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The Rocky Mountain Biological Laboratory (RMBL; Colorado, USA) is the site for many research projects spanning decades, taxa, and research fields from ecology to evolutionary biology to hydrology and beyond. Climate is the focus of much of this work and provides important context for the rest. There are five major sources of data on climate in the RMBL vicinity, each with unique variables, formats, and temporal coverage. These...
Extensive regional variation in the phenology of insects and their response to temperature across N orth A mericaNARA Subscribed
Climate change models often assume similar responses to temperatures across the range of a species, but local adaptation or phenotypic plasticity can lead plants and animals to respond differently to temperature in different parts of their range. To date, there have been few tests of this assumption at the scale of continents, so it is unclear if this is a large‐scale problem. Here, we examined the assumption that insect taxa...
Lagged and dormant season climate better predict plant vital rates than climate during the growing seasonNARA Subscribed
Understanding the effects of climate on the vital rates (e.g., survival, development, reproduction) and dynamics of natural populations is a long‐standing quest in ecology, with ever‐increasing relevance in the face of climate change. However, linking climate drivers to demographic processes requires identifying the appropriate time windows during which climate influences vital rates. Researchers often do not have access to th...
Detrending phenological time series improves climate–phenology analyses and reveals evidence of plasticityNARA Subscribed
Time series have played a critical role in documenting how phenology responds to climate change. However, regressing phenological responses against climatic predictors involves the risk of finding potentially spurious climate–phenology relationships simply because both variables also change across years. Detrending by year is a way to address this issue. Additionally, detrending isolates interannual variation in phenology and...
Effect of mutualist partner identity on plant demographyNARA Subscribed
Mutualisms play a central role in the origin and maintenance of biodiversity. Because many mutualisms have strong demographic effects, interspecific variation in partner quality could have important consequences for population dynamics. Nevertheless, few studies have quantified how a mutualist partner influences population growth rates, and still fewer have compared the demographic impacts of multiple partner species. We used...
Maintenance of temporal synchrony between syrphid flies and floral resources despite differential phenological responses to climateNARA Subscribed
Variation in species’ responses to abiotic phenological cues under climate change may cause changes in temporal overlap among interacting taxa, with potential demographic consequences. Here, we examine associations between the abiotic environment and plant–pollinator phenological synchrony using a long‐term syrphid fly–flowering phenology dataset (1992–2011). Degree‐days above freezing, precipitation, and timing of snow melt w...
Stochastic and deterministic drivers of spatial and temporal turnover in breeding bird communitiesNARA Subscribed
Aim A long‐standing challenge in ecology is to identify the suite of factors that lead to turnover in species composition in both space and time. These factors might be stochastic (e.g. sampling and priority effects) or deterministic (e.g. competition and environmental filtering). While numerous studies have examined the relationship between turnover and individual drivers of interest (e.g. primary productivity, habitat hetero...
Effects of N, P, and organic carbon on stream biofilm nutrient limitation and uptake in a semi‐arid watershedNARA Subscribed
We examined the effect of agricultural land use on whole‐stream nutrient availability, biofilm standing crop, and biofilm nutrient limitation and uptake in 21 stream locations in southeastern Idaho. Higher stream water concentrations of dissolved organic carbon (DOC), but not nitrate (NO 3 ‐N) or phosphate (PO 4 ‐P), were associated with % agriculture in the watershed. Streambed chlorophyll a (Chl a ) and ash free dry weight (...
Asynchronous changes in phenology of migrating Broad‐tailed Hummingbirds and their early‐season nectar resourcesNARA Subscribed
Phenological advancements driven by climate change are especially pronounced at higher latitudes, so that migrants from lower latitudes may increasingly arrive at breeding grounds after the appearance of seasonal resources. To explore this possibility, we compared dates of first arrival of Broad‐tailed Hummingbirds ( Selasphorus platycercus ) to dates of flowering of plants they visit for nectar. Near the southern limit of the...
Ecology Letters (2012) Abstract Shifts in species’ phenology in response to climate change have wide‐ranging consequences for ecological systems. However, significant variability in species’ responses, together with limited data, frustrates efforts to forecast the consequences of ongoing phenological changes. Herein, we use a case study of three North American plant communities to explore the implications of variability across...
Intercomparison, interpretation, and assessment of spring phenology in North America estimated from remote sensing for 1982–2006NARA Subscribed
Shifts in the timing of spring phenology are a central feature of global change research. Long‐term observations of plant phenology have been used to track vegetation responses to climate variability but are often limited to particular species and locations and may not represent synoptic patterns. Satellite remote sensing is instead used for continental to global monitoring. Although numerous methods exist to extract phenologi...
CorrectionNARA Subscribed
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