Lily Johnson-Ulrich

Dr. Lily Johnson-Ulrich


Research Focus & Metrics

Academic Career Length

10Years (2017-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 February 2020 in Animal Behaviour
Verified
Journal Article
Closed access
LJLily Johnson-Ulrich
Lily Johnson-Ulrich
KHKay E. Holekamp
Kay E. Holekamp

21 November 2017 in Biodiversity and Conservation
Verified
Journal Article
Closed access
PDF file
DGD. S. Green
D. S. Green
LJLily Johnson-Ulrich
Lily Johnson-Ulrich
HCH. E. Couraud
H. E. Couraud
KHK. E. Holekamp
K. E. Holekamp


31 July 2017
Verified
Book Chapter
Closed access
PDF file
LJLily Johnson-Ulrich
Lily Johnson-Ulrich

9 March 2021 in Animal Cognition
Verified
Journal Article
Closed access
PDF file
LJLily Johnson-Ulrich
Lily Johnson-Ulrich
GYGidey Yirga
Gidey Yirga
RSRobyn L. Strong
Robyn L. Strong
KHKay Holekamp
Kay Holekamp

22 November 2019 in Frontiers in Ecology and Evolution
Verified
Journal Article
Open access
PDF file
LJLily Johnson-Ulrich
Lily Johnson-Ulrich
SBSarah Benson-Amram
Sarah Benson-Amram
KHKay E. Holekamp
Kay E. Holekamp
Innovation is a well-studied cognitive phenomenon related to general intelligence and brain size. Innovative ability varies considerably within species and it is widely assumed that this variation must have important fitness consequences. However, direct evidence for a link between innovative ability and fitness has rarely been shown. Previous research examined variation in innovative problem-solving in wild spotted hyenas when confronting a novel puzzle box baited with meat. The earlier work revealed that variation in innovativeness in spotted hyenas was not related to age, sex, or social rank, but was predicted by neophobia, persistence, and diversity of motor responses to the puzzle. Here, we used the same dataset from wild spotted hyenas to investigate potential links between innovativeness and fitness. We found that innovative hyenas had lower offspring survivorship than non-innovators, but higher annual cub production (ACP). To test the hypothesis that high ACP can compensate for low offspring survival, we also measured annual cub survivorship (ACS) counting only offspring that survived at least 1 year. Here, there was no significant difference between innovators and non-innovators, which suggests that higher ACP does compensate for lower offspring survival, at least to 1 year of age. Overall, our data suggest that innovativeness may have both costs and benefits for fitness in wild spotted hyenas.