A5063815767- Coleoptera Taxonomy and Distribution
- Forest Insect Ecology and Management
- Ecology and Vegetation Dynamics Studies
- Species Distribution and Climate Change
- Forest Ecology and Biodiversity Studies
- Plant and animal studies
- Wildlife Ecology and Conservation
- Scarabaeidae Beetle Taxonomy and Biogeography
- Insect and Arachnid Ecology and Behavior
- Insect Utilization and Effects
- Coleoptera: Cerambycidae studies
- Avian ecology and behavior
- Insect behavior and control techniques
- Insect and Pesticide Research
- Animal Ecology and Behavior Studies
- Conservation, Biodiversity, and Resource Management
- Forest ecology and management
- Rangeland and Wildlife Management
- Animal and Plant Science Education
- Entomopathogenic Microorganisms in Pest Control
- Lepidoptera: Biology and Taxonomy
- Soil Geostatistics and Mapping
- Insects and Parasite Interactions
- Insect Pest Control Strategies
- Diptera species taxonomy and behavior
Arizona State University
2005-2023
Ross on Wye Hospital
2014
University of Washington
1972-2003
Pearson (United States)
1998
Pennsylvania State University
1977-1986
Alex's Lemonade Stand Foundation
1974
Organization for Tropical Studies
1972
Louisiana State University
1971
Houston Museum of Natural Science
1971
The family of tiger beetles (Cicindelidae) is an appropriate indicator taxon for determining regional patterns biodiversity because (1) its taxonomy stabilized; (2) biology and general life history are well understood, (3) individuals readily observed manipulated in the field, (4) occurs world‐wide a broad range habitat types; (5) each species tends to be specialized within narrow habitat; (6) richness highly correlated with those other vertebrate invertebrate taxa; (7) includes potential...
Introducing greater objectivity to selection of indicator taxa produces results that are likely reduce uncertainty, be more efficiently obtained and clearly communicated. Seven criteria presented can used objectively test the claim a given taxon is an ideal indicator: (i) well known stable taxonomy; (ii) natural history; (iii) readily surveyed manipulated; (iv) higher broadly distributed geographically over breadth habitat types; (v) lower specialized sensitive changes; (vi) patterns...
Journal Article Vertical Stratification of Birds in a Tropical Dry Forest Get access David L. Pearson Museum Zoology Louisiana State University Baton Rouge, 70803 Present address: Department Zoology, Washington, Seattle, Washington 98105. Search for other works by this author on: Oxford Academic Google Scholar The Condor, Volume 73, Issue 1, 1 January 1971, Pages 46–55, https://doi.org/10.2307/1366123 Published: 01 1971 history Accepted: July 1970
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSYNTHESIS OF TROPENIUM (CYCLOHEPTATRIENYLIUM) SALTS BY HYDRIDE EXCHANGE1Hyp J. Dauben Jr., Filon A. Gadecki, Kenneth M. Harmon, and David L. PearsonCite this: Am. Chem. Soc. 1957, 79, 16, 4557–4558Publication Date (Print):August 1, 1957Publication History Published online1 May 2002Published inissue 1 August 1957https://pubs.acs.org/doi/10.1021/ja01573a084https://doi.org/10.1021/ja01573a084research-articleACS PublicationsRequest reuse...
Journal Article The Relation of Foliage Complexity to Ecological Diversity Three Amazonian Bird Communities Get access David L. Pearson Department Zoology University Washington Seattle, 98195 Search for other works by this author on: Oxford Academic Google Scholar Condor, Volume 77, Issue 4, 1 October 1975, Pages 453–466, https://doi.org/10.2307/1366092 Published: 01 1975 history Accepted: 27 August 1974
The worldwide decline in taxonomists has a broad impact on biology and society. Learning from general historical patterns of science understanding social changes caused by growing economies, we propose priorities for training to reverse these losses. Academically trained professionals, parataxonomists (local assistants professional biologists), youths educated with an emphasis natural history, self-supported expert amateurs are the major sources taxonomists. Recruiting effort each category...
Journal Article A Pantropical Comparison of Bird Community Structure on Six Lowland Forest Sites Get access David L. Pearson Department Biology, Pennsylvania State University, University Park, PA 16802 Search for other works by this author on: Oxford Academic Google Scholar The Condor, Volume 79, Issue 2, 1 April 1977, Pages 232–244, https://doi.org/10.2307/1367167 Published: 01 1977 history Accepted: 13 September 1976
Mandible length was found to be correlated with median prey size captured by tiger beetle species in Sulphur Springs Valley, Arizona, USA. Base resource measurements of live arthropod showed a relatively narrow range (1—10.4 mm) on pond edges and broad (1—30.4 upland grassland habitat within the valley. Ten 11 sympatric edge considerable convergence mandible length, likely response available. The 6 species, however, fit into 3 distinct classes, 2 each class. On given site, normally no more...
Abstract The National Ecological Observatory Network ( NEON ) will monitor ground beetle populations across a network of broadly distributed sites because beetles are prevalent in food webs, sensitive to abiotic factors, and have an established role as indicator species habitat climatic shifts. We describe the design population sampling context 's long‐term, continental‐scale monitoring program, emphasizing design, priorities, collection methods. Freely available data associated field...
ABSTRACT Chemical baits corresponding to natural orchid fragrance chemicals were used attract and sample male bees in terra firme flood plain forest sites on the Tambo-pata Reserve south-eastern Perú. The study was conducted monthly for two years. A total of 38 species collected at these chemical baits, although most from both habitats, 11 significantly more common one habitat than other. There considerable variation number types which each bee attracted. Two cycles seasonal abundance...
Using an assemblage of tiger beetles in SE Arizona, USA, as test organisms, the potential for food a limiting resource each life cycle stages was determined. Laboratory experiments established at what levels quantity affected adults and larvae. Adult females low feeding produced significantly fewer eggs larvae than high levels. Larvae took longer to pass through all three larval stages, their pupae emergent were smaller those individuals raised higher Large survived small when deprived food....
We conducted a 2-yr study with semi-monthly collections of forest floor arthropods and periodic monitoring temperature, relative humidity, soil moisture for three habitats different drainage (terra firme, bamboo flood plain) at single site in southeastern Peru. Several diurnal seasonal patterns arthropod biomass occurred. All followed parallel coincident profiles through the four major seasons covered by this (2 yr wet dry seasons). Biomass was greater than seasons. The strongest association...
This study is the first to demonstrate that Na budgets of male and female Lepidoptera differ. At time emergence, imported cabbage butterflies, Pieris rapae L., have significantly more total body than females. Older males collected from field show a lower level freshly emerged males, whereas females older, field-collected no difference. It suggested feeding soil may help restore losses in males. A single female, through oviposition, lose nearly 75% with which it emerged. The lepidopteran...
Summary A comparison of species richness patterns butterflies and birds was made using data from two grids squares (small 137.5 km on a side large 275 side) covering western North America. Using geostatistical procedures, we found that the spatial these taxa were related. The influence grain size strength this relationship investigated by analysing sets. For both sets, number butterfly in square statistically significant predictor corresponding bird species. However, cross‐validation...
General spatial patterns of species richness can be useful when determining conservation policy. Reliable distribution data, however, are often rare or limited to a relatively few taxa in many parts the world, and extensive inventories tend expensive time consuming. Consequently, use rigorously selected bioindicator represent broad-based has been suggested as viable alternative. Because dependencies (spatial autocorrelations) likely exist common statistical techniques that assume...
We used birds, butterflies, tiger beetles, mean annual precipitation, and spatial statistical models to investigate the applicability of using indicators species richness for conservation planning on a continental scale. The were applied data collected three grids squares (each square 275 or 350 km side) covering North America, Indian subcontinent, Australia. modeling techniques determine viability single multiple predict patterns diversity ecologically phylogenetically unrelated taxa....
Due to the structuring forces and large-scale physical processes that shape our biosphere, we often find environmental ecological data are either spatially or temporally-or both temporally-dependent. When these analyzed, statistical techniques models frequently applied were developed for independent data. We describe some of detrimental consequences, such as inefficient parameter estimators, biased hypothesis test results, inaccurate predictions, ignoring spatial temporal dependencies, cite...
The defensive compounds produced by pygidial glands of adult tiger beetles were analyzed for 83 species from North America, India, and Peru. Benzal-dehyde, the most common compound detected, was found in 39 species. presence this compound, which has evolved independently only a few other arthropod groups, indicates cyanogenic precursor. Each these beetle occurred primarily one seven distinct habitats, such as forest floor, sand dune, water edge, saline flat. All also grouped according to...