uid=HFR,o=lter,dc=ecoinformatics,dc=org all public read doi:10.6073/pasta/a8494556241091b96db57e58d43dccd7 Brooks Mathewson Elizabeth Colburn David Foster https://orcid.org/0000-0003-1171-3762 Researcher 2023 English

Despite reductions in prices, pre-emptive salvage logging of eastern hemlock stands has increased since the arrival of eastern hemlock woolly adelgid (Adelges tsugae, HWA) into this region. The microenvironmental changes associated with eastern hemlock loss have been found to be even more severe than when stands are lost to logging due to HWA infestation. This study assessed the effects of a commercial logging operation on two 90m x 90m (0.8 ha) plots, conducted in the winter of 2004-2005, on eastern redback salamander (Plethodon cinereus) relative abundance within the Simes tract at Harvard Forest. Over the past seven seasons (fall 2003 - fall 2005; excluding winter) I have been monitoring eastern redback salamander relative abundance using artificial cover objects (ACOs). The objectives of this study were 1) to assess whether logging has an impact on redback relative abundance at a plot level 2) to assess whether logging in isolated plots has an impact on relative abundance throughout the entire Simes tract 3) to assess whether redback relative abundance is stable over two years. Redback relative abundance in spring 2005 was 660% lower than in spring 2004 in logged plots, while in unlogged plots there was a 4% increase in redback relative abundance in spring 2005 versus spring 2004 (one-way ANOVA; df = 7, F = 6.21, p less than 0.05). Between fall 2004 and spring 2005 redback relative abundance decreased by 727% in the logged plots, compared to only a 29% decrease in unlogged plots (one-way ANOVA; df = 7, F = 10.51, p less than 0.05). Plots adjacent to logged plots had a significantly higher increase in redback relative abundance in spring 2005 versus spring 2004 than those not adjacent to the logged plots (one-way ANOVA; df = 5, F = 8.64, p less than 0.05). There was no significant difference in redback relative abundance in all plots in spring 2004 versus spring 2005 (one-way ANOVA; df = 15, F = 0.20, p = 0.665), or in fall 2004 versus spring 2005 (one-way ANOVA; df = 15, F = 0.03, p = 0.859). Further, the annual difference in redback relative abundance in the fall over three years indicates that the redback population has been extremely stable during this period (one-way ANOVA; df = 23, F = 0.05, p = 0.954).

hemlock hemlock woolly adelgid salamanders timber harvest LTER controlled vocabulary populations disturbance land use LTER core area Harvard Forest HFR LTER USA HFR default

This dataset is released to the public under Creative Commons CC0 1.0 (No Rights Reserved). Please keep the dataset creators informed of any plans to use the dataset. Consultation with the original investigators is strongly encouraged. Publications and data products that make use of the dataset should include proper acknowledgement.

Creative Commons Zero v1.0 Universal https://spdx.org/licenses/CC0-1.0.html CC0-1.0 https://harvardforest.fas.harvard.edu/exist/apps/datasets/showData.html?id=hf038 Simes Tract (Harvard Forest). Coordinates based on WGS84 datum. -72.218 -72.211 +42.480 +42.466 225 240 meter 2003 2005 genus Adelges species tsugae hemlock woolly adelgid genus Plethodon species cinereus eastern redback salamander complete Information Manager Harvard Forest

324 North Main Street Petersham MA 01366 USA

(978) 724-3302 hf-im@lists.fas.harvard.edu Harvard Forest

324 North Main Street Petersham MA 01366 USA

(978) 724-3302 (978) 724-3595 https://harvardforest.fas.harvard.edu

In each of the eight experimental plots at Simes four artificial cover object (ACO) stations were set up. Each ACO station consists of one rough-cut eastern hemlock board (1m x 0.25m x 2cm) and one asphalt shingle (1m x 0.25m). ACO stations were monitored between two and five times per season.

Harvard Forest

324 North Main Street Petersham MA 01366 USA

(978) 724-3302 (978) 724-3595 https://harvardforest.fas.harvard.edu https://ror.org/059cpzx98 pointOfContact The Harvard Forest Long-Term Ecological Research (LTER) program examines ecological dynamics in the New England region resulting from natural disturbances, environmental change, and human impacts. National Science Foundation LTER grants: DEB-8811764, DEB-9411975, DEB-0080592, DEB-0620443, DEB-1237491, DEB-1832210. hf038-01-salamander.csv salamander data hf038-01-salamander.csv 6232 e065b69c48d661652dd36229a8a88827 1 \r\n column , https://harvardforest.fas.harvard.edu/data/p03/hf038/hf038-01-salamander.csv aco artificial cover object number artificial cover object number asn aco station number aco station number plot plot number plot number aco.name original name given to ACO. First two letters are for Simes. Second two letters indicate forest type (TS = hemlock, HW = hardwood or mixed deciduous). First number indicates replicate number of forest type. Following letter indicates which transect ACO is perpendicular to (S = South, N = North, E = East, W = West). Next letter indicates whether ACO is board (B) or shingle (S). Next number indicates position along transect (2 = 20 meters from origin, 7 = 70 meters from origin). original name given to ACO ft forest type HW hardwood or mixed deciduous TS hemlock treatment logging treatment Control control Girdled girdled Logged logged lat latitude of ACO latitude of ACO long longitude of ACO longitude of ACO datum datum for latitude and longitude coordinates datum for latitude and longitude coordinates fa03n number of times ACO was monitored in fall 2003 number 1 natural NA missing value fa03avg average number of redbacks found during ACO searches in fall 2003 number 0.01 real NA missing value sp04n number of times ACO was monitored in spring 2004 number 1 natural NA missing value sp04avg average number of redbacks found during ACO searches in spring 2004 number 0.01 real NA missing value su04n number of times ACO was monitored in summer 2004 number 1 natural NA missing value su04avg average number of redbacks found during ACO searches in summer 2004 number 0.01 real NA missing value fa04n number of times ACO was monitored in fall 2004 number 1 natural NA missing value fa04avg average number of redbacks found during ACO searches in fall 2004 number 0.01 real NA missing value sp05n number of redbacks found during ACO searches in spring 2005 number 1 natural NA missing value sp05avg average number of redbacks found during ACO searches in spring 2005 number 0.01 real NA missing value su05n number of times ACO was monitored in summer 2005 number 1 natural NA missing value su05avg average number of redbacks found during ACO searches in summer 2005 number 0.01 real NA missing value fa05n number of times ACO was monitored in fall 2005 number 1 natural NA missing value fa05avg average number of redbacks found during ACO searches in fall 2005 number 0.01 real NA missing value 64 plot community short-term measurement https://harvardforest.fas.harvard.edu/exist/apps/datasets/showData.html?id=hf075