Abstract Many species produce individually specific vocalizations and sociality is a hypothesized driver of such individuality. Previous studies of how social variation influenced individuality focused on colonial or non-colonial avian species, and how social group size influenced individuality in s

Lukacs, P. M., A. Seglund, and S. Boyle. 2015. Effects of Gunnison Sage-Grouse habitat treatment efforts on associated avifauna and vegetation structure. Avian Conservation and Ecology 10(2):7.http://dx.doi.org/10.5751/ACE-00799-100207

A newly discovered dinosaur tracksite in the Upper Cretaceous Dakota Group of southeastern Colorado preserves tracks attributable to ornithopod, theropod, and possibly ankylosaurid dinosaurs. Minimally 79 tracks occur at the site, and are comprised predominantly of ornithopod prints preserved as nat

We describe a microvertebrate assemblage from the J&M site, of the Upper Cretaceous (Campanian-Maastrichtian) Williams Fork Formation. Breakdown of fossil bearing matrix was achieved with the use of heated dimethyl sulfoxide. Nine of the recovered taxa are new to both the J&M site and the Williams F

CHESSON, P. 1978. Predator-prey theory and variability. Ann. Rev. Ecol. Syst. 9:323-347. CURIO, E. 1976. The ethology of predation. Springer-Verlag, New York. DILL, L. M. 1983. Adaptive flexibility in the foraging behavior of fishes. Can. J. Fish. Aq. Sci. 40:398408. DUNBRACK, R. L., AND L. M. DILL.

The Paradox Basin is an asymmetric foreland basin, developed along the southwestern flank of the Uncompahgre uplift in southeast Utah and southwest Colorado, USA. This large basin (265km by 190km) developed during the middle Pennsylvanian-Permian ancestral Rocky Mountain orogenic event. Salt structu

Accepted Article Species responses to climate change depend on environment, genetics, and interactions among these factors. Intraspecific cytotype (ploidy level) variation is a common type of genetic variation in many species. However, the importance of intraspecific cytotype variation in determinin

Individuals sometimes exhibit striking constancy to a single behaviour even when they are capable of short-term behavioural flexibility. Constancy enables animals to avoid costs such as memory constraints, but can also inflict significant opportunity costs through behaviour–environment mismatch. It

The science of ecology is about relationships—among organisms and habitats, on all scales—and how they provide information that helps us better understand our world. In the past 100 years, the field has moved from observations to experiments to forecasting. Next week, the Ecological Society of Ameri

Geographic and ecologic relationships among the four species of pocket gophers that occur in Colorado have stimulated considerable interest (see, for example, Miller, 1964), but much remains to be learned about their distribution and natural history. The purposes of this note are to report new distr

Feeding in the Perlodidae and Chloroperlidae may, therefore, be important for survival and possibly for the final stages of egg development in the population dynarnics of aquatic insects.

Spatiotemporal patterns of phenology may be affected by mosaics of environmental and genetic variation. Environmental drivers may have temporally lagged impacts, but patterns and mechanisms remain poorly known. We combine multiple genomic, remotely sensed, and physically modeled datasets to determin

Owing to sex-specific reproductive strategies, the mean and variance in annual offspring production may differ between the sexes. In addition, there may be sex-specific changes in reproductive performance with age (e.g. senescence). We used 20 and 50 years of longitudinal data on male and female yel

Plants produce an array of chemical and mechanical defences that provide protection against many herbivores and pathogens. Putatively defensive compounds and structures can even occur in floral rewards: for example, the pollen of some plant taxa contains toxic compounds or possesses conspicuous spin

Summary Leading edges of population expansion provide unique opportunities for individuals to elevate their social and economic status. However, dispersal into unknown areas may have high costs such as violence associated with conflicts over resources, unfamiliar and harsh ecological conditions, and

In previous reports on the Cretaceous rocks of NM, writers have followed the nomenclature established by Cross, and have described all the rocks between the Dakota Sandstone and the Mesaverde coal measures as Mancos Shale. Lee and Darton, in describing the rocks of central and northeastern NM, recog

Research Article| May 01 2000 "A Promise Long Deferred": Federal Reclamation on the Colorado River Indian Reservation Ann Caylor Ann Caylor Search for other works by this author on: This Site PubMed Google Scholar Pacific Historical Review (2000) 69 (2): 193–215. https://doi.org/10.2307/3641438 View