Ecological Archives E094-124-A4

Markus Franzén, Sven G. Nilsson. 2013. High population variability and source–sink dynamics in a solitary bee species. Ecology 94:1400–1408. http://dx.doi.org/10.1890/11-2260.1

Appendix D. Patch characteristics.

Table D1. Characteristics of patches occupied by Andrena humilis in any year between 2003 and 2011. Patches are sorted in ascending order according to their distance from the assumed source population, i.e., the persistent population.

Patch

Distance from the persistent population (m)

Max. number of bee nests/individuals in one year

Nests observed

Total number of observed bee nests/individuals all years

Number of years the bee was present

Number of colonizations

Number of extinctions

Pollen availability

Habitat type and management

Råshult

0

1230

X

4099

9

0

0

High

Meadow

Djäknabygd

499

16

X

41

7

2

2

High

Meadow

Stenbrohults prästgård

1091

5

X

8

3

3

2

Low

Grazed pasture

Såganäs

1192

6

 

9

3

2

1

Medium

Meadow

Skålshult

1291

1

 

1

1

1

1

Low

Road verge

Borshult

1374

3

 

4

2

2

1

Medium

Grazed pasture/Road verge

Stockanäs

2070

3

 

4

3

3

2

Medium

Meadow/Road verge

Diö

2024

1

 

1

1

1

1

Low

Road verge

Taxås

2350

2

X

7

2

1

1

Medium

Meadow

Sällhult

2720

1

 

2

2

2

1

Low

Road verge

Tångarne E

2815

1

 

3

2

2

1

Low

Grazed pasture

Höö

4844

1

 

2

2

0

1

High

Meadow


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