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Artigos
Publicados em Periódicos
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P110-00 Shape distances,
shape spaces, and the comparison of morphometric methods Monteiro
LR, Bordin B, Reis SF* The major development reported by F.
J. Rohlf and L. F. Marcus was the establishment of a geometric
framework for the description of shape as envisioned by D.
Thompson and formalized in the path-breaking work of Kendall,
Bookstein and Goodall. In this essay the new developments
of morphometrics are reviewed with an emphasis on the simulation
approaches developed to compare morphometric methods by visualizing
the spaces implied by each technique in each of the different
approaches. Trends in Ecology and Evolution 15: 217-220, 2000.
IF = 7.621 *E-mail: sfreis@unicamp.br
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| P111-00
Variation in mandible shape in Thrichomys apereoides (Mammalia:
Rodentia): Geometric analysis of a complex morphological structure
Duarte LC, Monteiro LR, Von Zuben FJ, Reis, SF* The model of
development and evolution of complex morphological structures
conceived by Atchley and Hall in 1991 (Biol. Rev. 66:101-157),
which establishes that changes at the macroscopic, morphogenetic
level can be statistically detected as variation in skeletal
units at distinct scales, was applied in combination with the
formalism of geometric morphometrics to study variation in mandible
shape among populations of the rodent species Thrichomys apereoides.
Morphogenetic mechanisms are assumed to be operating to produce
the observed differentiation in the specific units of the mandible
include mesenchymal condensation differentiation, muscle hypertrophy,
and tooth growth. Perspectives for the application of models
of morphological evolution and geometric morphometrics to morphologically
based systematic biology are considered. Systematic Biology
49: 563-578, 2000. IF = 5.309 *E-mail: sfreis@unicamp.br
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| P112-00
Populations Dynamics and Secondary Production of Laeonereis
aculta (Treadwell, 1923) (Nereididae: Polychaeta) Omena EP,
Amaral ACZ* Population dynamics and productions of Laeonereis
aculta (treadwell, 1923) were investigated on a tidal flat on
the southeast coast of Brazil (Enseada Beach, São Sebastião,
state of São Paulo) between August 1995 and March 1997. Higher
densities (3.5 ind.0,01 m-2) were found during summer months,
mainly during March 1996 and February-March 1997. Growth was
analized using computer based methods of lengh-frequency data
(Elefan), which estimate growth parameters of the Von Bertalanffy
formula (VBGF). Two cohort could be distinguished, one in December
1995 (with an equivalent cohort in December 1996) and another
one in April 1996. The life cycle of L. Acuta may be strongly
influenced by photoperiod, temperature regime and availability
of food. The results of the present work were discussed in comparison
with another sand flat polychaete species in the same area and
other nereidid species. Bulletin of Marine Science 67(1): 421-431,
2000. IF = 0.502 *E-mail: ceamaral@unicamp.br |
| P113-00
Two species of Marphysa Quatrefages, 1865 (Eunicidae, Polychaeta)
from intertidal sandy beaches of the São Sebastião Channel,
State of São Paulo (Brazil) Steiner TM, Amaral ACZ* This paper
reports the presence of two new species of Marphysa from São
Sebastião Channel, State São Paulo, Brazil, M. Sebastiana n.
sp. And M. Formosa n. sp. both collected from intertidal sandy
beaches. These species belong to the group of Marphysa that
has branchiae scattered over an extensive region of the body
and parapodia with both compound falcigerous and spinigerous
chaetae. Comparisons between the two new species and M. digitibranchia
Hoagland, 1920, M. orensanzi Carrera-Parra and Salazar-Vallejo,
1998, Marphysa sp. B (Gardiner, 1975), and Marphysa sp. (Winsnes,
1989) are presented. Bulletin of Marine Science 67(1): 479-489,
2000. IF = 0.502 *E-mail: ceamaral@unicamp.br |
| P114-00
Amphicorina schlenzae, a small sabellid (Polychaeta, Sabellidae)
associated with a stony coral on the coast of São Paulo State,
Brazil Nogueira JMM, Amaral ACZ* Colonies of the stony coral
Mussismilia hispida were collected form island off shore of
São Paulo State, de-calcified, and the polychaetes sorted and
identified. Spionids, syllids, and sabellids were the most common
families, and among the sabellids, a new species of Amphicorina
was found. Amphicorina schlenzae is described and comparisons
with the closest species are given. Bulletin of Marine Science
67(1): 617-623, 2000. IF = 0.502 *E-mail: ceamaral@unicamp.br |
| P115-00
Clustering behavior of the hermit crab Clibanarius antillensis
(Decapoda, Anomura) in a rocky shore at São Sebastião, southeastern
Brazil Turra A, Leite FPP* This study was undertaken in Praia
Grande, São Sebastião, southeastern Brazil. Sampling was done
with the use of transects and 1m2 quadrates. Clibanarius antillensis
was the most abundant hermit crab species and occurred mainly
in air exposed sites. Clustered and scattered individuals presented
similar patterns of shell utilization. The number and size of
clusters were larger in exposed areas than in submerged ones.
All females were clustered and 44,44% were ovigerous. Clustered
males and females and scattered males presented similar sizes.
The pattern of clustering seems to be strongly influenced by
the spatial heterogeneity and by the ability of the crabs to
deal with the risks of desiccation and thermal stress. Revista
Brasileira de Biologia 60(1):39-44, 2000. *E-mail: fosca@unicamp.br |
| P116-00
Avaliação e ações prioritárias para a conservação da Biodiversidade
da zona costeira e marinha. Diagnóstico sobre Praias Arenosas
Amaral ACZ, Amaral EHM, Leite FPP*, Gianuca NM O trabalho realizado
revelou que existem inúmeros sistemas de praias e dunas costeiras
para os quais não se dispõe de qualquer inventario faunístico,
o que torna absolutamente impossível realizar estudos e analises
comparativas sobre a biodiversidade desses sistemas em diferentes
pontos do litoral brasileiro. Por conseqüência, torna-se inviável
qualquer tentativa de demarcação de áreas nessas regiões de
interesse para a preservação da biodiversidade. Não obstante,
a partir dos estudos conhecidos para as regiões sul e sudeste,
para alguns pontos do litoral nordeste e norte e, principalmente,
com base em informações pessoais obtidas, foi possível identificar
e propor vários trechos de praias e dunas considerados de alto
interesse para a preservação da integridade e biodiversidade
dos ecossistemas litorâneos brasileiros. Publicação on-line
Htt// www.bdt.org.br./workshop/costa *E-mail: fosca@unicamp.br |
| P117-00
Structure and proteoglycan composition of specialized regions
of the elastic tendon of the chicken wing Carvalho HF*, Felisbino
SL, Covizi DZ, Della Colleta HHM, Gomes L The elastic tendon
of the avian wing has been described by others as a unique structure
with elastic properties due to the predominance of elastic fibers
in the midsubstance. Analyses of the tendon have shown it to
possess in addition to the major elastic region, a distally
located fibrocartilage and three tendinous regions, anatomically
and biochemically distinct. These results demonstrate that the
elastic tendon is a complex structure with complex regional
structural and compositional adaptations, suited to different
biomechanical roles. Cell and Tissue Research 300 (3): 435-446,
2000. IF= 2.488 *E-mail: hern@unicamp.br |
| P118-00
The osteochondral ligament: a fibrous attachment between bone
and articular cartilage in Rana catesbeiana Felisbino SL, Carvalho
HF* The anuran epiphyseal cartilage shows lateral expansion
that covers the external surface of the bone, besides other
features that distinguish it from the corresponding avian and
mammalian structures. The fibrous structure that attachs the
lateral cartilage to the bone (osteochondral ligament, OCL)
was characterized ultrastructurally and by immunocytochemistry
in Rana catesbeiana. The results presented in this paper showed
that the osteochondral ligament of Rana catesbeiana is a complex
and specialized fibrous attachment which guarantees a strong
and flexible anchorage of the lateral articular cartilage to
the periosteal bone shaft, besides playing a role in bone growth.
Tissue & Cell 32(6): 527-536, 2000. IF = 1.028 *E-mail: hern@unicamp.br |
| P119-00
Collagen Fiber Reorganization in the Rat Ventral Prostate Following
Androgen Deprivation: A Possible Role for the Smooth Muscle
Cells Vilamaior PSL, Felisbino SL, Taboga SR, Carvalho HF* We
characterized the reorganization of the collagen fibers in the
ventral prostate of castrated rats, using histochemical tests
and immunohistochemistry for type I and III collagens plus confocal
microscopy of triple labeled (collagen III, actin and DNA) tissue
sections. We have shown that collagen fibers are composed of
type I and type III collagens and that they are progressively
concentrated around the epithelial structures (ducts and acini)
and become increasingly undulated and folded. Double labeling
of collagen fibers and F-actin has demonstrated that the smooth
muscle cells are closely associated with the collagen fibers.
The results demonstrated a marked reorganization of the collagen
fibers and suggest an active role of the SMC in the reorganization
of the fibrillar components of the stroma. Prostate 45 (3):
253-258, 2000. IF = 3.037 *E-mail: hern@unicamp.br
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