DOI: 10.5061/dryad.931zcrjv2
title: Small mammal community composition in the Diannan area: Long-term monitoring (2005-2017)

description: As one of the richest areas of mammal diversity in China, the Hengduanshan
 region is also a major source and endemic area for many natural epidemics.
 However, few studies have been conducted to assess the effects of habitat
 differences and anthropogenic disturbances on small mammal community
 structure through continuous monitoring in one area of this region. As a
 representative taxon for studying the effects of environmental changes on
 biodiversity, examining the community structure of small mammals can
 indicate the quality of local habitats and offer data to support
 ecological conservation efforts. Surveys were conducted within Diannan
 area by deploying rat cages. Cages were randomly deployed in four main
 habitats (agricultural fields, shrublands, residential areas, and
 vegetable fields) from January 2005 to December 2017. The
 "smallmammals_survey" file contains detailed information on
 capture time, number of captures, and site numbers for each species.
 Specific sampling site details are provided in the "sampling
 sites_2005-2017" file. Additionally, climate data for the region
 during the survey period is included, along with relevant code. We
 analyzed the temporal variations in small mammal communities in the
 Diannan area through species composition and diversity assessments. We
 assessed the differences in habitat selection and the extent of
 anthropogenic disturbance on the community structure of local small
 mammals. We hope this information is helpful for your global biodiversity
 research efforts.
description: # Small mammal community composition in the Diannan area: Long-term
 monitoring (2005-2017)
 [https://doi.org/10.5061/dryad.931zcrjv2](https://doi.org/10.5061/dryad.931zcrjv2) ## Description of the data and file structure Specific information about the sampling sites can be found in the file "sampling sites_2005-2017". In this study, we selected four habitats for sampling, with twelve sampling points in each habitat. The file includes the latitude and longitude of the sampling points, the main plants at each sampling point, and the abbreviated names of the sampling sites as they appear in "smallmammals_survey_2005-2017". | VARIABLE | DEFINITION | UNIT | | :------------------ | :--------------------------------------------------------------------------------------------------------------- | :-------------- | | Habitat | Types of habitats | | | Site | The numbering of sampling sites for each habitat | | | Longitude | Longitude | decimal degrees | | Latitude | Latitude | decimal degrees | | Site Name | The sampling site for the captured species,equal to the 'Sampling site' in the "smallmammals\_survey\_2005-2017" | | | Dominant vegetation | The predominant vegetation within each sampling point. | | The "smallmammals_survey_2005-2017" which can be used for diversity analysis. -Number of small mammals from the different locations and the different years: The file has the Species;Year;Month;Data;Time;Number;Sampling site | VARIABLE | DEFINITION | UNIT | | :------------ | :---------------------------------------------------------------------------------------------- | :------------- | | Species | The scientific nomenclature (binomial nomenclature) for small mammals captured in this region. | | | Year | The year when the species was captured | year | | Month | The month when the species was captured | month | | Date | date | day/month/year | | Time | Capture Time | hour：minute | | Number | The number of individuals of the species captured at the sampling site during this time period. | | | Sampling site | The sampling site for the captured species | | "Climate indicators_2005-2017" provides climate data for the Diannan region over thirteen years. If studying the impact of global climate change on small mammal communities, this data can be utilized. | VARIABLE | DEFINITION | UNIT | | :------------------ | :--------------------------------------------- | :---- | | Temperature | Average annual temperature | ℃ | | Total precipitation | Average annual total precipitation | mm | | Relative humidity | Average annual relative humidity | % | | Evaporation | Average annual evaporation | mm | | Snowfall | average annual snowfall | mm | | PM2.5 | Average annual atmospheric PM2.5 concentration | µg/m3 | | PM10 | Average annual atmospheric PM10 concentration | µg/m3 | | Surface O₃ | Average annual atmospheric O₃ concentration | µg/m3 | | Surface CO | Average annual atmospheric CO concentration | µg/m3 | | Surface SO₂ | Average annual atmospheric SO₂ concentration | µg/m3 | | Surface NO₂ | Average annual atmospheric NO₂ concentration | µg/m3 | | Surface CO₂ | Average annual atmospheric CO₂ concentration | µg/m3 | | Wind speed | Average annual wind speed | m/s | | Sunshine duration | Average annual sunshine duration | h | Additionally, considering the possibility of using a random forest model to assess the climate's impact on the communities, the R.txt file contains some code we used for data analysis with this model. We hope this information is helpful for your research on global biodiversity. ## Location Diannan area Yunnan Province, China