Coextinction is a poorly quantified phenomenon, but results of recent modeling suggest high losses to global biodiversity through the loss of dependent species when hosts go extinct. There are critical gaps in coextinction theory, and we outline these in a framework to direct future research toward more accurate estimates of coextinction rates. Specifically, the most critical priorities include acquisition of more accurate host data, including the threat status of host species; acquisition of data on the use of hosts by dependent species across a wide array of localities, habitats, and breadth of both hosts and dependents; development of models that incorporate correlates of nonrandom host and dependent extinctions, such as phylogeny and traits that increase extinction-proneness; and determination of whether dependents are being lost before their hosts and adjusting models accordingly. Without synergistic development of better empirical data and more realistic models to estimate the number of cothreatened species and coextinction rates, the contribution of coextinction to global declines in biodiversity will remain unknown and unmanaged.
We present a method for determining the background of Fermi GBM GRBs using
The satellite positional information and a physical model. Since the polynomial
Fitting method typically used for GRBs is generally only indicative of the
Background over relatively short timescales, this method is particular...
Predicting the future direction of community evolution is a problem with high
theoretical and practical significance. It allows to determine which
characteristics describing communities have importance from the point of view
of their future behaviour. Knowledge about the probable future career of t...
We have additional k qubits available. Given such a constraint k, we
Propose an approach for the phase estimation for an eigenphase of exactly n-bit
Precision. This approach adopts the standard recursive circuit for quantum
Fourier transform (QFT) and adopts classical bits to implement such a task....
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