A5018138784- Subterranean biodiversity and taxonomy
- Karst Systems and Hydrogeology
- Marine Biology and Ecology Research
- Environmental DNA in Biodiversity Studies
- Aquatic Invertebrate Ecology and Behavior
- Marine Ecology and Invasive Species
- Plant and animal studies
- Amphibian and Reptile Biology
- Geology and Paleoclimatology Research
- Parasite Biology and Host Interactions
- Ecology and Vegetation Dynamics Studies
- Protist diversity and phylogeny
- Insect and Arachnid Ecology and Behavior
- Turtle Biology and Conservation
- Species Distribution and Climate Change
- Groundwater and Isotope Geochemistry
- Genetic diversity and population structure
- Marine and environmental studies
- Groundwater and Watershed Analysis
- Fish Ecology and Management Studies
- Freshwater macroinvertebrate diversity and ecology
- Study of Mite Species
- Plant Parasitism and Resistance
- Diatoms and Algae Research
- Landslides and related hazards
American University
2016-2025
The University of Adelaide
2023
Vale Technological Institute
2021
University of Ljubljana
2014
Centre National de la Recherche Scientifique
1999
University of Maryland, College Park
1999
Université Claude Bernard Lyon 1
1999
Northwestern University
1972-1988
University of Chicago
1971-1972
Yale University
1970
A model is developed for the coexistence and exclusion of species over a region similar habitable patches. Since balance local extinction colonization would leave some patches unoccupied even without competitors, may coexist when all are same. Regional competition coefficients found affect or migration rates each other. Rare can regulate other exclude completely.
Abstract In light of recent alarming trends in human population growth, climate change, and other environmental modifications, a “Warning to humanity” manifesto was published BioScience 2017. This call reiterated most the ideas originally expressed by Union Concerned Scientists 1992, including fear that we are “pushing Earth's ecosystems beyond their capacities support web life.” As subterranean biologists, take this opportunity emphasize global importance conservation challenges associated...
SUMMARY (1) The interactions of ants and diplochorous Viola seeds were studied at four forest forest-edge sites in Monongahela National Forest, West Virginia. Of the nine species studied, six (V. blanda, V. papilionacea, pedata, pensylvanica, rostrata triloba) readily taken. (2) most important seed transporters Aphaenogaster spp., but Formica subsericea, Lasius alienus, Leptothorax Myrmica punctiventris Tapinoma sessile also took seeds. Unlike situation Europe, rufa group displayed little...
Analysis of herbaceous vegetation and ant activity in random quadrats from 10 forest sites West Virginia, USA, shows that ant—dispersed (myrmecochorous) plant species constitute about 30% the flora. Twenty—one such were encountered this study, three which not previously known myrmecochores: Carex jamesii, C. laxiculmis Luzula echinata. Ant is a good predictor number myrmecochorous at given site. There also weak correlation between overall richness. A matrix coefficients Wisconsin ordination...
Species distribution models (SDMs) are numerical tools that combine observations of species occurrence or abundance with environmental estimates. They used to gain ecological and evolutionary insights predict distributions across landscapes, ...Read More
Abstract: We assembled a list of obligate cave‐dwelling species and subspecies, their county distribution, provisional global conservation rank. A total 927 46 additional subspecies in 96 families exclusively from cave associated subterranean habitats have been described the 48 contiguous states United States. The terrestrial (troglobitic) are concentrated northeast Alabama (especially Jackson County), with other concentrations Kentucky, Texas, Virginia, West Virginia. Only 23 counties,...
Certain seed dispersers may benefit plants by depositing seeds in specific microsites favorable for survival or growth. This has been called "directed dispersal." We examine the effects of dispersal ants on demography two cohorts Corydalis aurea: one relocated to ant nests undisturbed foragers, and a control cohort equal numbers planted hand vicinity each nest. The ant-treated produced 90% more offspring than had higher finite rate increase: increase 2.83 per year versus 2.05 control. was...
Experimental plantings of the seeds two species Viola odorata and V. hirta were carried out to determine relative importance three effects myrmecochory: 1) clumping seeds, 2) scarification testa elaiosome removal, 3) relocation into ant nests. The study site was a beech‐larch wood in southern England. Data show that slightly reduces seedling emergence, removal enhances it, while nest environment significantly increases rate emergence. Only last effect is statistically significant. Seedlings...
Scientists of different disciplines have recognized the valuable role terrestrial caves as ideal natural laboratories in which to study multiple eco-evolutionary processes, from genes ecosystems. Because and other subterranean habitats are semi-closed systems characterized by a remarkable thermal stability, they should also represent insightful for understanding effects climate change on biodiversity situ. Whilst number recent advances demonstrated how promising this fast-moving field...
ABSTRACT Five decades ago, a landmark paper in Science titled The Cave Environment heralded caves as ideal natural experimental laboratories which to develop and address general questions geology, ecology, biogeography, evolutionary biology. Although the ‘caves laboratory’ paradigm has since been advocated by subterranean biologists, there are few examples of studies that successfully translated their results into principles. contemporary era big data, modelling tools, revolutionary advances...
Abstract Groundwater is a vital ecosystem of the global water cycle, hosting unique biodiversity and providing essential services to societies. Despite being largest unfrozen freshwater resource, in period depletion by extraction pollution, groundwater environments have been repeatedly overlooked conservation agendas. Disregarding importance as an ignores its critical role preserving surface biomes. To foster timely groundwater, we propose elevating concept keystone species into realm...