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Full-Text Articles in Life Sciences
Wireless Sensory Networks For Ecology, John Porter, Peter Arzberger, Hans-Werner Braun, Todd Hansen, Pablo Bryant, Sedra Shapiro, Stuart Gage, Paul Hanson, Timothy Kratz, Chau-Chin Lin, Fang-Pang Lin, William Michener, Thomas Williams
Wireless Sensory Networks For Ecology, John Porter, Peter Arzberger, Hans-Werner Braun, Todd Hansen, Pablo Bryant, Sedra Shapiro, Stuart Gage, Paul Hanson, Timothy Kratz, Chau-Chin Lin, Fang-Pang Lin, William Michener, Thomas Williams
Long Term Ecological Research Network
Field biologists and ecologists are starting to open new avenues of inquiry at greater spatial and temporal resolution, allowing them to "observe the unobservable" through the use of wireless sensor networks. Sensor networks facilitate the collection of diverse types of data (from temperature to imagery and sound) at frequent intervals--even multiple times per second--over large areas, allowing ecologists and field biologists to engage in intensive and expansive sampling and to unobtrusively collect new types of data. Moreover, real-time data flows allow researchers to react rapidly to events, thus extending the laboratory to the field. We review some existing uses of …
A Dimensionless Invariant For Relative Size At Sex Change In Animals: Explanation And Implications, Andy Gardner, David Allsop, Eric Charnov, Stuart West
A Dimensionless Invariant For Relative Size At Sex Change In Animals: Explanation And Implications, Andy Gardner, David Allsop, Eric Charnov, Stuart West
Biology Faculty & Staff Publications
Recent comparative studies across sex-changing animals have found that the relative size and age at sex change are strikingly invariant. In particular, 91%-97% of the variation in size at sex change across species can be explained by the simple rule that individuals change sex when they reach 72% of their maximum body size. However, this degree of invariance is surprising and has proved controversial. In particular, it is not clear why this result should hold, given that there is considerable biological variation across species in factors that can influence the evolutionarily stable timing of sex change. Our overall aim here …
Reproductive Effort Is Inversely Proportional To Average Adult Life Span., Eric Charnov
Reproductive Effort Is Inversely Proportional To Average Adult Life Span., Eric Charnov
Biology Faculty & Staff Publications
Background: Forty years ago, G.C. Williams predicted that reproductive effort should be inversely related to the average adult life span across species. Aim: Use allometric life-history theory to refine that prediction. Result: Reproductive effort should be inversely proportional to average adult life span, a −1 scaling rule.
Mammal Life-History Evolution With Size-Dependent Mortality, Eric Charnov
Mammal Life-History Evolution With Size-Dependent Mortality, Eric Charnov
Biology Faculty & Staff Publications
Size dependence of mortality over the ontogeny is added to life-history optimization schemes for mammals