Macrofungal diversity of a temperate oak forest: a test of species richness estimators

1999 ◽  
Vol 77 (7) ◽  
pp. 1014-1027 ◽  
Author(s):  
John Paul Schmit ◽  
John F. Murphy ◽  
Gregory M. Mueller
Keyword(s):  
Species Richness ◽  
Oak Forest ◽  
Richness Estimators

Macrofungal diversity of a temperate oak forest: a test of species richness estimators

1999 ◽  
Vol 77 (7) ◽  
pp. 1014-1027 ◽  
Author(s):  
John Paul Schmit ◽  
John F Murphy ◽  
Gregory M Mueller
Keyword(s):  
Species Richness ◽  
Species Diversity ◽  
Deciduous Forest ◽  
Hardwood Forests ◽  
Oak Forest ◽  
Species Richness Estimation ◽  
Indiana Dunes ◽  
Richness Estimators ◽  
Diversity Estimates ◽  
Better Than

Two 0.1-ha plots, each divided into 10 contiguous subplots, were established in a Quercus-dominated deciduous forest in the Indiana Dunes National Lakeshore. Macrofungi were surveyed on these plots at weekly intervals during the fruiting season over 3 years. During this survey 177 species were recorded, including 30 species inhabiting leaf litter, 36 ectomycorrhizal species, 29 non-mycorrhizal soil-inhabiting species, and 79 wood-inhabiting species. This species richness is comparable to, but slightly higher than, that reported by other plot-based studies undertaken in hardwood forests. We compared the ability of seven species-richness estimation techniques to determine the true species richness on these plots. While some estimators performed better than others, in general the estimations were too low based on the following year's data and were not consistent from year to year. We found some evidence of spatial autocorrelation of communities of fungi found in adjacent subplots. This indicates that the benefit of using contiguous subplots to increase the homogeneity of the area sampled needs to be balanced against the possibility of underestimating the species richness of an area because of spatial autocorrelation.Key words: macrofungi, species diversity, diversity estimates, Indiana Dunes.

Catalogue of aquatic Oligochaeta (Annelida: Clitellata) of Montenegro, exclusive of Naidinae and Pristininae

Zootaxa ◽  
2011 ◽  
Vol 2985 (1) ◽  
pp. 1
Author(s):  
DANIJELA ŠUNDIĆ ◽  
BRANKO M. RADUJKOVIĆ ◽  
JASMINA KRPO–ĆETKOVIĆ
Keyword(s):  
Species Richness ◽  
Black Sea ◽  
Adriatic Sea ◽  
First Record ◽  
Aquatic Oligochaeta ◽  
The Black Sea ◽  
Drainage Basins ◽  
Aquatic Oligochaete ◽  
Balkan Region ◽  
Richness Estimators

The aquatic oligochaete fauna of Montenegro was recently studied in order to improve the knowledge of this group in the Balkan region. This study was carried out on sediments collected from 70 sampling sites (the Black Sea and the Adriatic Sea drainage basins) during three years (2005–2008). Forty-one species were identified, from seven following families: Naididae, Enchytraeidae, Haplotaxidae, Lumbriculidae, Lumbricidae, Criodrilidae and Branchiobdellidae (exclusive of Naidinae and Pristininae). Sixteen of them represent first record for the Montenegrin oligochaete fauna: Embolocephalus velutinus, Ilyodrilus templetoni, Psammoryctides deserticola, Spirosperma ferox, Tubifex ignotus, Bathydrilus adriaticus, Bothrioneurum vejdovskyanum, Rhyacodrilus coccineus, Cernosvitoviella atrata, Enchytraeus buchholzi, Mesenchytraeus armatus, Haplotaxis gordioides, Rhynchelmis limosella, Stylodrilus heringianus, Tatriella slovenica and Trichodrilus strandi. The list of species from the subfamilies Naidinae and Pristininae was published previously (Šundić et al. 2011), and it comprises 36 species. Altogether, the present study and literature data show that Montenegrin aquatic oligochaete fauna consists of 77 species. Concerning similarity, values of Jaccard’s index are the highest between Montenegrin and Serbian oligochaete fauna (57 %), and the lowest between Montenegrin and Albanian oligochaete fauna (27.77 %). Species richness estimators (Mao Tau, Uniques Mean, Chao 1, Chao 2, Jack 1, Jack 2, Bootstrap, ACE and ICE) indicate that findings of new oligochaete species in Montenegro are expected.

Application of species-richness estimators for the assessment of earthworm diversity

2013 ◽  
Vol 49 (5-8) ◽  
pp. 273-283 ◽  
Author(s):  
Tanja Milutinović ◽  
Jovana Milanović ◽  
Mirjana Stojanović
Keyword(s):  
Species Richness ◽  
Richness Estimators

Is orchid species richness and abundance related to the conservation status of oak forest?

Plant Ecology ◽  
2010 ◽  
Vol 212 (7) ◽  
pp. 1091-1099 ◽  
Author(s):  
Quetzal Tonalli Cruz-Fernández ◽  
María Luisa Alquicira-Arteaga ◽  
Alejandro Flores-Palacios
Keyword(s):  
Species Richness ◽  
Conservation Status ◽  
Oak Forest ◽  
Orchid Species ◽  
Species Richness And Abundance

scholarly journals Plant community diversity and composition provide little resistance to Juniperus encroachment

Botany ◽  
2008 ◽  
Vol 86 (12) ◽  
pp. 1416-1426 ◽  
Author(s):  
Amy C. Ganguli ◽  
David M. Engle ◽  
Paul M. Mayer ◽  
Eric C. Hellgren
Keyword(s):  
Species Richness ◽  
Species Diversity ◽  
Species Composition ◽  
Plant Species ◽  
Plant Community ◽  
Tallgrass Prairie ◽  
Abiotic Factors ◽  
Community Diversity ◽  
Oak Forest ◽  
Old Field

Widespread encroachment of the fire-intolerant species Juniperus virginiana  L. into North American grasslands and savannahs where fire has largely been removed has prompted the need to identify mechanisms driving J. virginiana encroachment. We tested whether encroachment success of J. virginiana is related to plant species diversity and composition across three plant communities. We predicted J. virginiana encroachment success would (i) decrease with increasing diversity, and (ii) J. virginiana encroachment success would be unrelated to species composition. We simulated encroachment by planting J. virginiana seedlings in tallgrass prairie, old-field grassland, and upland oak forest. We used J. virginiana survival and growth as an index of encroachment success and evaluated success as a function of plant community traits (i.e., species richness, species diversity, and species composition). Our results indicated that J. virginiana encroachment success increased with increasing plant richness and diversity. Moreover, growth and survival of J. virginiana seedlings was associated with plant species composition only in the old-field grassland and upland oak forest. These results suggest that greater plant species richness and diversity provide little resistance to J. virginiana encroachment, and the results suggest resource availability and other biotic or abiotic factors are determinants of J. virginiana encroachment success.

scholarly journals A structured inventory of spiders (Arachnida, Araneae) in natural and artificial forest gaps at Porto Urucu, Western Brazilian Amazonia

2010 ◽  
Vol 40 (2) ◽  
pp. 357-372 ◽  
Author(s):  
Alexandre B. Bonaldo ◽  
Sidclay C. Dias
Keyword(s):  
Species Richness ◽  
Performance Test ◽  
Gas Production ◽  
Pitfall Traps ◽  
Preliminary Survey ◽  
Community Similarity ◽  
Herbaceous Vegetation ◽  
Richness Estimators ◽  
Best Fit ◽  
Shelter Availability

A preliminary survey of the spider fauna in natural and artificial forest gap formations at “Porto Urucu”, a petroleum/natural gas production facility in the Urucu river basin, Coari, Amazonas, Brazil is presented. Sampling was conducted both occasionally and using a protocol composed of a suite of techniques: beating trays (32 samples), nocturnal manual samplings (48), sweeping nets (16), Winkler extractors (24), and pitfall traps (120). A total of 4201 spiders, belonging to 43 families and 393 morphospecies, were collected during the dry season, in July, 2003. Excluding the occasional samples, the observed richness was 357 species. In a performance test of seven species richness estimators, the Incidence Based Coverage Estimator (ICE) was the best fit estimator, with 639 estimated species. To evaluate differences in species richness associated with natural and artificial gaps, samples from between the center of the gaps up to 300 meters inside the adjacent forest matrix were compared through the inspection of the confidence intervals of individual-based rarefaction curves for each treatment. The observed species richness was significantly higher in natural gaps combined with adjacent forest than in the artificial gaps combined with adjacent forest. Moreover, a community similarity analysis between the fauna collected under both treatments demonstrated that there were considerable differences in species composition. The significantly higher abundance of Lycosidae in artificial gap forest is explained by the presence of herbaceous vegetation in the gaps themselves. Ctenidae was significantly more abundant in the natural gap forest, probable due to the increase of shelter availability provided by the fallen trees in the gaps themselves. Both families are identified as potential indicators of environmental change related to the establishment or recovery of artificial gaps in the study area.

scholarly journals Birds of the Parque Ecológico Lagoa da Fazenda, Sobral, Ceará state, northeastern Brazil

Check List ◽  
2017 ◽  
Vol 13 (1) ◽  
pp. 2037
Author(s):  
Ana Carolina Brasileiro ◽  
Frede Lima-Araujo ◽  
Jamile Aragão Alcântara ◽  
Alano Sousa Martins Pontes ◽  
José André Neto ◽  
...  
Keyword(s):  
Species Richness ◽  
Urban Expansion ◽  
Bird Species ◽  
Northeastern Brazil ◽  
Urban Park ◽  
Native Vegetation ◽  
Natural Areas ◽  
Local Species Richness ◽  
Local Species ◽  
Richness Estimators

Natural areas within cities are important as they contribute to maintain biodiversity and the functioning of ecosystems. In Ceará state, inventories of birds in human-impacted areas are still scarce. Here, we inventory bird species and estimate the species richness at Parque Ecológico Lagoa da Fazenda, an urban park in the municipality of Sobral, in northeastern Brazil. We found 82 bird species, of which 16 breed in the area, three are endemics, and three others are introduced. Despite the moderate species richness detected, richness estimators revealed that sampling was sufficient to detect most species. To maintain or even increase local species richness, we suggest the cessation of urban expansion within the park, sewage dumping, and filling of the wetland, as well as further planting of native vegetation.

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