communities to become active guardians through citizen science and education, collaborating with local authorities and scientists to drive sustainable change. Her passion is to demonstrate that with compassion, understanding and action, we can share our spaces with our wildlife neighbours.


Connect with Jo Leen

Quote

Prioritise local impact. Small wins
empower communities to create
positive change for both nature
and people.

Jo Leen's Interview

Ever wondered how conservationists transform their love for nature into a career? Hear Jo Leen’s answers to this, and other questions, in her video interview below:

  • Jo Leen Question 1
  • Jo Leen Question 2
  • Jo Leen Question 3
  • Jo Leen Question 4

Key Achievements

  • 1990
    Born and raised in Bukit Mertajam, Penang, Malaysia. ©Jo Leen Yap.

    Born and raised in Bukit Mertajam, Penang, Malaysia

    Growing up in Bukit Mertajam, Penang, Jo Leen developed a deep love for nature through family fishing trips and island hopping. This inspired her childhood explorations of Penang's forests and urban spaces.

  • 2010
    New Zealand. ©Jo Leen Yap

    Studied Abroad

    Jo Leen's undergraduate studies at the University of Canterbury in New Zealand were transformative. The country's nature and human-wildlife interactions inspired her pursuit of ecology and conservation.

  • 2012
    Dark Cave Conservation Site, Selangor, ©Jo Leen Yap.

    Early career in Dark Cave Conservation Site, Selangor, as a Scientific and Education Officer

    Jo Leen's first conservation job provided a foundation in ecotourism, science communication and speleology. Observing long-tailed macaques at the cave entrance sparked her initial interest in primate behaviour.

  • 2013
    Tropical Spice Garden. ©Jo Leen Yap.

    Environment Educator at Tropical Spice Garden

    While caring for her mother in Penang, Jo Leen worked at Tropical Spice Garden, developing educational programmes and gaining business skills. Observing dusky langurs there ignited her passion for primatology.

  • 2015
    Working as a Green Badge Nature Guide. © Jo Leen Yap.

    Became licensed Green Badge Nature Guide in Malaysia

    Jo Leen obtained her Regional Nature Guide License from an 18-day nature guide course in Perak, Malaysia. This enabled her to lead environmental education and ecotourism programmes in Penang.

  • 2015
    Dusky langur with baby. © Jo Leen Yap.

    Left full-time employment to study dusky langurs

    Encouraged by her parents and mentors, Jo Leen left Tropical Spice Garden to study dusky langurs in Penang. This marked the beginning of her dedicated research.

  • 2016
    Dusky langurs (Trachypithecus obscurus) in Penang, Malaysia. © Jo Leen Yap.

    First Rufford Small Grant

    Jo Leen secured her very first research grant, a Rufford Small Grant, to support her Master's research on the activity patterns, habitat use and diet of dusky langurs in Penang.

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  • 2016
    The beginning of Langur Project Penang. © Hoon Cheng Teo.

    Kickstarted ‘Langur Project Penang (LPP)’ on social media with the first volunteers joining

    Jo Leen started the LPP Facebook page to share her dusky langur research. This personal journal evolved into LPP's citizen science initiative.

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  • 2018
    Jo Leen with fellow NAAEE 30 Under 30 award winners. © NAAEE

    North American Association for Environmental Education (NAAEE) Environmental Education 30 Under 30 Awardee 2018

    Jo Leen was recognised as the first Malaysian awardee in 2018, an achievement she considered a privilege, particularly because she was honoured alongside many inspiring environmental educators from around the world.

  • 2018
    Jo Leen with her colleagues at the IPS Congress. © Jo Leen Yap.

    Attended the International Primatological Society (IPS) Congress in Nairobi, Kenya

    Jo Leen and her colleagues from the Malaysian Primatological Society, Sarawak Forestry Corporation, Malaysia Convention & Exhibition Bureau, PLACE Borneo and Sarawak Convention Bureau presented their work and secured Kuching as the host city for the 2023 congress.

  • 2019
    A dusky langur using the new road crossing. © Jo Leen Yap.

    The installation of Ah Lai’s Crossing

    Observing dusky langur road crossings, Jo Leen and her team from LPP and APE Malaysia installed Malaysia's first artificial road canopy bridge in Teluk Bahang, Penang, to reduce wildlife roadkill.

  • 2019
    The Langur Monkey's Cradle | TEDx Talk (Mandarin TEDx). © TEDx Petaling Street

    TEDx Speaker

    Jo Leen took the stage at TEDx Petaling Street, Malaysia, sharing Langur Project Penang's initiatives with an audience of nearly 2,000.

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  • 2020
    Saving Primates – BBC Media Centre. © Jo Leen Yap.

    Featured on BBC Primates

    The work of LPP reached a global audience when the BBC featured their dusky langur study in Penang in episodes two and three of their Primates series.

  • 2022
    LPP volunteers. © Jo Leen Yap.

    PhD Graduation and established LPP as a primate conservation-based enterprise in Malaysia

    Driven by the dusky langurs, Jo Leen pursued a PhD. Following her successful dissertation defense in July 2022, she established LPP as an enterprise to amplify conservation impact.

  • 2023
    Helping wildlife cross the road safely installing a canopy bridge on Pak Mai Road | CIMB Foundation. © Ethan Pang

    Obtained first corporate conservation grant

    With the support of CIMB Islamic, a Malaysian corporate bank, Jo Leen was empowered to expand LPP, directing its efforts towards urban conservation and community-driven science.

  • 2023
    Coexistence For All – For People & Macaques – Langur Project Penang (LPP). © Jo Leen Yap.

    The beginning of human-macaque interaction study

    Thanks to the support of The Long-tailed Macaque (LTM) Project and Animal Protection Denmark, LPP started a project investigating the interaction of humans and long-tailed macaques in human-altered environments.

  • 2024
    Numi's Crossing. © Victor Ng.

    The installation of ‘Numi’s Crossing’

    A new road canopy bridge was installed in a residential area in Penang  known for frequent wildlife crossings and roadkill. This bridge is a collaborative effort between LPP and various community and state government stakeholders.

  • 2024
    Langur Project Penang: A Community-Led Approach to Urban Monkey Conservation in Peninsular Malaysia. @Joey Lee.

    Second Rufford Booster grant

    Jo Leen received a Rufford Small Grant second booster to advance LPP's mission of implementing a community-led approach to urban monkey conservation in Peninsular Malaysia.

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  • 2024
    Jo Leen with her Biji Alam Award. © Loh Teng Shui.

    International and national grants and awards

    LPP's momentum continues as 2024 ends with a wave of awards and grants, providing crucial support for 2025's conservation projects: Gamuda Inspiration Award, Biji Alam Award and YELL grant.

Monkey illustration

Three key things I’ve learnt...

1

Expect the Unexpected

A wildlife conservation career path can be unpredictable, yet I've learned to embrace it. Focusing on present goals while keeping LPP's vision in sight has helped me navigate urban wildlife challenges in Malaysia, and I continue to improve.

2

Urban Biodiversity
Conservation Is
Challenging

Acknowledge differing views, focus on positive impact and build community. Your best effort is enough.

3

Prioritise Local Impact

Small wins empower communities to create positive change for both nature and people.

What next?

Apply for a Rufford Small Grant for
your conservation project

Apply now