Results 31 to 40 of about 1,343,038 (348)

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

Evaluating uncertainty: the impact of the sampling and assessment design on statistical inference in the context of ILSA

Large-scale Assessments in Education
This paper informs users of data collected in international large-scale assessments (ILSA), by presenting argumentsunderlining the importance of considering two design features employed in these studies.
Diego Cortes, Dirk Hastedt, Sabine Meinck   +2 more
doaj   +1 more source

Metacognition, achievement goals, study strategies and academic achievement: pathways to achievement [PDF]

Metacognition and Learning, 2008
The purpose of this research was to develop and test a model of effective selfregulatedlearning. Based on effort expenditure we discerned effective self-regulators andless effective self-regulators. The model comprised achievement goals (mastery, performance-approach and -avoidance goals), metacognition (metacognitive knowledge, regulation and ...
Vrugt, A., Oort, F.J.
openaire   +3 more sources

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

Population 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, Andrea Costa, Sebastiano Salvidio   +2 more
wiley   +1 more source

Crafting networks to achieve, or not achieve, chaotic states [PDF]

Physical Review E, 2015
The influence of networks topology on collective properties of dynamical systems defined upon it is studied in the thermodynamic limit. A network model construction scheme is proposed where the number of links, the average eccentricity and the clustering coefficient are controlled.
de Nigris, Sarah, Leoncini, Xavier
openaire   +4 more sources

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

Quantitative discrimination of the influences of climate change and human activity on rocky desertification based on a novel feature space model

Open Geosciences, 2022
Under the stress of the global change, rocky desertification has become a serious environmental problem in the Karst Mountain area. At present, few remote sensing monitoring research works on rocky desertification based on feature space model have been ...
Wen Ye, Guo Bing, Zang Wenqian, Lai Jibao, Li Ran   +4 more
doaj   +1 more source

The Development of Academic Achievement and Cognitive Abilities: A Bidirectional Perspective

Child Development Perspectives, 2020
Developing academic skills and cognitive abilities is critical for children’s development. In this article, we review evidence from recent research on the bidirectional relations between academic achievement and cognitive abilities.
Peng Peng, R. Kievit
semanticscholar   +1 more source

Speciation Through the Lens of Population Dynamics: A Theoretical Primer on How Small and Large Populations Diverge

Population Ecology, EarlyView.
Population size and dynamics fundamentally shape speciation by influencing genetic drift, founder events, and adaptive potential. Small populations may speciate rapidly due to stronger drift, whereas large populations harbor more genetic diversity, which can alter divergence trajectories. We highlight theoretical models that incorporate population size
Ryo Yamaguchi, Hidaka Kubo, Tokuya Ogawa, Hayate Omura   +3 more
wiley   +1 more source

Secondary school students’ attitudes of tolerance towards minorities

Large-scale Assessments in Education
Continued migration flows are inevitable, and research into favorable conditions for educating students in pluralistic societies is timely. This study attempts to address the operationalization of favorable conditions when educating children in diverse ...
Clara Beyer, Falk Brese
doaj   +1 more source