Derek Lee

Associate Research Professor

Huck Affiliations

Publication Tags

Giraffa Camelopardalis Strigiformes Demography Social Structure Metapopulation Forage Habitats Demographic Statistics Ecosystem Effect Habitat Livestock Ecology Spatial Variation Animals Foraging Habitat Preferences Vegetation Weaning Subpopulation Evolutionary Biology Winter Meta Analysis Terminology Habitat Selection

Most Recent Publications

K. Morandi, A. K. Lindholm, D. E. Lee, M. L. Bond, 2022, Journal of Zoology on p. 147-157

Trophic processes constrain seasonal ungulate distributions at two scales in an East African savanna

Nicholas L. James, Monica L. Bond, Arpat Ozgul, Derek E. Lee, 2022, Journal of Mammalogy on p. 956-969

Forage selection by Masai giraffes (Giraffa camelopardalis tippelskirchi) at multiple spatial scales

Matana Levi, Derek E. Lee, Monica L. Bond, Anna C. Treydte, 2022, Journal of Mammalogy on p. 737-744

Effects of winter storms and oceanographic conditions on survival to weaning: a 37 year study of northern elephant seals on the Farallon Islands

Nadav Nur, Ryan W. Berger, Derek E. Lee, Pete M. Warzybok, Jaime Jahncke, 2022, Marine Ecology - Progress Series on p. 173-189

Using spot pattern recognition to examine population biology, evolutionary ecology, sociality, and movements of giraffes: a 70-year retrospective

Derek E. Lee, George G. Lohay, Douglas R. Cavener, Monica L. Bond, 2022, Mammalian Biology

Social connectedness and movements among communities of giraffes vary by sex and age class

Juan Lavista Ferres, Derek Lee, Md Nasir, Yu-Chia Chen, Avleen Bijral, Fred Bercovitch, Monica Bond, 2021, Animal Behaviour

When scientists are attacked: strategies for dissident scientists and whistleblowers.

Derek Lee, 2021, on p. 13

Monica L. Bond, Barbara König, Arpat Ozgul, Damien R. Farine, Derek E. Lee, 2021, Journal of Wildlife Management on p. 920-931

M. L. Bond, D. E. Lee, D. R. Farine, A. Ozgul, B. König, 2021, Proceedings of the Royal Society B: Biological Sciences

Most-Cited Papers

Occupancy of California Spotted Owl sites following a large fire in the Sierra Nevada, California

Derek Lee, Monica L. Bond, 2015, Condor on p. 228-236

Influence of fire and salvage logging on site occupancy of spotted owls in the San Bernardino and San Jacinto Mountains of Southern California

Derek E. Lee, Monica L. Bond, Mark I. Borchert, Richard Tanner, 2013, Journal of Wildlife Management on p. 1327-1341

Fred B. Bercovitch, Philip S.M. Berry, Anne Dagg, Francois Deacon, John B. Doherty, Derek E. Lee, Frédéric Mineur, Zoe Muller, Rob Ogden, Russell Seymour, Bryan Shorrocks, Andy Tutchings, 2017, Current Biology on p. R136-R137

Monica L. Bond, Curtis M. Bradley, Christian Kiffner, Thomas A. Morrison, Derek E. Lee, 2017, Landscape Ecology on p. 1705-1721

Movements and source–sink dynamics of a Masai giraffe metapopulation

Derek E. Lee, Douglas T. Bolger, 2017, Population Ecology on p. 157-168

Derek E. Lee, Monica L. Bond, Bernard M. Kissui, Yustina A. Kiwango, Douglas T. Bolger, 2016, Journal of Mammalogy on p. 1015-1025

Foraging habitat selection by California spotted owls after fire

Monica L. Bond, Curt Bradley, Derek E. Lee, 2016, Journal of Wildlife Management on p. 1290-1300

Monica L. Bond, Barbara König, Derek E. Lee, Arpat Ozgul, Damien R. Farine, 2020, Journal of Animal Ecology

Previous year's reproductive state affects Spotted Owl site occupancy and reproduction responses to natural and anthropogenic disturbances

Derek Lee, Monica L. Bond, 2015, Condor on p. 307-319

News Articles Featuring Derek Lee

Male giraffes have social connections beyond their own community

Nature is not the mechanical clinking of cogs, preordained by certain ecological laws. It is dynamic – animals and plants form complex and flexible relationships in their individual, contingent contexts. A new study revealing the differing sexual politics in giraffe society illustrates just that. The study shows that male giraffes are more socially connected than females.

Male giraffes are more socially connected than females

Although female giraffes have closer “friends” than male giraffes, male giraffes have more “acquaintances” than females, according to a new study by an international team that includes a Penn State biologist. The study demonstrates that giraffes form a complex multilevel society that is driven by differences in the social connections among individuals, which could have conservation implications for the endangered giraffes.

Whole-Genome Data Point to Four Species of Giraffe

The genome sequences of 51 giraffes from all over Africa contribute to the latest attempt in an ongoing pursuit to pin down a species number.

Friends matter: More sociable giraffes live longer

Adult female giraffes that group together with more of their peers live longer than less sociable individuals, according to a five-year study of giraffes in Tanzania.

Could spotted owls benefit from forest fires?

It may seem counterintuitive, but forest fires are actually beneficial to spotted owls, according to Penn State biologist Derek Lee.

Human presence weakens social relationships of wild giraffes

Living in close proximity to human settlements disturbs giraffe social networks, with animals having weaker bonds and fewer interactions with other giraffes, according to a new study by a team including a Penn State biologist.

Wildfires Can Reduce Biodiversity. Can Biodiversity Be Used to Reduce Wildfires?

Over the past several months, wildfires have burned a huge portion of Australia’s natural landscape. We’re talking almost 18 million acres of bushland, forest and national parks. This was not your typical annual wildfire.

Improving success of giraffe translocations

Researchers advise that Giraffes being translocated for conservation purposes should be moved in groups that contain at least 30 females and three males to ensure long-term population success.