气候变化领域集成服务门户(CCPortal): Abundance and habitat covariates of lesser florican and spiny-tailed lizard in Kachchh, India (2008-09)

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.832225
	Abundance and habitat covariates of lesser florican and spiny-tailed lizard in Kachchh, India (2008-09)
	Dutta; Sutirtha; Jhala; Yadvendradev
发布日期	2014-05-03
数据集类型	dataset
英文简介	Balancing biodiversity conservation and rural food security is a pressing challenge for developing countries, with tropical agro-grasslands facing particularly high human dependence and species' endangerment. We explored the potential influences of agricultural growth and allocation of multiple landuses on the status of two threatened species inhabiting semiarid agro-grasslands of India. Sampling 1 km**2 cells for flagship lesser florican Sypheotides indica and 0.03 ha plots for spiny-tailed lizard Saara hardwickii, we modeled species' abundances with land-cover, vegetation structure, and disturbances using N-mixture (florican) and poisson (lizard) models. Florican abundance responded unimodally to herbaceous biomass (grassland proportion × ground-vegetation height), wherein, numbers peaked at optimally large combinations of grassland proportion (0.5–1) and ground-vegetation height (35–65 cm). Whereas, lizard abundance was positively influenced by grassland occurrence and ground-vegetation < 50 cm cover but negatively influenced by cropland occurrence. Livestock grazing promoted short vegetation over tall vegetation, partially hindering florican but facilitating lizard. Such inter-specific differences in landuse response invoked multi-criteria planning based on surrogates of ecologically distinct species-groups. Fitting our models to simulated landuse scenarios, we demonstrated that managing florican habitats as grassland interspersed with croplands and pastures spared rotationally provided optimal results at low production-level. However, projected agricultural growth would cause considerable declines of florican (>30%) and lizard (>20%) populations. To prevent this, remaining florican occupied agro-grasslands should be secured as Community/Conservation reserves so that further landuse conversions can be legally restricted. Simultaneously, government schemes like food provisioning to small farmers through public distribution system could be harnessed to compensate for production deficit within/adjoining reserves.
空间范围	Median Latitude: 23.224087 * Median Longitude: 68.948828 * South-bound Latitude: 23.182410 * West-bound Longitude: 68.804220 * North-bound Latitude: 23.258570 * East-bound Longitude: 69.058790
语种	英语
国家	国际
学科大类	气候变化
学科子类	气候变化
文献类型	数据集
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/217502
推荐引用方式 GB/T 7714	Dutta,Sutirtha,Jhala,et al. Abundance and habitat covariates of lesser florican and spiny-tailed lizard in Kachchh, India (2008-09).2014-05-03.https://doi.org/10.1594/PANGAEA.832225.