Bird traits in urban–rural gradients: how many functional groups are there?

Leveau, Lucas M.

doi:10.1007/s10336-012-0928-x

Cited by 74 publications

(50 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Moreover, any relationship between the abundance and number of species may be influenced by resource availability, such as food and breeding sites, which are favoured on larger surfaces (Suhonen and Jokimäki, 1988). As observed elsewhere from SE Asia to South America (Leveau, 2013), resident bird species dominate urban parks: in our case up to 76%. However, although granivore species tend to be most abundant in more urbanised areas, only 43% of this trophic group, as compared with 38% of insectivorous species, was detected in Salamanca.…”

Section: Species Richnesssupporting

confidence: 80%

Birds and small urban parks: a study in a high plateau city

Peris

Montelongo²

2014

Turk J Zool

View full text Add to dashboard Cite

A manganese(II) complex of 2,2'-bipyridine (bipy) was synthesized and characterized by X-ray diffraction, IR, and UV-vis spectroscopy. The activity of the complex was tested for oxidation of benzyl alcohols using t -BuOOH as an oxidant in organic solvents and in an organic/water biphasic system (hexane/H 2 O, toluene/H 2 O). The effect of solvent, temperature, oxidant, and some additives (KBr, N(C 4 H 9) Br, and N-bromosuccinimide) on the oxidation of benzyl alcohol is reported. The results show that benzyl alcohol was selectively converted to benzaldehyde in 71.9% yield within 4 h in acetonitrile. Control experiments performed without catalyst and the corresponding metal salt as catalyst produced no benzaldehyde in the reaction mixture. Mild reaction conditions, high yields of the products, short reaction time, no further oxidation to the corresponding carboxylic acids, high selectivity, and inexpensive reagents make this catalytic system a useful oxidation method for benzyl alcohol.

show abstract

Section: Species Richnesssupporting

confidence: 80%

Birds and small urban parks: a study in a high plateau city

Peris

Montelongo²

2014

Turk J Zool

View full text Add to dashboard Cite

show abstract

“…Fourth, most species that occur in urban environments have special traits (Conole & Kirkpatrick 2001: Leveau 2013Jokimäki et al 2016). This observation leads to the prediction that generalist species with broad niche requirements will occur in most sites ('core species'), whereas specialist species will only occur in a few sites ('satellite species').…”

mentioning

confidence: 99%

Urbanization and species occupancy frequency distribution patterns in core zone areas of European towns

Jokimäki¹,

Suhonen

Kaisanlahti‐Jokimäki³

2016

European Journal of Ecology

View full text Add to dashboard Cite

More and more of the globe is becoming urbanized. Thus, characterizing the distribution and abundance of species occupying different towns is critically important. The primary aim of this study was to examine the effect of urbanization and latitude on the patterns of species occupancy frequency distribution (SOFD) in urban core zones of European towns (38 towns) along a 3850-km latitudinal gradient. We determined which of the three most common distributional models (unimodal-satellite dominant, bimodal symmetrical, and bimodal asymmetrical) provides the best fit for urban bird communities using the AICc-model selection procedure. Our pooled data exhibited a unimodal-satellite SOFD pattern. This result is inconsistent with the results from previous studies that have been conducted in more natural habitats, where data have mostly exhibited a bimodal SOFD pattern. Large-sized towns exhibited a bimodal symmetric pattern, whereas smaller-sized towns followed a unimodal- -satellite dominated SOFD pattern. The difference in environmental diversity is the most plausible explanation for this observation because habitat diversity of the study plots decreased as urbanization increased. Southern towns exhibited unimodal satellite SOFD patterns, central European towns exhibited bimodal symmetric, and northern towns exhibited bimodal asymmetric SOFD patterns. One explanation for this observation is that urbanization is a more recent phenomenon in the north than in the south. Therefore, more satellite species are found in northern towns than in southern towns. We found that core species in European towns are widely distributed, and their regional population sizes are large. Our results indicated that earlier urbanized species are more common in towns than the species that have urbanized later. We concluded that both the traits of bird species and characteristics of towns modified the SOFD patterns of urban-breeding birds. In the future, it would be interesting to study how the urban history impacts SOFD patterns and if the SOFD patterns of wintering and breeding assemblages are the same.

show abstract

“…In general, bird communities in central Argentina show an increase in richness and abundance in the spring and summer partially due to the arrival of migratory species (Cueto and Lopez de Casenave 2000b;Isacch and Martinez 2001;Isacch et al 2003;Codesido et al 2008;Leveau and Leveau 2011). However, urban environments may negatively impact migratory species because of low availability of nesting sites and food may be limited (Croci et al 2008;Marzluff and Rodewald 2008;MacGregor-Fors et al 2010;Leveau 2013). Our results show that community attributes of urban bird assemblages have lower seasonal variability than farmland assemblages.…”

Section: Seasonal Variability In Bird Communitiesmentioning

confidence: 58%

“…Surveys were conducted by the same observer (LML) and lasted 3 to 5 min in each transect. For more information about the location of transects see Leveau (2013).…”

Section: Bird Surveysmentioning

confidence: 99%

Urbanization and the temporal homogenization of bird communities: a case study in central Argentina

2015

Self Cite

View full text Add to dashboard Cite

Urban expansion to rural and natural areas is a global process. Although several studies have analyzed bird community attributes along urbanization gradients, little is known on the impact of urbanization on temporal variability of bird communities. Rural areas show higher seasonal and interannual variability in environmental conditions and resources than do urban areas. Our objectives are to determine how seasonal and interannual variability in bird assemblages change along an urban-rural gradient, and how interannual variability in bird assemblages changes with season. Low seasonal and interannual variability of bird communities is expected in urbanized areas that show a process of temporal homogenization. Seasonal variability of bird richness and abundance were positively related to the percent cover of crops. Seasonal and interannual variability in community composition were positively related to coverage of herbaceous vegetation and crops, and negatively related to coverage of impervious areas. Interannual variability of bird richness and abundance were highest during the non-breeding season. We conclude that highly urbanized areas allow bird communities to have a more stable composition over time, promoting temporal homogenization. Our results emphasize that urbanization alters the temporal dynamics of resources and, therefore, the temporal variability of bird communities.

show abstract

Bird traits in urban–rural gradients: how many functional groups are there?

Cited by 74 publications

References 39 publications

Birds and small urban parks: a study in a high plateau city

Birds and small urban parks: a study in a high plateau city

Urbanization and species occupancy frequency distribution patterns in core zone areas of European towns

Urbanization and the temporal homogenization of bird communities: a case study in central Argentina

Contact Info

Product

Resources

About