Incipient regressive evolution of the circadian rhythms of a cave amphipod
| Main Authors: | Espinasa, Luis, Collins, Emily, Finocchiaro, Anthony, Kopp, Joseph, Robinson, Jenna, Rutkowski, Jennifer |
|---|---|
| Format: | Article Journal |
| Terbitan: |
, 2016
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/159520 |
| ctrlnum |
159520 |
|---|---|
| fullrecord |
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<dc schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd"><creator>Espinasa, Luis</creator><creator>Collins, Emily</creator><creator>Finocchiaro, Anthony</creator><creator>Kopp, Joseph</creator><creator>Robinson, Jenna</creator><creator>Rutkowski, Jennifer</creator><date>2016-10-07</date><description>The habitat of cave-adapted organisms is characterized by complete darkness and in some instances, an apparent lack of environmental distinction between day and night. It is unclear if cave-adapted organisms retain circadian rhythms that can be light-entrained. Stygobromus allegheniensis (Allegheny Cave Amphipod) is an eyeless troglobitic crustacean found in caves located in the Northeastern region of the United States. Two cave populations were examined for evidence of light-entrained circadian rhythms. The first population inhabits a small tectonic cave (Ice Caves, Sam’s Point Preserve, NY) and the second (Clarksville Cave, Clarksville, NY) inhabits a long cave system in limestone rock. Experiments conducted in both the field and the laboratory suggest that the capacity to exhibit motor rhythms has been conserved in at least some individuals of both populations. Nonetheless, their motor activity rhythms have high variability of period length between individuals and do not appear to be light-entrainable. It is thus proposed that in this species, light-entrainable circadian rhythms controlling motor activity have undergone incipient regressive evolution.</description><identifier>https://zenodo.org/record/159520</identifier><identifier>10.3897/subtbiol.20.10010</identifier><identifier>oai:zenodo.org:159520</identifier><relation>url:https://zenodo.org/communities/biosyslit</relation><rights>info:eu-repo/semantics/openAccess</rights><rights>https://creativecommons.org/licenses/by/4.0/legalcode</rights><source>Subterranean Biology 20 1-13</source><subject>Stygobromus allegheniensis</subject><subject>Shawangunk</subject><subject>nyctophilia</subject><subject>Ice Caves</subject><subject>Sam’s Point Preserve</subject><subject>Clarksville Cave</subject><subject>troglobite</subject><subject>troglobiont</subject><subject>light-entrainment</subject><title>Incipient regressive evolution of the circadian rhythms of a cave amphipod</title><type>Journal:Article</type><type>Journal:Article</type><recordID>159520</recordID></dc>
|
| format |
Journal:Article Journal Journal:Journal |
| author |
Espinasa, Luis Collins, Emily Finocchiaro, Anthony Kopp, Joseph Robinson, Jenna Rutkowski, Jennifer |
| title |
Incipient regressive evolution of the circadian rhythms of a cave amphipod |
| publishDate |
2016 |
| topic |
Stygobromus allegheniensis Shawangunk nyctophilia Ice Caves Sam’s Point Preserve Clarksville Cave troglobite troglobiont light-entrainment |
| url |
https://zenodo.org/record/159520 |
| contents |
The habitat of cave-adapted organisms is characterized by complete darkness and in some instances, an apparent lack of environmental distinction between day and night. It is unclear if cave-adapted organisms retain circadian rhythms that can be light-entrained. Stygobromus allegheniensis (Allegheny Cave Amphipod) is an eyeless troglobitic crustacean found in caves located in the Northeastern region of the United States. Two cave populations were examined for evidence of light-entrained circadian rhythms. The first population inhabits a small tectonic cave (Ice Caves, Sam’s Point Preserve, NY) and the second (Clarksville Cave, Clarksville, NY) inhabits a long cave system in limestone rock. Experiments conducted in both the field and the laboratory suggest that the capacity to exhibit motor rhythms has been conserved in at least some individuals of both populations. Nonetheless, their motor activity rhythms have high variability of period length between individuals and do not appear to be light-entrainable. It is thus proposed that in this species, light-entrainable circadian rhythms controlling motor activity have undergone incipient regressive evolution. |
| id |
IOS16997.159520 |
| institution |
ZAIN Publications |
| institution_id |
7213 |
| institution_type |
library:special library |
| library |
Cognizance Journal of Multidisciplinary Studies |
| library_id |
5267 |
| collection |
Cognizance Journal of Multidisciplinary Studies |
| repository_id |
16997 |
| subject_area |
Multidisciplinary |
| city |
Stockholm |
| province |
INTERNASIONAL |
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1 |
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IOS16997 |
| first_indexed |
2022-06-06T05:20:43Z |
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2022-06-06T05:20:43Z |
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dc |
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1734904979183894528 |
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17.608969 |