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rodent community structure in tropical forests in south Vietnam:comparative ecology of two dominant species and implications for conservation

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Integrative Zoology 2007年第3期2卷 136-143页

作者： German V.KUZNETSOV Tatiana N.FILATOVA Severtsov Institute of Ecology and Evolution Russian Academy of SciencesMoscowRussia Russia Vietnamese Tropical Centre Ho Chi Minh CityVietnam

rodents were sampled using the capture-mark-recapture technique along transects in disturbed and undisturbed tropical forest in Cat Tien National Park in south *** transects comprised two strata:traps were placed on the ground and in the canopy 2–12 m above the *** the main transect,which was 1500 m long and located in undisturbed forest,a total of 438 rodents(173 squirrels and 265 murids)of 12 different species(one Scuridae sp.;11 Muridae spp.)were marked between January 2005 and January *** this study site and at another undisturbed tropical forest site in the same area,two species dominated:the rat Maxomys surifer(Miller,1900)and the squirrel Callosciurus flavimanus(Geoffroy,1831).During the study period we observed no significant difference between the average abundances of the two species(4.67±0.86 and 3.1±0.85 individuals per 100 trap nights,respectively)or between the average proportions of resident squirrels and rats(60.0±24.1 and 62.5±11.5,respectively).The number of squirrels that were permanent residents(*** in the same habitat for 1 year)was eightfold the number of rats that were permanent *** addition,there was some synchrony in the daily capture dynamics of squirrels and of *** observed no significant difference in the total abundance of small mammals between the arboreal and ground *** two disturbed tropical forest sites in the same area,however,no such balance between squirrels and rats was observed,and the density of *** was very *** suggest that the relationship between these two dominant species can act as an indicator of the integrity of tropical forest ecosystems in south Vietnam.

关键词： rats rodent community squirrels tropical forest Vietnam.

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Deciphering the effects of disperser assemblages and seed mass on patterns of seed dispersal in a rodent community

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Integrative Zoology 2017年第6期12卷 457-467页

作者： Aleksandra WRÓBEL Rafal ZWOLAK Department of Systematic Zoology Institute of Environmental BiologyAdam Mickiewicz UniversityPoland

The sizes of both seed dispersers and seeds are traits that are likely to interact to influence seed fate in many synzoochoric plant ***,we examined whether members of a granivorous rodent community consisting of species of different body size vary in their effectiveness as seed dispersers,and how this relationship may be altered by seed *** marked northern red oak(Quercus rubra)acorns with plastic tags and placed them in size-selective rodent *** exclosures allowed differential access of rodent groups based on different body size:(i)small(*** spp.);(ii)small and medium(*** striatus);and(iii)small,medium and large(*** carolinensis)species of *** removal did not differ among exclosure types,but more seeds were missing when removed by small rodents,probably because of *** treatments did not influence the relative frequency of acorn ***,small rodents cached considerably fewer and partially ate more acorns than the other 2 *** mean dispersal distance was the longest for cages with medium openings,intermediate for cages with large openings and the shortest for cages with small *** mass positively affected the probability of caching and this relationship was unaffected by exclosure *** conclusion,granivorous rodents of different body sizes strongly differed in their interactions with acorns,with small rodents acting primarily as acorn predators and medium and large species contributing significantly more to dispersal of red oaks.

关键词： acorn dispersal initial seed fate plant-animal interactions rodent community scatterhoarding

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CHARACTERISTICS OF SMALL rodent community IN DIFFERENT AGED CUT-OVER AREAS IN DAILING MOUNTAIN

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Journal of Northeast Forestry University 1994年第4期5卷 52-57页

作者：高中信姜洪海高继宏赵淑琴 Northeast Forestry University Harbin China

The field investigation of small rodent community was made in Liangshui Reserve, Heilongiiang Province, in 1992. Species composition and percentage of each species of the small rodents in different aged clear-cut-over areas were analyzed. The change of rodent community was associated with the change of vegetation cover. Forest harvest, which results in change of light, temperature, water and othcr ecological factors, made change of vegetation cover and was the main cause for the change of small rodent community. The small rodents were low in number of species population and diversity index in the inatial stages after clear cutting. The diversity index of rodents in order of different aged cut-over areas were 5-year-old area >20-year-old area > 28-year-old area > 1 -year-old area > 10-year-old area.

关键词： Cut-over area rodent community Forest harvest Diversity index

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