Results 31 to 40 of about 1,566,030 (299)
How differences in plant abundance measures produce different species‐abundance distributions [PDF]
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
Species richness, abundance and phenology of fungal fruit bodies over 21 years in a Swiss forest plot [PDF]
Fungal fruit bodies were surveyed on a plot area of 1500 m2 from 1975¿99 (excluding 1980¿83) in the fungal reserve La Chaneaz in western Switzerland. Fruit bodies were identified and counted on a weekly basis.
Ayer, F., Egli, S., Straatsma, G.
core +3 more sources
Butterflies of the high altitude Atacama Desert: habitat use and conservation
The butterfly fauna of the high-altitude desert of Northern Chile, though depauperate, shows high endemism, is poorly known and is of considerable conservation concern.
Emma eDespland
doaj +1 more source
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
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Northeastern Atlantic benthic foraminifera during the last 45,000 years: Changes in productivity seen from the bottom up [PDF]
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 +3 more
core +1 more source
Fragmentation and insects: theory and application to calcareous grasslands [PDF]
Habitat loss poses the greatest threat to the long-term survival of species on earth and has three major components: straightforward destruction of habitat, increasing fragmentation and deterioration of habitat quality. Habitat fragmentation, i.e.
Baguette M., Polus E., Vandewoestijne S.
doaj
Road Zone Effects in Small-Mammal Communities
Our study focused on the putative effects of roads on small-mammal communities in a high desert region of southern Utah. Specifically, we tested whether or not roads create adjacent zones characterized by lower small- mammal densities, abundance, and ...
John A. Bissonette, Silvia A. Rosa
doaj +1 more source
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 +4 more
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One of the few laws in ecology is that communities consist of few common and many rare taxa. Functional traits may help to identify the underlying mechanisms of this community pattern, since they correlate with different niche dimensions.
Kolja Bergholz +4 more
doaj +1 more source
Gradual climatic changes caused by mountains’ altitudinal variation promote alterations in the structure of ecological communities. Environmental changes are also expected according to the slope’s position in relation to the sea.
Thiago Vieira Costa +2 more
doaj +1 more source

