| 000 | 027200000a22004690004500 | ||
|---|---|---|---|
| 904 | _aBCO | ||
| 905 | _aC | ||
| 908 | _aJ | ||
| 909 | _aAS | ||
| 914 | _aFORES | ||
| 914 | _aRIBRE | ||
| 914 | _aSILVI | ||
| 082 | 0 | 4 | _a35120 |
| 100 | 1 |
_9132649 _aYOUNG, A.M. |
|
| 260 | _c1980 | ||
| 520 | _aThe distribution of adult cicadas in various tree species was studied in Costa Rica. These observations indicate that tropical cicadas, mostly males, often congregate in certain tree species in various kinds of secondary forest habitats. Aggregated male cicadas exhibit intense chorusing and females fly into chorusing aggretations, presumably for mating. Trees used for aggregations are also cicada feeding sites. The conspicuous absence of oviposition evidence or nymphal skins suggest that these trees are used primarily for intensive male chorusing which assembles females for mating. Tendency to congregate in particular trees is related to the spatial position of the trees and their exposure to direct sunlight. Highly fragmented forest patches in some regions (central highlands, lowland Guanacaste) function as islands for cicadas to complete their life cycles and mating, whereas the abundant secondary forest habitats in other regions (northeastern lowlands) are being invaded by a few species which use secondary forest trees for completion of life cycles and mating. The apparent absence of dense aggregation of adult cicadas within climax tropical forests, even though nymphal skins are found here, is probably related to the very patchy distribution of individuals of each tree species and perhaps other factors (i.e. shading) affecting the attractiveness of trees for congregating cicadas | ||
| 650 | 1 | 4 |
_9138293 _aBOSQUE SECUNDARIO |
| 650 | 1 | 4 |
_9146081 _aENTOMOLOGIA |
| 650 | 1 | 4 |
_9149480 _aGOETHALSIA MEIANTHA |
| 650 | 1 | 4 |
_9159841 _aPOUROUMA ASPERA |
| 650 | 1 | 4 |
_9157934 _aPENTACLETHRA MACROLOBA |
| 650 | 1 | 4 |
_9168227 _aVERNONIA PATENS |
| 650 | 1 | 4 |
_9149387 _aGLIRICIDIA SEPIUM |
| 650 | 1 | 4 |
_9169089 _aZYGIA LATIFOLIA |
| 650 | 1 | 4 |
_9166020 _aTAMARINDUS INDICA |
| 650 | 1 | 4 |
_92064 _aCOSTA RICA |
| 691 |
_9337698 _aSECONDARY FORESTS |
||
| 691 |
_9146087 _aENTOMOLOGY |
||
| 691 |
_9149387 _aGLIRICIDIA SEPIUM |
||
| 691 |
_9166020 _aTAMARINDUS INDICA |
||
| 691 |
_aCOSTA RICA _92064 |
||
| 692 | _aFORET SECONDAIRE | ||
| 692 | _aENTOMOLOGIE | ||
| 692 | _aGLIRICIDIA SEPIUM | ||
| 692 | _aTAMARINDUS INDICA | ||
| 692 | _aCOSTA RICA | ||
| 773 | 0 |
_tCanadian Journal of Zoology (Canada) _d1980 _gv. 58(5) p. 711-722 |
|
| 040 |
_aCR-TuBCO _cCR-TuBCO _bEs |
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| 245 | 1 | 0 | _aObservations on the aggregation of adult cicadas (Homoptera: Cicadidae) in tropical forests |
| 942 | _cANA | ||
| 003 | CR-TuBCO | ||
| 999 |
_c55923 _d55923 |
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