Project: Convergent evolution of olfactory and thermoregulatory capacities in small amphibious mammals

About the project

Olfaction and thermoregulation are key functions for mammals. The former is critical to feeding, mating, and predator avoidance behaviors, while the latter is essential for homeothermy. Aquatic and amphibious mammals face olfactory and thermoregulatory challenges not generally encountered by terrestrial species. In mammals, the nasal cavity houses a bony system supporting soft tissues and sensory organs implicated in either olfactory or thermoregulatory functions. It is hypothesized that to cope with aquatic environments, amphibious mammals have expanded their thermo regulatory capacity at the expense of their olfactory system. We investigated the evolutionary history of this potential trade-off using a comparative dataset of three-dimensional (3D) CT scans of 189 skulls, capturing 17 independent transitions from a strictly terrestrial to an amphibious lifestyle across small mammals (Afrosoricida, Eulipotyphla, and Rodentia). We identified rapid and repeated loss of olfactory capacities synchronously associated with gains in thermoregulatory capacity in amphibious taxa sampled from across mammalian phylogenetic diversity. Evolutionary models further reveal that these convergences result from faster rates of turbinal bone evolution and release of selective constraints on the thermoregulatory-olfaction trade-off in amphibious species. Lastly, we demonstrated that traits related to vital functions evolved faster to the optimum compared to traits that are not related to vital functions.

Metadata and usage reports

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Members

Quentin Martinez

Data

24 published media groups owned by this project
24 published media groups associated with project specimens
122 project specimens
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AMNH:-:105370, Leptomys signatus

Created 3/22/2020 at 12:22
Modified 3/22/2020 at 12:22
AMNH:-:110056, Baiyankamys habbema

Created 3/20/2020 at 11:24
Modified 3/20/2020 at 11:24
AMNH:-:153013, Echiothrix centrosa

Created 3/22/2020 at 11:20
Modified 3/22/2020 at 11:20
AMNH:-:191441, Baiyankamys habbema

Created 3/20/2020 at 11:27
Modified 3/20/2020 at 11:27
AMNH:-:194936, Leptomys ernstmayri

Created 3/22/2020 at 12:21
Modified 3/22/2020 at 12:21
AMNH:-:225072, Tateomys macrocercus

Created 3/22/2020 at 14:18
Modified 3/22/2020 at 14:18
AMNH:-:225073, Tateomys macrocercus

Created 3/22/2020 at 14:19
Modified 3/22/2020 at 14:19
AMNH:-:225092, Melasmothrix naso

Created 3/22/2020 at 13:11
Modified 3/22/2020 at 13:11
AMNH:-:225101, Melasmothrix naso

Created 3/22/2020 at 13:10
Modified 3/22/2020 at 13:10
AMNH:-:225117, Tateomys rhinogradoides

Created 3/22/2020 at 14:23
Modified 3/22/2020 at 14:23
AMNH:-:242099, Apomys abrae

Created 3/20/2020 at 10:31
Modified 3/20/2020 at 10:31
AMNH:-:2952722, Leptomys elegans

Created 3/22/2020 at 12:13
Modified 3/22/2020 at 12:13
AMNH:-:501254, Leptomys elegans

Created 3/22/2020 at 12:15
Modified 3/22/2020 at 12:15
AMNH:-:66202, Anotomys leander

Created 3/20/2020 at 9:18
Modified 3/20/2020 at 9:18
CBGP:-:-, Rattus praetor

Created 3/22/2020 at 14:03
Modified 3/22/2020 at 14:03
CBGP:-:P0045, Apomys banahao

Created 3/20/2020 at 10:52
Modified 3/20/2020 at 10:52
CBGP:-:P0066, Apomys banahao

Created 3/20/2020 at 10:33
Modified 3/20/2020 at 10:33
CBGP:-:PA0024, Hydromys hussoni

Created 3/22/2020 at 11:52
Modified 3/22/2020 at 11:52
CBGP:-:POO67, Apomys banahao

Created 3/20/2020 at 10:26
Modified 3/20/2020 at 10:26
FMNH:-:188256, Apomys datae

Created 3/20/2020 at 11:00
Modified 3/20/2020 at 11:00
FMNH:-:222107, Chrotomys mindorensis

Created 3/20/2020 at 11:59
Modified 3/20/2020 at 11:59
FMNH:-:252475, Apomys datae

Created 3/20/2020 at 11:05
Modified 3/20/2020 at 11:05
MNHN:-:2002, Oxymycterus quaestor

Created 3/22/2020 at 13:44
Modified 3/22/2020 at 13:44
MNHN:-:CG2007N335, Sigmodon hispidus

Created 3/22/2020 at 14:13
Modified 3/22/2020 at 14:13
MZB:-:33229, Rattus morotaiensis

Created 3/22/2020 at 13:59
Modified 3/22/2020 at 13:59
MZB:-:33254, Rattus morotaiensis

Created 3/22/2020 at 14:00
Modified 3/22/2020 at 14:00
MZB:-:YS391, Hydromys hussoni

Created 3/22/2020 at 11:42
Modified 3/22/2020 at 11:43
NHMUK:-:02816, Chibchanomys orcesi

Created 3/20/2020 at 11:54
Modified 3/20/2020 at 11:54
NHMUK:-:1610385, Myocastor coypus

Created 3/22/2020 at 13:28
Modified 3/22/2020 at 13:28
NHMUK:-:19772750, Ondatra zibethicus

Created 3/22/2020 at 13:40
Modified 3/22/2020 at 13:40
NHMUK:-:201715, Holochilus chacarius

Created 3/22/2020 at 11:36
Modified 3/22/2020 at 11:36
NHMUK:-:22253, Graomys domorum

Created 3/22/2020 at 11:34
Modified 3/22/2020 at 11:34
NHMUK:-:2661254, Neotomys ebriosus

Created 3/22/2020 at 13:36
Modified 3/22/2020 at 13:36
NHMUK:-:2751101, Geoxus valdivianus

Created 3/22/2020 at 11:31
Modified 3/22/2020 at 11:31
NHMUK:-:3010416, Lemmus lemmus

Created 3/22/2020 at 12:10
Modified 3/22/2020 at 12:10
NHMUK:-:3010424, Lemmus lemmus

Created 3/22/2020 at 12:11
Modified 3/22/2020 at 12:11
NHMUK:-:34114171, Dolichotis salinicola

Created 3/22/2020 at 6:59
Modified 3/22/2020 at 6:59
NHMUK:-:3421127, Ellobius talpinus

Created 3/22/2020 at 11:22
Modified 3/22/2020 at 11:22
NHMUK:-:3421130, Ellobius talpinus

Created 3/22/2020 at 11:25
Modified 3/22/2020 at 11:25
NHMUK:-:34910176, Anotomys leander

Created 3/20/2020 at 9:31
Modified 3/20/2020 at 11:51
NHMUK:-:362261, Castor fiber fiber

Created 3/20/2020 at 11:53
Modified 3/20/2020 at 11:53
NHMUK:-:3673010, Ondatra zibethicus

Created 3/22/2020 at 13:37
Modified 3/22/2020 at 13:37
NHMUK:-:36730121, Ondatra zibethicus

Created 3/22/2020 at 13:38
Modified 3/22/2020 at 13:38
NHMUK:-:3711327, Dicrostonyx groenlandicus

Created 3/22/2020 at 6:50
Modified 3/22/2020 at 6:50
NHMUK:-:37924, Loxodontomys micropus

Created 3/22/2020 at 12:24
Modified 3/22/2020 at 12:24
NHMUK:-:40385, Echiothrix centrosa

Created 3/22/2020 at 11:12
Modified 3/22/2020 at 11:12
NHMUK:-:471366, Parahydromys asper

Created 3/22/2020 at 13:45
Modified 3/22/2020 at 13:45
NHMUK:-:47425, Blanfordimys afghanus

Created 3/20/2020 at 11:30
Modified 3/20/2020 at 11:51
NHMUK:-:4966, Castor canadensis

Created 3/18/2020 at 4:57
Modified 3/20/2020 at 11:51
NHMUK:-:501252, Leptomys ernstmayri

Created 3/22/2020 at 12:18
Modified 3/22/2020 at 12:18
NHMUK:-:501733, Pseudohydromys fuscus

Created 3/22/2020 at 13:52
Modified 3/22/2020 at 13:52
NHMUK:-:501734, Pseudohydromys eleanorae

Created 3/22/2020 at 13:50
Modified 3/22/2020 at 13:50
NHMUK:-:5112822, Leptomys elegans

Created 3/22/2020 at 12:16
Modified 3/22/2020 at 12:16
NHMUK:-:51171, Anotomys leander

Created 3/20/2020 at 9:26
Modified 3/20/2020 at 11:51
NHMUK:-:52162, Orthogeomys hispidus

Created 3/22/2020 at 13:42
Modified 3/22/2020 at 13:42
NHMUK:-:52327, Thomomys bottae

Created 3/22/2020 at 14:29
Modified 3/22/2020 at 14:29
NHMUK:-:53290, Pseudohydromys murinus

Created 3/22/2020 at 13:55
Modified 3/22/2020 at 13:55
NHMUK:-:53291, Pseudohydromys murinus

Created 3/22/2020 at 13:57
Modified 3/22/2020 at 13:57
NHMUK:-:53296, Pseudohydromys fuscus

Created 3/22/2020 at 13:53
Modified 3/22/2020 at 13:53
NHMUK:-:544813, Myomyscus verreauxii

Created 3/22/2020 at 13:31
Modified 3/22/2020 at 13:31
NHMUK:-:54580, Akodon aerosus

Created 3/20/2020 at 8:52
Modified 3/20/2020 at 11:50
NHMUK:-:58504, Sigmodon hispidus

Created 3/22/2020 at 14:11
Modified 3/22/2020 at 14:11
NHMUK:-:671657, Scapteromys tumidus

Created 3/22/2020 at 14:06
Modified 3/22/2020 at 14:06
NHMUK:-:701971, Myocastor coypus

Created 3/22/2020 at 13:26
Modified 3/22/2020 at 13:26
NHMUK:-:72214, Crunomys melanius

Created 3/22/2020 at 6:42
Modified 3/22/2020 at 6:42
NHMUK:-:79212, Carterodon sulcidens

Created 3/20/2020 at 11:49
Modified 3/20/2020 at 11:49
NHMUK:-:79213, Carterodon sulcidens

Created 3/20/2020 at 11:47
Modified 3/20/2020 at 11:47
NHMUK:-:79230, Clyomys laticeps

Created 3/22/2020 at 6:31
Modified 3/22/2020 at 6:31
NHMUK:-:81472, Hylaeamys yunganus

Created 3/22/2020 at 11:55
Modified 3/22/2020 at 11:55
NHMUK:-:8232028, Thomomys townsendii

Created 3/22/2020 at 14:26
Modified 3/22/2020 at 14:26
NHMUK:-:9011141, Neofiber alleni

Created 3/22/2020 at 13:33
Modified 3/22/2020 at 13:33
NHMUK:-:921253, Condylura cristata

Created 3/22/2020 at 6:33
Modified 3/22/2020 at 6:33
NHMUK:-:948614, Ichthyomys stolzmanni

Created 3/22/2020 at 12:02
Modified 3/22/2020 at 12:02
NHMUK:-:958219, Chrotomys whiteheadi

Created 3/22/2020 at 6:20
Modified 3/22/2020 at 6:20
NHMUK:-:958220, Chrotomys whiteheadi

Created 3/22/2020 at 6:26
Modified 3/22/2020 at 6:26
NHMUK:-:971245, Echiothrix leucura

Created 3/22/2020 at 11:15
Modified 3/22/2020 at 11:15
NHMUK:-:971246, Echiothrix leucura

Created 3/22/2020 at 11:18
Modified 3/22/2020 at 11:18
NHMUK:-:97484, Crunomys fallax

Created 3/22/2020 at 6:35
Modified 3/22/2020 at 6:35
NHMUK:-:975216, Chrotomys silaceus

Created 3/22/2020 at 6:18
Modified 3/22/2020 at 6:18
NHMUK:-:975217, Chrotomys whiteheadi

Created 3/22/2020 at 6:28
Modified 3/22/2020 at 6:28
NHMUK:-:9831131, Thomomys townsendii

Created 3/22/2020 at 14:28
Modified 3/22/2020 at 14:28
NHMUK:-:9831619, Microcavia niata

Created 3/22/2020 at 13:13
Modified 3/22/2020 at 13:13
NHMUK:-:BMNH71112, Desmana moschata

Created 3/22/2020 at 6:46
Modified 3/22/2020 at 6:46
NHMUK:-:BMNH8911121, Desmana moschata

Created 3/22/2020 at 6:47
Modified 3/22/2020 at 6:47
NMNH:-:125244, Apomys hylocetes

Created 3/20/2020 at 11:11
Modified 3/20/2020 at 11:11
NMNH:-:458755, Apomys littoralis

Created 3/20/2020 at 11:15
Modified 3/20/2020 at 11:16
NMNH:-:458955, Chrotomys gonzalesi

Created 3/20/2020 at 11:57
Modified 3/20/2020 at 11:57
NMNH:-:467226, Malacomys edwardsi

Created 3/22/2020 at 13:08
Modified 3/22/2020 at 13:08
NMNH:-:486151, Malacomys cansdalei

Created 3/22/2020 at 13:05
Modified 3/22/2020 at 13:05
NMNH:-:CG1900N562, Ichthyomys hydrobates

Created 3/22/2020 at 12:04
Modified 3/22/2020 at 12:04
NMNH:-:CG1932N1951, Ichthyomys hydrobates

Created 3/22/2020 at 11:57
Modified 3/22/2020 at 12:08
NMNH:-:CG1932N2950, Ichthyomys hydrobates

Created 3/22/2020 at 11:59
Modified 3/22/2020 at 12:08
NMNH:-:CG1961N749, Galemys pyrenaicus

Created 3/22/2020 at 11:27
Modified 3/22/2020 at 12:08
NMNH:-:CG1961N750, Galemys pyrenaicus

Created 3/22/2020 at 11:29
Modified 3/22/2020 at 12:08
NMV:-:32027, Waiomys mamasae

Created 3/22/2020 at 14:31
Modified 3/22/2020 at 14:31
NMV:-:36982, Bunomys andrewsi

Created 3/20/2020 at 11:37
Modified 3/20/2020 at 11:37
NMV:-:36982, Bunomys andrewsi

Created 3/20/2020 at 11:44
Modified 3/20/2020 at 11:44
NMV:-:37081, Tateomys macrocercus

Created 3/22/2020 at 14:21
Modified 3/22/2020 at 14:21
NMV:-:KCR2634, Tateomys rhinogradoides

Created 3/22/2020 at 14:25
Modified 3/22/2020 at 14:25
RMNH:-:12585, Hydromys hussoni

Created 3/22/2020 at 11:40
Modified 3/22/2020 at 11:40
UM:-:-, Hydrochoerus hydrochaeris

Created 3/22/2020 at 11:38
Modified 3/22/2020 at 11:38
UM:-:-, Mus minutoides

Created 3/22/2020 at 13:18
Modified 3/22/2020 at 13:18
UM:-:-, Myocastor coypus

Created 3/22/2020 at 13:29
Modified 3/22/2020 at 13:29
UM:-:-, Neomys fodiens

Created 3/22/2020 at 13:34
Modified 3/22/2020 at 13:34
UM:-:-, Ondatra zibethicus

Created 3/22/2020 at 13:41
Modified 3/22/2020 at 13:41
UM:-:-, Proechimys guyannensis

Created 3/22/2020 at 13:49
Modified 3/22/2020 at 13:49
UM:-:-, Sorex coronatus

Created 3/22/2020 at 14:15
Modified 3/22/2020 at 14:15
UM:-:-, Dipodomys compactus

Created 3/22/2020 at 6:56
Modified 3/22/2020 at 6:56
UM:-:2, Mus mattheyi

Created 3/22/2020 at 13:17
Modified 3/22/2020 at 13:17
UM:-:5422, Rattus tanezumi

Created 3/22/2020 at 14:04
Modified 3/22/2020 at 14:04
UM:-:7226, Mus pahari

Created 3/22/2020 at 13:25
Modified 3/22/2020 at 13:25
UM:-:726N, Dipodomys ordii

Created 3/22/2020 at 6:52
Modified 3/22/2020 at 6:52
UM:-:727N, Dipodomys panamintinus

Created 3/22/2020 at 6:54
Modified 3/22/2020 at 6:54
UM:-:7314, Mus cervicolor

Created 3/22/2020 at 13:15
Modified 3/22/2020 at 13:15
UM:-:C0304, Rattus norvegicus

Created 3/22/2020 at 14:01
Modified 3/22/2020 at 14:01
UM:-:QM, Talpa europaea

Created 3/22/2020 at 14:16
Modified 3/22/2020 at 14:16
UM:-:R089V150_FG1, Mus musculus

Created 3/22/2020 at 13:20
Modified 3/22/2020 at 13:20
UM:-:R089V152_MP2, Mus musculus

Created 3/22/2020 at 13:22
Modified 3/22/2020 at 13:22
UM:-:V1566, Makalata didelphoides

Created 3/22/2020 at 13:04
Modified 3/22/2020 at 13:04
UM:-:V1648, Proechimys guyannensis

Created 3/22/2020 at 13:47
Modified 3/22/2020 at 13:47
UM:QM:857, Arvicola amphibius

Created 3/20/2020 at 11:19
Modified 3/20/2020 at 11:19
UM:QM:932, Arvicola sapidus

Created 3/20/2020 at 11:21
Modified 3/20/2020 at 11:21