Results 61 to 70 of about 1,006 (167)

Impacts of land use change on diaspore‐dispersing ant assemblages in southwestern Amazonia

Insect Conservation and Diversity, EarlyView.
Land use changes shift ant assemblages, more intensive land uses are dominated by generalist and open habitat specialist species engaging in group foraging. The diaspore removal rates cannot differ, but the quality of dispersal was lower in disturbed habitats.
Dhâmyla Bruna de Souza Dutra, Francisco Matheus da Silva Sales, Luane Fontenele, Adriana de Lima Alves, Daniely da Frota Almeida, Fabiana Ferreira de Oliveira, Fernando Augusto Schmidt   +6 more
wiley   +1 more source

Ants (Hymenoptera: Formicidae) of Santa Fe province, Argentina [PDF]

, 2008
El presente trabajo pretende aportar una lista faunística actualizada de las subfamilias, tribus, géneros y especies de hormigas de la provincia de Santa Fe, Argentina.
Cuezzo, Fabiana del Carmen, Vittar, Fernando   +1 more
core  

The role of habitat simplification and seasonality in shaping interactions between ants, plants and herbivores in a neotropical savanna

Ecological Entomology, Volume 51, Issue 2, Page 381-394, April 2026.
We evaluated how chronic anthropogenic disturbances (CAD) and seasonal variation influence interactions between ants and plants with extrafloral nectaries (EFN's), with emphasis on the responses of ants, herbivores, and plants. Ant and herbivore diversity remained stable across seasons in the preserved cerrado, whereas the pasture had higher ant ...
Edvânia Costa de Oliveira Sá, Flávio Camarota, Poliane Neres Morais, Érica Vanessa Durães de Freitas, Frederico Neves, Tatianne Gizelle Marques Silva, Walter Santos de Araújo   +6 more
wiley   +1 more source

Discrimination of the Social Parasite Ectatomma parasiticum by Its Host Sibling Species (E. tuberculatum)

Psyche: A Journal of Entomology, 2013
Among social parasites, workerless inquilines entirely depend on their host for survival and reproduction. They are usually close phylogenetic relatives of their host, which raises important questions about their evolutionary history and mechanisms of ...
Renée Fénéron, Chantal Poteaux, Marie Boilève, Jorge Valenzuela, Fabrice Savarit   +4 more
doaj   +1 more source

Ants (Hymenoptera: Formicidae) of the Argentine Mesopotamia [PDF]

, 2008
Este estudio describe la diversidad de hormigas de la Mesopotamia Argentina y su distribución geográfica. El grupo de las hormigas se destaca por su alta biomasa, diversidad, dominancia numérica e importancia ecológica.
Vittar, Fernando
core  

Juvenile hormone downregulates vitellogenin production in Ectatomma tuberculatum (Hymenoptera: Formicidae) sterile workers [PDF]

, 2015
In the ant Ectatomma tuberculatum (Olivier 1792), workers have active ovaries and lay trophic eggs that are eaten by the queen and larvae. Vitellogenins are the main proteins found in the eggs of insects and are the source of nutrients for the embryo in ...
Azevedo, Dihego Oliveira, Martinez, Luis Carlos, Paula, Sérgio Oliveira de, Serrão, José Eduardo, Zanuncio, José Cola   +4 more
core   +2 more sources

Description of the immature and adult stages of Ectatomma vizottoi (Formicidae: Ectatomminae)

, 2022
We estimated the number of larval instars of the ant Ectatomma vizottoi (Ectatomminae), by measuring the maximum width of the head capsules of 208 larvae and the morphology of the immature stages (eggs, larvae and pupae) and adults. There are three larval instars during the post-embryonic development. The reproductive eggs are dark brown.
Vieira, Alexsandro S., Antonialli-Junior, William F., Fernandes, Wedson D., Tofolo, Viviane C., Giannotti, Edilberto   +4 more
openaire   +1 more source

The leaf litter ant fauna of an Atlantic Forest area in the Cantareira State Park – São Paulo, Brazil [PDF]

Biotemas, 2005
The present work surveys the leaf litter ant fauna of an Atlantic Forest area in Cantareira State Park – SP, Brazil as a complement to the project “Richness and diversity of Hymenoptera and Isoptera along a latitudinal gradient in the Atlantic Forest ...
Andre Soliva Ribeiro, Rodrigo dos Santos Machado Feitosa   +1 more
doaj  

Formigas de solo no Parque Ecológico Municipal Prof. João David Ferreira Lima, Córrego Grande, Florianópolis: um caso de estudo em uma área verde em ambiente urbano [PDF]

, 2017
TCC(graduação) - Universidade Federal de Santa Catarina. Centro de Ciências Biológicas. Biologia.O avanço das áreas urbanas sobre os ambientes naturais representa um sério risco para a diversidade e riqueza de espécies que se encontram nas áreas afetadas.
Marcineiro, Frederico Rottgers
core  

Social interactions between an inquiline ant, Ectatomma parasiticum, and its host, Ectatomma tuberculatum (Formicidae, Ectatomminae)

Journal of Ethology, 2008
Inquilines, workerless social parasites, frequently show advanced adaptations to their parasitic life style that indicate a long co-evolutionary history with their host. Ectatomma parasiticum, the first inquiline described in the poneromorph group, usurps established colonies of E. tuberculatum and produces only sexuals.
R. R. Hora, R. Blatrix, D. Fresneau, R. Fénéron   +3 more
openaire   +2 more sources