Results 61 to 70 of about 5,239 (254)

Occurrence of polygyny in Acromyrmex subterraneus molestans Santschi 1925 (Hymenoptera: Formicidae) [PDF]

open access: yesCiência Rural, 2004
Polygyny denotes the coexistence of two or more mated and fertile queens in the colony. A colony of Acromyrmex subterraneus molestans Santschi containing 14 queens was collected on campus of the Universidade Federal de Viçosa, Brazil, aiming to verify if
Danival José de Souza   +3 more
doaj   +1 more source

Meyna grisea (King & Gamble) Robyns and Meyna peltata Robyns (Rubiaceae: Vanguerieae) – a new record of two ethnobotanically significant fruit trees from Manipur, India

open access: yesNordic Journal of Botany, EarlyView.
Meyna grisea and M. peltata, two new records from Imphal Valley, Manipur, India, characterised by a capitate stigma with 4–5 divergent, spreading lobes on a globose base, and a prominent peltate stigma, respectively, are described and illustrated here. Photographs, key to the species, along with their coordinates and diagnostic characters in comparison
Pallavi B. Dhal   +3 more
wiley   +1 more source

Quantificação das perdas no desenvolvimento de Pinus taeda após o ataque de formigas cortadeiras

open access: yesCiência Florestal, 2008
In this study, the main purpose was to quantify the diameter, height and productivity index losses in initial development in Pinus taeda seedlings in stands in Argentine, after leaf cutting ants attack. The treatments were: T1 = control without attack;
Edison Bisognin Cantarelli   +3 more
doaj  

Enforcing environmental law in the Amazon

open access: yesPeople and Nature, EarlyView.
Abstract This article identifies the underlying obstacles to enforcement of laws against environmental crimes such as illegal logging, mining and ranching. With four departments (provinces) from Colombia as case studies, it assesses enforcement of the country's main environmental law, Law 2111, which is one of Latin America's strongest. The article has
Mark Ungar, Juan Corredor‐Garcia
wiley   +1 more source

Solvent‐Free Fabrication of Eco‐Friendly pH‐Sensitive Smart Films From Poly(Butylene Succinate) and Red Cabbage Anthocyanin for Tracking of Chicken Breast Spoilage

open access: yesPolymer Engineering &Science, EarlyView.
Smart label design. ABSTRACT The growing interest to ensure food safety requires the development of smart indicator systems that are capable of real‐time tracking of spoilage, particularly for perishable foods. Therefore, the purpose of this work is to fabricate eco‐friendly, industrially viable pH‐sensitive smart films via solvent‐free melt ...
Bedriye Ucpinar
wiley   +1 more source

Parasitism, sexual dimorphism and effect of host size on Apocephalus attophilus offspring, a parasitoid of the leaf-cutting ant Atta bisphaerica.

open access: yesPLoS ONE, 2018
Atta bisphaerica (Forel) is a leaf-cutting ant that specializes on grass and causes productivity losses in sugar cane fields and pastures. Three phorid species, Apocephalus attophilus (Borgmeier), Myrmosicarius grandicornis (Borgmeier) and ...
Cliver Fernandes Farder-Gomes   +5 more
doaj   +1 more source

Phorid Flies Parasitizing Leaf-Cutting Ants: Their Occurrence, Parasitism Rates, Biology and the First Account of Multiparasitism

open access: yesSociobiology, 2016
The leaf-cutting ants Atta sexdens (Linnaeus) and Atta laevigata (Smith) were parasitized by the following phorid flies: Apocephalus attophilus Borgmeier, Apocephalus vicosae Disney, Myrmosicarius grandicornis Borgmeier and species of Eibesfeldtphora ...
Marcos Antonio Lima Bragança   +4 more
doaj   +1 more source

The Fungus Gardens of the Leaf-Cutting Ants

open access: yesJournal of the New York Botanical Garden, 1943
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +2 more sources

Open‐land‐derived agroforestry and effects of abandonment of management of the main crop on ecosystem services and woody plant diversity

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Tropical forests are rapidly declining. One promising strategy to reverse the loss of tropical forest is the establishment of agroforestry on open land. We combined interviews with biodiversity surveys to learn general lessons from success and nonsuccess stories of the establishment of open‐land‐derived coffee agroforests in one of the world's ...
Lucas M. Fonzaghi   +3 more
wiley   +1 more source

Putting the waste out: a proposed mechanism for transmission of the mycoparasite Escovopsis between leafcutter ant colonies [PDF]

open access: yesRoyal Society Open Science, 2017
The attine ant system is a remarkable example of symbiosis. An antagonistic partner within this system is the fungal parasite Escovopsis, a genus specific to the fungal gardens of the Attini.
Juliana O. Augustin   +4 more
doaj   +1 more source

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