+ Site Statistics
References:
54,258,434
Abstracts:
29,560,870
PMIDs:
28,072,757
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Evaluating biotic and abiotic influences on torrent salamanders in managed forests of western Oregon



Evaluating biotic and abiotic influences on torrent salamanders in managed forests of western Oregon



Wildlife Society BulletinWinter; 33(4): 1413-1424



To better understand the distribution and abundance of headwater-stream salamanders in managed conifer forests, we examined relationships between Cascade torrent salamanders (Rhyacotriton cascadae) and biotic and abiotic habitat attributes at landscape and within-stream levels in western Oregon, USA. In 2001 we found 145 torrent salamanders in 25% of 59 headwater (first-order) streams from randomly selected 2.58-km2 sections of the study area. Landscape-level variation in torrent salamander distribution and relative abundance were related to the age of adjacent riparian forests and to the landform features parent geology and stream aspect. In 2002 we conducted a more detailed study of salamander occurrence and abundance within 49 10-m stream reaches, stratified by gradient, that were randomly selected from 15 streams known to contain salamanders. We recorded 475 salamanders from 33 (67%) of the stream reaches. Akaike's Information Criterion (AIC) model selection indicated that a streambed substrate model best explained salamander occupancy in stream reaches, but a model containing only the parameter distance to stream origin and another model containing abiotic landform features also received strong empirical support. In contrast, the distance to stream origin model was the best candidate model explaining reach-level salamander abundance. However, 2 additional models explaining abundance, including one that discriminated between the northern and southern portions of our study area and another that reflected stream reach habitat parameters, also received strong empirical support. Physical features of stream habitats appear to have an important influence on the distribution and abundance of torrent salamanders at multiple spatial scales, and these parameters should be addressed when designing management strategies (e.g., riparian buffers) to conserve these species.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 012786860

Download citation: RISBibTeXText

DOI: 10.2307/3784916


Related references

Distribution and habitat of Columbia torrent salamanders at multiple spatial scales in managed forests of northwestern Oregon. Journal of Wildlife Management il; 68(2): 405-417, 2004

Biotic and abiotic influences on wind disturbance in forests of NW Pennsylvania, USA. Forest Ecology and Management 245(1-3): 44-53, 2007

Variable retention harvesting influences biotic and abiotic drivers of regeneration in Nothofagus pumilio southern Patagonian forests. Forest Ecology and Management, 2013

Evaluating Abiotic Influences on Soil Salinity of Inland Managed Wetlands and Agricultural Croplands in a Semi-Arid Environment. Wetlands 34(6): 1229-1239, 2014

Spotted owls in managed forests of western Oregon and Washington. Unknown, 1996

Spotted owls in managed forests of western Washington and Oregon. Journal of Raptor Research 28(1): 46-47, 1994

Vertebrate assemblages associated with headwater hydrology in western Oregon managed forests. Forest Science 53(2): 343-355, 2007

Diversity and succession of epiphytic macrolichen communities in low-elevation managed conifer forests in western Oregon. Journal of Vegetation Science 12(4): 511-524, 2001

Associations of forest-floor vertebrates with coarse woody debris in managed forests of western Oregon. Journal of Wildlife Management 64(1): 95-104, 2000

Variable density management in Riparian Reserves: lessons learned from an operational study in managed forests of western Oregon, USA. Forest Snow & Landscape Research 78(1-2): 151-172, 2004

Riparian buffer and density management influences on microclimate of young headwater forests of western Oregon. Forest Science 53(2): 254-269, 2007

Effects of biotic and abiotic factors on the distribution and abundance of larval two-lined salamanders (Eurycea bislineata) across spatial scales. Oecologia (Berlin) 133(2): 176-185, 2002

Effects of Biotic and Abiotic Factors on the Distribution and Abundance of Larval Two-Lined Salamanders (Eurycea bislineata) across Spatial Scales. Oecologia 133(2): 176-185, 2002

Effects of biotic and abiotic factors on the distribution and abundance of larval two-lined salamanders (Eurycea bislineata) across spatial scales. Oecologia 133(2): 176-185, 2002

Relative effects of biotic and abiotic processes: a test of the biotic-abiotic constraining hypothesis as applied to cutthroat trout. Transactions of the American Fisheries Society. May; 1343: 676-686, 2005