However, it turns out that much of the savanna and steppe has been burnt every year or few by lightning or man and his predecessors, for millions of years – how else do we explain the biodiversity of the systems, the fire adaptations of many of the organisms, and the seeming need for the system to be burnt periodically that its biodiversity not be lost (Ellery and Mentis1992)?
Whilst SDTF grow on rich soils and have a succulent rich flora that lack fire adaptations (e.g. Cactaceae), most savannas are dominated by grasses, occur on poor, aluminium-rich soils (e.g. the Cerrados [ 40]), and experience regular fires (Table 2).
Comparing speciation rates overall between fireprone-habitat and non-fireprone sister clades, the pivotal role of seed storage for successful occupation of fireprone habitats is supported and the two are highly correlated through time (P < 0.001) confirming their classification as true fire adaptations.
While different subtypes of interneurons are labeled in this mouse line, we found a strong bias towards reelin-expressing, dendritically targeting interneurons with firing patterns showing delayed onset firing around threshold and moderate firing adaptation at higher firing frequencies.
Thus, one explanation for the apparent decreased level of K-Channel mRNA expression in RA is the suppression of specific K-Channel variants (or their accessory subunits), depressing rapid changes in cellular excitability and firing adaptation.
The premise of "The Hunger Games: Catching Fire," an adaptation of Collins's second volume, doesn't make a lot of sense, either.
For the cell shown in Fig. 1, firing rate adaptation can be seen in the PSTH (portions above medium and high contrast) as a decline in firing rate as a function of time.
Sodium-activated potassium (KNa) channels contribute to firing frequency adaptation and slow after hyperpolarization.
In this paper, we described two types of putative facial nucleus motoneurons based on their electrophysiological properties and their firing frequency adaptation.
