A5010486108- Forest Insect Ecology and Management
- Ecology and Vegetation Dynamics Studies
- Biological Control of Invasive Species
- Fire effects on ecosystems
- Species Distribution and Climate Change
- Insect-Plant Interactions and Control
- Wildlife Ecology and Conservation
- Allelopathy and phytotoxic interactions
- Forest Management and Policy
- Animal Ecology and Behavior Studies
- Plant and animal studies
- Forest ecology and management
- Forest Ecology and Biodiversity Studies
- Botany, Ecology, and Taxonomy Studies
- Weed Control and Herbicide Applications
- Entomological Studies and Ecology
- Insect and Pesticide Research
- Insect behavior and control techniques
- Plant Water Relations and Carbon Dynamics
- Plant and fungal interactions
- Ecology and Conservation Studies
- Tropical and Extratropical Cyclones Research
- Avian ecology and behavior
- Entomopathogenic Microorganisms in Pest Control
- Pesticide Exposure and Toxicity
National Park Service
2016-2024
Temper (United States)
2023-2024
Michigan State University
2020
Dartmouth College
2012-2016
University of Massachusetts Amherst
2016
University of Idaho
2014
University of Rhode Island
2009-2012
University of Florida
2005
About one‐third of North America is forested. These forests are incalculable value to human society in terms harvested resources and ecosystem services sensitive disturbance regimes. Epidemics forest insects diseases the dominant sources American forests. Here we review current understanding climatic effects on abundance America, ecological socioeconomic impacts biotic disturbances. We identified 27 (6 nonindigenous) 22 (9 that notable agents The distribution pathogens respond rapidly...
Bark beetles are among the most devastating biotic agents affecting forests globally and several species expected to be favored by climate change. Given potential interactions of insect outbreaks with other abiotic disturbances, potentially strong impact changing disturbance regimes on forest resources, investigating climatic drivers destructive bark beetle is paramount importance. We analyzed 17 time‐series amount wood damaged Ips typographus , pest Norway spruce forests, collected across 8...
Climate change is altering legacies of native insect-caused disturbances and contributing to non-native invasions globally. Many insect fitness traits are temperature dependent projected climatic changes expected cause continued alterations in tree mortality, with uncertain consequences for forest ecosystems their management. Dendroctonus ponderosae Pinus habitats western North America Ips typographus European Picea among the most significant mortality agents on each continent. Changing...
Abstract Changing forest disturbance regimes and climate are driving accelerated tree mortality across temperate forests. However, it remains unknown if elevated has induced decline of populations the ecological, economic, social benefits they provide. Here, we develop a standardized demographic index use to quantify trends in population dynamics over last two decades western United States. The rate pattern change observe species size-distributions is alarming often undesirable. We...
Abstract Aim Species distribution models (SDMs) are increasingly applied across macroscales using detection‐nondetection data. These typically assume that a single set of regression coefficients can adequately describe species–environment relationships and/or population trends. However, such often show nonlinear spatially varying patterns arise from complex interactions with abiotic and biotic processes operate at different scales. Spatially coefficient (SVC) readily account for variability...
Monitoring wildlife abundance across space and time is an essential task to study their population dynamics inform effective management. Acoustic recording units are a promising technology for efficiently monitoring bird populations communities. We present integrated modeling framework that combines high-quality but temporally sparse point count survey data with acoustic recordings. Using simulations, we compare the accuracy precision of estimates using differing amounts vocalizations...
Advanced regeneration, in the form of tree seedlings and saplings, is critical for ensuring long-term viability resilience forest ecosystems eastern United States. Lack regeneration and/or compositional mismatch between canopy layers, called debt, can lead to shifts composition, structure, and, extreme cases, loss. In this study, we examined status trends across 39 national parks from Virginia Maine, spanning 12 years apply debt concept. We further refined concept by adding new metrics...
Summary Resource availability and natural enemies are among the most commonly cited mechanisms affecting competitive ability of invasive plants, but their simultaneous effects on plant dynamics seldom evaluated in field. Understanding how endogenous exogenous factors affect abundance is essential when evaluating impact classical weed biological control agents because misinterpretations regulating demography may bias inference herbivore impact. In this study, we report results from a...
Insect populations are affected by density-dependent and density-independent factors, knowing how these factors affect long-term population growth is critical to pest management. In this study, we experimentally manipulated densities of the hemlock woolly adelgid on eastern western trees in USA evaluate effects density host species crawler colonization. We then followed development each species. Settlement crawlers was strongly consistent between addition, a period hot days that coincided...
Abstract We analyzed land‐cover and forest vegetation data from nearly 25,000 permanent plots distributed across 50 national parks in the eastern United States, along with matrix around each park, to examine structural characteristics of park forests relation their surrounding landscape. Over 2000 these are part National Park Service ( NPS ) Inventory Monitoring Program (I&M), remaining 22,500+ US Forest USFS Analysis FIA Program. This is first study compare structure protected lands...
Journal Article Host Specificity of Hypena opulenta: A Potential Biological Control Agent Vincetoxicum in North America Get access Alex F. Hazlehurst, Hazlehurst 2 1Department Plant Sciences and Entomology, University Rhode Island, Kingston, RI 02881. 2Corresponding author, e-mail: afhazlehurst@gmail.com. Search for other works by this author on: Oxford Academic PubMed Google Scholar Aaron S. Weed, Weed 02881.3Department Sciences, Dartmouth College, Hanover, NH 03755. Lisa Tewksbury,...
Abstract Understanding how biological communities respond to global change is important for the conservation of functioning ecosystems as anthropogenic environmental threats increase. National parks within United States provide unique ecological and cultural resources that can help conserve biodiversity maintain integrity, especially in heavily urbanized environments. Parks Capital Region ( NCRN ) Mid‐Atlantic MIDN Networks, representing federally protected areas located a mixed landscape...
While invasive plant distributions are relatively well known in the eastern United States, temporal changes species and interactions among have received little attention. Managers therefore left to make management decisions without knowing which pose greatest threats based on their ability spread, persist outcompete other species. To fill this gap, we used U.S. National Park Service's Inventory Monitoring Program data collected from over 1,400 permanent forest plots spanning 12 yr covering...
In the USA, lack of systematic post-release assessments weed biological control projects demonstrating quantitative effects agents on target densities, population biology, and/or vegetation responses remain a concern. While there are numerous assessments, overall conclusions limited in scope by spatial scale covered, duration study, potentially confounding factors, or parameters measured. The United States Department Agriculture's Animal Plant Health Inspection Service is regulatory agency...
Exploratory surveys were conducted in Europe to locate potential biological control agents of Vincetoxicum nigrum and rossicum collect known specialist herbivores hirundinaria (Abrostola asclepiadis, Chrysolina a. Eumolpus asclepiadeus Euphranta connexa). Development the most abundant found attacking leaves, roots, developing seeds was evaluated laboratory on three spp. Field revealed that highest diversity associated with widespread V. hirundinaria. No new reported from or nigrum, but...
Resolving linkages between local‐scale processes and regional‐scale patterns in abundance of interacting species is important for understanding long‐term population stability across spatial scales. Landscape patterning consumer dynamics may be largely the result interactions consumers their predators, or driven by variation basal resources. Empirical testing these alternatives has been limited lack suitable data. In this study, we analyzed an extensive network spatially replicated time...