Life Sciences Commons^™

Aspen In Scotland: Biodiversity And Management, John Parrott, Neil Mackenzie

Aspen Bibliography

No abstract provided.

Consequences Of Recruitmentdecisions And Heterogeneity On Age-Specific Breeding Success In A Long-Lived Seabird, Lise M. Aubry, David N. Koons, Jean Yves Monnat, Emmanuelle Cam

Wildland Resources Faculty Publications

An individual’s age at first reproduction and investment in successive reproductive attempts are involved in mechanisms that can impede somatic repair, resulting in a decline in reproductive abilities with age (reproductive senescence). We used long-term data from the Black-legged Kittiwake, a long-lived seabird, to address the relationship between recruitment age, age-specific breeding success (BS), and reproductive senescence, while accounting for breeding experience and temporal variation in BS. We first detected late-life improvement in BS across all recruitment groups, which we recognized as ‘‘within-generation selection’’ or the selective disappearance of ‘‘frail’’ phenotypes. When such heterogeneity was accurately accounted for, we showed …

Isolation Of 11 Polymorphic Tri- And Tetranucleotide Microsatellite Loci In A North American Sedge (Carex Scoparia: Cyperaceae) And Cross-Species Amplification In Three Additional Carex Species, Andrew L. Hipp, Karin M. Kettenring, Kevin A. Feldheim, Jaime A. Weber

Watershed Sciences Faculty Publications

We report on the isolation and evaluation of 11 microsatellites from a widespread eastern North American wetland sedge, Carex scoparia. Loci exhibit 3–9 alleles over five populations and significant F_IS (0.204–0.717) in most populations. All primers cross-amplify in at least two other species, and 10 cross-amplify in the more distantly related C. stipata. These markers will be used to examine population genetics and patterns of chromosomal diversification in this ecologically important sedge species and its relatives.

Direct And Indirect Effects Of Climate Change On A Prairie Plant Community, Peter B. Adler, James Leiker, Jonathan M. Levine

Wildland Resources Faculty Publications

Background

Climate change directly affects species by altering their physical environment and indirectly affects species by altering interspecific interactions such as predation and competition. Recent studies have shown that the indirect effects of climate change may amplify or counteract the direct effects. However, little is known about the the relative strength of direct and indirect effects or their potential to impact population persistence.

Methodology/Principal Findings

We studied the effects of altered precipitation and interspecific interactions on the low-density tiller growth rates and biomass production of three perennial grass species in a Kansas, USA mixed prairie. We transplanted plugs of each …

An Aspen Success Story : 2009 Aspen Monitoring Report, James L. Robertson

Aspen Bibliography

No abstract provided.

2009 Report : A Multi-Refuge Program To Evaluate The Effect Of Ungulate Browsing On Habitat, Richard B. Keigley, Jeffrey Warren, Wayne J. King

Aspen Bibliography

No abstract provided.