+ Site Statistics
+ Resolve Accession
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
Submit PDF Full TextSubmit PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

The role of competition, ecotones, and temperature in the elevational distribution of Himalayan birds

, : The role of competition, ecotones, and temperature in the elevational distribution of Himalayan birds. Ecology (): -

NlmCategory="UNASSIGNED">There is clear evidence that species' ranges along environmental gradients are constrained by both biotic and abiotic factors, yet their relative importance in structuring realized distributions remains uncertain. We surveyed breeding bird communities while collecting in situ temperature and vegetation data along five elevational transects in the Himalayas differing in temperature variability, habitat zonation, and bird richness in order to disentangle temperature, habitat, and congeneric competition as mechanisms structuring elevational ranges. Our results from species' abundance models representing these three mechanisms differed markedly from previous, foundational research in the tropics. Contrary to general expectations, we found little evidence for competition as a major determinant of range boundaries, with congeneric species limiting only 12% of ranges. Instead, temperature and habitat were found to structure the majority of species' distributions, limiting 48% and 40% of ranges, respectively. Our results suggest that different mechanisms may structure species ranges in the temperate Himalayas compared to tropical systems. Despite recent evidence suggesting temperate species have broader thermal tolerances than tropical species, our findings reinforce the notion that the abiotic environment has significant control over the distributions of temperate species. This article is protected by copyright. All rights reserved.

(PDF same-day service: $19.90)

Order PDF Full Text


Click here to order any other PDF Full Text

Accession: 059103437

PMID: 27869987

DOI: 10.1002/ecy.1669

PDF Full Text: Submit

Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:

Other references

Fishelson, L., 1970: Spawning behavior of the Cardinal fish, Cheilodipterus lineatus, in Eilat (Gulf of Arabia, Red Sea). Copeia, 370-371

Black, C.A.; Buderer, N.M.; Blaylock, B.; Hogan, B.J., 1999: Comparative study of risk factors for skin breakdown with cervical orthotic devices: Philadelphia and Aspen. To compare risk factors for skin breakdown between Philadelphia and Aspen cervical collars. Crossover design. Twenty healthy volunteers wore Philadelphia and Aspen cervical collars in random order. Occipital pressure, relative skin humidity, and s...

Fazio, B.; Cipolli, P.; Baldassarre, G., 1987: Evaluation of visual evoked potentials in chronic Parkinson disease patients. The P-100 latency of the evoked visual potentials in 20 cases of idiopathic Parkinson's disease were examined. As indicated in earlier studies, P-100 latency was significantly higher in Parkinson patients than in healthy controls. The hypothe...

Hama, Y.; Li, Y.T.; Li, S.C., 1997: Interaction of GM2 activator protein with glycosphingolipids. G-M2 activator protein is a protein cofactor that has been shown to stimulate the enzymatic hydrolysis of both GalNAc and NeuAc from G-M2 (Wu, Y. Y., Lockyer, J. M., Sugiyama, E., Pavlova, N.V., Li, Y.-T., and Li, S.-C. (1994) J. Biol. Chem. 269,...

Ness G. E.; Kelsay M. T.; O. Malley R. T.; Egbert G. D., 1990: Improving marine magnetic anomaly data using either real or synthetic diurnal field corrections and magnetic storm indices. Eos, Transactions, American Geophysical Union 71(43): 1281

Walhagen, K.; Boysen, R.I.; Hearn, M.T.W.; Unger, K.K., 2003: The CEC behaviour of several synthetic peptides related to the activin betaA-betaD subunits. The resolution of several structurally related synthetic peptides, derived from the loop 3 region of the activin betaA-betaD subunits, has been studied using capillary electrochromatography (CEC) with Hypersil n-octadecylsilica as the sorbent. The...

BLACK, R.L.; YIELDING, K.L.; BUNIM, J.J., 1957: Observations on new synthetic antirheumatic steroids and critical evaluation of prednisone therapy in rheumatoid arthritis. Journal of Chronic Diseases 5(6): 751-769

Martin A.H., 1988: Magnetic fields and time dependent effects on development. Pulsed, extremely-low-frequency electromagnetic fields caused a significant increase in abnormalities in the developing chick embryo. The effect was observed when the field was presented during the first 24 h of incubation; no significant effect w...

Azam, M. M.; Amtul Waris; Nahar, N. M., 2005: Prospects and potential of fatty acid methyl esters of some non-traditional seed oils for use as biodiesel in India. Fatty acid profiles of seed oils of 75 plant species having 30% or more fixed oil in their seed/kernel were examined. Saponification number (SN), iodine value (IV) and cetane number (CN) of fatty acid methyl esters of oils were empirically determi...

Fallon, S.James.; Hampshire, A.; Barker, R.A.; Owen, A.M., 2016: Learning to be inflexible: Enhanced attentional biases in Parkinson's disease. Impaired attentional flexibility is considered to be one of the core cognitive deficits in Parkinson's disease (PD). However, the mechanisms that underlie this impairment are contested. Progress in resolving this dispute has also been hindere...