... Marcelo Nogueira Rossi 1 * ; Harold Gordon Fowler 2 1 Depto. ... Generalist predators can be ... more ... Marcelo Nogueira Rossi 1 * ; Harold Gordon Fowler 2 1 Depto. ... Generalist predators can be effective regulatory agents of pest populations because they can adjust predation between a number of prey population, whether these are primary or secondary pests (Luff, 1983). ...
Janzen's (1977) hypothesis that ants do not feed on lowland tropical floral nectar is extend... more Janzen's (1977) hypothesis that ants do not feed on lowland tropical floral nectar is extended to desert flowers, and tested by field observations and experimentation. Based on our results, no evidence was found to suggest that nectar palatability to ants may be reduced by repugnant, indigestible, or toxic chemicals (Janzen 1977). Floral nectar may serve as an important carbohydrate and water source for desert ants.
... HAROLD G. FOWLER, LUCIA E. ALVES iilld ODAIR C. BUENO Instituto & Bioci2ncias, UN... more ... HAROLD G. FOWLER, LUCIA E. ALVES iilld ODAIR C. BUENO Instituto & Bioci2ncias, UNESP, 13500 Rio Claro, Sdo Paulo, Brazil Tel. ... The production of sexual brood is limited to periods of low queen fecundity or low queen numbers (Berndt , 1977; Edwards, 1987). Page 2. ...
Leaf-cutting ants of the generaAcromyrmex andAtta are considered the principal polyphagous pests ... more Leaf-cutting ants of the generaAcromyrmex andAtta are considered the principal polyphagous pests of the Neotropics Although some members of these genera are of economic importance, have a broad geographic distribution, and are extremely good colonizers, others are endemic and closely interact with native ecosystems. Control is generally practiced against any colony, irrespective of its taxonomic status. Indiscriminate control coupled with habitat destruction threatens endemic species with extinction, and, through habitat simplification, favors other pest species. As nests ofAtta are large, having several square meters of nest surface, the endemic taxa can be easily used as environmental indicators for natural ecosystems Likewise, the pest species can be used to detect environmental disturbance As these ants are keystone species and easily identified by nonspecialists, efforts should be made to integrate these into viable conservation programs
Leaf-cutting ants of the genera Acromyrmex and Atta are considered the principal polyphagous pest... more Leaf-cutting ants of the genera Acromyrmex and Atta are considered the principal polyphagous pests of the Neotropics Although some members of these genera are of economic importance, have a broad geographic distribution, and are extremely good colonizers, others are endemic and closely interact with native ecosystems. Control is generally practiced against any colony, irrespective of its taxonomic status. Indiscriminate control coupled with habitat destruction threatens endemic species with extinction, and, through habitat simplification, favors other pest species. As nests of Atta are large, having several square meters of nest surface, the endemic taxa can be easily used as environmental indicators for natural ecosystems Likewise, the pest species can be used to detect environmental disturbance As these ants are keystone species and easily identified by nonspecialists, efforts should be made to integrate these into viable conservation programs
... Marcelo Nogueira Rossi 1 * ; Harold Gordon Fowler 2 1 Depto. ... Generalist predators can be ... more ... Marcelo Nogueira Rossi 1 * ; Harold Gordon Fowler 2 1 Depto. ... Generalist predators can be effective regulatory agents of pest populations because they can adjust predation between a number of prey population, whether these are primary or secondary pests (Luff, 1983). ...
Janzen's (1977) hypothesis that ants do not feed on lowland tropical floral nectar is extend... more Janzen's (1977) hypothesis that ants do not feed on lowland tropical floral nectar is extended to desert flowers, and tested by field observations and experimentation. Based on our results, no evidence was found to suggest that nectar palatability to ants may be reduced by repugnant, indigestible, or toxic chemicals (Janzen 1977). Floral nectar may serve as an important carbohydrate and water source for desert ants.
... HAROLD G. FOWLER, LUCIA E. ALVES iilld ODAIR C. BUENO Instituto & Bioci2ncias, UN... more ... HAROLD G. FOWLER, LUCIA E. ALVES iilld ODAIR C. BUENO Instituto & Bioci2ncias, UNESP, 13500 Rio Claro, Sdo Paulo, Brazil Tel. ... The production of sexual brood is limited to periods of low queen fecundity or low queen numbers (Berndt , 1977; Edwards, 1987). Page 2. ...
Leaf-cutting ants of the generaAcromyrmex andAtta are considered the principal polyphagous pests ... more Leaf-cutting ants of the generaAcromyrmex andAtta are considered the principal polyphagous pests of the Neotropics Although some members of these genera are of economic importance, have a broad geographic distribution, and are extremely good colonizers, others are endemic and closely interact with native ecosystems. Control is generally practiced against any colony, irrespective of its taxonomic status. Indiscriminate control coupled with habitat destruction threatens endemic species with extinction, and, through habitat simplification, favors other pest species. As nests ofAtta are large, having several square meters of nest surface, the endemic taxa can be easily used as environmental indicators for natural ecosystems Likewise, the pest species can be used to detect environmental disturbance As these ants are keystone species and easily identified by nonspecialists, efforts should be made to integrate these into viable conservation programs
Leaf-cutting ants of the genera Acromyrmex and Atta are considered the principal polyphagous pest... more Leaf-cutting ants of the genera Acromyrmex and Atta are considered the principal polyphagous pests of the Neotropics Although some members of these genera are of economic importance, have a broad geographic distribution, and are extremely good colonizers, others are endemic and closely interact with native ecosystems. Control is generally practiced against any colony, irrespective of its taxonomic status. Indiscriminate control coupled with habitat destruction threatens endemic species with extinction, and, through habitat simplification, favors other pest species. As nests of Atta are large, having several square meters of nest surface, the endemic taxa can be easily used as environmental indicators for natural ecosystems Likewise, the pest species can be used to detect environmental disturbance As these ants are keystone species and easily identified by nonspecialists, efforts should be made to integrate these into viable conservation programs
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