Results 31 to 40 of about 6,846,802 (336)
Frontiers in Plant Science, 2023 Changes in tree species composition are one of the key aspects of forest succession. In recent decades, significant changes have occurred in the tree species composition of subtropical forests in China, with a decrease in coniferous trees and an increase
Biyong Ji +9 more
doaj +1 more source
Animals, 2018 Broad-scale abundance estimates of the southern hairy-nosed wombat population use a proxy measure based on counting the number of active burrows, which is multiplied by an index of ‘wombats/active burrow’.
Michael J. Swinbourne +2 more
doaj +1 more source
Avian Conservation and Ecology, 2023 River regulation by dams on the Missouri River has modified riparian forest successional patterns, with decreases in early and increases in later seral stages and higher occurrence of invasive tree species, including Russian olive ( Elaeagnus ...
Christopher L. Merkord +4 more
doaj +1 more source
SPECIES-AREA RELATIONSHIP FOR POWER-LAW SPECIES ABUNDANCE DISTRIBUTION [PDF]
International Journal of Biomathematics, 2012 We studied the mathematical relations between species abundance distributions (SADs) and species-area relationships (SARs) and found that a power-law SAR can be generally derived from a power-law SAD without a special assumption such as the "canonical hypothesis".
Irie, Haruyuki, Tokita, Kei
openaire +2 more sources
Nature Conservation Research: Заповедная наука, 2020 Long-term conservation schemes usually concern the rarest species, extremely threatened. Investigating Red Data Book species is inescapable for determining their threatened category and optimal measures for the protection.
Nigar Mursal +2 more
doaj +1 more source
bioRxiv, 2018 Little consensus has emerged regarding how proximate and ultimate drivers such as productivity, disturbance, and temperature may affect species richness and other aspects of biodiversity.
D. McGlinn +9 more
semanticscholar +1 more source
Aquatic Hemiptera of Wisconsin [PDF]
, 2017 About 59,000 aquatic Hemiptera were collected in Wisconsin, most of them in the last 15 years. These include three species of Belostomatidae, 48 species of Corixidae, one species of Naucoridae, four species of Nepidae, nine species of Notonectidae, and ...
Hilsenhoff, William L
core +3 more sources
Koedoe: African Protected Area Conservation and Science, 2023 Estuarine waterbodies typically support diverse and abundant waterbird communities. However, global environmental degradation as a result of anthropogenic activities is leading to species level changes in biodiversity, with top predators such as ...
Ian A. Russell
doaj +1 more source
How differences in plant abundance measures produce different species‐abundance distributions [PDF]
Methods in Ecology and Evolution, 2012 Summary1. Species‐abundance distributions (SADs) are a convenient and common method for describing ecological communities. Despite their long history and the cornucopia of theoretical models, which have been suggested to describe them, no agreement has been reached as to which models are best.2.
Anderson B. J. +2 more
openaire +3 more sources
Weed-Species Abundance and Diversity Indices in Relation to Tillage Systems and Fertilization
Frontiers in Environmental Science, 2018 Weeds pose a major threat to world agriculture by reducing detrimentally crop yield and quality. However, at the same time, weeds are major interacting components of the agroecosystems.
I. Travlos +3 more
semanticscholar +1 more source