Realm: Terrestrial
Climate: Temperate
Biome: Temperate grasslands, savannas and shrublands
Central latitude: 43.075001
Central longitude: 141.333327
Duration: 2 years, from 1979 to 1989

1834 records

35 distinct species

Across the time series Lasioglossum sp is the most frequently occurring species

Methods

Bees were sampled periodically at the university campus (UC) and Botanic Garden (BG) of Hokkaido University in Sapporo (43°03´N 43°06´N, 141°19´E 141°21´E). UC is located northwest of the Sapporo station and covers about 1.0 × 1.5 km square. University buildings have been added continuously since 1959. BG occupies 0.3 × 0.3 km square and is southwest of Sapporo station and south of UC. The garden opened in 1886 and includes remnant native plants, patches of non-native plants, and a collection of plants from Hokkaido and neighboring areas.Following the methods used in 1959 (Sakagami & Fukuda 1973), bees were sampled weekly from April to September, 1979 and 1989 for 4 or, rarely, 5 hours each week at both UC and BG. These hourly samplings (indicated as A, B, C, D, and E in the data file) were performed either continuously within 1 day or over 2 or, rarely, 3 days, mostly from 9:30 to 14:30 and, rarely, until 15:30, when the weather was fine and calm. During each of the hourly samplings, any wild bees discovered on any flower or in flight were captured without particular choice. The captured individuals were preserved separately according to the flower species visited. Care was taken to not stay too long at any particular spot. When one spot attracted numerous bees due to the presence of many flowers in bloom, as many specimens as possible were collected at one time, and then other places were checked, without waiting for further arrivals of other individuals. No samples were collected at the orchard within UC or at places where certain bee species have formed nest aggregations. In this study, we tried to identify as many bee species as possible. The study using the data from 1959 named only 51 species, although 102 species were reported (Sakagami & Fukuda 1973). We confirmed most of the unidentified species from 1979 and 1989 this time. All bee species names followed Tadauchi and Murao (2014).

Citation(s)

@Article{BioTIME_cit397, Study_id = {650}, Citation_id = {397}, Author = {Matsumura, Takeshi and Nakamura, Shoko and Taki, Hisatomo}, Journal = {Ecological Research}, Pages = {713-716}, Title = {Bees and their floral visits in Sapporo in 1979 and 1989}, Volume = {35}, Year = {2020}, Doi = {10.1111/1440-1703.12091}, Language = {English} }