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Floral resources in four urban green spaces: an exploratory comparative case study of species composition, pollen, and nectar availability

Version 1.0

Roguz, Katarzyna, 2026, "Floral resources in four urban green spaces: an exploratory comparative case study of species composition, pollen, and nectar availability", https://doi.org/10.58132/CAAR21, Dane Badawcze UW, V1

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Description

Description of the dataset

This dataset contains raw field data on flowering plant species recorded in urban green areas. It documents the taxonomic composition of flowering plants and measurements related to pollen and nectar production, together with abundance estimates used to assess floral resource availability for pollinators. Each row represents one plant species recorded in one study population during a single sampling event.

The dataset consists of unprocessed field measurements used for subsequent analyses in the associated research study.

Structure of the data

The dataset is provided as a single comma-separated values (CSV) file. Rows represent individual records of plant species observed in a given population on a given date, and columns contain taxonomic information, sampling information, and floral resource variables.

Variable description

species

Scientific name of the recorded plant species.

family

Botanical family of the recorded plant species.

data

Date of sampling.

population

Code of the study population / sampling site.

anther mass

Mean dry mass of a single anther.

anther_nb

Number of anthers per flower.

flower_nb

Number of flowers per inflorescence.

inflorescence_nb

Number of inflorescences per sprout.

sprout_nb

Number of sprouts recorded for a given species in the sampling unit.

total pollen mass [mg]

Estimated total pollen mass produced by a species in the sampling unit, expressed in milligrams.

nectar mass

Mean nectar mass per flower.

total nectar mass [g]

Estimated total nectar mass produced by a species in the sampling unit, expressed in grams.

Data collection

Data were collected during field surveys conducted in urban green areas during the flowering season. Species were identified in situ using standard botanical identification keys. Sprout numbers were counted directly, while the number of inflorescences per sprout was estimated as a mean value based on representative individuals.

Data processing

No data normalization, filtering, or transformation was applied prior to archiving. Calculated values are limited to the multiplication of sprout number and inflorescences per sprout to obtain total inflorescence counts.

Reuse potential

The dataset may be reused for studies on urban plant community structure, floral resource availability, pollination ecology, and landscape ecology. It is suitable for comparative analyses across urban habitats and for meta-analyses of floral abundance patterns.

(2024)
Subject
Earth and Environmental Sciences
Keyword

pollen, nectar, city

CC0 Creative Commons Zero 1.0 CC0 Creative Commons Zero 1.0

1 File
raw_data.tab
Tabular Data - Original format: Comma Separated Values - 46.8 KB - Apr 2, 2026 - 0 Downloads
License: CC0 Creative Commons Zero 1.0
12 Variables, 532 Observations - UNF:6:KiaH2lshMonQQdT4Ls0UtQ==
Raw data for Floral resources in four urban green spaces: an exploratory comparative case study of species composition, pollen, and nectar availability
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