Thư viện tri thức trực tuyến
Kho tài liệu với 50,000+ tài liệu học thuật
© 2023 Siêu thị PDF - Kho tài liệu học thuật hàng đầu Việt Nam

Butterfly Diversity And Conservation In Kon Ka Kinh National Park
Nội dung xem thử
Mô tả chi tiết
1
* Abstract
Kon Ka Kinh National Park belongs to Kon Tum Plateau and has high
value of diversity in Vietnam Forestry. Since the first survey in 1999, the butterflies
in Kon Ka Kinh is little known. We conducted the investigation to study their
butterfly population and factors affect butterfly distribution in a mountainous forest.
Pollard walk method with a hand-net method was used for observation. 323 species
were recorded, including 235 species in this survey. There were three new records
for Vietnam and three new records in Central Vietnam. Nymphalidae is the
dominating family. Our result indicated the impact of seasons, water resource,
elevation and forest type on butterfly diversity. Their diversity is higher in the rainy
season, where above ground water resource is highly available. The diversity
indexes also are higher at a lower elevation and disturbed forest area.
1
I. INTRODUCTION ................................................................................................. 1
1.1. Background ..................................................................................................... 1
1.2. Aims, scope, research question ...................................................................... 5
II. LITERATURE REVIEW ...................................................................................... 6
2.1. Systematics. .................................................................................................... 6
2.2. Ecology and behaviors.................................................................................... 7
2.3. Butterflies as an indicator of environment ..................................................... 8
2.4. Factors influencing butterfly diversity .........................................................10
2.5. Butterfly conservation: .................................................................................12
III. MATERIAL AND METHODS ..........................................................................14
3.1. Study area......................................................................................................14
3.2. Transect selection: ........................................................................................17
3.3. Data collection: .............................................................................................18
3.4. Data analysis ................................................................................................. 19
IV. RESULTS ............................................................................................................21
4.1. Butterflies in Kon Ka Kinh National Park ...................................................21
4.1.1. The butterfly fauna.................................................................................21
4.1.2. Ecological complexes of tropical butterflies in Kon Ka Kinh N.P. .....23
4.1.3. Kon Ka Kinh butterfly in conservation .................................................24
4.1.4. New distribution records: ......................................................................25
4.1.5. Biogeographical features .......................................................................25
4.2. Butterfly indexes in Kon Ka Kinh National Park ........................................26
4.3. Factors influence to butterfly population distribution ................................. 28
V. DISCUSSION ......................................................................................................33
5.1. Butterfly fauna in Kon Ka Kinh National Park............................................33
5.2. Butterflies diversity along the transect .........................................................35
5.3. Factors impact to butterfly diversity: ...........................................................36
VI. CONCLUSION ...................................................................................................38
VII. ACKNOWLEDGMENT .....................................................................................40
VIII. APPENDIX ...................................................................................................41
IX. REFERENCES ....................................................................................................53
LIST OF FIGURES
Figure 1:Kon Ka Kinh national park map ................................................................................ 15
Figure 2: Average Monthly Temperature and Rainfall............................................................. 16
Figure 3: Percentage of butterfly species in each family recorded in Kon Ka Kinh N.P.
(with and without consideration of species abundance) and entirely in Vietnam .................... 22
Figure 4: Taxonomical compositions of butterflies in Kon Ka Kinh N.P. ............................... 23
Figure 5: Percentage of common and forest butterfly species recorded ................................... 24
Figure 6: Correspondence analysis ........................................................................................... 29
Figure 7: Butterfly rarefaction curve for seasons ..................................................................... 30
Figure 8: Butterfly rarefaction curve based on water condition ............................................... 31
Figure 9: Rarefaction curves by forest types and altitude factors ............................................. 31
LIST OF TABLE
Table 1: List of endemic species in Kon Ka Kinh National Park ............................................. 26
Table 2: Butterfly diversity indices .......................................................................................... 28
Table 3: Diversity permutation test .......................................................................................... 28
1
I. INTRODUCTION
1.1. Background
Among invertebrate conservation group, the butterflies are among one of the
most popular focal groups. They are well known as indicators of tropical forest
ecosystems and their ecological condition. (Oostermeijer & Van Swaay, 1998).
Butterflies are a good group of insects for studying the effects of human activity. Under
pressure from population growth, the forest area is destroying to increase the
fragmentation and biodiversity loss.
A butterfly is a sensitive group with the changing of the environment
(Mecenero, 2015). In many representatives of this group, the specific characteristics of
coloration, wing pattern, and genital morphology may demonstrate biogeographical
information and provide useful parameters for studying the geographic variability of
species. Butterflies represent a suitable object for solving the problems related to the
specific features of geographic, landscape, seasonal, and climatic distribution of species
(A. Monastyrskii, 2007b). Among many reasons that could be named to justify the use
of this group as an object for solving the above problems, the following are most
important: (1) The butterfly taxonomy is well-developed (De Jong, Vane-Wright, &
Ackery, 1996; Rod & Ken, 1988); (2) They are present in practically all the known
tropical habitats of Vietnam (A. Monastyrskii & Holloway, 2013; A. L. Monastyrskii
& Devyatkin, 2015); (3) Their life cycle is often associated with specific host plants
and some other groups of insects and vertebrate animals. The changes in the vegetation
are always accompanied by the changes in the taxonomic composition of primary
consumers, including butterflies (Dover, 1996; Ehrlich & Raven, 1964); (4) Butterflies
can be easily observed and counted in nature, and can therefore be used for
demonstrating seasonal changes in abundance (Pollard, 1975; Pyle, Hughes, &
Institute, 1992); (5) The boundaries of distribution ranges of butterflies can be vertified
with a satisfactory degree of precision based on museum collections and illustrated
2
guides; (6) In many representatives of this group, the specific traits of coloration, wing
pattern, and genital morphology provide the biogeographical information and provide
convenient parameters for studying the geographic variability of species (Benedick et
al., 2007; Dover, 1996; Gilbert & Singer, 1975)
During the last twenty years, butterflies have been successfully utilized by many
national and international programs for conservation activity as a perfect tool
supplementing the main methodology for the assessment of natural
resources(Bonebrake, Ponisio, Boggs, & Ehrlich, 2010; T. New, Pyle, Thomas,
Thomas, & Hammond, 1995; T. R. New, 1997). Practically nearly all conservation
projects implemented in Vietnam from 1993 have included butterfly study into
biodiversity research programs. These faunistic surveys showed a high level of
butterfly diversity and character of species distributions (A. Monastyrskii, 2007a; A. L.
Monastyrskii & Devyatkin, 2015). There were discovered a high number of species
which have been described as new to science. Many of these new species are endemics
to Vietnam and were found very locally (A. L. D. Monastyrskii, Alexey, 2000, 2012).
The majority of endemic species are characterized by restricted ranges and are located
in some topographically isolated mountain areas including mountain massifs of
Vietnamese central highlands: Central Truong Son Range; Kon Tum Plateau, and for
example, Kon Ka Kinh and Ngoc Linh national parks.
Kon Ka Kinh is an isolated mountain massif located in Gia Lai Province of Kon
Tum Plateau. It is situated within Endemic Bird Area and supports six restricted-range
bird species(Le, 2000). Kon Ka Kinh is also a globally important site for the
conservation of amphibian diversity. This area supports a number of amphibian
endemics (Tordoff, Tran, Nguyen, & Le, 2004). The National park also promotes a
high variety of insects, in particular butterflies. During the only two-months survey in
March/April 1999 conducted by BirdLife International, there were recorded over 200
butterfly species. Eight species collected at that time were previously unknown to
3
science, and they have been described as new to science (A. L. Monastyrskii &
Devyatkin, 2015). Unfortunately, since 1999 there were no additional organized
surveys that may be extended our knowledge on faunistic, biogeographic, ecological
and conservation aspects of this topographically isolated area
In French colonial times (before 1945), the forests here were not exploited or
impacted. Roads and vehicles were not in good conditions, so forest products could not
be transported to the market. In 1964, American troops landed in the National Park
area. They occupied and developed military bases on many hills. They exploited and
depleted around 1000 hectares of primary forests for different purposes (Le, 2000).
Following the Birdlife report (Le, 2000), in 1980, the Mang Yang forestry
company was established and managed the forest in the region. During this time, the
main task of the company was logging. Each year, the company harvested
approximately 15,000-20,000 m3
. Exploitation is carried out from this area to other
areas. An activity of forest logging has gravely affected and depleted the forest
resources. The majority of secondary forests today are a consequence of this period.
Besides these activities, illegal logging also occurred. This contributed significantly to
forest degradation in Kon Ka Kinh forest.
In 2002, Kon Ka Kinh National Park was established. The logging activities
have been prohibited completely. Instead of logging, forest protection, reforestation,
enrichment planting, and restoration activities have been promoted. However, illegal
logging has still occurred in some remote places with fewer forest rangers and larger
trees. During this time, forest resources have also been affected by the activities of the
local people as farming, grazing, harvesting of forest products such as honey, orchids
and so on.
Kon Ka Kinh forms part of a contiguous landscape of natural habitats in northeastern Gia Lai province which supports some of the most intact faunal and floral
communities in the central Truong Son. The Park maintains a range of montane habitat