XX SIMPOSIO DE MIRMECOLOGIA
I ENCUENTRO DE MIRMECOLOGISTAS DE LAS AMERICAS
Petr6polis, RJ, Brasil
16 a 20 de outubro de 2011
ANAIS
Organiza~ao:
UFRRJ
UNIVERSIDADE FEDERAL RURAL
DO RIO DEJANEIRO
Realiza~ao:
UFRRJ
UNIVERSIDADE FEDERAL RURAL
DO RIO DEJANEIRO
INST I TUTO T EOl0G I CO
FRJ\NCISCJ\NO
FACULDADE DE TEOLOGJA
PET RDPOLIS· RI
Semana Nacional
de Ciencia e Tecnologia
17 a 23 de outubro de 2011
Mudanc;as climaticas, desastres
naturais e prevenc;ao de riscos
Apoio e Patrocinio:
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C A P E S
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Progr . d~ Pos - Gradua~oo ~m
Ciineias Ambi~ntais ~ Flor~stais
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Biologia Animal -
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ii
XX SIMPOSIO DE MIRMECOLOGIA
I ENCUENTRO DE LOS MIRMECOLOGISTAS DE LAS AMERICAS
Petr6polis, RJ, Brasil, 16 a 20 de outubro de 2011.
Universidade Federal Rural do Rio de Janeiro
Reitor: Ricardo Motta Miranda
Vice-Reitora: Ana Maria Dantas Soares
Pr6-Reitora de Pesquisa e P6s-Gradua~ao: Aurea Echeverria
Comissao Organizadora
Presidente: Jarbas Mar~al de Queiroz (UFRRJ, Brasil)
Secretaria Geral do Evento: Aline Pintor de Azeredo (UFRRJ, Brasil)
Antonio Jose Mayhe-Nunes (UFRRJ, Brasil)
Alejandro Farji-Brener (Universidad del Comahue, Argentina)
Comissao Cientifica
Antonio Jose Mayhe-Nunes (UFRRJ, Brasil)
Alejandro Farji-Brener (Universidad del Comahue, Argentina)
Cecilia Diaz Castelazo (INECOL, Mexico)
Fabio Souto de Almeida (UFRRJ, Brasil)
Inara Leal (UFPE, Brasil)
Jarbas Mar~al de Queiroz (UFRRJ, Brasil)
Mauricio Bacci Jr (UNESP-Rio Claro, Brasil)
Omar Bailez (UENF, Brasil)
Patricia Folgarait (Universidad Nacional de Quilmes, Argentina)
Stacy Philpott (University of Toledo, USA)
iii
MESAS-REDONDAS
Segunda-feira, 17/10/11
MESA 1 - Ecologia de formigas em agroecossistemas. Convidados: Stacy Philpott
(Universidade de Toledo, EUA), Heraldo Vasconcelos (UFU, Brasil), Elizabeth Jimenez
Carmona (Universidad del Valle, Colombia) & lracenir Santos (UNIFAL, Brasil).
MESA 2 - Jardins secretos: habitos de nidifica~ao de forrnigas cultivadoras de fungos.
Convidados: Ted Schultz (lnstituto Smithsonian, EUA), Martin Bollazzi (Universidade da
Republica, Uruguai) & Christiana Klingenberg (SMNK, Alemanha).
MESA 3 - Seg., 17I 10/11, 16: 15h, Sal a 1. Biologia de Poneromorfas. Convidados: Jacques C. H.
Delabie (CEPLAC, Brasil), Rogerio Silvestre (UFGD, Brasil), Rodrigo Feitosa (USP, Brasil),
Nicolas Chaline (Universidade Paris XIII, Fran~a) & William F. Antonialli-Junior (UEMS,
Brasil).
MESA 4- Gen6rnica e metagen6rnica rnicrobiana em formigas. Convidados: Mauricio Bacci Jr
(UNESP, Brasil), Jacobus Boomsma (Universidade de Copenhagen, Dinamarca) & Urich
Mueller (Universidade do Texas, EUA).
Ter~a-feira
18/10/11
MESA 5- Comportamento de forrnigas. Convidados: Alejandro Farji-Brener (Universidade do
Comahue, Argentina), Flavio Roces (Universidade de Wurzburg, A1emanha), Kleber del Claro
(UFU, Brasil) & Sabrina Amador-Vargas (Universidade do Texas, EUA).
MESA 6 - Eco1ogia de formigas do dossel. Convidados: Servio P. Ribeiro (UFOP, Brasil),
Stephen Yanoviak (Universidade de Arkansas, EUA), Jerome Orivel (UMR, Guiana Francesa),
Maurice Leponce (IRSNB/KBIN, Belgica).
MESA 7 - Forrnigas em areas urbanas. Convidados: Odair Bueno (UNESP, Brasil), Angela
Maria Arcila Cardona (Corpoica-EE Caribia, Colombia) & Roxana Josens (Universidade de
Buenos Aires, Argentina).
MESA 8 - A contribui~ao de Borgmeier, Kempf e Gon~alves. Convidados: Antonio Jose
Mayhe-Nunes (UFRRJ, Brasil), Frei Ludovico Garmus (ITF, Brasil), Jorge Diniz (UFO, Brasil).
Quarta-feira 19/10/11
MESA 9 - Manejo de formigas em reflorestamentos. Convidados: Jose C. Zanuncio (UFV,
Brasil), Luis Forti (UNESP, Brasil) & Ronald Zanetti (UFAL, Brasil)
MESA 10 - Biodiversidade de forrnigas em ecossistemas brasileiros: padr6es e processes.
Convidados: Tathiana Sobrinho (UFV, Brasil), Frederico S. Neves (UFMG, Brasil) & Renata
B.F. Campos (UEMG, Brasil).
v
How to assess rapidly the spatial distribution of numerically dominant ants in the canopy
Maurice Leponce 1 & Alain Dejean 2
(1) Biological Evaluation Section, Royal Belgian Institute of Natural Sciences, Belgium.
[email protected]
(2) CNRS, Écologie des Forêts de Guyane (UMR-CNRS 8172), Campus Agronomique, 97379
KOUROU cedex, France & Université de Toulouse, UPS, 118 route de Narbonne, 31062
Toulouse, France. [email protected]
Numerically dominant arboreal-nesting ants are known to structure the distribution of other ant
species and of other arthropods, such as hemiptera providing them with energy-rich resources that
sustain their large colonies. The diversity and distribution of arboreal-nesting ants are difficult to
study in tropical forests due to tree heights reaching up to 45m. Commonly used techniques (canopy
fogging, pitfall trapping, baiting) involve climbing trees which is time-consuming. The aim of the
current study was to evaluate the efficacy of an alternative protocol based on baits spread every 5m
along a rope. One end of the rope is tied around the trunk and, with the help of a sling-shot, the other
is slung over a branch in the canopy, forming a loop that enables the baits to be easily brought back
down for inspection (see figure). So, no climbing is required. Baits were composed of a mixture of
proteins, lipids and carbohydrates, and were left for 24 hours before being collected. The protocol
was tested in three very different regions: a dry forest in Mozambique (n= 55 trees sampled; tree
height <20m), two Amazonian forests in French Guiana (n= 15 & n=47; h<45m) and a lowland
tropical rainforest of Papua New Guinea (n= 30, h< 35m). Arboreal-nesting ants were also collected
by hand from branch-clippings and by beating the vegetation. The protocol allowed the presence of
dominant arboreal-nesting ants (mainly Dolichoderus, Azteca and Crematogaster in Amazonia,
Crematogaster in Mozambique, Oecophylla and Crematogaster in Papua New Guinea) to be easily
detected. A stratified ant distribution at the baits was observed on tall rainforest trees. On-site
confrontations between dominant ants colonizing baits allowed us to identify a supercolony of
Crematogaster colonizing three-fourths of the trees along the 500m Mozambique transect. In Papua
New Guinea trees were also overdominated by Crematogaster (Cr. polita) which apparently also
tends to form supercolonies. The protocol offers a tool for rapidly investigating spatial and temporal
patterns in dominant ant distribution. Considering the structuring effect of these ants such a protocol
has potential for monitoring functional processes in tropical forest ecosystems.
Acknowledgments: Support for this study was provided through the Programme Amazonie II of the
French Centre National de la Recherche Scientifique (Project 2ID), the Programme Convergence
2007-2013 (Région Guyane) from the European Community (Project DEGA), the Programme “our
Planet Reviewed” of Pro-Natura International (Mozambique 2009 expedition) and the “Fonds
Léopold III pour l’Exploration et la Conservation de la Nature” (Nouragues 2006 expedition, French
Guiana).
49
Figure: A: A sling shot is used to install a rope over a top branch in the canopy. Baits are spread
every 5m to detect species vertical stratification. Ants dig inside the bait and remain on it even when
it is brought back down for inspection. Because the rope forms a loop, baits can be easily put back
(eg during a monitoring program). Aggression tests between canopy ants collected at baits allow to
delineate neighbor colonies. This method mainly collect numerically dominant ants living either in
carton nests (B: Crematogaster polita in Papua New Guinea) or inside branches (C: Crematogaster
near wellmani in Mozambique). Images: ML, layout: I. Bachy, RBINS.
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