scholarly journals Effects of Relative Host Plant Abundance, Density and Inter-Patch Distance on Associational Resistance to a Coastal Gall-Making Midge,Asphondylia borrichiae(Diptera: Cecidomyiidae)

2013 ◽  
Vol 96 (3) ◽  
pp. 1143-1148 ◽  
Author(s):  
Keith Stokes ◽  
Peter Stiling
Keyword(s):  
Host Plant ◽  
Associational Resistance ◽  
Plant Abundance

Host-Plant Specialization Mediates the Influence of Plant Abundance on Host Use by Flower Head-Feeding Insects

2015 ◽  
Vol 45 (1) ◽  
pp. 171-177 ◽  
Author(s):  
Paola A. F. Nobre ◽  
Leonardo L. Bergamini ◽  
Thomas M. Lewinsohn ◽  
Leonardo R. Jorge ◽  
Mário Almeida-Neto
Keyword(s):  
Host Plant ◽  
Flower Head ◽  
Host Use ◽  
Plant Abundance ◽  
Host Plant Specialization

scholarly journals Some ecological factors influencing the breeding success of the Brenton Blue butterfly, Orachrysops niobe (Trimen) (Lepidoptera: Lycaenidae)

Koedoe ◽  
2002 ◽  
Vol 45 (2) ◽  
Author(s):  
D.A. Edge
Keyword(s):  
Host Plant ◽  
Breeding Season ◽  
Breeding Success ◽  
Ecological Factors ◽  
Future Research ◽  
Plant Abundance ◽  
Factors Influencing ◽  
Nectar Sources ◽  
Management Techniques ◽  
Blue Butterfly

The Brenton Blue butterfly, Orachrysops niobe (Trimen, 1862) (Lepidoptera:Lycaenidae), is endemic to the southern Cape and is currently listed as Endangered. This study looks at some of the key ecological factors influencing the breeding success of the species—host plant abundance and condition, nectar sources, climate/ microclimate, and vegetation management techniques. The adult butterfly population was monitored over an entire breeding season; host plants were identified and individually monitored; and egg counts were done. This enabled the effects of a number of different management techniques to be evaluated (burning, cutting, physical removal of invasive elements, and combinations thereof). A fivefold increase in the population of O. niobe was observed over the breeding season. This increase was positively correlated to a similar increase in host plant abundance in the areas where cutting and physical removal of invasive elements was practiced. Burning, by contrast, appeared to have a negative impact on host plant and butterfly abundance over the same period. Impacts of other factors such as climate, nectar sources and the natural strength of the second brood are discussed. A hypothesis, of megaherbivore activity as the principal historical disturbance mechanism promoting locally favourable conditions for O. niobe to establish and maintain colonies, is proposed. Recommendations for reserve management and future research are made.

The collapse of marsh fritillary ( Euphydryas aurinia ) populations associated with declining host plant abundance

2017 ◽  
Vol 211 ◽  
pp. 117-124 ◽  
Author(s):  
Ane Kirstine Brunbjerg ◽  
Toke Thomas Høye ◽  
Anne Eskildsen ◽  
Bettina Nygaard ◽  
Christian Frølund Damgaard ◽  
...  
Keyword(s):  
Host Plant ◽  
Plant Abundance ◽  
Euphydryas Aurinia ◽  
Marsh Fritillary

THE RED TURNIP BEETLE, ENTOMOSCELIS AMERICANA (COLEOPTERA: CHRYSOMELIDAE): DISTRIBUTION, TEMPERATURE ADAPTATIONS, AND ZOOGEOGRAPHY

1989 ◽  
Vol 121 (4-5) ◽  
pp. 315-324 ◽  
Author(s):  
G.H. Gerber
Keyword(s):  
North America ◽  
Host Plant ◽  
Plant Abundance ◽  
Land Bridge ◽  
Western Cordillera ◽  
Temperature Adaptations ◽  
Central United States ◽  
Southward Extension ◽  
Physiographic Regions ◽  
Nearctic Region

AbstractMost of the range of the red turnip beetle, Entomoscelis americana Brown, lies within the Western Cordillera and Interior Plains physiographic regions of North America between latitudes 45°N and 68°N. Entomoscelis americana is associated mainly with three types of vegetation: forests, forest–grasslands, and grasslands. Temperature adaptations in the egg, larval, pupal, and adult stages that permit E. americana to occupy its present range are outlined. Host plant abundance may be the main factor preventing eastward extension of its range. Climate and host plant abundance together appear to limit E. americana to low altitude locations north of 60°N latitude. Eight of the temperature adaptations of the egg and adult stages together seem to limit southward extension of the range. Entomoscelis Chevr. appears to have a Holarctic distribution, with 11 species in the Palearctic region and one (E. americana) in the Nearctic region. The stock giving rise to E. americana may have migrated to North America during the Pleistocene when the Bering land bridge was in existence. Entomoscelis americana likely spent the Wisconsinan glacial period south of the ice in the Western Cordillera and (or) in central United States.

Mango: A new host plant for the lycaeinid Anthene lycaenina lycaenina (R. Felder, 1868)

ENTOMON ◽  
2020 ◽  
Vol 45 (3) ◽  
pp. 237-238
Author(s):  
J. Nayanathara ◽  
R. Narayana
Keyword(s):  
Host Plant ◽  
New Host ◽  
First Time

Anthene lycaenina lycaenina (R. Felder, 1868) is reported on mango for the first time.

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