An organism's role within an ecosystem depends on how it obtains its food.Plants and animals obtain their food in very different ways,so they have very different roles in an ecosystem.The way in which an organism obtains food also affects its interactions with other organisms in the ecosystem...
Here, we study the-containing archaeal MAGs from several hot springs, which reveal further expansion in the diversity of archaeal organisms performing methane/alkane metabolism. Significantly, an MAG basal to organisms from the phylumthat containsgenes, but not those for ammonia oxidation or aerobic ...
Parasites occur, albeit cryptically, in almost all ecosystems, yet they are usually neglected in studies on populations and communties of organisms. Parasites can have pronounced or subtle effects on hosts affecting host behavior, growth, fecundity, and mortality. Furthermore, parasites may regulate ...
A prey is an animal that other animals hunt for food.Examples of predator-prey relationships:PredatorPrey bear fish lion zebra fox rabbitWhat is a food chain?A food chain shows how organisms are related to each other by the food that they eat in the ecosystem. It also shows the energy ...
There are also many organisms that use trees and hermatypic corals as a habitat. Many interactions are strongly asymmetric17–22 (one interaction strength in a pairwise interaction is strong and another is weak) and, therefore, are almost unilateral instead of reciprocal. Species interactions can ...
Gene expression profiling is a powerful approach in functional genomics to uncover the complexity of cells and tissues at the transcriptional level. Next generation sequencing (NGS) based technologies are revolutionizing the field and paved the way to profile the gene expression of many organisms. In...
Primary consumers are groups of organisms in the ecosystem that are categorized in the second trophic level of the food chain that feed on producers such as plants. They play an important role in transferring energy from plants to upper trophic levels. Without them, the energy flow through the...
Body size and dispersal mode as key traits determining metacommunity structure of aquatic organisms Relationships between traits of organisms and the structure of their metacommunities have so far mainly been explored with meta-analyses. We compared metac... De,Bie,De,... - 《Ecology Letters》 被...
in culturing this organism have impeded further exploration into the impact ofSegatellaon the gut ecosystem and host health. It is an obligate anaerobe with understudied nutritional preferences, and, despite the tremendous amount of genetic diversity reported within this clade1,3,10,11, until ...
However, natural microbial com- munities are typically composed of a few dominant species followed by a large number of rare taxa (Sogin et al., 2006). These low-abundance organisms may be representatives of novel microbial lineages (Castelle et al., 2013; Kantor et al., 2013) and play ...