Results 81 to 90 of about 54,083 (243)

Behavioural effects of juvenile hormone and their influence on division of labour in leaf-cutting ant societies [PDF]

open access: yes, 2016
Division of labour in social insects represents a major evolutionary transition, but the physiological mechanisms that regulate this are still little understood.
Hughes, William O H, Norman, Victoria C
core   +2 more sources

Chromosome Mapping of Ribosomal DNA Clusters in Four Leaf-cutting Ant Species of the Genus Acromyrmex, with Description of a Triploid Individual in A. laticeps

open access: yesSociobiology
The increase of cytogenetic data in the leaf-cutting genus Acromyrmex has shown interesting contributions to the evolutionary and taxonomic approaches, including the creation of a new genus and the description of chromosomal patterns allowing ...
Luísa Antonia Campos Barros   +4 more
doaj   +1 more source

Preparation and Evaluation of Biodegradable Film From Zinc Oxide Nanoparticles‐Carboxymethyl Cellulose‐Gelatin Containing Salvia viridis Anthocyanin

open access: yesFood Chemistry International, EarlyView.
Different percentages of ANT affected the physical and mechanical characteristics of the film. The results indicated that this produced film is a useful tool for monitoring the freshness of food products.. ABSTRACT In recent years, growing environmental concerns have promoted the use of natural and biodegradable polymers in food packaging applications.
Ebrahim Biabani Aghdam   +3 more
wiley   +1 more source

Asphalted parking lots are environmental filters for multiple propagule dispersal and pollination strategies

open access: yesNordic Journal of Botany, EarlyView.
Understanding community assembly for wild species in anthropogenic settings has become increasingly important as biodiversity and ecosystem services are threatened by development pressures. Urban hardscape habitats such as parking lots are widespread, extreme, terrestrial anthropogenic environments that influence plant community assembly by way of ...
Lauren J. Frazee   +3 more
wiley   +1 more source

Collective action in ant control: [PDF]

open access: yes
Leaf-cutting ants (Atta. cephalotes) represents a serious problem to farmers in many parts of Latin America and accounts of ants eating up a whole cassava plot or destroying one or more fruit trees overnight are not uncommon.
de la Cruz, Ana Milena   +3 more
core  

Rediscovery of Passiflora clypeophylla (subgenus Decaloba): a highly threatened and narrow endemic species found within a karstic canyon in Guatemala

open access: yesNordic Journal of Botany, EarlyView.
Passiflora clypeophylla, an endemic species to the Guatemalan karstic forests last seen in 1889 and deemed extinct, was rediscovered in the Department of Alta Verapaz, east of Cobán. The species was known only from a single specimen hailed from the type locality, Rubel Cruz, where it has been found again. An additional location has been identified in a
J.R. Kuethe   +3 more
wiley   +1 more source

Management of droughty site: Typic Quartzipsamments, ecological considerations [PDF]

open access: yes, 1999
Pine plantations on Typic Quartzipsamments in East Texas are difficult to establish. Forest management options following clearcutting are limited. A 12 year regeneration study of the growth and survival of loblolly, Pinus faeda, L. shortleaf, P. echinata
Cahal, R. R.   +3 more
core   +1 more source

Taxonomy and diversity of Marcgraviaceae, north of the São Francisco river, northeast Brazil

open access: yesNordic Journal of Botany, EarlyView.
This study provides a comprehensive assessment of Marcgraviaceae species diversity north of the São Francisco river in northeastern Brazil, analyzing species richness and distribution patterns across 384 000 km² of phytogeographic domains. Through field collections, herbarium studies (both physical and digital), and detailed morphological analyses, we ...
Thales Carvalho   +4 more
wiley   +1 more source

Atividade inseticida de Eugenia uniflora L. e Melia azedarach L. sobre Atta laevigata Smith

open access: yesFloresta e Ambiente
As formigas cortadeiras estão entre os principais insetos pragas das florestas plantadas brasileiras, causando danos econômicos desde a implantação até a sua colheita.
Paulo Henrique Jung   +5 more
doaj   +1 more source

New Light on the Systematics of Fungi Associated with Attine Ant Gardens and the Description ofᅠEscovopsis kreiseliiᅠsp. nov. [PDF]

open access: yes, 2015
Since the formal description of fungi in the genus Escovopsis in 1990, only a few studies have focused on the systematics of this group. For more than two decades, only two Escovopsis species were described; however, in 2013, three additional Escovopsis ...
Meirelles, Lucas A.   +3 more
core   +1 more source

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