Bird distribution surveys at Carpinteria Salt Marsh, California USA, January 2012 to March 2013

We collected spatial data on birds as part of a broader effort to understand food webs in California Estuaries. The survey area was Carpinteria Salt Marsh, California USA, which comprises 9 Ha tidal channels, 2 Ha salt flats, 17 Ha upland habitat, 6 Ha tidal pans, 52 Ha vegetated marsh, and 2 Ha tidal flats. A fixed transect was walked and birds were mapped if they were in the intertidal habitat. We also included some species, like raptors, if they were perched in adjacent upland habitats, but potentially interact with the estuary. With GIS, these data can be used to evaluate bird distributions, by species, in space and time, in this habitat. There are two data files in this release (1) Bird distribution surveys at Carpinteria Salt Marsh, California USA, January 2012 to March 2013 is a list of locations (lat long) where birds were seen, organized by date and species; (2) Walking transect path for bird distribution surveys at Carpinteria Salt Marsh, California USA, January 2012 to March 2013 is a vector file showing the transect path from which we surveyed birds. The University of California, Santa Barbara Natural Reserve System provided access to the Carpinteria Salt Marsh Reserve.为深入探究加利福尼亚河口的食物网结构，我们收集了相关鸟类空间分布数据，作为该系统性研究的组成部分。本次调查的区域为美国加利福尼亚州卡皮特里亚盐沼（Carpinteria Salt Marsh），该区域生境构成包括9公顷（Ha）潮沟、2公顷盐坪、17公顷高地生境、6公顷潮间水塘、52公顷植被化沼泽以及2公顷潮滩。调查采用固定样线法开展，对处于潮间带生境中的鸟类进行点位标注；若猛禽（raptors）等类群停歇于邻近高地生境且可能与河口生态系统存在相互作用，亦将其纳入观测记录范围。借助地理信息系统（GIS），本数据集可用于分析该生境中不同鸟类类群的时空分布格局。本发布包包含两份数据文件：(1) 《美国加利福尼亚州卡皮特里亚盐沼鸟类分布调查数据（2012年1月—2013年3月）》：按日期与物种分类整理的鸟类观测点位（经纬度）列表；(2) 《美国加利福尼亚州卡皮特里亚盐沼鸟类调查样线轨迹数据（2012年1月—2013年3月）》：记录本次鸟类调查所采用的固定样线的矢量文件（vector file）。加利福尼亚大学圣巴巴拉分校自然保护区系统（University of California, Santa Barbara Natural Reserve System）为本次调查提供了卡皮特里亚盐沼保护区的访问许可。