| DatasetID | 52 |
|---|---|
| Name | Nesting biology of the Solitary Digger Bee Habropoda depressa (Hymenoptera: Anthophoridae) in urban and island environments. |
| Description | -Abstract: The nesting biology of Habropoda depressa Fowler is described for urban (University of California at Berkeley) and island (Santa Cruz Island) populations in the state of California (USA). This protandrous species is common in the California foothills where adults are active from late February through early June. Larvae do not spin cocoons and pupate to overwinter as adults by November. A portion of the population appears to delay development since prepupae were found in nest excavations early in the nesting season. Brood cells were parasitized mostly by two dipterans: bombyliid flies and an anthomyiid species, Leucophora fusca Huckett (found only on SCI). Unlike its congeners which nest in sandy soils, H. depressa nests in hard-packed soils, including clay. During the nesting season, females spend evenings outside burrows, roosting on nearby vegetation before returning to their nest the following morning. At the urban locale, female bees subsist almost entirely upon exotic and horticultural plant varieties while the majority of host plant collection records at Santa Cruz Island were from native species. On average, nests made by bees at UCB were significantly shorter than those constructed at SCI, although the average number of cells per nest was greater. These foraging and nest architectural differences may reflect either variation among populations or adaptations to urbanization effects of the last century. -Paper includes a table showing: Plant species visited by Habropoda depressa males and females at an urban site (UC Berke ley = UCB) and three non-urban sites (Hastings Natural History Reservation = HNR, Mount Diablo State Park =MDP, Santa Cruz Island = SCI, San Joaquin Experimental Range = SJR). |
| Physical Location | |
| Publisher/Owner | J.F. Barthell |
| Publication Date | |
| Permissions | Undetermined |
| Source | |
| Contact | |
| Type | Publication |
| Subject | Ecology |
| Geo. Extent | Hastings Reserve |
| URL | http://www.jstor.org/stable/pdfplus/25085826.pdf?acceptTC=true |
| NRS Registry? | unknown |
| Format | |
| Timespan Start | 1998 |
| Timespan End | 1998 |
| Total Items | 1 |
| Databased Items | 0 (as of 2012-06-25) |
| Comments | |
| Entered By | Jessica Rothery |
| Last Updated |