Compounding disturbances from insects and extreme weather are becoming more widespread in North American forests and the consequences for individual species as well as the temporal stability of net primary production are poorly understood. Before understanding how temporal stability of net primary production is affected by disturbance and extreme weather, the terms in the context of this study must be defined. Disturbance from insects is characterized by its severity, which is defined by the intensity and duration of the disturbance (Goetz et al., 2012). Net primary production will be studied and evaluated as above-ground wood net primary production taken from stem diameter interannual increments (ANPPw henceforth). It is also important to understand the effects of each individual factor on the net primary production of forests in order to comprehend the concept of temporal stability of forests. The effect of insect disturbance on productivity has been widely studied in Eastern and Western forests of North America. However, there are many variables that determine the increase, decrease or neutrality of productivity in a forest. Some of these are the severity and duration of disturbance, climate, vegetation and the carbon pools that are already available (Goetz et al., 2012). Essentially, a holistic view of the forest must be attained in order to predict the overall changes in carbon sequestration. At the University of Michigan Biological Station, a decadal study from the Ameriflux project has been conducted with regards to moderate defoliation of canopy trees, simulating insect invasion. The disturbance severity had an intensity of 40% canopy tree and its duration was short-term. The forest is early successional (mainly Populus and Betula), transitioning into mid-successional (mainly Quercus, Acer, and Pinus) and has been a consistent carbon pool over the past century (Gough et al., 2008). This body of literature indicates an overall positive trend for productivity, in that, this type of moderate defoliation by girdling increased productivity of the disturbed stand over a period of 13 years (Gough et al., 2013, Gough et al., 2016, Gough et al. 2021). Climate change has been found to increase productivity in Eastern North American forests, compared to Western North American forests. It is interesting to see where this phenomenon is mild compared to Western North American forests. One study utilizing forest inventory plots from across the United States, suggests such a finding (Hogan et al., 2024). The opposite effect on productivity has been found in Western North American forests, where climate change has been much harsher. Additionally, because of the intensity of climate change in the West, it is evident that the order of these two factors has been reversed, especially in the Western Mountains of Oregon (Goetz et al., 2012). Having defined the basic concepts, we arrive at the focus of this study: temporal stability of ANPPw, as opposed to ANPPw. Temporal stability in ecology is defined as the variability in an ecosystem process over time. It is calculated as the coefficient of variance (CV henceforth) of a single parameter, which is the ratio between standard deviation and mean. ANPPw has been found to have high temporal stability when disturbance is severe in two chronosequences (i.e. low CV), and low temporal stability in the reference late successional stands (i.e. high CV). (Wales et al., 2020). Objective 1: Evaluate whether a moderate severity disturbance killing 40% of all mature canopy trees increases sensitivity to anomalous annual mean photosynthetically active radiation (PAR) measured in umol/m^2*s^1; average annual air temperature measured in degrees Celsius; yearly precipitation in cm; soil temperature at 7.5 cm in degrees Celsius and soil moisture content (vol/vol) , thereby increasing the temporal stability of stand ANPPw (i.e. lower CV). Utilizing 17-year datasets from control and disturbed sites, I will analyze environmental data and biological data (as diameter increments in cm to convert into mass in kg to convert into ANPPw in kg/ha/yr) to evaluate stand-scale climate-disturbance interactions. Hypothesis 1: I hypothesize that a phloem-disrupting disturbance eliminating 40% of all canopy trees compounded with annual climate anomalies will stabilize stand-level temporal stability of ANPPw because each tree species complements the other (Gough et al. 2021). Objective 2: Evaluate whether a moderate severity disturbance killing 40% of all mature canopy trees increases sensitivity to anomalous annual mean photosynthetically active radiation (PAR) measured in umol/m^2*s^1; average annual air temperature measured in degrees Celsius; yearly precipitation in cm; soil temperature at 7.5 cm in degrees Celsius and soil moisture content (vol/vol) , thereby reducing the temporal stability of species ANPPw (i.e. higher CV). Utilizing 17-year datasets from control and disturbed sites, I will analyze environmental data and biological data (as diameter increments in cm to convert into mass in kg to convert into ANPPw in kg/ha/yr) to evaluate species-scale climate-disturbance interactions. Hypothesis 2: Disturbance will decrease species’ temporal stability of ANPPw in reference to treatment and control plots because of the nature of girdling. The early-successional species will suffer, thus having low temporal stability (i.e. high CV) and the mid-successional species will flourish and still have a low temporal stability (i.e. high CV) because they will be compensating for the dying trees’ lack of growth.