Share This Author
Impact of a Century of Climate Change on Small-Mammal Communities in Yosemite National Park, USA
- C. Moritz, J. Patton, C. Conroy, J. L. Parra, G. White, S. Beissinger
- Environmental ScienceScience
- 10 October 2008
A century-scale view of small-mammal responses to global warming is provided by repeating Grinnell's early–20th century survey across a 3000-meter-elevation gradient that spans Yosemite National Park, California, USA.
Limitations of Captive Breeding in Endangered Species Recovery
Captive breeding should be viewed as a last resort in species recovery and not a prophylactic or long-term solution because of the inexorable genetic and phenotypic changes that occur in captive environments.
On the Use of Demographic Models of Population Viability in Endangered Species Management
PVA should evaluate relative rather than absolute rates of extinction, emphasize short-time periods for making projections, and mix genetic and demographic currencies sparingly and link between recovery options and PVA models should be established.
Incubation reduces microbial growth on eggshells and the opportunity for trans-shell infection.
Some incubation during laying may be necessary to decrease the probability of trans-shell infection by reducing the growth of harmful bacteria and fungi on eggshells, although it may increase hatching asynchrony and the likelihood of brood reduction.
Birds track their Grinnellian niche through a century of climate change
- M. Tingley, W. Monahan, S. Beissinger, C. Moritz
- Environmental ScienceProceedings of the National Academy of Sciences
- 17 November 2009
The results indicate that the factors limiting a bird species' range in the Sierra Nevada in the early 20th century also tended to drive changes in distribution over time, suggesting that climatic models derived from niche theory might be used successfully to forecast where and how to conserve species in the face of climate change.
Two-species occupancy models: a new parameterization applied to co-occurrence of secretive rails.
- Orien M. W. Richmond, J. Hines, S. Beissinger
- Environmental ScienceEcological applications : a publication of the…
- 1 October 2010
This work presents a new parameterization that is stable when covariates are included: the conditional two-species occupancy model, which can be used to examine alternative hypotheses for species' distribution patterns, and finds that Black Rail detection probability was unaffected by the detection of Virginia Rails, while, surprisingly, Black and Virginia Rail occupancy were positively associated even in small marshes.
The push and pull of climate change causes heterogeneous shifts in avian elevational ranges
Projected effects of climate change on animal distributions primarily focus on consequences of temperature and largely ignore impacts of altered precipitation. While much evidence supports…
Hatching Asynchrony and the Onset of Incubation in Birds, Revisited
In most animals, offspring from a reproductive bout usually hatch, emerge, or are born within a relatively short time of each other compared to the time required for their development. Thus, hatching…
Detecting range shifts from historical species occurrences: new perspectives on old data.
Emerging Issues in Population Viability Analysis
- J. M. Reed, L. S. Mills, P. Miller
- Environmental ScienceConservation biology : the journal of the Society…
- 1 February 2002
It is concluded that PVA is a powerful tool in conservation biology for comparing alternative research plans and relative extinction risks among species, but caution is suggested in its use.