APPENDIX 2 (BACKGROUND OF THE
SURVEY AND ITINERARY).
Appendix 2.1. Background of the survey and the
contents of this report.
Time schedule of planning. The two team leaders started their planning 1 May 1993, four and a half months before departure. Initial preparations comprised identification of a field crew, formulation of a fieldwork programme, contacts to relevant collaborating parties, purchasing equipment and - not the least - seeking economic support for the project. The planning phase was hectic and difficult, due to little time available and other duties, lack of good maps until late in the summer and much uncertainty as to whether it was possible to gain access to the Uluguru North F.R. (access had been prohibited for foreigners for some years). Furthermore the initial purpose of the trip was changed during the planning phase following discussions with RSPB and access to new information.
Birds
(Section 5). Before our survey the Uluguru South F.R. (by far the largest
in the Ulugurus) was very little known biologically. For birds the only visit
to the eastern slopes were some collecting activities of Loveridge at Nyingwa
and Nyange in the 1920ies (see Appendix 5.1 and Figure 1.3). Some visits had
also been paid to the Tchenzema and Bunduki areas on the western slopes. Stuart
and Jensen (1985) recommended that new ornithological surveys should focus on
the southeastern section of the Ulugurus. The initial purpose of the trip from
ZMUC was to combine (1) a study of the unknown eastern slopes of the Uluguru
South F.R. with (2) training of "new" Danish students and
ornithologists in fieldwork techniques (to involve them in fieldwork in the
tropics, especially in Tanzania) and (3) further testing of methods to be used
for quantifying the avifauna of the Eastern Arc (for a large-scale study with
the aim of explaining biogeographical patterns and pointing out conservation priorities).
However,
following discussions during the summer with RSPB (running the Uluguru Slopes
Planning Project) who had funds for a standardised survey of the two endemic
bird species but also was interested in a standardised description of the
avifauna, a compromise was reached between ZMUC and RSPB. The plans of testing
various methods was skipped. A contract was signed with RSPB early September,
including the following obligations:
Standardised
methods were applied to describe the avifauna along three gradients - two on
the very unknown eastern slopes of the Uluguru South F.R. and - for comparison
- one in the better known Uluguru North F.R. Additional localities were visited
by JF, who brought a car, for improving the overview (Tchenzema, Kimboza,
Bunduki, Morningside and - in the autumn 1994 Kigurunyembe). This has provided
a solid description of the general avifauna, including the density of the
endemic Near-threatened species Nectarinia loveridgei. As much time as
possible was used to search for rare species ("general birdwatching")
and to survey the entire gradient. However, in a rugged and difficult terrain
with a tight time schedule we often felt that time was limited for locating the
most scarce birds (with "general birdwatching") like some of the
threatened species. These species are not detected by standardised methods but
rather by extensive surveying. Three of the Threatened species were located,
including the endemic Malaconotus alius, and in combination with earlier data,
literature studies and own experience from earlier fieldwork in the Eastern Arc
we have been able to preliminary assess the geographical distribution of
Threatened species in the Ulugurus.
The reason
for choosing the altitudes 1345 m, 1520 m, 1720 m, 1920 m and 2145 m for camp sites
is that standardized mistnetting were carried out in the same altitudes in the
Udzungwas 1991-92 by LAH and JOS. Potential campsites had first been found on
the 1:50.000 maps. Using the same altitudes in the Ulugurus during the present
survey, a basis has been provided for a later comparison between the Uluguru
and the Udzungwa Mountains.
A review of
earlier ornithological survey work and an assessment of the value of Kimboza
Forest for altitudinal migrants from the montane forests has been included to
facilitate an overall assessment of the Ulugurus and to facilitate planning of
coming surveys. A number of ecological details on birds which are not of direct
importance for conservation matters have been included in order to leave a
relatively complete published description of our findings. In Appendix 5.3 we
comment on the completeness of the ornithological survey and also on our
experience with the methods used. Though this report may not be the right forum
for the latter we decided to include it since there is much interest among
ornithologists for developing a standard manual for surveys of tropical
forests. For the planning of such a manual (and for planners of new surveys in
the Eastern Arc and elsewhere) we believe that it is useful if notes are left
in an easily accessible way from all surveys on experiences and ideas of
methods and ways of presenting data.
The
contract with RSPB included fieldwork only on birds. However, there was much
interest from the Botanical and Zoological Museum of Copenhagen in forming a
multi-disciplinary team (to obtain data for the Eastern Arc Biodiversity
Programme and to train and involve students and Tanzanian foresters) so the
participation of botanists was ensured from the earliest phase of the planning
and later people working with millipeds and mammals agreed to participate.
Botany
(Section 8). A larger database exists of botanical plots from many
Tanzanian forests. These data are of species composition and
vegetatiori*structure. However, many areas in the Ulugurus had not been studied
before, including the eastern slopes of the Uluguru South F.R. There was
therefore much interest in obtaining data from these areas. At each of the 12
mistnetting stations in the Uluguru mountain forests (Kimhandu, Lanzi and Tegetero
areas) a 25x25 m plot was assessed for woody species with a stem diameter (dbh)
of more than 3 cm. All plots were placed adjacent to the mistnetting sites. A
further three plots were assessed in the lowland Kimboza Forest during the
survey. To obtain knowledge on the use of plants by local villagers,
ethnobotanical data were collected.
It was not
possible to identify all plant specimens collected at Kimhandu and Lanzi within
the time available for producing the botany chapter because of other duties and
since some of the specimens have to be compared with material from other
herbariums. Preliminary data are listed in this report to give some idea about
the vegetation at the study sites and the character of the data. Full species
lists and further structural data will be published in papers planned by JCL
and PH. The results of the botanical plots at Tegetero and results of the
ethnobotanical research are published in a separate report (Mabula et al.
1994). The results of three plots assessed in Kimboza Forest by JCL in November
will be published later. An updated assessment of the biodiversity value of the
Uluguru forests in terms of plants is presented in Section 8. It was, however,
not possible to go into an assessment of percentages of endemism within the
time available for producing the botany chapter.
Mammals and
millipeds (Sections 6 and 7). Initially the field team comprised only
ornithologists and botanists. In August 1993 we succeeded in making a final
arrangement with LLS and JNK who were planning to do fieldwork in the Udzungwas
in September 1993 that they should spend three of their weeks in Tanzania in
the Ulugurus in October, collecting information on millipeds and mammals. The
collection of field data were mostly for their own thesis subjects (millipede
and Tree Hyrax ecology and taxonomy) but they agreed on producing an account
for this report on millipeds and mammals. For mammals field data are presented
of hunting pressure (interviews and own observations) together with a list of
field observations of mammals made during this survey. An up-dated species list
for the Ulugurus and an assessment of the biodiversity value is also presented.
For millipeds an updated species list is presented for the Ulugurus,
supplemented with an updated assessment of biodiversity value of the Ulugurus
for selected invertebrate groups.
Tanzanian
participation. Following discussions at University of Dar es Salaam
in July 1993 with participation of Drs. Jon Fjeldså (Zoological Museum of
Copenhagen), Ib Friis and Jon Lovett (Botanical Museum of Copenhagen) and
representatives from University of Dar es Salaam, Tanzania Forestry Research
Institute, Institute of Resource Assessment and the Tanzania Commission for
Science and Technology it was decided that on this survey foresters from the
Tanzania Forestry Research Institute (TAFORI) should participate to learn more
about standardised botanical fieldwork and biodiversity projects. Later we
ensured the participation of SIM from the Regional Forest Office in Morogoro
and of JK from WildLife Conservation Society of Tanzania (WCST). In October
1993 the foresters agreed to collect information on local villagers' use of
woody forest plants.
Conservation
of biodiversity (Section 9). No up-to-date assessment of the
biodiversity value of the Ulugurus existed. Brief overviews of endemism in
certain groups for which information was relatively easily accessible was
therefore included. Due to lack of time (and information) it has, however, not
been possible to standardise the presentation between groups and to go into a
strict comparison with other mountains (except for bird species of special
conservation importance).
Conservation
of other values in the Ulugurus and the problems the forests and the
surrounding human population face (Section 9). A short
and easy-read account has been included (Section 9) on problems for the
conservation of the Uluguru forests in order to put the information on
biodiversity into a wider perspective. We hope that this information, based on
the literature and observations from our survey, will be of help to those who
wish to get a quick overview of problems in the mountains. Visiting such an
area for the first time it is useful with an entry to the literature. The last
part of Section 9 lists proposals for conservation actions, based on the
findings of our own fieldwork and information from the literature.