Joe Perry results 2
· Newest (Page 1/1, per page 25)
Search Results
Modelling the dynamic spatio‐temporal response of predators to transient prey patches in the fieldNARA Subscribed
The spatio‐temporal dynamics of two aphid species ( Metopolophium dirhodum and Sitobion avenae ) and a generalist predator ( Pterostichus melanarius ) were observed in a field‐scale study using a grid of 256 sampling locations with a 12‐m spacing. Using Spatial Analysis by Distance Indices we demonstrate that populations show ephemeral spatial pattern at the field scale. We observed a positive, lagged beetle response to this a...
The positive interspecific abundance–occupancy relationship is one of the most general patterns in ecology. Positive intra specific relationships should also exist within species over time, and so a species should occupy more sites in years when it is more abundant. However, positive intraspecific relationships are not as ubiquitous as their interspecific counterparts. It has been hypothesized that low levels of temporal varia...
Previous1Next