Project: Locomoting into New Niches: Limbs, Ecology, and Evolution in Mustelid Mammals

About the project

A pivotal aspect of locomotion in limbed vertebrates is that the limb bones must be able to withstand the forces incurred during locomotion while transmitting the forces generated by limb muscles. The morphology of a limb bone is intimately tied to its mechanical loading regime, and, as such, long bone morphology should reflect ecological specializations. Using museum specimens, this project measures traits associated with bone internal structure, including bone cross-sectional area (CSA), second moment of area (SMA), and section modulus (MOD). CSA and SMA provide the bone’s resistance to axial and bending loads, respectively. Though bone cross-sectional properties have been studied in terms of interspecific scaling relationships or during the ontogeny of individual species, it has yet to be investigated how bone cross-sectional properties vary within a functionally diverse lineage. Moreover, it also remains unknown if bone cross-sectional traits are subject to distinct selective pressures as lineages evolve new locomotor habits. Given the locomotor diversity of mustelid mammals, including climbing, digging, and swimming specialists, this project investigates whether bone cross-sectional properties differ among locomotor habit further fitting cross-sectional properties to models of trait diversification.

Metadata and usage reports

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Brandon Kilbourne


64 published media groups owned by this project
64 published media groups associated with project specimens
36 project specimens

More Information

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fmnh:mammals:127293, Galictis vittata

Created 1/24/2019 at 5:31
Modified 1/24/2019 at 5:31
fmnh:mammals:151030, Martes americana

Created 1/22/2019 at 4:58
Modified 1/22/2019 at 4:58
fmnh:mammals:151031, Martes americana

Created 1/22/2019 at 8:11
Modified 1/22/2019 at 8:11
fmnh:mammals:63799, Lutrogale perspicillata

Created 1/24/2019 at 7:22
Modified 1/24/2019 at 7:22
NMP:90108, Vormela peregusna

Created 2/27/2019 at 5:09
Modified 2/27/2019 at 5:11
P6V:90124, Pekania pennanti

Created 3/4/2019 at 9:19
Modified 3/4/2019 at 9:19
ZMB:MAM:12407, Mustela eversmanii

Created 3/12/2019 at 11:53
Modified 3/12/2019 at 11:53
ZMB:MAM:14241, Martes zibellina

Created 3/12/2019 at 13:05
Modified 3/12/2019 at 13:05
ZMB:MAM:17390, Melogale moschata

Created 2/15/2019 at 11:08
Modified 2/15/2019 at 11:08
ZMB:MAM:30650, Lontra longicaudis

Created 3/12/2019 at 13:58
Modified 3/12/2019 at 13:58
ZMB :MAM:30682, Aonyx cinerea

Created 3/13/2019 at 10:14
Modified 3/13/2019 at 10:15
ZMB:MAM:30740, Enhydra lutris

Created 2/19/2019 at 8:28
Modified 2/19/2019 at 8:28
ZMB:MAM:34012, Arctonyx collaris

Created 3/12/2019 at 7:02
Modified 3/12/2019 at 7:02
ZMB:MAM:40226, Mustela erminea

Created 3/13/2019 at 12:29
Modified 3/13/2019 at 12:29
ZMB:MAM:43245, Aonyx cinerea

Created 3/13/2019 at 12:49
Modified 3/14/2019 at 6:02
ZMB:MAM:43443, Mustela kathiah

Created 3/14/2019 at 6:58
Modified 3/14/2019 at 6:58
ZMB:MAM:56591, Meles meles

Created 2/26/2019 at 5:12
Modified 2/26/2019 at 5:12
ZMB:MAM:59069, Lutra lutra

Created 2/18/2019 at 6:38
Modified 2/18/2019 at 9:17
ZMB:MAM:60477, Martes zibellina

Created 3/14/2019 at 7:42
Modified 3/14/2019 at 7:42
ZMB:MAM:60504, Lontra felina

Created 3/11/2019 at 10:53
Modified 3/11/2019 at 10:53
ZMB:MAM:63889, Mustela sibirica

Created 3/14/2019 at 8:40
Modified 3/14/2019 at 8:40
ZMB:MAM:69395, Mustela erminea

Created 3/14/2019 at 9:43
Modified 3/14/2019 at 9:43
ZMB:MAM:70627, Ictonyx striatus

Created 3/14/2019 at 10:24
Modified 3/14/2019 at 10:24
ZMB:MAM:70628, Ictonyx striatus

Created 3/14/2019 at 11:40
Modified 3/14/2019 at 11:40
ZMB:MAM:8949, Melogale orientalis

Created 2/27/2019 at 10:22
Modified 2/27/2019 at 10:24