geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Bird guilds as indicators of ecological condition in the central Appalachians


, : Bird guilds as indicators of ecological condition in the central Appalachians. Ecological Applications ember; 10(6): 1706-1721

We developed an index of biotic integrity based on bird communities in the central Appalachians. As one component of the U.S. Environmental Protection Agency, Environmental Monitoring and Assessment Program's (EPA-EMAP) Mid-Atlantic Highlands Assessment (MAHA), the index is intended to indicate landscape-scale stressors to upland environments in the central Appalachians. The Bird Community Index (BCI) ranks bird communities according to the proportional representation of 16 behavioral and physiological response guilds. We developed the index from 34 sites in central Pennsylvania that represented a gradient of human disturbance from near pristine to degraded. Upon satisfactory demonstration that the BCI could discriminate between categories of biotic integrity identified from the human disturbance gradient, we applied it to an independent, probability-based sample of 126 sites across the MAHA area. Our assessment indicates that 16% of the area is in "excellent" condition, 27% is in "good" condition, 36% is in "fair" condition, and 21% is in "poor" condition. Sites in poor condition were dominated by either urban or agricultural bird communities, but these communities could not be numerically distinguished from each other by BCI score. Forested sites in good and excellent condition supported different bird communities and ground-level vegetation attributes but could not be separated by land cover composition alone. In general, the shift from medium to poor ecological condition defined by bird communities coincided with a shift in land cover composition from forested to nonforested.

US$19.90

DOI: 10.1890/1051-0761(2000)010[1706:BGAIOE]2.0.CO;2


Other references

Karam, J.D.; Chao, L.; Warr, G.W., 1990: Methods in nucleic acids research. A variety of genetic engineering and molecular genetics techniques are brought together in this multiauthored manual, which consists of the following chapters: (1) purification of chromosomal DNA for library construction; (2) the chemical synthesi...

Cain, J.M., 2000: Ethical guidelines in the prevention of iatrogenic multiple pregnancy. International Journal of Gynaecology and Obstetrics: the Official Organ of the International Federation of Gynaecology and Obstetrics 71(3): 293-294

N.V.P.avikova; E.A.M.tveeva; Al. V.T.velev; A.B.V.imarn; A.V.R.dakova, 2008: Volcanism of the transitional stage from the Late Devonian island arc to Early Carboniferous rifts in the Southern Urals. Moscow University Geology Bulletin 63(6): 359-367

Flisiak, R.; Boroń-Kaczmarska, A.; Boroń, P., 1991: Selected indices of immunoreactivity dependent on HBV infection in patients with alcoholic liver cirrhosis. The study involved 85 patients with alcohol-produced liver cirrhosis divided into two groups depending on the presence or absence of HBV infection serological markers (HBV+-51; HBV-34). The study was aimed at comparing selected indices of both hum...

Chen, H-Wei.; Zhang, Z.; Huber, E.; Mutumanje, E.; Chao, C-Chung.; Ching, W-Mei., 2011: Kinetics and magnitude of antibody responses against the conserved 47-kilodalton antigen and the variable 56-kilodalton antigen in scrub typhus patients. Western blot analysis of Orientia tsutsugamushi whole-cell lysates with scrub typhus patient sera has identified at least five protein antigens of O. tsutsugamushi with molecular sizes of 22 kDa, 47 kDa, 56 kDa, 58 kDa, and 110 kDa. In this study,...

Luo, Y.; Ling, Y.; Chen, J.; Xu, X.; Chen, C.; Leng, F.; Cheng, J.; Chen, M.; Lu, Z., 2014: A new mutation in the CSB gene in a Chinese patient with mild Cockayne syndrome. Cockayne syndrome (CS) is a rare autosomal recessive genetic disease characterized by growth failure and progressive neurological degeneration. Here we report a mild form of CS patient who was homozygous for the C526T transition resulting in a new...

Jacobs, Enno, 1995: Mycoplasma adherence to host cells Epitope mapping of adhesins. Razin, S , Tully, J G Molecular and diagnostic procedures in mycoplasmology, Vol 1 Molecular characterization 407-413

Liang Y.; Richter F.M.; Watson E.B., 1993: Convection in molten CaO-Al (sub 2) O (sub 3) -SiO (sub 2) due to off-diagonal elements of the diffusion matrix. Eos, Transactions, American Geophysical Union 74(16, Suppl

Cassileth, B.R., 1989: The social implications of mind-body cancer research. Cancer Investigation 7(4): 361-364

Lee, C.Min.; Park, S.; Park, S-Heum.; Jang, Y.Jin.; Kim, S-Joo.; Mok, Y-Jae.; Kim, C-Suk.; Kim, J-Han., 2016: A comparison between two methods for tumor localization during totally laparoscopic distal gastrectomy in patients with gastric cancer. The aim of this study was to compare two methods of tumor localization during totally laparoscopic distal gastrectomy (TLDG) in patients with gastric cancer. From March 2014 to November 2014, patients in whom TLDG had been engaged for middle third...