Results 21 to 30 of about 253,500 (286)

The unpredictably eruptive dynamics of spruce budworm populations in eastern Canada

open access: yesPopulation 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

Protocol for making forecasts exogenous in the International Futures model

open access: yesSTAR Protocols
Summary: Understanding future dynamics and trends in human and natural development is foundational for creating appropriate policy strategies to address planetary and development challenges. Here, we present a protocol for adding exogenous series for key
José Solórzano   +8 more
doaj   +1 more source

The challenges of dynamic vulnerability and how to assess it

open access: yesiScience, 2022
Summary: Recent disasters have demonstrated the challenges faced by society as a result of the increasing complexity of disaster risk. In this perspective article, we discuss the complex interactions between hazards and vulnerability and suggest ...
Marleen C. de Ruiter, Anne F. van Loon
doaj   +1 more source

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

open access: yesPopulation 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   +6 more
wiley   +1 more source

Basin dependencies of tropical cyclone genesis environment and possible future changes revealed by machine learning methods

open access: yesiScience
Summary: Tropical cyclone (TC) genesis mechanisms remain debated, complicating predictions of climate change impacts. This study uses principal-component analysis (PCA), confidence ellipses, and correlation circles to analyze TC genesis environments ...
QiFeng Qian   +4 more
doaj   +1 more source

Why I study Earth sciences

open access: yesAnnals of Geophysics, 2012
I present here the reasons why I chose to pursue a University degree in Earth sciences. Although this topic might at first seem unrelated to geoethics, it is somehow connected to it.
Edoardo Borgomeo
doaj   +1 more source

Moving in the Dark: Enlightening the Spatial Population Ecology of European Cave Salamanders

open access: yesPopulation Ecology, EarlyView.
We assessed individual interactions, movement ecology and activity patterns of a subterranean population of Speleomantes strinatii, applying spatial capture–recapture modeling to a photographic dataset of 104 individuals. ABSTRACT Space use and movement are fundamental aspects of organisms' ecology, mirroring individual fitness, behavior, and life ...
Giacomo Rosa   +2 more
wiley   +1 more source

Protocol for assessing neighborhood physical disorder using the YOLOv8 deep learning model

open access: yesSTAR Protocols
Summary: Neighborhood physical disorder (PD), characterized by disruptions and irregularities in spatial elements, is associated with negative economic, social, and public health outcomes. Here, we present a protocol to quantitatively assess PD utilizing
Yan Li, Yue Ma, Ying Long
doaj   +1 more source

A decade since the International Year of Planet Earth - Earth Sciences for society

open access: yesJournal of the Geological Survey of Brazil, 2020
Developed between 2007 and 2008, the International Year of Planet Earth (IYPE) was proclaimed by United Nations Organization with the objective to divulge the importance of the Earth Sciences for society and to alert for the main problems mankind will ...
Carlos Oití Berbert
doaj   +1 more source

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