Results 91 to 100 of about 31,233 (264)

Task partitioning in insect societies. I. Effect of colony size on queueing delay and colony ergonomic efficiency [PDF]

, 1999
The collection and handling of colony resources such as food, water, and nest construction material is often divided into subtasks in which the material is passed from one worker to another. This is known as task partitioning.
Anderson, C., Ratnieks, F.L.W.
core   +1 more source

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

Nordic 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, Dennis I. Medina, Saban Sequen, Maura L. Quezada   +3 more
wiley   +1 more source

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

Nordic 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, Dennys Victor e Souza Silva, William Matzenauer, Yuri Couceiro, Marccus Alves   +4 more
wiley   +1 more source

Genome analysis of two Pseudonocardia phylotypes associated with Acromyrmex leafcutter ants reveals their biosynthetic potential [PDF]

, 2016
The attine ants of South and Central America are ancient farmers, having evolved a symbiosis with a fungal food crop >50 million years ago. The most evolutionarily derived attines are the Atta and Acromyrmex leafcutter ants, which harvest fresh leaves to
Andersen, Andersen, Barke, Barke, Bentley, Brautaset, Cafaro, Caldera, Camacho, Chin, Clardy, Cotter, Currie, Currie, De Fine Licht, de Man, Doroghazi, Galinski, Gallucci, Gershenzon, Gross, Haeder, Hayashi, Hegemann, Kaltenpoth, Karakas Sen, Karki, Katz, Keatinge-Clay, Kieser, Kim, Kim, Larkin, Lazos, Lee, Li, Marsh, Nygaard, Oh, Piscotta, Poulsen, Poulsen, Richter, Robbel, Sapountzis, Scheuring, Schiøtt, Schoenian, Schultz, Seipke, Seipke, Seipke, Sen, Shigemori, Sit, Valdés-Stauber, Van Arnam, Walker, Walmsley, Weber, Wright   +60 more
core   +1 more source

Fire buffers drought impacts on reproduction in a resprouting Mediterranean shrub

Oikos, EarlyView.
Fire and drought increasingly co‐occur, exposing plants to greater drought stress during post‐fire resprouting. Yet, the effect of this combination of disturbances on plant fitness remains poorly understood. Here, we examine how post‐fire resprouting influences reproductive success under drought conditions in the Mediterranean shrub Anthyllis ...
Jaime Saiz‐ Blanco, Conchita Alonso, Juli G. Pausas   +2 more
wiley   +1 more source

Population Dynamics of Acromyrmex crassispinus (Forel) (Hymenoptera: Formicidae) and Attacks on Pinus taeda Linnaeus (Pinaceae) plantations

Sociobiology, 2015
This work aimed to study the population dynamics of Acromyrmex crassispinus (Forel) in Pinus taeda L. plantations, evaluating the density and spatial distribution of nests over time, inferring about the period of the first nuptial flight of A ...
Mariane Aparecida Nickele, Wilson Reis Filho   +1 more
doaj   +1 more source

Prospective of indigenous African wild food plants in alleviation of the severe iron deficiency anaemia in Sub‐Saharan Africa

PLANTS, PEOPLE, PLANET, EarlyView.
Iron deficiency anaemia remains a major public health challenge in Sub‐Saharan Africa, where population growth, displacement and limited resources heighten nutritional insecurity. We compiled a list of indigenous African underutilized wild food plants and examined their potential for addressing micronutrient deficiencies.
Eltayb Abdellatef, Yohannes Gedamu Gebre, Petra Bauer   +2 more
wiley   +1 more source

Locating, collecting, and maintaining colonies of fungus-farming ants (Hymenoptera: Myrmicinae: Attini)

Sociobiology, 2015
The purpose of this paper is to describe methods developed by generations of attinologists for locating, collecting, and maintaining in the laboratory live colonies of fungus-farming ants. Our goal is to accelerate the study of the many very poorly known
Jeffrey Sosa-Calvo, Ana Jesovnik, Eugenia Okonski, Ted R Schultz   +3 more
doaj   +1 more source

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

PLANTS, 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, Kristoffer Hylander, Thiago S. de Melo, Ayco J. M. Tack   +3 more
wiley   +1 more source

The continuing significance of chiral agrochemicals

Pest Management Science, Volume 81, Issue 4, Page 1697-1716, April 2025.
In the time frame 2018–2023, around 43% of the 35 chiral agrochemicals introduced to the market (herbicides, fungicides, insecticides, acaricides, and nematicides) contain one or more stereogenic centers in the molecule, and almost 69% of them have been marketed as racemic mixtures of enantiomers or stereoisomers.
Peter Jeschke
wiley   +1 more source