The Williams Fork Formation (WFF) of northwestern Colorado preserves an understudied freshwater biota from the Campanian/Maastrichtian boundary. Here we describe a diverse actinopterygian-dominated fish assemblage from the ReBecca’s Hollow locality of Rio Blanco County. Chondrichthyans are rare from

The Mexican Cut Nature Preserve supports diverse populations of caddisflies (Limnephilus externus), whose larvae construct protective cases from environmental debris. Case morphology varies with ecological pressures, but gaps remain in understanding how intra- and interspecific interactions influenc

Humans manage microbes in their built environments by lowering humidity, filtering outside air, and applying antimicrobials that together fosters the selective dominance of microorganisms that can tolerate these harsh conditions and selects for antimicrobial resistance. Other species, however, regul

Biofluorescence, the emission of visible light by organisms following the absorption of shorter wavelengths of light, has been identified recently in various amphibians but remains poorly understood in salamanders. This study investigates the potential relationship between biofluorescence and sexual

Beaver Dam Analogues (BDAs) are human-made structures mimicking beaver dams and are implemented in restoration projects to slow flow, aggrade sediment, and reconnect streams to floodplains or create wetland conditions. Despite the recent popularity of this technique, very little monitoring occurs at

Aquatic insects play many critical ecological roles in their environments. Anthropogenic changes in these environments, particularly those already under stress, leave the insect community more prone to stochastic disturbances. Despite widespread efforts by conservationists, many projects fail to inc

Last modified: January 09, 2025 IntroductionThis dataset comprises all bee interactions indexed by Global Biotic Interactions (GloBI; Poelen et al. 2014). It is published quarterly by the Big Bee Project (Seltmann et al. 2021) to summarize all available knowledge about bee interactions from natural

Many animals bio-fluoresce. Various amphibians have recently been identified as bio-

Biofluorescence, the re-emission of absorbed light at lower energy wavelengths, has been widely documented in marine organisms and recently observed in amphibians. This phenomenon, particularly in amphibians such as frogs, salamanders, and newts, suggests potential roles in ecological interactions,

1. Beavers are ecosystem engineers. They alter the structure of their habitats when they cut woody vegetative material to create dams that result in ponds. Ponding slows water flow, resulting in fine sediment deposition. A wetland is created as the sediment continues to deposit. 2. The formation of

Polyphenisms occur when phenotypic plasticity produces morphologically distinct phenotypes from the same genotype. Plasticity is maintained through fitness trade-offs which are conferred to different phenotypes under specific environmental contexts. Predicting the impacts of contemporary climate cha

As climate change accelerates, low summer stream flows are becoming increasingly common in the Colorado Rocky Mountains, USA. The diatom Didymosphenia geminata (Lyngb.) M. Schmidt, typically observed under low-flow and low-P conditions, produces nuisance growth—persistent and extensive proliferation

Beavers are ecological engineers, benefitting the aquatic ecosystems with their dams and ponds. The beaver ponds change over time; beaver ponds of different ages will have different characteristics. These differences will influence what types of aquatic invertebrates will inhabit these ponds. Unders

Animal communication is vital to nearly every species. Serving multiple functions and being conveyed throughout a variety of modes, communication allows animals to make decisions based on information other animals provide. Numerous examples of this can be found across the animal kingdom, with bioflu

AbstractFitness trade‐offs are a foundation of ecological and evolutionary theory because trade‐offs can explain life history variation, phenotypic plasticity, and the existence of polyphenisms.Using a 32‐year mark‐recapture dataset on lifetime fitness for 1093 adult Arizona tiger salamanders (Ambys

The webfooted rodent deserves some praise, claim two scientists B= are pretty scarce in the Beaver State these days, but it wasn’t always that way. It’s estimated that in the mid-nineteenth century there were nearly a million beavers in Oregon. Today, there are an estimated 68,000. Reasons for the d