Counting marmots…
Weaves together natural history observations, research on climate-driven phenological mismatches, and land management concerns across high-elevation Rocky Mountain ecosystems, with threads connecting wildlife, wildflowers, avalanche patterns, and conservation planning in the Gunnison Basin.
The high-elevation ecosystems surrounding Gothic, Colorado, in the Upper Gunnison Basin offer one of the most valuable natural laboratories in North America for studying how mountain environments respond to environmental change. Alpine and subalpine systems are characterized by short growing seasons, deep winter snowpack, and tightly synchronized biological events — the emergence of wildflowers, the flight of butterflies, the breeding of birds, and the awakening of marmots all happen within narrow windows tied to snowmelt and temperature. Because these windows are short and shifting, even small changes in climate can have outsized consequences for the plants and animals that depend on them.
A few key concepts help make sense of the research that follows. Phenology is the timing of recurring biological events — when a flower blooms or a hibernator emerges. When climate change shifts the timing of one event but not another that depends on it — for example, if pollinators emerge before their host flowers bloom — the result is a phenological mismatch, which can reduce food availability and reproductive success. Hibernation and torpor are physiological strategies for surviving energy shortages: marmots hibernate through winter, while hummingbirds drop into nightly torpor to conserve energy. Overwinter survival, especially for juveniles, is a major bottleneck in mountain populations. Researchers also study early life adversity, sometimes summarized through a cumulative adversity index that adds together hardships experienced before sexual maturity, to understand how conditions in a single difficult year ripple through an animal's lifetime.
Methodologically, mountain ecologists rely heavily on long-term monitoring and on common garden experiments, where seeds collected across an elevation gradient are planted side-by-side in standardized plots to separate genetic differences from environmental ones. Because mountain research often unfolds across decades, science communication — sharing findings beyond technical journals to land managers, ranchers, and the public — is central to translating discoveries into stewardship of the Gunnison Basin.
Much of the early scientific identity of the Upper Gunnison Basin was shaped by inventories and assessments that documented why these landscapes matter. Local and regional surveys identified biologically significant areas, endemic plants, and the genetic isolation typical of high-altitude biology Biologically Significant Areas in Gunnison County Colorado, while early summaries of work at the Rocky Mountain Biological Laboratory established Gothic as a hub for plant taxonomy, animal behavior, population genetics, and pollination ecology . Alongside these biological foundations, geological and physical-environment studies — including descriptions of the Black Canyon of the Gunnison and analyses of natural avalanche activity in the mountains around Gothic — established the physical template on which alpine communities are built.
Anthropogenic environmental change expected to alter soil moisture availability and increase nitrogen deposition
Food availability timing related to snow melt and vegetation growth potentially mismatched with juvenile foraging periods
A life-history trait that buffers marmots against climate change by allowing them to escape changes in climate and effectively expand their ecological...
Quantitative measure that sums multiple adversity measures experienced during early life to assess overall adversity burden
The practice of communicating scientific findings in creative and novel ways to audiences broader than technical journal readership
Risk of being consumed by predators, which differs between fish-containing and fishless streams
Technical report (1976). Covers Gunnison County, Gunnison Basin, Upper Gunnison River Basin. Topics: biologically significant areas, endemic species, ...
Technical report (1989-1994). Covers Upper Gunnison Basin, East River, Taylor River. Topics: In-Stream Flow, Contingent Valuation, transmountain diver...
Environmental assessment (fifty years). Covers Mt. Emmons Iron Bog, Gunnison, Gunnison County. Topics: mineral withdrawal, fen, wetland protection, fe...
Technical report (1928-1975). Covers Crested Butte, Gothic, East River. Topics: plant taxonomy, animal behavior, population genetics, pollination ecol...
Correspondence (February 25, 1999). Covers Black Canyon of the Gunnison National Monument, Upper Gunnison Basin, Upper Gunnison River. Topics: water r...
Wildlife survey (1999). Covers Acid Fen, Mt. Emmons, Gunnison County. Topics: small mammal survey, habitat assessment, species composition, trapping m...
Foundational ecological work in the region also took early aim at species interactions and community structure. Studies of introduced herbivores and invasive plants in western Colorado showed that biological control outcomes vary substantially across years and sites, with plant density itself shaping herbivore impact (Egan & Irwin, 2008). Broader macroecological work using bird, ant, and tree datasets demonstrated that the shape of a species' spatial abundance distribution changes predictably with scale, a principle that informs how alpine surveys should be designed and interpreted (Conlisk et al., 2012).
A central thread across this research community is that long-term, place-based field studies are uniquely powerful — and uniquely fragile. Multi-year demographic studies of mountain species depend on continuous data: a single missed field season can render adjacent years uninterpretable because growth and survival estimates require linked observations, and lagging effects mean one gap can cascade for years (Inouye et al., 2020). This vulnerability became acutely visible during the COVID-19 pandemic, when travel and facility restrictions threatened entire field seasons across mountain research stations (Billick, 2020).
A second major finding concerns how the next generation of mountain scientists is trained. A comparison of participants in National Science Foundation Research Experiences for Undergraduates programs with demographically similar applicants found that structured undergraduate research substantially shapes scientific trajectories: participants were 48 percent more likely to pursue PhDs, produced more than twice as many scientific presentations, and generated significantly more publications and awards than matched peers (Wilson et al., 2018). Critically, this effect held across all program sites despite differences in location and management, indicating that the core ingredients — funded immersion, access to field and analytical resources, and a cohort of peers — are transferable to mountain field stations like RMBL.
A third thread links the physical environment to community dynamics. Climate-driven changes in moisture and dust deposition have repeatedly reshaped landscapes in the southern Colorado Plateau and adjacent ranges, with late Quaternary sand sheets and dune systems forming and stabilizing in response to shifting climate (Ellwein et al., 2015). At finer scales, snowfall, upper-atmospheric wind direction, and new snow water equivalence interact to determine where and when avalanches occur around Gothic, with paths on lee aspects showing elevated probability of release (Chesley-Preston, 2010). Together, these results underscore that alpine biological patterns are layered on top of dynamic physical drivers operating from daily to millennial timescales.
Early work in the 1900s and mid-twentieth century focused on inventory: parasites of pikas (Hansen, 1948), phytoplankton of high lakes (Durrell & Norton, 1960), and regional geology. Work from the 1980s through the 2010s shifted toward community ecology, invasive species impacts, and macroecological pattern (Egan & Irwin, 2008); (Conlisk et al., 2012). Recent studies since 2020 have shifted focus to the resilience of the field-research enterprise itself and to integrative syntheses of phenology. Commentary on the pandemic's impact highlighted that early-career researchers are the most exposed to disruption and called for targeted funding to recover lost field seasons (Inouye et al., 2020); (Billick, 2020). Most recently, a synthesis of phenology as an integrative environmental science draws together decades of mountain observations to frame timing-based responses as a unifying lens for climate biology (Inouye et al., 2025).
The emerging frontier combines long-term demographic records with new questions about cumulative adversity, hibernation as a climate buffer, and mismatches between juveniles and their food supplies. Common garden experiments spanning elevation gradients, integration of weather and snowpack records with biological time series, and creative science communication to Gunnison Basin stakeholders are all expanding the reach of mountain research beyond the technical literature.
Many of the most important questions remain unresolved. How will phenological mismatches between flowers, pollinators, and consumers reshape mountain food webs as snowmelt continues to advance? Can hibernation and torpor continue to buffer marmots, hummingbirds, and other species against more variable winters, or will warmer, drier conditions erode those strategies? How does early life adversity in a single harsh year translate into lifetime fitness, and which combinations of stressors matter most? At the human end of the system, how can field stations protect long-term datasets and the early-career researchers who depend on them from future disruptions, and how can findings from the Upper Gunnison Basin be translated into land-management decisions across the broader region? Answering these questions will require sustaining the multi-decade observational backbone that makes the Gothic region scientifically irreplaceable.
Billick, I. (2020). RMBL Research in the time of Covid-19: Magical Realism? Mountain Views Chronicle. →
Chesley-Preston, T. (2010). Patterns of natural avalanche activity associated with new snow water equivalence and upper atmospheric wind direction and speed in the mountains surrounding Gothic, Colorado. →
Conlisk, E., et al. (2012). The shape of a species' spatial abundance distribution. Global Ecology and Biogeography. →
Durrell, L. W., Norton, P. (1960). Phytoplankton of Lakes of Grand Mesa, Colorado. Transactions of the American Microscopical Society. →
Egan, J. F., Irwin, R. E. (2008). Evaluation of the field impact of an adventitious herbivore on an invasive plant, yellow toadflax, in CO, USA. Plant Ecology. →
Ellwein, A., et al. (2015). Impacts of climate change on the formation and stability of late Quaternary sand sheets and falling dunes, Black Mesa region, southern Colorado Plateau, USA. Quaternary International. →
Hansen, R. M. (1948). Schizorchis ochotonae, n. gen., n. sp. of Anoplocephalid cestode. American Midland Naturalist. →
Hansen, W. R. (1987). The Black Canyon of the Gunnison, Colorado. Geological Society of America eBooks. →
Inouye, D. W., et al. (2020). Support early-career field researchers. Science. →
Inouye, D. W., et al. (2025). Phenology: An Integrative Environmental Science. →
Wilson, A. E., Pollock, J. L., Billick, I., Domingo, C., Fernandez-Figueroa, E. G., Nagy, E. S., Steury, T. D., Summers, A. (2018). Assessing science training programs: Structured undergraduate research programs make a difference. BioScience. →
Experimental design where seeds from broad elevational gradient planted into four common gardens in four treatments
Management plan. Covers East River Planning Unit, Gunnison National Forest, Colorado. Topics: multiple use management, wilderness, wildlife, non-motor...