The Spatial Distribution of Flying Insects

Sutton, S. L.

doi:10.1016/b978-0-444-42755-7.50030-4

Cited by 22 publications

(29 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…These results are in agreement with the study of Sutton & Hudson (1980) in Zayre, who showed that the density activity of airborne insects collected with sticky and light traps at two sites was higher in the upper canopy than in the understorey. Similar results were obtained with similar traps in Brunei, Panama, Papua New Guinea, Sulawesi (review in Sutton, 1989), Sarawak (Kato et al, 1995) and Kalimantan (Koike et al, 1998). A study performed with a canopy raft in Cameroon further showed that arthropod densities were three times as high in the upper canopy than in the understorey during the day (Basset et al, 1992).…”

Section: T H E Abundance and Activity Of Arthropods In The Understoresupporting

confidence: 87%

Stratification and diel activity of arthropods in a lowland rainforest in Gabon

Basset

Aberlenc

Barrios

et al. 2001

Biological Journal of the Linnean Society

104

View full text Add to dashboard Cite

The abundance, activity and species richness of arthropods, particularly of insect herbivores, were investigated in the upper canopy and understorey of a lowland rainforest at La Makande, Gabon. In total 14 161 arthropods were collected with beating, flight interception and sticky traps, from six canopy sites, during the day and at night, from midJanuary to mid-March 1999. The effects of stratum were most important, representing between 40 and 70% of the explained variance in arthropod distribution. Site effects represented between 20 and 40% of the variance and emphasized the need for replication of sampling among canopy sites. Time effects (diel activity) explained a much lower percentage of variance (6-9%). The density and abundance of many arthropod taxa and species were significantly higher in the upper canopy than in the understorey. Arthropod activity was also higher during the day than at night. In particular, insect herbivores were 2.5 times more abundant and twice as speciose in the upper canopy than in the understorey, a probable response to the greater and more diverse food resources in the former stratum. Faunal overlap between the upper canopy and understorey was low. The most dissimilar herbivore communities foraged in the understorey at night and the upper canopy during the day. Further, a taxonomic study of a species-rich genus of herbivore collected there (Agdus, Coleoptera Buprestidae) confirmed that the fauna of the upper canopy was different, diverse and very poorly known in comparison to that of the understorey. Herbivore turnover between day and night was rather high in the upper canopy and no strong influx of insect herbivores from lower foliage to the upper canopy was detected at night. This suggests that insect herbivores of the upper canopy may be resident and well adapted to environmental conditions there.

show abstract

Section: T H E Abundance and Activity Of Arthropods In The Understoresupporting

confidence: 87%

Stratification and diel activity of arthropods in a lowland rainforest in Gabon

Basset

Aberlenc

Barrios

et al. 2001

Biological Journal of the Linnean Society

104

View full text Add to dashboard Cite

show abstract

“…Many studies of rainforest insects have reported a higher abundance, activity or diversity of insect herbivores in the upper canopy than in the understorey (e.g. Sutton 1983;Basset et al 1992). However, these studies compared whole forest strata, rather than comparing the specific resources available to insect herbivores in these strata.…”

Section: Introductionmentioning

confidence: 94%

Communities of insect herbivores foraging on saplings versus mature trees of Pourouma bicolor (Cecropiaceae) in Panama

Basset

2001

Oecologia

View full text Add to dashboard Cite

The arthropod fauna of 25 saplings and of three conspecific mature trees of Pourouma bicolor (Cecropiaceae) was surveyed for 12 months in a tropical wet forest in Panama, with particular reference to insect herbivores. A construction crane erected at the study site provided access to tree foliage in the upper canopy. A similar area of foliage (ca. 370 m 2 ) was surveyed from both saplings and trees, but samples obtained from the latter included 3 times as much young foliage as from the former. Arthropods, including herbivores and leafchewing insects with a proven ability to feed on the foliage of P. bicolor were 1.6, 2.5 and 2.9 times as abundant on the foliage of trees as on that of saplings. The species richness of herbivores and proven chewers were 1.5 (n=145 species) and 3.5 (n=21) times higher on trees than on saplings, respectively. Many herbivore species preferred or were restricted to one or other of the host stages. Host stage and young foliage area in the samples explained 52% of the explained variance in the spatial distribution of herbivore species. Pseudo-replication in the two sampling universes, the saplings and trees studied, most likely decreased the magnitude of differences apparent between host stages in this forest. The higher availability of food resources, such as young foliage, in the canopy than in the understorey, perhaps combined with other factors such as resource quality and enemyfree space, may generate complex gradients of abundance and species richness of insect herbivores in wet closed tropical forests.

show abstract

“…The results for the dung beetles alone show a similar pattern (Table 2). Traps at 0 m caught an average of approximately 6 species and 84 individuals per month, whereas traps at 5 m caught 0.5 species and 0.6 individuals, and traps at 10 m only 0.2 species and individuals ( (Sutton 1983), sometimes combined with suction traps (Rees 1983). Results from these techniques found that insect diversity and abundance is considerably greater in the rainforest canopy.…”

Section: Methodsmentioning

confidence: 99%

“…1990). Sutton (1983) has used low intensity light traps suspended in the canopy to investigate patterns of vertical distribution of insects in a variety of rainforests. Basset (1988) describes a version of a malaise trap plus window trap which can be suspended in the canopy to sample arthropods associated with rainforest trees.…”

Section: Introductionmentioning

confidence: 99%

A New Design and some Preliminary Results for a Flight Intercept Trap to Sample Forest Canopy Arthropods

Hill

Cermak

1997

Australian Journal of Entomology

View full text Add to dashboard Cite

With increasing interest in describing the arthropod fauna of rainforest canopies, there is also a need for different trapping techniques which, in combination, will allow a greater proportion of the fauna to be sampled. We describe the design of a flight intercept trap which can be suspended in the rainforest canopy for long periods of time. The flying invertebrate fauna was sampled over 5 months at differing heights in rainforest of northern Queensland using this trap. Invertebrate abundance and higher taxon richness was greatest at the ground level compared to 5 and 10 m above the ground. Similar results were obtained for dung beetles (Coleoptera: Scarabaeidae: Scarabaeinae) which were sorted to species. These results contrast with those of other studies using light traps for which insect diversity and abundance was greatest in the rainforest canopy.

show abstract

The Spatial Distribution of Flying Insects

Cited by 22 publications

References 17 publications

Stratification and diel activity of arthropods in a lowland rainforest in Gabon

Stratification and diel activity of arthropods in a lowland rainforest in Gabon

Communities of insect herbivores foraging on saplings versus mature trees of Pourouma bicolor (Cecropiaceae) in Panama

A New Design and some Preliminary Results for a Flight Intercept Trap to Sample Forest Canopy Arthropods

Contact Info

Product

Resources

About