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The egg mass is very firm, it feels much like a brain with a jelly layer around the entire mass. The individual eggs are 2 mm diameter with the entire egg mass the size of your fist. The egg masses are laid in water about 0.5– 2 meters below the surface.
555:
Wildlife and
Vegetation of Unmanaged Douglas-fir Forests, General Technical Report PNW-GTR-285. Ruggiero, L. F., Aubry, K. B., Carey, A. B., and Huff, M. H., technical coordinators, eds., USDA Forest Service, Northwest Research Station, Olympia, Washington.,
395:, however, seems to render the habitat unsuitable; no salamanders were found on recent clear-cuts. Leaving a forest buffer of 200–250 m surrounding breeding sites used by terrestrial adults may preserve optimal environmental conditions for local populations.
569:
Wildlife and
Vegetation of Unmanaged Douglas-fir Forests, General Technical Report PNW-GTR-285. K. Ruggiero, B. Aubry, A. B. Carey, and M. H. Huff, technical coordinators, eds., USDA Forest Service, Pacific Northwest Research Station, Olympia, Washington.,
42:
348:, and are usually active on the surface only during fall rains and spring migrations to their aquatic breeding sites. However, they can sometimes be found under logs and other surface debris outside of the
528:
Blaustein, A. R., Wake, D. B., and Sousa, W. P. (1994). "Amphibian declines: Judging stability, persistence, and susceptibility of populations to local and global extinctions." Conservation
Biology, 8(1),
383:
is far less abundant in young forests than in old-growth forests. However, a survey in western Oregon found little correlation between salamander abundance and stand age, so it remains unclear whether
269:
The hatchlings are 1-35mm long with feathery gills on the side of the body. The juveniles are 16– 105 mm long from their snout to vent. Adults are 40–107 mm long from their snout to vent.
355:
Adult salamanders eat small terrestrial invertebrates such as insects, worms, and arachnids. Larvae and juveniles consume aquatic invertebrates including snails, worms, and tadpoles.
311:
adults increases with altitude such that adults at low and intermediate altitudes are almost all terrestrial, while adults at very high elevations are mostly neotenic. An example of a
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899:
221:
that inhabits the northwest
Pacific coast of North America. These fairly large salamanders grow to 8.7 in (220 mm) in length. It is found from southeastern
794:
486:
A comparison of the life histories and growth patterns of populations of the salamander
Ambystoma gracile (Baird) from permanent low-altitude and montane lakes.
884:
706:
745:
504:
519:
Efford, I. E. and
Mathias, J. A. (1969). "A comparison of two salamander populations in Marion Lake, British Columbia." Copeia, 1969, 723-736.
894:
659:
282:
654:
750:
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Petranka, J. W. (1998). Salamanders of the United States and Canada. Smithsonian
Institution Press, Washington and London.
667:
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Amphibians in
Decline: Canadian Studies of a Global Problem. D. M. Green, eds., Herpetological Conservation, 309-328.
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and The San Juan
Islands, Cypress, Whidbey, Bainbridge, and Vashon Islands in Washington.
218:
157:
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Snyder, R.C. 1963. Ambystoma gracile. Catalogue of
American Amphibians and Reptiles: 1-2.
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The spotted forms occur in the northern portion of its range. A dividing line of
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Terrestrial amphibian communities in the southern Washington Cascade Range.
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Viable A. gracile egg mass suspended above water as water level dropped.
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245:. It occurs from sea level to the timberline, but not east of the
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latitude has been recognized between the two subspecies, with
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Terrestrial amphibian communities in the Oregon Coast Range.
540:
Checklist and current status of Canadian amphibians.
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populations is unknown. No declines are apparent in
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population of the northwestern salamander occurs at
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436:10.2305/IUCN.UK.2015-4.RLTS.T59057A56458627.en
8:
411:IUCN SSC Amphibian Specialist Group (2015).
488:Canadian Journal of Zoology, 54, 2098-2111.
379:. In the Cascade Mountains of Washington,
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40:
31:
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457:
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307:adults are widespread; the frequency of
502:, Globaltwitcher, ed. Nicklas Stromberg
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344:forests. Terrestrial adults are mostly
551:Aubry, K. B., and Hall, P. A. (1991).
500:Rough-skinned Newt (Taricha granulosa)
900:Taxa named by Spencer Fullerton Baird
7:
565:Corn, P. S. and Bury, R. B. (1991).
538:Weller, W. and Green, D. M. (1997).
885:IUCN Red List least concern species
422:IUCN Red List of Threatened Species
281:A Northwestern salamander found in
25:
296:occurring north of the line and
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1:
895:Amphibians described in 1859
371:The conservation status of
340:ranging from grasslands to
336:Terrestrial adults live in
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233:south to the mouth of the
283:Langley, British Columbia
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179:
81:Scientific classification
79:
57:
48:
39:
34:
497:C. Michael Hogan (2008)
484:Eagleson, G. W. (1976).
273:Distribution and habitat
35:Northwestern salamander
225:on May Island, through
209:northwestern salamander
18:Northwestern Salamander
368:
285:
834:Paleobiology Database
429:: e.T59057A56458627.
366:
300:living to the south.
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249:. Its range includes
323:; the population is
27:Species of amphibian
51:Conservation status
507:2009-05-27 at the
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294:A. g. decorticatum
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217:) is a species of
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871:
821:Open Tree of Life
660:Ambystoma-gracile
634:Ambystoma_gracile
620:Ambystoma gracile
590:Ambystoma gracile
582:Taxon identifiers
415:Ambystoma gracile
389:old growth forest
373:Ambystoma gracile
330:Taricha granulosa
303:Populations with
214:Ambystoma gracile
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190:Ambystoma gracile
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16:(Redirected from
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890:Mole salamanders
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359:Conservation
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847:SeaLifeBase
782:NatureServe
720:iNaturalist
642:AmphibiaWeb
614:Wikispecies
442:12 November
391:to thrive.
317:Crater Lake
261:Description
879:Categories
399:References
385:A. gracile
381:A. gracile
342:mesophytic
243:California
227:Washington
387:requires
346:fossorial
166:Species:
159:Ambystoma
104:Kingdom:
98:Eukaryota
787:2.103251
738:10856057
605:Q1945272
599:Wikidata
570:304-317.
556:326-338.
505:Archived
325:syntopic
305:neotenic
144:Family:
128:Amphibia
118:Chordata
114:Phylum:
108:Animalia
94:Domain:
71:IUCN 3.1
712:2431998
699:1018890
200:, 1859)
154:Genus:
138:Urodela
134:Order:
124:Class:
69: (
859:uBio:
839:415267
813:201499
751:173597
673:142735
529:60-71.
377:Canada
321:Oregon
309:gilled
231:Oregon
223:Alaska
862:25742
852:61332
800:59636
771:NAS:
764:59057
733:IRMNG
725:26747
327:with
198:Baird
826:9245
795:NCBI
774:2946
759:IUCN
746:ITIS
707:GBIF
686:CQ44
668:BOLD
647:3833
444:2021
427:2015
290:51°N
229:and
207:The
694:EoL
681:CoL
655:ASW
629:ADW
431:doi
253:in
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466:^
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211:(
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20:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
