Seasonal Pattern In Population Dynamics And Host Plant Use Of Non‐Swarming Ruspolia Differens Serville (Orthoptera: Tettigoniidae)

Simple item page
dc.contributor.authorOpoke, Robert
dc.contributor.authorMalinga, Geoffrey M.
dc.contributor.authorRutaro, Karlmax
dc.contributor.authorNyeko, Philip
dc.contributor.authorRoininen, Heikki
dc.contributor.authorValtonen, Anu
dc.date.accessioned2022-02-03T20:00:37Z
dc.date.available2022-02-03T20:00:37Z
dc.date.issued2019
dc.description.abstractThe edible Ruspolia differens (Serville) (Orthoptera: Tettigoniidae) is an important source of food in East Africa, but the seasonality of its population dynamics and host plant use are not fully understood. We studied seasonal patterns in the population density and relative frequency of developmental stages, sexes, colour morphs and host plants of the non-swarming R. differens at two study sites in central Uganda over 15 months. Linear mixed models were used to study how precipitation and Enhanced Vegetation Index (EVI) predict population density and relative frequency of developmental stages, sexes, colour morphs and host plants. The results showed that all developmental stages of non-swarming R. differens were found in the field throughout the year. The population densities of R. differens were high in wet seasons and low in dry seasons and were best predicted by the EVI of the previous month. The sex ratio of the non-swarming R. differens populations was female biased. The proportion of males and green colour morphs increased during and after the rainy season. The use of host plants fluctuated seasonally so that during the greener seasons individuals used the more preferred host Panicum maximum more frequently. Overall, our work indicates that R. differens has a seasonal dynamic so that vegetation greenness can be used to forecast non-swarming R. differens population densities. Our results also suggest that source populations for swarming individuals might have a local origin. This is important for the management of habitats for reproduction and conservation of viable populations of R. differens in East Africa.en_US
dc.identifier.citationOpoke, R., Malinga, G. M., Rutaro, K., Nyeko, P., Roininen, H., & Valtonen, A. (2019). Seasonal pattern in population dynamics and host plant use of non‐swarming Ruspolia differens Serville (Orthoptera: Tettigoniidae). Journal of Applied Entomology, 143(4), 371-379.https://doi.org/10.1111/jen.12600en_US
dc.identifier.urihttps://nru.uncst.go.ug/xmlui/handle/123456789/1853
dc.language.isoenen_US
dc.publisherJournal of Applied Entomologyen_US
dc.subjectedible insects, population dynamics, rainfall, the edible grasshopper, Uganda, vegetation greennessen_US
dc.titleSeasonal Pattern In Population Dynamics And Host Plant Use Of Non‐Swarming Ruspolia Differens Serville (Orthoptera: Tettigoniidae)en_US
dc.typeArticleen_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Seasonal Pattern In Population Dynamics And Host Plant Use.pdf
Size:
788.16 KB
Format:
Adobe Portable Document Format
Description:
Seasonal Pattern In Population Dynamics And Host Plant Use Of Non‐Swarming Ruspolia Differens Serville (Orthoptera: Tettigoniidae)
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Agricultural and Veterinary Sciences