NDLTD logo NDLTD Union Catalog and Global ETD Search

Global ETD Search

Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.

Results

Showing 1 to 20 of 533 for “"species composition"”.

  1. Soybean Spiders: Species Composition, Population Densities and Vertical Stratification

    Lesar, Charles DavidUniversity of Illinois at Urbana-Champaign2014

    Made available in DSpace on 2014-12-14T07:03:58Z (GMT). No. of bitstreams: 1 7726698.pdf: 2311519 bytes, checksum: 8a525d84fb0775b568f1f6cb0dc676ed (MD5) Previous issue date: 1977

    uiuc Repository record

  2. SPATIAL VARIABILITY IN SPECIES COMPOSITION IN NEOTROPICAL MONTANE TREE COMMUNITIES

    Garcia Cabrera, KarinaWake Forest University2011

    … characteristics, diversity, and floristic composition across the elevational gradient and at tree line. Thirty –six 0.1–ha tree plots were installed (1) along three different elevational transects in tropical montane cloud forest (TMCF) between 1500 and 3600 m and (2) across a …

    wfu Repository record

  3. Using Plant Functional Traits to Estimate Prairie Restoration Species Composition

    Schreurs, Rebecca2015

    … data that may facilitate the prediction of plant species composition from species functional traits in different ages of prairie restorations. The inexpensive and diverse nature of Maxent makes it advantageous to restoration managers allowing them to manage expenditures in the field. Maxent …

    govst Repository record

  4. CHARACTERIZING PATTERNS IN TEXAS GULF COAST BEACH DUNE PLANT SPECIES COMPOSITION

    Foster, Cody2021

    … percent bare sand, percent vegetative cover, and species richness. Cluster Analysis, ANOSIM, and SIMPER results indicate that Texas beaches can be divided into northern and southern regions based on differences in species composition of plant communities. Indicator Species Analysis (ISA) indicates …

    sfasu Repository record

  5. Patterns of temporal changes in species composition and diversity in island ecosystems

    Καραδήμου, Ελπίδα2017

    … since there is an increasing awareness that species’ traits influence species coexistence and ecosystem function. Ecologists now quantify trait variation or multivariate trait differences within a community, generally referred to as ‘functional diversity’ (FD). This diversity facet …

    patras-thes Repository record

  6. Diversity, species composition and distribution of odonates (odonata) in Johor state, peninsular Malaysia

    Abdul Aziz, Muhamad Amirul AshrafUniversiti Tun Hussein Onn Malaysia2018

    … this research are to determine the diversity and species composition of odonates in selected sites in Johor, to map distribution pattern based on faunistic and ecological aspects and to identify identify prioritize conservation areas and potential sites for odonate tourism using priority grid …

    uthm Repository record

  7. Determinants of species composition, functional leaf traits, and floristic quality in restored wetlands

    Charles, BrianUniversity of Illinois at Urbana-Champaign2022

    This Thesis was approved for publication on 2021-11-24 at 13:14.

    uiuc Repository record

  8. Exploring the relationship between restored ecosystem function and species composition: a meta-analysis

    Forsythe,Katherine JanePercy FitzPatrick Institute of African Ornithology2013

    … former ecosystem functioning as well as specific species assemblages, not just biodiversity. In many cases monitoring programmes lack funds to measure all these aspects and often assume relationships between these variables; however, these relationships remain largely untested. In this thesis, I …

    cape-town Repository record

  9. Mob stocking effects on herbage nutritive value, herbage accumulation, and plant species composition

    Bauer, Robert BenjaminVirginia Tech2015

    … (2) compare the abundance of seeded clover species among the stocking methods; and (3) estimate the nutritional value of herbage that is consumed by beef cattle during mob stocking using extrusa sampled from esophageally-cannulated animals. Analysis of standing herbage during two years …

    vt Repository record

  10. Fish species composition, fish sizes and diversity in the Kamutjonga floodplain, Kavango river, Namibia

    Libala, Stellah NaumiUniversity of Namibia2023

    … aims to provide information on the fish species composition, fish sizes and species diversity in the Kavango River’s Kamutjonga floodplain as a basis to provide management advice to ensure the sustainable use of the fisheries. The fish species composition and relative abundance were …

    namibia Repository record

  11. Phytoplankton Abundance and Species Composition in Relation to Environmental Paramenters in Coastal Mississippi Waters

    Molina, Luz Karime2016

    … the spatial and temporal distributions and composition of phytoplankton communities. Concentration of phytoplankton pigments were analyzed using High Performance Liquid Chromatography (HPLC) and the compositional changes in phytoplankton communities were determined with CHEMTAX 1.95. Surface …

    usm Repository record

  12. Diversity and species composition of ants in arid and semi-arid regions of Iran

    Paknia, OmidUniversität Ulm

    ulm-diss Repository record

  13. Perch Selection by Male Dragonflies (Odonata, Anisoptera) Related to Competitive Ability and Species Composition

    Beard, Jessica L.2015

    <p>Males of many species of dragonflies (Odonata, Anisoptera) establish territories in aquatic habitats where they compete with other males for access to food and females. Territorial males typically perch on emergent vegetation and chase rival males who intrude into their territories. This …

    odu Repository record

  14. Species composition and larval instar population structure of Scarabaeids in forestry in the Natal Midlands

    University of Pretoria2006

    … used to identify larvae as a particular morphospecies with the aid of the dissecting microscope. Head I capsule width pattern was used to determine the larval instars responsible for the damage. High incidences of seedling damage was recorded from December to April. Several morphospecies were …

    pretoria Repository record

  15. Zooplankton Species Composition and Diversity in Floodplain Ponds: Effects of Flooding and Local Site Characteristics

    Medley, Kim A.

    … and dispersal of colonists from the regional species pool together shape local communities. Physicochemical characteristics and biotic interactions influence local conditions and physical connection through flooding provides dispersal corridors for inundated pond communities. I explored …

    mo-state Repository record

  16. Species Composition and Spatial Ecology of Amazonian Understory Mixed-Species Flocks in a Fragmented Landscape

    Mokross, KarlRenewable Natural Resources2022

    … and roads. Conservation, however must take species interactions into consideration as they play a pivotal part the maintenance of several biological processes in the tropics. One of the most conspicuous interspecific interactions are seen in mixed-species flocks of birds, which in the …

    lsu-thes Repository record

  17. Species composition, distribution, and phytosociology of Kalsow Prairie, a mesic tall-grass prairie in Iowa

    Brotherson, Jack1969

    iastate Repository record

  18. Characterization of Vascular Plant Species Composition and Relative Abundance in Southern Appalachian Mixed-Oak Forests

    Hammond, Daniel N. Jr.Virginia Tech1997

    … address questions concerning the variability in species composition, richness, and relative abundance of vascular plant species in those communities. All forest strata were sampled using a nested plot design. Variability in species richness and species composition was found to be high. Total …

    vt Repository record

  19. Bycatch associated with a horseshoe crab (Limulus polyphemus) trawl survey: identifying species composition and distribution

    Graham, Larissa JoyVirginia Tech2007

    … Plan (FMP) was only recently created for this species. To date, there have not been any studies that have attempted to identify or quantify bycatch in the horseshoe crab trawl fishery. A horseshoe crab trawl survey was started in 2001 to collect data on the relative abundance, distribution, and …

    vt Repository record

  20. Contribution of crop morphological characteristics and density of selected crops to weed species composition and suppression

    Isaac, W. A. P.Lincoln University2001

    … growing season to investigate the effect of crop species and sowing density on weed dynamics, productivity and species composition. Crops with a spreading (narrow-leafed lupin, Lupimus augustifolius and dwarf French bean, Phaseolus vulgaris), rosette (turnip, Brassica campestris and forage rape, …

    lincoln Repository record

Page 1 of 27