NCEAS Project 8980
Interactions between mammalian herbivores and associated plant communities
- John L. Orrock
| Activity | Dates | Further Information |
|---|---|---|
| Postdoctoral Fellow | 1st June 2004—30th June 2007 | Participant List |
| Graduate Student | 1st April—30th June 2006 | Participant List |
Abstract
The grasslands of California represent one of the most dramatic biological invasions in the world:
9.2 million ha (almost 25% of the entire state) are dominated by non-native plants. My work at NCEAS will evaluate whether non-native plants subsidize native consumers, leading to stronger impacts of native consumers on native plants (i.e. apparent competition). Furthermore, I will characterize how differences in consumer behavior among patches change the spatial extent of apparent competition (and thus invasion).
| Type | Products of NCEAS Research |
|---|---|
| Journal Article | Damschen, Ellen I.; Haddad, Nick; Orrock, John L.; Tewksbury, Joshua; Levey, Douglas J. 2006. Corridors increase plant species richness at large scales. Science. Vol: 313. Pages 1284-1286. |
| Journal Article | Fryxell, John M.; Wilmshurst, John F.; Sinclair, Anthony R. E.; Haydon, Daniel T.; Holt, Robert D.; Abrams, Peter A. 2005. Landscape scale, heterogeneity, and the viability of Serengeti grazers. Ecology Letters. Vol: 8(3). Pages 328-335. |
| Journal Article | Motheral, Sara M.; Orrock, John L. 2010. Gastropod herbivore preference for seedlings of two native and two exotic grass species. American Midland Naturalist. Vol: 163(1). Pages 106-114. |
| Journal Article | Orrock, John L.; Fletcher, Robert J. 2005. Changes in community size affect the outcome of competition. American Naturalist. Vol: 166(1). Pages 107-111. |
| Journal Article | Orrock, John L. 2005. Conservation corridors affect the fixation of novel alleles. Conservation Genetics. Vol: 6. Pages 623-630. |
| Journal Article | Orrock, John L.; Damschen, Ellen I. 2005. Corridors cause differential seed predation. Ecological Applications. Vol: 15(3). Pages 793-798. |
| Journal Article | Orrock, John L.; Damschen, Ellen I. 2005. Fungi-mediated mortality of seeds of two old-field plant species. Journal of the Torrey Botanical Society. Vol: 132. Pages 613-617. |
| Journal Article | Orrock, John L.; Danielson, Brent. 2005. Patch shape, connectivity, and foraging by oldfield mice (Peromyscus polionotus). Journal of Mammalogy. Vol: 86(3). Pages 569-575. |
| Journal Article | Orrock, John L. 2005. The effect of gut passage by two species of avian frugivore on seeds of pokeweed, Phytolacca americana. Canadian Journal of Botany-Revue Canadienne de Botanique. Vol: 83. Pages 427-431. |
| Journal Article | Orrock, John L.; Levey, Douglas J.; Danielson, Brent; Damschen, Ellen I. 2006. Seed predation, not seed dispersal, explains the landscape-level abundance of an early-successional plant. Journal of Ecology. Vol: 94. Pages 838-845. |
| Journal Article | Orrock, John L.; Damschen, Ellen I. 2007. The effect of burial depth on removal of seeds of Phytolacca americana. Southeastern Naturalist. Vol: 6(1). Pages 151-158. |
| Journal Article | Orrock, John L. 2007. Useful distraction: Ritualized behavior as an opportunity for recalibration. Behavioral and Brain Sciences. Vol: 29(6). Pages 625-626. |
| Journal Article | Orrock, John L.; Witter, Martha S.; Reichman, O. J. 2008. Apparent competition with an exotic plant reduces native plant establishment. Ecology. Vol: 89. Pages 1168-1174. |
| Data Set | Orrock, John L. 2008. Effect of Brassica nigra on the pressure of native consumers on Nassella pulchra in Cheeseboro Canyon. (Online version) |
| Data Set | Orrock, John L. 2008. Rodent effects on Nassella pulchra recruitment at Cheeseboro Canyon. (Online version) |
| Journal Article | Orrock, John L.; Hoisington-Lopéz, Jessica L. 2009. Mortality of exotic and native seeds in invaded and uninvaded habitats. ACTA Oecological-International Journey of Ecology. Vol: 35. Pages 758-762. (Online version) |
| Journal Article | Orrock, John L.; Witter, Martha S.; Reichman, O. J. 2009. Native consumers and seed limitation constrain the restoration of a native perennial grass in exotic habitats. Restoration Ecology. Vol: 17(1). Pages 148-157. |
| Journal Article | Orrock, John L.; Witter, Martha S. 2010. Multiple drivers of apparent competition reduce re-establishment of a native plant in invaded habitats. Oikos. Vol: 119. Pages 101-108. |
| Journal Article | Orrock, John L.; Holt, Robert D.; Baskett, Marissa L. 2010. Refuge-mediated apparent competition in plantconsumer interactions. Ecology Letters. Vol: 13. Pages 11-20. |
| Journal Article | Orrock, John L.; Baskett, Marissa L.; Holt, Robert D. 2010. Spatial interplay of plant competition and consumer foraging mediate plant coexistence and drive the invasion ratchet. Proceedings of the Royal Society B-Biological Sciences. Vol: 277. Pages 3307-3315. (Online version) |
| Journal Article | Orrock, John L. 2010. When the ghost of predation has passed: Do rodents from islands with and without fox predators exhibit aversion to fox cues?. Ethology. Vol: 116. Pages 338-345. (Online version) |
| Journal Article | Seabloom, Eric; Borer, Elizabeth T.; Martin, Burl A.; Orrock, John L. 2009. Effects of long-term consumer manipulations on invasion in oak savanna communities. Ecology. Vol: 90(5). Pages 13561365. |