Results 51 to 60 of about 6,846,802 (336)

The Impact of Prescribed Fire on Moth Assemblages in the Boston Mountains and Ozark Highlands, in Arkansas [PDF]

, 2019
In addition to the impacts of prescribed fires on forest vegetation, this ecosystem process also has dramatic impacts on associated insect assemblages. For herbivorous, terrestrial insects, fire predictably results in a cycle of initial insect population
Blanco, Cristina M, Garrie, Jorista, Guerra, Erin E   +2 more
core   +3 more sources

Wild Edible Plant Species in the ‘King’s Lagoon’ Coastal Wetland: Survey, Collection, Mapping and Ecological Characterization

Horticulturae
Wild edible plants, botanically defined as phytoalimurgical species, have historically been a useful source of food to cope with recurrent famines and poor farming conditions.
Anna Rita Bernadette Cammerino, Lorenzo Piacquadio, Michela Ingaramo, Maurizio Gioiosa, Massimo Monteleone   +4 more
doaj   +1 more source

Random forest and spatial cross-validation performance in predicting species abundance distributions

Environmental Systems Research
Random forests (RF) have been widely used to predict spatial variables. Several studies have shown that spatial cross-validation (CV) methods consistently cause RF to yield larger prediction errors compared to standard CV methods. This study examined the
Ciza Arsène Mushagalusa, A. B. Fandohan, Romain Glèlè Kakaï   +2 more
semanticscholar   +1 more source

Northeastern Atlantic benthic foraminifera during the last 45,000 years: Changes in productivity seen from the bottom up [PDF]

, 1995
We studied benthic foraminifera from the last 45 kyr in the >63 mu m size fraction in Biogeochemical Ocean Flux Studies (BOFS) cores 5K (50 degrees 41.3'N, 21 degrees 51.9'W, depth 3547 m) and 14K (58 degrees 37.2'N, 19 degrees 26.2'W, depth 1756 m), at ...
Booth, L, Maslin, M, Shackleton, NJ, Thomas, E   +3 more
core   +1 more source

Abundance‐mediated species interactions

Ecology
AbstractSpecies interactions shape biodiversity patterns, community assemblage, and the dynamics of wildlife populations. Ecological theory posits that the strength of interspecific interactions is fundamentally underpinned by the population sizes of the involved species. Nonetheless, prevalent approaches for modeling species interactions predominantly
Joshua P. Twining, Ben C. Augustine, J. Andrew Royle, Angela K. Fuller   +3 more
openaire   +2 more sources

Evaluating Functional Diversity: Missing Trait Data and the Importance of Species Abundance Structure and Data Transformation

PLoS ONE, 2016
Functional diversity (FD) is an important component of biodiversity that quantifies the difference in functional traits between organisms. However, FD studies are often limited by the availability of trait data and FD indices are sensitive to data gaps ...
M. Májeková, Taavi Paal, Nichola S. Plowman, M. Bryndová, Liis Kasari, A. Norberg, M. Weiss, T. R. Bishop, S. Luke, K. Sam, Yoann Le Bagousse‐Pinguet, J. Lepš, L. Götzenberger, Francesco de Bello   +13 more
semanticscholar   +1 more source

Tree Species Abundance Predictions in a Tropical Agricultural Landscape with a Supervised Classification Model and Imbalanced Data

Remote Sensing, 2016
Mapping species through classification of imaging spectroscopy data is facilitating research to understand tree species distributions at increasingly greater spatial scales.
Sarah J. Graves, G. Asner, R. Martin, C. Anderson, M. Colgan, Leila Kalantari, Stephanie A. Bohlman   +6 more
semanticscholar   +1 more source

Abundance of Coccinellids and Their Potential Prey in Field-Crop and Grass Habitats in Eastern South Dakota [PDF]

, 2018
A rich fauna of coccinellids occurs in eastern South Dakota, but the abundance of some species has declined in association with the establishment of an exotic lady beetle, Coccinella septempunctata (L.) (Coleoptera: Coccinellidae), in the mid-1980s.
Ellsbury, Michael M, Hesler, Louis S, Kieckhefer, Robert W   +2 more
core   +2 more sources

Mammalian species abundance across a gradient of tropical land-use intensity: A hierarchical multi-species modelling approach

, 2017
Recent work in the tropics has advanced our understanding of the local impacts of land-use change on species richness. However, we still have a limited ability to make predictions about species abundances, especially in heterogeneous landscapes.
O. Wearn, J. M. Rowcliffe, C. Carbone, M. Pfeifer, H. Bernard, R. Ewers   +5 more
semanticscholar   +1 more source

Can DNA-Based Ecosystem Assessments Quantify Species Abundance? Testing Primer Bias and Biomass—Sequence Relationships with an Innovative Metabarcoding Protocol

PLoS ONE, 2015
Metabarcoding is an emerging genetic tool to rapidly assess biodiversity in ecosystems. It involves high-throughput sequencing of a standard gene from an environmental sample and comparison to a reference database.
Vasco Elbrecht, F. Leese
semanticscholar   +1 more source