Data from: Range size, local abundance and effect inform species descriptions at scales relevant for local conservation practice

Understanding species abundances and distributions, especially at local to landscape scales, is critical for land managers and conservationists to prioritize management decisions and informs the effort and expense that may be required. The metrics of range size and local abundance reflect aspects of the biology and ecology of a given species, and together with its per capita (or per unit area) effects on other members of the community comprise a well-accepted theoretical paradigm describing invasive species. Although these metrics are readily calculated from vegetation monitoring data, they have not generally (and effect in particular) been applied to native species. We describe how metrics defining invasions may be more broadly applied to both native and invasive species in vegetation management, supporting their relevance to local scales of species conservation and management. We then use a sample monitoring dataset to compare range size, local abundance and effect as well as summary calculations of landscape penetration (range size × local abundance) and impact (landscape penetration × effect) for native and invasive species in the mixed-grass plant community of western North Dakota, USA. This paper uses these summary statistics to quantify the impact for 13 of 56 commonly encountered species, with statistical support for effects of 6 of the 13 species. Our results agree with knowledge of invasion severity and natural history of native species in the region. We contend that when managers are using invasion metrics in monitoring, extending them to common native species is biologically and ecologically informative, with little additional investment. Resources in this dataset:Resource Title: Supporting Data (xlsx). File Name: Espeland-Sylvain-BiodivConserv-2019-raw-data.xlsxResource Description: Occurrence data per quadrangle, site, and transect. Species Codes and habitat identifiers are defined in a separate sheet.Resource Title: Data Dictionary. File Name: Espeland-Sylvain-BiodivConserv-2019-data-dictionary.csvResource Description: Details Species and Habitat codes for abundance data collected.Resource Title: Supporting Data (csv). File Name: Espeland-Sylvain-BiodivConserv-2019-raw-data.csvResource Description: Occurrence data per quadrangle, site, and transect.Resource Title: Supplementary Table S1.1. File Name: 10531_2019_1701_MOESM1_ESM.docxResource Description: Scientific name, common name, life history group, family, status (N= native, I= introduced), percent of plots present, and average cover when present of 56 vascular plant species recorded in 1196 undisturbed plots in federally-managed grasslands of western North Dakota. Life history groups: C3 = cool season perennial grass, C4 = warm season perennial grass, SE = sedge, SH = shrub, PF= perennial forb, BF = biennial forb, APF = annual, biennial, or perennial forb.

深刻理解物种的丰度和分布，尤其是在局部至景观尺度上，对于土地管理者及保护主义者来说是至关重要的。这有助于他们优先考虑管理决策，并指导所需投入的人力与物力。物种的分布范围和局部丰度指标反映了特定物种的生物学和生态学特征，与该物种对群落其他成员的人均（或单位面积）影响共同构成了描述入侵物种的广为接受的理论范式。尽管这些指标可以从植被监测数据中轻松计算得出，但它们通常（尤其是在评估影响方面）并未被广泛应用于本地物种。本文阐述了如何将这些定义入侵的指标更广泛地应用于植被管理中的本地和入侵物种，以支持其在物种保护和管理局部尺度上的相关性。随后，我们利用一个样本监测数据集，对比了北美北达科他州西部混合草地群落中本地和入侵物种的分布范围、局部丰度和影响，以及景观渗透度（分布范围×局部丰度）和影响（景观渗透度×影响）的汇总计算。本文利用这些汇总统计数据量化了56种常见物种中的13种的影响，并对于其中6种物种的影响提供了统计支持。我们的结果与该地区入侵严重程度和本地物种的自然历史知识相符。我们认为，当管理者在监测中使用入侵指标时，将其扩展到常见本地物种不仅具有生物学和生态学上的信息价值，而且几乎无需额外投资。本数据集包含以下资源：
资源标题：支持数据（xlsx）。文件名：Espeland-Sylvain-BiodivConserv-2019-raw-data.xlsx
资源描述：每个网格、地点和样带的物种出现数据。物种代码和栖息地标识符在单独的表格中定义。
资源标题：数据字典。文件名：Espeland-Sylvain-BiodivConserv-2019-data-dictionary.csv
资源描述：收集的丰度数据的物种和栖息地代码细节。
资源标题：支持数据（csv）。文件名：Espeland-Sylvain-BiodivConserv-2019-raw-data.csv
资源描述：每个网格、地点和样带的物种出现数据。
资源标题：补充表S1.1。文件名：10531_2019_1701_MOESM1_ESM.docx
资源描述：记录在1196个未受干扰的联邦管理草地中的56种维管植物物种的学名、普通名、生命史组、科、状态（N=本地，I=引入）、存在图块的平均百分率和存在时的平均覆盖度。
生命史组：C3 = 冷季多年生草本植物，C4 = 热季多年生草本植物，SE = 莎草，SH = 灌木，PF=多年生草本植物，BF = 二年生草本植物，APF = 一年生、二年生或多年生草本植物。