(360) 504-3825
104 N Laurel St Suite
110 Port Angeles, WA 98362



Peninsula Urban Forestry in the News and Other Publications

Peninsula Daily News – December 6, 2018

Sequoia Removal Still Stands: Port Angeles Council Agrees Decision is Administrative

PORT ANGELES — City Council members grappled with a controversial decision to remove an adored sequoia from Lions Park before agreeing that the decision rested with city staff.

The council agreed Tuesday night that the decision to cut the 110-foot, non-native tree is administrative…

Peninsula Daily News – April 27, 2018

Port Angeles Creates Tree Board for Tree City USA Status

PORT ANGELES — A group of tree enthusiasts has formed an advisory board that will assist the city of Port Angeles in all things forestry.

The Port Angeles Tree Board was born Tuesday from a grassroots effort to help the city regain its membership in the Arbor Day Foundation’s Tree City USA program…

Peninsula Daily News – April 20, 2018

Port Angeles Sequoia 105-Feet Tall Poses Danger, Should Come Down, Arborist Says

PORT ANGELES — A stately tree at Lions Park is slated for removal despite objections from a neighbor and other residents.

The roots of the 105-foot sequoia are causing damage to an adjacent property and its co-dominant stems pose a safety risk to park users, Corey Delikat, Port Angeles Parks and Recreation director, said in a memo to the City Council…

Environmental Entomology (Scientific Journal) – March 20, 2017

Pretty Picky for a Generalist: Impacts of Toxicity and Nutritional Quality on Mantid Prey Processing

Prey have evolved a number of defenses against predation, and predators have developed means of countering these protective measures. Although caterpillars of the monarch butterfly, Danaus plexippus L., are defended by cardenolides sequestered from their host plants, the Chinese mantid Tenodera sinensis Saussure guts the caterpillar before consuming the rest of the body.

We hypothesized that this gutting behavior might be driven by the heterogeneous quality of prey tissue with respect to toxicity and/or nutrients…

Insects (Scientific Journal) – October, 2016

Impact of an Invasive Insect and Plant Defense on a Native Forest Defoliator

Eastern hemlock (Tsuga canadensis [L.] Carriére) in the United States is threatened by the invasive hemlock woolly adelgid (Adelges tsugae Annand). The native hemlock looper (Lambdina fiscellaria Guenée) also appears to have played a role in previous population declines of this conifer. Although these two insects co-occur in much of the adelgid’s invaded range, their interactions remain unstudied.

We assessed looper performance and preference on both uninfested and adelgid-infested foliage from adelgid-susceptible hemlocks, as well as on uninfested foliage from an eastern hemlock that is naturally adelgid-resistant…

Forest Ecology and Management (Scientific Journal) – March, 2015

Hemlock Woolly Adelgid Alters Fine Root Bacterial Abundance and Mycorrhizal Associations in Eastern Hemlock

While the impact of aboveground herbivores on plant biomass and fitness has received considerableattention, there has been far less research on the corresponding belowground impacts. The belowgroundeffects of aboveground feeding may be particularly noticeable for invasive and/or outbreaking herbivorespecies that reach high densities and can cause major damage and sometimes death.

The hemlock woollyadelgid, Adelges tsugae, is an invasive pest on the eastern seaboard of the United States that feeds on anative shade-tolerant conifer, the eastern hemlock Tsuga canadensis. Trees rapidly decline and diefollowing infestation, and the invasion of this insect has devastated hemlock populations from Georgiain the south to Maine in the north…

Entomological Society of America (Conference Paper) – November, 2013

Prey Handling of Toxic and Non-toxic Lepidopteran Prey by Chinese Mantid, Tenodera sinensis

Monarch caterpillars, Danaus plexippus, sequester toxic cardenolides from milkweed plants. This defense is effective against most predators, but the Chinese mantid, Tenodera sinensis, is able to consume them without any apparent ill effects. It has been shown that mantids consume monarch caterpillars by gutting them, allowing the gut material to fall from the prey without further consumption.

They do not engage in this behavior when consuming non-toxic European corn borers, Ostrinia nubilalis, or wax worms, Galleria mellonella, suggesting avoidance of prey toxicity. We tested the prey toxicity hypothesis and the alternative hypothesis that the gutting behavior reflects a more generalized avoidance of lower-quality (i.e., less-nutritive) plant material…

Harvard Forest (Blog) – July, 2013

Wool-Wearing Villains

Clashing, crashing, smashing–the once hearty hemlock heaves its now crippled form to the forest floor. What brings this mighty tree to its knees? Was it the axe man, his barrel chest booming with each thunderous blow? Was it the furious gusts of a gale going through the eastern hemlock stand, singing songs of sorrow?

NAY!!!  The culprit creeps covertly along unsuspecting branches, before driving deep its dark feeder into the base of a hemlock needle: an invasive insect, a vile villain, the herald of misfortune for hemlocks all along the eastern lands. They drain the vigor from their victims not for vengeance, but for an unrelenting and unreasonable will to have all hemlocks bow before their kind. It’s the hemlock woolly adelgid! These white wool-wearing devils must have their advance stalled, so I study their ways…

URI Today – July, 2013

URI Students Studying Ecology, Pests at Harvard Forest

KINGSTON, R.I. – July 16, 2013 – Two students at the University of Rhode Island are spending the summer studying forest ecology as part of the Harvard Forest Summer Research Program, a prestigious Harvard University initiative that teams students with faculty mentors for 11 weeks of environmental research.

Arline Gould of Providence and Justin Vendettuoli of North Kingstown, both majoring in wildlife and conservation biology, were among 26 students from around the country chosen from 600 applicants to conduct research at the Harvard Forest in Petersham, Mass…

Center for Sustainable Forestry
at Pack Forest (Essay) – 2009

Experimental Forests as a Gateway Protection of Ecosystem Services Through Sustainable Forest Management

Individuals around the globe are joining the initiative to keep a “green space.” By keeping an area growing with plant life, photosynthesis and all the marvelous components associated help to better the environment through temperature regulation, conversion of carbon dioxide to oxygen, sequestration of carbon, and in some cases, erosion control.

The idea is to not only help offset the carbon foot print we ‘stomp’ on the earth as continuous consumers, but to provide benefits that are reduced as we increasingly impact and change the surrounding landscape. We will feel the unmitigated effects of global climate change as deforestation continues and ‘city trees’ disappear because we are less protected without our living filters…