Administrativo, Biblioteca, Departamentos, IB, Informática,  Museu Graduação, Pós, Extensão Projetos, Laboratórios Serviços, Empresa Junior, Atletica, CAB, Links
Instituto de Biologia Unicamp







ABSTRACTA (3) 2000

Artigos Publicados em Periódicos
P010-00 Insect mortality in Spathodea campanulata Beauv. (Bignoniaceae) flowers Trigo JR*, Santos WF Revista Brasileira de Biologia 60: 537-538, 2000. *E-mail:
P011-00 The chemistry of antipredator defense by secondary compounds in Neotropical aposematic Lepidoptera: facts, perspectives and caveats Trigo JR* Journal of the Brazilian Chemistry Society 11:000-000, 2000. IF = 0.436 *E-mail:
P012-00 Variation of diastereoisomeric pyrrolizidine alkaloids as a taxonomic tool in Pleurothallis (Orchidaceae) Borba EL, Trigo JR*, Semir J Biochemical Systematics and Ecology 29: 47-55, 2000. IF = 0.758 *E-mail:
P013-00 Comportamento reprodutrivo de Brotogeris versicolorus chiriri (Aves, Psittacidae) em São Paulo, Brasil Paranhos SJ, Machado LOM* O comportamento reprodutivo de B. versicolorus chiriri foi estudado de 1990 a 1993 em duas áreas do Estado de São Paulo. Locais de nidificação, duração do período reprodutivo, tamanho da postura, e as relações entre macho e fêmea em diferentes estágios da reprodução foram considerados. Todos os ninhos observados estavam localizados em cajuzeiros arborícolas. Os ovos eram postos a cada dois dias. A média para o tamanho da postura foi de 5,42 + 1,13 (n = 7 ninhos). A incubação durou 23 dias e os filhotes nasceram em dias diferentes. Os filhotes deixaram os ninhos com 39 a 40 dias. O ninho é usado pelo casal como dormitório na fase de construção, assim como até o ultimo filhote deixar o ninho. Iheringia, série Zoologia 88: 61-66, 2000. *E-mail:
P014-00 Daily activity schedule, gregariousness, and defensive behaviour in the Neotropical harvestmen Goniosoma longipes (Opiliones: Gonyleptidae) Machado G, Raimundo RLG, Oliveira PS* We provide an account of the biology of the harvestman Goniosoma longipes. Solitary and aggregated individuals rest on cave walls. After sunset many individuals leave the cave to forage, and return before dawn. Aggregations of G. longipes contain ca. 34 individuals. Upon manipulation the harvestmen release a repugnatory liquid, and aggregated individuals collectively discharge this secretion toward the aggressor before fleeing. We suggest that gregarious behaviour in G. longipes is related with the choice of more suitable microconditions in the cave habitat and/or with group chemical defence. Journal of Natural History 34: 587-596, 2000. IF = 0.597 *E-mail:
P015-00 Conditional outcomes in a neotropical treehopper-ant association: temporal and species-specific variation in ant protection and homopteran fecundity Del-Claro K, Oliveira PS* We studied the association between the honeydew-producing membracid Guayaquila xiphias and ants. Our experiments revealed that ants reduce the abundance of G. xiphias' natural enemies on the host plant. Ant-tending not only increased homopteran survival, but also conferred a direct reproductive benefit to G. xiphias females, which may abandon the first brood to ants and lay an additional clutch. The degree of protection by tending ants varies yearly, and ant species differ in their effects on treehopper survival. This is the first study to simultaneously demonstrate conditionality in ant-derived benefits related to protection and fecundity in membracids. Oecologia 124: 156-165, 2000. IF = 2.159 *E-mail:
P016-00 Respostas comparativas de Bracon vulgaris Ashmead (Hym., Braconidae) a diferentes macerados de plantas de algodão, em dois modos de exposição Carvalho SL, Fernandes WD, Patel PN, Habib MEM* Revista Agric. 75 (1): 41 - 53, 2000. *E-mail:
P017-00 Diet of buffy-tufted-ear marmosets (Callithrix aurita) in a forest fragment in Southeastern Brazil Martins MM, Setz EZF* Nós investigamos a dieta e sua variação sazonal de outubro 1994 a setembro 1995 em um grupo de quatro saguis, Callithrix aurita, em um fragmento florestal (17 ha) no sul de Minas Gerais. A dieta (n =499 registros) compreendeu goma (50%) e frutos (11%; 27 sp., 16 fam.), e animais (38%: lagartas 33%, esperanças 5% e cochonilhas 4%). O consumo de frutos diminuiu no inverno, quando a ingestão de goma aumentou. O amplo (82% das gomas) e constante consumo de goma da Acacia paniculata (Mimosoideae, Leguminosae) sugere que esta espécie seja importante na persistência dos saguis em fragmentos florestais. International Journal of Primatology 21 (3): 467-476, 2000. IF = 1.098 *E-mail:
P018-00 Collagen-affecting drugs impair regeneration of teleost tail fins Bechara IJ, Joazeiro PP, Marí-Beffa M, Becerra J, Montes GS* Regenerating tail fins were studied in two species of teleosts, Tilapia rendalli and Cyprinus carpio, treated with Indomethacin, Aspirin, Dexamethasone, Penicillamine, and Beta-aminoproprionitrile, drugs known to disrupt collagen metabolism in mammals. Collagen was studied under the light microscope by the Picrosirius-polarization method and also under the electron microscope. In general, these drugs disturbed the deposition and organization of collagen fibrils leading to abnormally thin or practically absent lepidotrichia and actinotrichia, and also to disorganized fibrous connective tissue. The resulting disorganization of the collagenous scaffolding of the regenerating dermoskeleton was probably responsible for a secondary effect on blastema distalization and on the general fin ray patterning that were also observed. The observations suggest that the stromal histoarchitecture of the regenerate plays a vital role in fin regeneration and indicate that these drugs may be useful in studying the extracellular matrix-cell interactions at the cellular and molecular level. Present findings also provide a basis for developing different biological models by using teleost fin regeneration. Journal of Submicroscopic Cytology and Pathology 32(2): 273-280, 2000. IF = 0.701 *E-mail/Phone: (011)852-2188.
P019-00 The effect of cyclophosphamide on brainstem remyelination following local ethidium bromide injection in Wistar rats Bondan EF, Lallo MA, Sinhorini IL, Pereira LAV*, Graça DL Long-term cyclophosphamide (CY) treatment was used in rats subjected to ethidium bromide demyelinating model to investigate ultrastructurally the drug effects on remyelination and on central nervous system tissue repair. Brainstem sections were collected and processed for light and transmission electron microscopy studies. The rats treated with CY showed greater amounts of myelin-derived membranes than non-treated rats, suggesting a delay in the macrophage activity of removing myelin debris. Oligodendrocyte remyelinating activity showed an incipient and restricted pattern, with clear predominance of naked axons. Rare lymphocytes were also found, as well decresead neovascularization. Journal of Submicroscopic Cytology and Pathology 32: , 2000. IF = 0.701 * E-mail:

Diretoria do Instituto de Biologia

Fone: (19) 37886358 / 37886361
Caixa Postal 6109 - CEP 13.084-971 - Campinas - SP