Search

Your search keyword '"Siler, Cameron D"' showing total 625 results
Start Over Author "Siler, Cameron D"
625 results on '"Siler, Cameron D"'

4. Cryptic extinction risk in a western Pacific lizard radiation

Author

McDonald, Peter J., Brown, Rafe M., Kraus, Fred, Bowles, Philip, Arifin, Umilaela, Eliades, Samuel J., Fisher, Robert N., Gaulke, Maren, Grismer, L. Lee, Ineich, Ivan, Karin, Benjamin R., Meneses, Camila G., Richards, Stephen J., Sanguila, Marites B., Siler, Cameron D., and Oliver, Paul M.

Published
2022
Full Text
View/download PDF

13. Capacity and establishment rules govern the number of nonnative species in communities of ground-dwelling invertebrates

Author

Kaspari, Michael, Weiser, Michael D., Siler, Cameron D., Marshall, Katie E., Smith, Sierra N., Stroh, Katherine M., de Beurs, Kirsten M., Kaspari, Michael, Weiser, Michael D., Siler, Cameron D., Marshall, Katie E., Smith, Sierra N., Stroh, Katherine M., and de Beurs, Kirsten M.

Abstract

Nonnative species are a key agent of global change. However, nonnative invertebrates remain understudied at the community scales where they are most likely to drive local extirpations. We use the North American NEON pitfall trapping network to document the number of nonnative species from 51 invertebrate communities, testing four classes of drivers. We sequenced samples using the eDNA from the sample's storage ethanol. We used AICc informed regression to evaluate how native species richness, productivity, habitat, temperature, and human population density and vehicular traffic account for continent-wide variation in the number of nonnative species in a local community. The percentage of nonnatives varied 3-fold among habitat types and over 10-fold (0%–14%) overall. We found evidence for two types of constraints on nonnative diversity. Consistent with Capacity rules (i.e., how the number of niches and individuals reflect the number of species an ecosystem can support) nonnatives increased with existing native species richness and ecosystem productivity. Consistent with Establishment Rules (i.e., how the dispersal rate of nonnative propagules and the number of open sites limits nonnative species richness) nonnatives increased with automobile traffic—a measure of human-generated propagule pressure—and were twice as common in pastures than native grasslands. After accounting for drivers associated with a community's ability to support native species (native species richness and productivity), nonnatives are more common in communities that are regularly seasonally disturbed (pastures and, potentially deciduous forests) and those experiencing more vehicular traffic. These baseline values across the US North America will allow NEON's monitoring mission to document how anthropogenic change—from disturbance to propagule transport, from temperature to trends in local extinction—further shape biotic homogenization.

Published
2024

14. Geographic gradients in a functional trait : Drivers of body size and size diversity of ground invertebrate communities

Author

Kaspari, Michael, Marshall, Katie E., Weiser, Michael D., Siler, Cameron D., Theriot, Miranda K., de Beurs, Kirsten, Kaspari, Michael, Marshall, Katie E., Weiser, Michael D., Siler, Cameron D., Theriot, Miranda K., and de Beurs, Kirsten

Abstract

Body size is a key functional trait governing how an animal community transforms resources and conditions into performance, abundance, and fitness. Here we use the National Ecological Observatory Network of pitfall traps to explore how an ecosystem's plant productivity, temperature, and growing season length accounts for the range of body size across 99 ground invertebrate communities. The 19-fold continental variation in mean body size failed to covary with latitude, while common ordinal subtaxa grew smaller (e.g., myriapods) to larger (e.g., acari) from Puerto Rico to Alaska. Communities with a larger mean size arose when winters were longer and gross primary productivity was high. The diversity of body sizes in a community (measured as the CV) varied ninefold and decreased with latitude (r2 = 0.24) consistently across common orders. Size-diverse communities were less likely in ecosystems with long winters (suggesting constraints on the time to build, r2 = 0.34) and those with high invertebrate activity (and hence trap catch, r2 = 0.12). Body size distributions thus appeared to arise from conflicting combinations of constraint (i.e., the ability to build large bodies) and performance (utility of large size in surviving long winters). As warming promotes growing season length, populations of larger, rarer individuals may benefit.

Published
2024

15. Amphibians of the Philippines, Part I: Checklist of the Species

Author

Diesmos, Arvin C, Watters, Jessa L, Huron, Nicholas A, Davis, Drew R, Alcala, Angel C., Crombie, Ronald I, Afuang, Leticia E, Gee-Das, Genevieve, Sison, Rogelio V, Sanguila, Marites B, Penrod, Michelle L, Labonte, Marie J, Davey, Conner S, Leone, E Austin, Diesmos, Mae L, Sy, Emerson Y, Welton, Luke J, Brown, Rafe M., Siler, Cameron D, and BioStor

Published
2015

Catalog

Books, media, physical & digital resources
See catalog results