Dermal disappearance: differences in cryptic color change in the slimy sculpin (Cottus cognatus).
Cryptic behavior is an excellent anti-predator defense strategy, confounding search time and development of search images. Little research has been done on the effects of the presence of a predator on cryptic coloration. Our study reviewed the rate of cryptic color change in slimy sculpins (Cottus c...
Main Authors: | , , |
---|---|
Other Authors: | , |
Format: | Report |
Language: | unknown |
Published: |
2004
|
Subjects: | |
Online Access: | https://hdl.handle.net/2027.42/55022 |
id |
ftumdeepblue:oai:deepblue.lib.umich.edu:2027.42/55022 |
---|---|
record_format |
openpolar |
spelling |
ftumdeepblue:oai:deepblue.lib.umich.edu:2027.42/55022 2023-08-20T04:06:00+02:00 Dermal disappearance: differences in cryptic color change in the slimy sculpin (Cottus cognatus). Letourneau, Joe Cole, Scott D. Arnett, Fred Biological Station, University of Michigan Ann Arbor Maple River - West Branch UMBS Campus 2004 571690 bytes 3144 bytes application/pdf text/plain https://hdl.handle.net/2027.42/55022 unknown Diagram or Illustration Graph Table of Numbers https://hdl.handle.net/2027.42/55022 Fishes VERTEBRATES BEHAVIOR COLOR CHANGE PREDATION AVOIDANCE ADAPTATION DISGUISE PIGMENTS CHROMATOPHORES Natural Resource and Environment Science Working Paper 2004 ftumdeepblue 2023-07-31T20:49:58Z Cryptic behavior is an excellent anti-predator defense strategy, confounding search time and development of search images. Little research has been done on the effects of the presence of a predator on cryptic coloration. Our study reviewed the rate of cryptic color change in slimy sculpins (Cottus cognatus). A scale of six colors was devised to quantify color change. We characterized rates of change in two color directions: from light-to-dark (LTOD) and from dark-to-light (DTOL). Three hypotheses were tested: 1) rate of change from DTOL is different than the rate from light-to-dark LTOD, 2) small fish change quicker than large fish and 3) rate will increase in the presence of a predator. As a group, sculpins changed faster from LTOD than DTOL. Small slimy sculpins (<5.0 cm ) changed faster from DTOL and large ones (>= 5.0 cm) changed faster from LTOD. Large sculpins increased their degree of color change in the presence of predators. The different rates of color change observed are likely due to a combination of physiological and behavioral constraints. http://deepblue.lib.umich.edu/bitstream/2027.42/55022/1/3463.pdf Description of 3463.pdf : Access restricted to on-site users at the U-M Biological Station. Report Cottus cognatus Slimy sculpin University of Michigan: Deep Blue |
institution |
Open Polar |
collection |
University of Michigan: Deep Blue |
op_collection_id |
ftumdeepblue |
language |
unknown |
topic |
Fishes VERTEBRATES BEHAVIOR COLOR CHANGE PREDATION AVOIDANCE ADAPTATION DISGUISE PIGMENTS CHROMATOPHORES Natural Resource and Environment Science |
spellingShingle |
Fishes VERTEBRATES BEHAVIOR COLOR CHANGE PREDATION AVOIDANCE ADAPTATION DISGUISE PIGMENTS CHROMATOPHORES Natural Resource and Environment Science Letourneau, Joe Cole, Scott D. Arnett, Fred Dermal disappearance: differences in cryptic color change in the slimy sculpin (Cottus cognatus). |
topic_facet |
Fishes VERTEBRATES BEHAVIOR COLOR CHANGE PREDATION AVOIDANCE ADAPTATION DISGUISE PIGMENTS CHROMATOPHORES Natural Resource and Environment Science |
description |
Cryptic behavior is an excellent anti-predator defense strategy, confounding search time and development of search images. Little research has been done on the effects of the presence of a predator on cryptic coloration. Our study reviewed the rate of cryptic color change in slimy sculpins (Cottus cognatus). A scale of six colors was devised to quantify color change. We characterized rates of change in two color directions: from light-to-dark (LTOD) and from dark-to-light (DTOL). Three hypotheses were tested: 1) rate of change from DTOL is different than the rate from light-to-dark LTOD, 2) small fish change quicker than large fish and 3) rate will increase in the presence of a predator. As a group, sculpins changed faster from LTOD than DTOL. Small slimy sculpins (<5.0 cm ) changed faster from DTOL and large ones (>= 5.0 cm) changed faster from LTOD. Large sculpins increased their degree of color change in the presence of predators. The different rates of color change observed are likely due to a combination of physiological and behavioral constraints. http://deepblue.lib.umich.edu/bitstream/2027.42/55022/1/3463.pdf Description of 3463.pdf : Access restricted to on-site users at the U-M Biological Station. |
author2 |
Biological Station, University of Michigan Ann Arbor |
format |
Report |
author |
Letourneau, Joe Cole, Scott D. Arnett, Fred |
author_facet |
Letourneau, Joe Cole, Scott D. Arnett, Fred |
author_sort |
Letourneau, Joe |
title |
Dermal disappearance: differences in cryptic color change in the slimy sculpin (Cottus cognatus). |
title_short |
Dermal disappearance: differences in cryptic color change in the slimy sculpin (Cottus cognatus). |
title_full |
Dermal disappearance: differences in cryptic color change in the slimy sculpin (Cottus cognatus). |
title_fullStr |
Dermal disappearance: differences in cryptic color change in the slimy sculpin (Cottus cognatus). |
title_full_unstemmed |
Dermal disappearance: differences in cryptic color change in the slimy sculpin (Cottus cognatus). |
title_sort |
dermal disappearance: differences in cryptic color change in the slimy sculpin (cottus cognatus). |
publishDate |
2004 |
url |
https://hdl.handle.net/2027.42/55022 |
op_coverage |
Maple River - West Branch UMBS Campus |
genre |
Cottus cognatus Slimy sculpin |
genre_facet |
Cottus cognatus Slimy sculpin |
op_relation |
Diagram or Illustration Graph Table of Numbers https://hdl.handle.net/2027.42/55022 |
_version_ |
1774716890291109888 |