For newly established protected areas, it is important to document the abundance, structure and distribution of the species within the landscape. Here we assessed the variation in total abundance as well as female, male and juvenile abundance of Mwanza flat-headed rock agama (Agama mwanzae) in Saanane National Park, Tanzania, in relation to daylight condition (sunny and non-sunny) and proximity to humans. Twenty-three points of 50-meter radius were randomly placed and thoroughly searched for A. mwanzae. Of 364 individual Mwanza flat-headed rock agamas recorded, 85% were adults and 15% were juveniles. Among adults, 45% were males and 55% were females. Daylight condition was observed to affect total abundance and the abundance of females, males and juveniles of A. mwanzae, with higher abundance being in sunny periods as compared to non-sunny periods. Distance from the tourist trail was the best predictor for total abundance and the abundance of females and juveniles but not males, with abundance decreasing moving away from the tourist trail. Therefore, we suggest these factors be considered when surveying agamas elsewhere.

Stem lengths of Dendrosenecio adnivalis and Lobelia wollastonii were measured three times over 5.5 years in the Ruwenzori Mountains, Uganda. These are the only growth data for these two species. Both species had highly variable growth rates. Absolute growth rates in D. adnivalis were not related to the number of rosettes, inflorescences or initial height of plants. The D. adnivalis that were shorter at the beginning of the study grew proportionately faster than did taller individuals. Growth rate was positively associated with annual rainfall for D. adnivalis on the Ruwenzori Mountains, D. keniodendron on Mount Kenya, and D. battiscombei on the Aberdare Mountains. Lobelia wollastonii that were taller at the beginning of the study had greater absolute growth rates than did shorter plants. There was no significant relationship between the initial height and proportional increase in height for L. wollastonii. Growth rate and height are unreliable indicators of age for both species.