Results 41 to 50 of about 4,075,567 (351)

The unpredictably eruptive dynamics of spruce budworm populations in eastern Canada

Population Ecology, EarlyView.
We examine historical population data for spruce budworm from several locations through the period 1930–1997, and use density‐dependent recruitment curves to test whether the pattern of population growth over time is more consistent with Royama's (1984; Ecological Monographs 54:429–462) linear R(t) model of harmonic oscillation at Green River New ...
Barry J. Cooke, Jacques Régnière
wiley   +1 more source

PortFIR – An integrated data provider as support for the food policy-makers [PDF]

, 2019
Introduction: Portuguese Food Composition Table (TCA) is managed by the National Institute of Health Doutor Ricardo Jorge (INSA) and is publicly available on the Portuguese Food Information Resource (PortFIR) platform.
Brazão, Roberto, Dias, Maria da Graça, Fernandes, Paulo, Lopes, Andreia, Oliveira, Luísa   +4 more
core  

Resourcefulness, Desperation, Shame, Gratitude and Powerlessness : Common Themes Emerging from A Study of Food Bank Use in Northeast Scotland [PDF]

, 2015
Acknowledgements This study received funding support from the Scottish Government’s Rural and Environment Science and Analytical Services (RESAS), Theme 7 ‘Healthy Safe Diets’ Research Programmed.
Flora Douglas, Janet Kyle, Jennifer Sapko, Kirsty Kiezebrink, null null   +4 more
core   +3 more sources

Network topology drives population temporal variability in experimental habitat networks

Population Ecology, EarlyView.
Habitat patches connected by dispersal pathways form habitat networks. We explored how network topology affects population outcomes in laboratory experiments using a model species (Daphnia carinata). Central habitat nodes in complex lattice networks exhibited lower temporal variability in population sizes, suggesting they support more stable ...
Yiwen Xu, J. Angus Webb, William D. Bovill, Elise L. King   +3 more
wiley   +1 more source

Geographic variation in walking activity in the red flour beetle Tribolium castaneum

Population Ecology, EarlyView.
This study examined whether there is geographic variation in field populations, focusing on the moving activity in the red flour beetle Tribolium castaneum. Results showed significant differences in moving activity among field populations but no correlation with latitude or meteorological factors.
Kentarou Matsumura
wiley   +1 more source

Mycotoxin and metallic element concentrations in peanut products sold in Ugandan markets

Cogent Food & Agriculture, 2017
The increasing prevalence of cancer among Ugandans has aroused consumer concerns about food-borne carcinogens. This study sought to compare mycotoxin and metallic element concentrations in processed peanuts sold in selected markets in Kampala, Uganda to ...
Sylvia Angubua Baluka, Dwayne Schrunk, Paula Imerman, John N. Kateregga, Elisiane Camana, Chong Wang, Wilson Kiiza Rumbeiha   +6 more
doaj   +1 more source

Between Droughts and Floods: The Seasonal Response of Freshwater Snails in Artificial Reservoirs in the Brazilian Semiarid Region

Population Ecology, EarlyView.
We investigate the seasonal dynamics of two freshwater snails, Biomphalaria straminea and Melanoides tuberculata, in artificial reservoirs of the Brazilian semiarid region. Despite regulated hydrology, B. straminea exhibited strong seasonal fluctuations associated with dry periods, while M. tuberculata maintained stable populations throughout the year,
Lucas Henrique Sousa da Silva, João Hemerson de Sousa, Adriana Josefa da Rocha, Manuella Feitosa Leal, Lucas Ariel de Sousa Aguiar, Tamaris Gimenez Pinheiro, Edson Lourenço da Silva   +6 more
wiley   +1 more source

An Adaptive Management Model for Brown Bears in Hokkaido: Based on Total Population and the Number of Nuisance Bears

Population Ecology, EarlyView.
Bear management changes management actions according to the horizontal axis of the population size and the vertical axis of the number of nuisance bears. Aiming for the target population size of Ntar, Actions I and II protect the bears, and Action IV reduces the population.
Hiroyuki Matsuda, Akira Maki, Tsutomu Mano, Hifumi Tsuruga, Hino Takafumi, Shinichi Horino   +5 more
wiley   +1 more source

From bench to bountiful harvests : a road map for the next decade of Arabidopsis research [PDF]

, 2012
In the face of an increasing world population and climate instability, the demands for food and fuel will continue to rise. Plant science will be crucial to help meet these exponentially increasing requirements for food and fuel supplies.
Bastow, Ruth, Beynon, Jim, Estelle, Mark, Lavagi, Irene, Weckwerth, Wolfram   +4 more
core   +2 more sources

Effects of Colored Light on Growth and Nutritional Composition of Tilapia, and Biofloc as a Food Source

Applied Sciences, 2020
Light stimulation and biofloc technology can be combined to improve the efficiency and sustainability of tilapia production. A 73-day pilot experiment was conducted to investigate the effect of colored light on growth rates and nutritional composition of
Daniela Lopez-Betancur, Ivan Moreno, Carlos Guerrero-Mendez, Domingo Gómez-Meléndez, Manuel de J. Macias P., Carlos Olvera-Olvera   +5 more
doaj   +1 more source