7,658 results ·
Fitness costs and benefits of a non-native floral resource for subalpine solitary bees
Organisms inhabiting seasonal environments must fit their life cycle into a limited time window while also synchronizing periods of resource consumption with timing of resource availability. Introduced non‐native species, which often differ in phenology from natives, can alter and expand the seasona
Is the propensity to alarm-call heritable and related across multiple contexts?
Alarm calling is an important antipredator behaviour by which individuals alert conspecifics and heterospecifics of possible danger and/or ward off potential predators. The propensity to utter calls may reflect the amount of risk an individual experiences and a variety of other internal and environm
Society formation and maintenance in yellow-bellied marmots
Yellow-bellied marmots, Marmota flaviventer , are facultatively social and may form multigenerational societies, which are characterized by individuals sharing and defending space, possessing the ability to distinguish group members from outsiders and potentially persisting for many generations. I r
Nutrient niche dynamics among wild pollinators
Food underpins fitness and ecological interactions, yet how nutrient availability shapes species interactions in natural communities remains poorly understood. Most nutritional ecology research focuses on laboratory or single-species systems, limiting insight into how nutrient use and nutrient niche
Nonlinear phenomena in marmot alarm calls: a mechanism encoding fear?
I review a case study of marmots that contributed to the empirical basis of the nonlinearity and fear hypothesis, which explains why certain nonlinear acoustic phenomena (NLP) are produced in extremely high-risk situations and communicate high urgency. In response to detecting predatory threats, yel
Canopy structure modulates the sensitivity of subalpine forest stands to interannual snowpack and precipitation variability
Abstract. A declining spring snowpack is expected to have widespread effects on montane and subalpine forests in western North America and across the globe. The way that tree water demands respond to this change will have important impacts on forest health and downstream water subsidies. Here, we pr
The short life of upvalley wind in a high-altitude valley in the Colorado Rocky Mountains
Abstract Thermally driven upvalley (UV) wind in the upper East River Valley in the Colorado Rocky Mountains often unexpectedly stops in midmorning and reverses back to downvalley (DV) wind. We use a comprehensive observational data set for a nearly two‐year long period to analyze the wind system and
Atmospheric Surface Flux Station #50 measurements (level 2 Processed), Study of Precipitation, the Lower Atmosphere and Surface for Hydrometeorology (SPLASH), October 2021-June 2023
Processed (Level 2) measurements and derived variables from the Atmospheric Surface Flux Station #50 (ASFS-50) deployed at the Avery Picnic site (38°58.3455' N, 106°59.8113' W) during the Study of Precipitation, the Lower Atmosphere, and Surface for Hydrometeorology (SPLASH) campaign near Gothic, Co
Temperature influences pollinator' choice of floral partners independently of community composition
Climate change can impact species interactions by changing the spatial and/or temporal overlap of interaction partners, but interspecific interactions can also vary when partners remain co-located in space and time. Understanding the effects of climate-driven environmental variation, such as rising
Supplementary material from "Multilevel selection on individual and group social behaviour in the wild"
How phenotypes are shaped by multilevel selection – the theoretical framework proposing natural selection occurs at more than one level of biological organisation – is a classic debate in biology. Though social behaviours are a common theoretical example for multilevel selection, it is unknown if an
Sindewald et al - Identifying alpine treeline species using high-resolution WorldView-3 multispectral imagery and convolutional neural networks dataset
The dataset contains region of interest (ROI) polygons for six treeline species found in Rocky Mountain National Park, CO. The tree and shrub species include limber pine (Pinus flexilis), willow (Salix glauca, Salix brachycarpa, and hybrids), Engelmann spruce (Picea engelmannii), subalpine fir (Abie
Marmots could have the solution to a long-running debate in evolution
The effects of advanced plant phenology on herbivory and plant demography
What sexual diversity in the natural world can teach humans about sex, gender, and inclusive biology
A global assessment of environmental and climate influences on wetland macroinvertebrate community structure and function
An Unusual Glacial Event in the Comanch Peak Wilderness Area, Larimer County, Colorado
Late Pinedale till deposits mapped in various stream valleys in the Comanche Peak Wilderness Area, north of Rocky Mountain National Park, indicate that Browns Creek Valley was glaciated from two directions simultaneously while the middle of the valley remained unglaciated. Till deposits at the upper
Transfer of Development Rights
County plan. Covers Gunnison County, Colorado, Boulder County. Topics: transfer of development rights, ranchland preservation, conservation easements, essential housing. Agencies: Gunnison County, GOCO, Montgomery County. Cites 5 external works.
Toxic Waste Papers- John Cairns
Technical report (1972-1980). Covers Philadelphia, Blacksburg, Virginia. Topics: water quality management, environmental management, toxicity testing, multispecies toxicity tests. Agencies: American Water Resources Association, Water Science and Technology Board, National Research Council. Cites 50
Toxic Waste
Correspondence (1972-1974). Covers Arizona, Tucson, Florida. Topics: toxic waste disposal, ocean incineration, chemical waste burning, water resources development. Agencies: At-Sea Incineration Inc., Tacoma Boatbuilding Co., U.S. Maritime Administration. Cites 12 external works.
Thoughts on Dialogue
These thoughts are purely my own. No one else is responsible for them. So far as I know, no one agrees with them. And no organization endorses them. But dialogue has to start somewhere. And I have learned through thirty years of building dialogue in the interest of conservation that where there is a