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89 results for “ecological surveys”
Figure 9 in Survey of European mites from the suborder Uropodina: II. Morphology, geographical distribution, biology, and ecology of Trematurella elegans (Kramer, 1882)
Figure 9 Trematurella elegans – Deutonymph: A – Lateral view; B – Dorsal side, General view; C – Sternal region; D – Opisthosoma.
Figure 13 in Survey of European mites from the suborder Uropodina: II. Morphology, geographical distribution, biology, and ecology of Trematurella elegans (Kramer, 1882)
Figure 13 Trematurella elegans – Larva, ventral side: A – General view; B – Gnathosoma; C – Intercoxal region; D – Opisthosoma.
Figure 8 in Survey of European mites from the suborder Uropodina: II. Morphology, geographical distribution, biology, and ecology of Trematurella elegans (Kramer, 1882)
Figure 8 Trematurella elegans – Deutonymph, dorsal side: A – General view; B – Anterior part of idiosoma; C – Central part of dorsal shield; D – Posterior part of idiosoma; E – Lateral part of idiosoma.
Figure 11 in Survey of European mites from the suborder Uropodina: II. Morphology, geographical distribution, biology, and ecology of Trematurella elegans (Kramer, 1882)
Figure 11 Trematurella elegans – Protonymph, ventral side: A – General view; B – Hypostome; C – intercoxal region; D – Opisthosoma.
Figure 4 in Survey of European mites from the suborder Uropodina: II. Morphology, geographical distribution, biology, and ecology of Trematurella elegans (Kramer, 1882)
Figure 4 Trematurella elegans – Female, ventral side: A – General view; B – Intercoxal region; C – Opisthosoma; D – Anal region, E – Pedofossae III and IV.
Figure 10 in Survey of European mites from the suborder Uropodina: II. Morphology, geographical distribution, biology, and ecology of Trematurella elegans (Kramer, 1882)
Figure 10 Trematurella elegans – Protonymph, dorsal side: A – General view; B – Vertex and anterior part of the idiosoma; C – Sculpture and setae in the midpart of shield; D – Posterior part of the idiosoma; E – Marginal setae.
Figure 7 in Survey of European mites from the suborder Uropodina: II. Morphology, geographical distribution, biology, and ecology of Trematurella elegans (Kramer, 1882)
Figure 7 Trematurella elegans – Male, ventral side: A – General view; B – Intercoxal region, P – pores; C –Gnathosoma.
Supplementary material to: Dengler, J., Jansen., F., … & Gillet, F. (2023) Ecological Indicator Values for Europe (EIVE) 1.0. Vegetation Classification and Survey.
<p>The newly developed Ecological Indicator Values for Europe (EIVE) 1.0, together with all source systems in a flexible, harmonised open access database.</p> <p><br> Supplementary material 2: The analysed 31 EIV systems with original and harmonised plant nomenclature and original and rescaled indicator values for M, N, R, L and T (*.xlsx).</p> <p>Supplementary material 3: Documentation of additions to and modifications of the taxonomic backbone from Euro+Med (2022) in EIVE 1.0 (*.xslx).</p> <p>Supplementary material 8: EIVE 1.0 indicator values for niche position and niche width of M, N, R, L and T (*.xlsx).</p>
Figure 3 in Fish fauna survey on the Upper Maroni (French Guyana) between 2000 and 2002 with some ecological considerations
Figure 3. – Water level at Antecume Pata (A. Cognat data) with sampling assignments indicated 51 – M5).
Figure 1 in Fish fauna survey on the Upper Maroni (French Guyana) between 2000 and 2002 with some ecological considerations
Figure 1. – Maps of the region of Antecume Pata and location of the 3 sites around Antecume Pata and the site upstream (Pilikisoula), from left to right: location of the sites on a geographical map, on the hydrographical map, and detail on the location of the sites at Antécume Pata (© Google – Image Landat / Copernicus).
R_JAGS code for estimation and analysis of species-area-relationship (SAR) parameters from NEON (National Ecological Observatory Network) data on plant surveys
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Small mammals surveys, 1981 - 1996, Adirondack Long-Term Ecological Monitoring Program Project No. 10 by Adirondack Ecological Center of the State University of New York College of Environmental Science and Forestry, Newcomb, New York. Environmental Data Initiative
Small mammals are important in forested ecosystems: they are key predators on seeds and invertebrates, provide food for larger predators and act as disease vectors. The objective of this study was to document small mammal abundance and population changes in managed and unmanaged forests of Huntington Wildlife Forest (HWF). Seven sites were sampled from 1981-1996. Fifty traps per site (250 total) were deployed for 4 nights and checked in the mornings. All captured small mammals were identified, sexed, weighed, and measured for reproductive condition, tagged, and brought into the lab for processing. Females with embryos or placental scars were noted in the lab. Over a five-year period, 671 deer mice; 261 woodland jumping mice, 594 southern redbacked voles, 248 short-tailed shrews, 373 masked shrews, 75 smoky shrews and small numbers of other species were captured and sexed/aged. According to Prachar and Sage (1988), weights of deer mice, redbacked voles, woodland jumping mice, short-tailed shrews, masked shrews and smoky shrews differed among years and age classes for 1983-1987. Weights differed between sexes for mice and voles but not shrews. Placental scar/embryo counts of mice and voles did not differ among years, habitats, mammal age classes or sexes. Reproductive rates of shrews exhibited patterns of fluctuation from 1983-1987.
Songbird surveys , 1952 - 1964, 1983 - 2008 Adirondack Long-Term Ecological Monitoring Program Project No. 2 Breeding Birds by Adirondack Ecological Center of the State University of New York College of Environmental Science and Forestry, Newcomb, New York. Environmental Data Initiative.
Study objectives were to (1) Document long-term trends in relative abundance and diversity of breeding forest birds (songbirds) in forest stands with different harvest histories and (2) Identify bird species that can be used as indicators of habitat change or degradation. Declines in neotropical migrants have been linked to changes in habitat quantity and quality across species' range. Songbirds that nest and forage in different habitat types or at different heights in the forest canopy may not be affected equally by forest change or management. We detected breeding songbirds using point-counts at Huntington Wildlife Forest (HWF) in the central Adirondack Mountains of New York during 1983-2000 and modeled on an original songbird point count dataset from Webb et al. (1977). Relative abundance (RA, the number of individual birds/count) was measured in sites with differing management histories, from an unmanaged >300-year-old stand to a stand cut with the shelterwood/overstory removal method just prior to sampling in 1983). Over eighty bird species were detected during the study duration. Songbird ecology and habitat characteristics can be used to understand long-term changes in relative abundance as related to forest change.
Interagency Ecological Program: Sacramento-San Joaquin Delta boat electrofishing survey during the critical drought of 2014
The objective of this study was to assess the relative distributions of non-native resident fishes occurring in littoral habitats during the drought year of 2014 within the western and northern portion of California's Sacramento-San Joaquin Delta (Delta), USA. A number of non-native resident fish species (e.g., black bass, Micropterus spp.) in the Delta have undergone remarkable increases in density in the early 2000s and they are potential predators of endangered native fishes such as Chinook Salmon (Oncorhynchus tshawytscha) and Delta Smelt (Hypomesus transpacificus). The Delta makes up the tidal freshwater portion of the San Francisco Estuary in California; however, the critically dry year of 2014 caused a considerable intrusion of salinity field within this region and may have caused a shift in the resident fish community. To evaluate the response of non-native resident fishes to this salinity intrusion, a boat electrofishing survey was conducted in November of 2014 in the western and northern part of the Delta by the United States Fish and Wildlife Service, Lodi, California Office as part of the Interagency Ecological Program for the San Francisco Estuary. Replicate sampling was done for each site in this study in order to account for false zeroes through the estimation of capture probability.
Ecological Survey of Central Arizona: soil chemistry and soil properties in the greater Phoenix metropolitan area and surrounding Sonoran desert, survey year 2000
The Ecological Survey of Central Arizona (ESCA) is an extensive field survey and integrated inventory designed to capture key ecological indicators of the CAP LTER study area consisting of the urbanized, suburbanized, and agricultural areas of metropolitan Phoenix, and the surrounding Sonoran desert. The survey is conducted every five years at approximately 200 sample plots (30m x 30m) that were located randomly using a tessellation-stratified dual-density sampling design. Study plots cover habitats throughout the CAP LTER study area ranging from native Sonoran desert sites to residential yards to an airport tarmac. Measurements include an inventory of all plants (identified to the lowest possible taxonomic unit, typically species), plant biovolume, soil coring for physicochemical properties, arthropod sweep-net sampling, photo documentation, and a visual survey of site and area characteristics. The objectives of the survey are to (1) characterize patches in terms of key biotic, physical, and chemical variables, and (2) examine relationships among land use, general plant diversity, native plant diversity, plant biovolume, soil nutrient status, and social-economic indices along an indirect urban gradient. This data set focuses specifically on soil chemistry and soil properties assessed during the 2000 survey year. Investigators interested in soil data from more recent surveys or other measured variables should search the data catalog for 'ecological survey of central arizona' or 'survey 200' to locate those and other data related to the CAP LTER's ESCA.
Survey data Agro-ecological farming in Protected Areas
<p>“Produce better, eat well" is the subtitle of the Good Food Strategy of the Brussels-Capital Region. Can (sub)urban protected areas simultaneously contribute to this challenge and support biodiversity? In order to find inspiring cases, we launched an online survey in English, French and Dutch and spread it through networks on agro-ecological farming and nature conservation. We identified 76 Western-European cases of agro-ecological farming in protected areas. This database includes all of these cases. The survey was followed by in-depth interviews and the findings were summarized in this report.</p>
Figure 14 in Survey of European mites from the suborder Uropodina: II. Morphology, geographical distribution, biology, and ecology of Trematurella elegans (Kramer, 1882)
Figure 14 Distribution ofTrematurella elegans in Europe;? – Probable occurrence.
Figure 3 A, B in Survey of European mites from the suborder Uropodina: II. Morphology, geographical distribution, biology, and ecology of Trematurella elegans (Kramer, 1882)
Figure 3 A, B – Trematurella elegans – Female, characteristic spines (S) on the marginal shield.
Figure 7 in Fish fauna survey on the Upper Maroni (French Guyana) between 2000 and 2002 with some ecological considerations
Figure 7. – Comparison between the catches near Antecume Pata and upstream.
Figure 6 in Fish fauna survey on the Upper Maroni (French Guyana) between 2000 and 2002 with some ecological considerations
Figure 6. – Specific composition between Day and Night catches.
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International Brain Laboratory public data
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OpenNeuro
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