Orłowski Grzegorz, Karg Jerzy, Jerzak Leszek, Bocheński Marcin, Profus Piotr, Książkiewicz-Parulska Zofia, Zub Karol, Ekner-Grzyb Anna, Czarnecka Joanna
Institute of Agricultural and Forest Environment, Polish Academy of Sciences, Bukowska 19, 60-809 Poznań, Poland.
Department of Nature Conservation, Faculty of Biological Sciences, University of Zielona Góra, Zielona Góra, Poland.
Data Brief. 2018 Oct 24;21:1186-1203. doi: 10.1016/j.dib.2018.10.064. eCollection 2018 Dec.
The dataset presented in this data paper supports "Linking land cover satellite data with dietary variation and reproductive output in an opportunistic forager: Arable land use can boost an ontogenetic trophic bottleneck in the White Stork ciconia" (Orłowski et al. 2019) [1]. Analysis of data on diet and prey composition based on an investigation of 165 pellets of White Storks sampled from 52 nests showed that their diet was based primarily on 'eurytopic prey' (embracing taxa from grassland and a variety of non-cropped habitats), the biomass contribution of which in the diet was disproportionately (3-4-fold) higher than the percentage of available corresponding habitats. Similarly, prey items from water/wetland sites prevailed over the availability of corresponding habitats. The opposite pattern characterized prey taxa from arable habitats and forests, the contribution of which was lower than the availability of the corresponding habitats. The total energy content per pellet (calculated by summing the energy content of all individual prey items across one specific prey group) was the most strongly correlated with the biomass of Orthoptera, thereafter with that of mammals, other vertebrates, earthworms and other invertebrates, but not with the biomass of Coleoptera. White Storks from nests of low productivity pairs (i.e. with 1-2 fledglings) consumed a significantly (up to two-fold) higher biomass of Coleoptera, Orthoptera and all invertebrates, which also translated into a higher total biomass and a higher total energy content compared to the diet of high-productivity pairs (i.e. with 3-4 fledglings). Our data, in particular those relating to energy content in a variety of invertebrate taxa, and their body mass and functional division in terms of habitat preferences should be useful for other researchers to calculate energy budgets of predatory animals living in agricultural landscapes in Europe.
本数据论文中呈现的数据集支持《将机会主义觅食者的土地覆盖卫星数据与饮食变化和繁殖产出联系起来：耕地利用会加剧白鹳的个体发育营养瓶颈》（奥尔沃夫斯基等人，2019年）[1]。基于对从52个巢穴采集的165颗白鹳粪便进行调查，对饮食和猎物组成数据的分析表明，它们的饮食主要基于“广适性猎物”（包括来自草地和各种非耕种栖息地的类群），其在饮食中的生物量贡献比相应可用栖息地的百分比高出不成比例的（3至4倍）。同样，来自水/湿地栖息地的猎物种类在相应栖息地的可用性方面占主导地位。相反的模式表现在来自耕地栖息地和森林的猎物类群上，其贡献低于相应栖息地的可用性。每颗粪便的总能量含量（通过将一个特定猎物组中所有个体猎物的能量含量相加计算得出）与直翅目昆虫的生物量相关性最强，其次与哺乳动物、其他脊椎动物、蚯蚓和其他无脊椎动物的生物量相关，但与鞘翅目昆虫的生物量无关。来自低繁殖力配对巢穴（即有1至2只雏鸟）的白鹳消耗的鞘翅目昆虫、直翅目昆虫和所有无脊椎动物的生物量显著更高（高达两倍），与高繁殖力配对巢穴（即有3至4只雏鸟）的饮食相比，这也转化为更高的总生物量和更高的总能量含量。我们的数据，特别是那些与各种无脊椎动物类群的能量含量及其根据栖息地偏好的体重和功能划分相关的数据，应该有助于其他研究人员计算生活在欧洲农业景观中的捕食动物的能量预算。
