Results 41 to 50 of about 4,516,586 (256)

Zenith placement of camera traps can individually identify the güiña Leopardus guigna: implications for population studies and conservation

open access: yesOryx
Population estimates of abundance and density are key metrics to evaluate the conservation status of wild felids and inform conservation actions. Individual identification of wild felids with camera traps has been carried out mostly for large and ...
Nicolás Gálvez   +5 more
doaj   +1 more source

Assembly Processes and Co-occurrence Patterns of Abundant and Rare Bacterial Community in the Eastern Indian Ocean

open access: yesFrontiers in Microbiology, 2021
Microbial communities are composed of many rare species and a few abundant species. Considering the disproportionate importance of rare species for ecosystem functioning, it is important to understand the mechanisms structuring the rare and abundant ...
Liuyang Li   +17 more
doaj   +1 more source

Competition from sea to mountain: Interactions and aggregation in low‐diversity monogenean and endohelminth communities in twospot livebearer Pseudoxiphophorus bimaculatus (Teleostei: Poeciliidae) populations in a neotropical river

open access: yesEcology and Evolution, 2020
The role of interspecific interactions in structuring low‐diversity helminth communities is a controversial topic in parasite ecology research. Most parasitic communities of fish are species‐poor; thus, interspecific interactions are believed to be ...
Guillermo Salgado‐Maldonado   +7 more
doaj   +1 more source

Pollinator‐mediated plant coexistence requires high levels of pollinator specialization

open access: yesEcology and Evolution, 2023
In pollen‐limited plant communities, the foraging behavior of pollinators might mediate coexistence and competitive exclusion of plant species by determining which plants receive conspecific pollen. A key question is whether realistic pollinator foraging
Bethanne Bruninga‐Socolar   +3 more
doaj   +1 more source

Adult conspecific density affects Janzen-Connell patterns by modulating the recruitment exclusion zones

open access: yesFrontiers in Plant Science, 2023
Plant-soil negative feedback (NF) is a well-established phenomenon that, by preventing the dominance of a single species, allows species coexistence and promotes the maintenance of biodiversity. At community scale, localized NF may cause the formation of
Giuliano Bonanomi   +10 more
doaj   +1 more source

Desiccation of rock pool habitats and its influence onpopulation persistence in a Daphnia metacommunity [PDF]

open access: yes, 2009
Habitat instability has an important influence on species' occurrence and community composition. For freshwater arthropods that occur in ephemeral rock pools, the most drastic habitat instabilities are droughts and the intermittent availability of water.
Pajunen, I.   +14 more
core   +2 more sources

Interspecific association characteristics of Alternanthera philoxeroides-invaded communities and their latitudinal variations

open access: yesFrontiers in Ecology and Evolution
Biological invasions can lead to changes in the interspecific association and coexistence patterns of plant species; however, the differences in the interspecific association characteristics of invaded plant communities in heterogeneous habitats and ...
Hao Wu   +7 more
doaj   +1 more source

Species coexistence through simultaneous fluctuation-dependent mechanisms. [PDF]

open access: yesProc Natl Acad Sci U S A, 2018
Understanding the origins and maintenance of biodiversity remains one of biology's grand challenges. From theory and observational evidence we know that variability in environmental conditions through time is likely critical to the coexistence of ...
Letten AD, Dhami MK, Ke PJ, Fukami T.
europepmc   +2 more sources

Design and analysis strategies for robust microbiome ageing research

open access: yesFEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik   +5 more
wiley   +1 more source

Reconstructing enzyme evolution by protein engineering

open access: yesFEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler   +2 more
wiley   +1 more source

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