Predicting the seasonal dynamics of bird communities along an urban-rural gradient using NDVI

Leveau, Lucas M.; Isla, Federico Ignacio; Bellocq, M. Isabel

doi:10.1016/j.landurbplan.2018.04.007

Cited by 45 publications

(24 citation statements)

References 68 publications

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“…Parts of natural and farmland-related habitats, including tall grassland, river, stream, dry farmland, orchard, and abandoned fields had a positive effect on bird species richness. These environments reflected a higher food availability to promote bird species richness 25 ; the higher food availability in the orchard habitat had the highest effect on bird species richness and the seasonal change in primary productivity altered bird species richness 26 . In the study of Waltert et al, farmland and forestland had a similar bird species richness, and frugivorous and omnivorous bird species richness did not differ between these habitats 27 .…”

Section: Discussionmentioning

confidence: 99%

Different Habitat Types Affect Bird Richness and Evenness

Fan²,

Ko³

2020

Sci Rep

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More studies are needed on the mechanism and effective prediction of bird diversity in various habitats. The primary purpose of this study was to explore the difference in the species richness and evenness of various habitats. The secondary purpose was to explore which habitat types and compositions predict a high bird diversity. The 2010-2016 Taiwan Breeding Bird Survey was used to analyze the relationship between landscape habitat and bird ecology. Landscape habitat type was divided into seven categories and 26 sub-types: forestland, farmland, grassland, freshwater wetland, aquaculture pond and saltpan, coastland, and building area. Four ecological indexes were used: the number of bird individuals, the number of species, the Margalef Richness Index, and the Pielou Evenness Index. The result indicated that forestland decreased bird numbers, except in a windbreak forest. Natural and farmland-related habitats increased bird species richness. Similarly, the natural habitat increased species evenness. Urban greenspace could not replace the effect of forestland on species richness and evenness. Conifer forest, bamboo forest, windbreak forest, mixed tree, tall grassland, and orchard were important habitats for promoting higher species richness and evenness.The relationship between various environments and bird diversity has been a critical issue. A large number of studies have explored the variety of bird diversity in urban and rural areas 1-8 , farmland 9-12 , and forestland [13][14][15][16] . Some studies indicated that a higher ecological diversity not only benefits species survival but is also an important indicator of human well-being 17,18 . The promotion of bird diversity is a useful method for generating human psychological benefits 19 . Therefore, the mechanism and effective prediction of bird diversity in various habitats should be understood.The mechanisms relating to various habitats and bird diversity with human activity are still not clear. Species richness and species evenness are two common concepts to measure species diversity 20 . The number of breeding bird species increases from urban to suburban, rural, and natural areas 2,4,12,21 . A few studies indicated that urbanization did not reduce bird species richness (i.e., the number of bird species) due to an abundant food supply, but rather increased the number of birds in a few dominant bird species 22 . One of the main characteristics of urban areas is the numerical dominance of a few abundant bird species 21 , which means a lower species evenness. This observation corresponds to the primary purpose of the study: species evenness may demonstrate a dissimilarity in bird diversity between natural and urban environments. Few studies have separately explored bird species richness and evenness to answer this question in various bird habitats.Some habitat types and characteristics have been studied and have shown positive results for higher bird diversity. The presence of forest is a positive environmental characteristic for bird diversity in various envi...

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Section: Discussionmentioning

confidence: 99%

Different Habitat Types Affect Bird Richness and Evenness

Fan²,

Ko³

2020

Sci Rep

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“…Although several studies have shown the importance of primary productivity (Haedo et al 2017, Leveau et al 2018, Filloy et al 2018) and habitat diversity (Leveau 2013b) determining the spatial variation of species richness in urban areas, this is the first case study where both variables are considered in the context of species-energy relationships.…”

Section: Discussionmentioning

confidence: 99%

“…Although several studies have proposed theoretical models of bird richness response to urbanization (Lepczyk et al 2008, Filloy et al 2018), species-energy relationships have been scarcely studied and, to my knowledge, several hypotheses have never been explored simultaneously in urban environments yet. Unlike natural systems, in which primary productivity and habitat diversity are usually correlated (Hurlbert 2004), urban-rural gradients in central Argentina allows to separate the effects of these variables because agricultural areas can have a high primary productivity but a low habitat heterogeneity due to crops dominance (Leveau 2013a, Leveau et al 2018). Due to bird richness has been shown an unimodal relationship with urbanization in the study area Leveau 2004, 2005), increasing at intermediate levels of urbanization that have both high primary productivity and habitat diversity (Leveau 2013a, Leveau et al 2018, I expect that the NP hypothesis will explain more clearly the spatial variation of bird richness in central Argentina.…”

Section: Introductionmentioning

confidence: 99%

“…Unlike natural systems, in which primary productivity and habitat diversity are usually correlated (Hurlbert 2004), urban-rural gradients in central Argentina allows to separate the effects of these variables because agricultural areas can have a high primary productivity but a low habitat heterogeneity due to crops dominance (Leveau 2013a, Leveau et al 2018). Due to bird richness has been shown an unimodal relationship with urbanization in the study area Leveau 2004, 2005), increasing at intermediate levels of urbanization that have both high primary productivity and habitat diversity (Leveau 2013a, Leveau et al 2018, I expect that the NP hypothesis will explain more clearly the spatial variation of bird richness in central Argentina. On the other hand, Path analyses is a powerful statistical approach in testing and developing the structural hypothesis with both indirect and direct causal effects (Fan et al 2016), which has been used in studies of speciesenergy relations (Jonsson et al 2011, Elo et al 2012, McCain et al 2018.…”

Section: Introductionmentioning

confidence: 99%

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Urbanization and species-energy relationships

2018

Preprint

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Species-energy relationships (SER) have been used scarcely to predict responses of biodiversity to changes in land use. In this work, two hypothesis of the SER were tested on bird communities along urbanization gradients: the increasing population size (IPS) and the niche position (NP) hypotheses. The IPS hypothesis states that sites with more primary productivity have more individuals, decreasing the probability of extinction and increasing species richness. The HPN predicts that sites with greater primary productivity and environmental heterogeneity allow the availability of a greater variety of resources and the presence of specialist species, thus increasing species richness. The hypothesis of habitat heterogeneity was evaluated by which more complex habitats provide more variety of resources and greater species richness. Birds were counted along three urban-rural gradients in the Pampean region of Argentina during the breeding season. The productive energy was measured from the NDVI and the environmental heterogeneity through the Shannon-Wiener diversity index, calculated with the percentage coverage of different substrates. Bird richness and habitat diversity were higher at intermediate levels of urbanization, while primary productivity had a negative relationship with urbanization. Although there was a positive relationship between bird richness and abundance, there was no positive relationship between bird abundance and primary productivity. Bird richness showed a positive relationship with habitat diversity and primary productivity; although path analysis revealed that the habitat diversity increased bird richness through an increase of bird abundance. The NP hypothesis was the most consistent to predict the bird richness along urban-rural gradients.

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“…79-98 landscape transformation, which could indicate about possible future changes in other taxonomic groups and whole ecosystems, biogeographical changes and synurbization mechanisms. Also, annual dynamics, stability of community structure and dynamics of diversity level show the stability of ecosystems and primary productivity [23], according to the species-energy hypothesis [12]. This can show possible deficiency in urban greenery management -a problem that is being acutely felt in the Ukrainian cities.…”

Section: Introductionmentioning

confidence: 98%

Annual dynamics of bird communities in urban parks in Lviv, Ukraine: preliminary analysis of diversity and composition variability

Dubovyk

2019

Biol. Stud.

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Species and numeric composition of bird communities were analyzed in parks of Lviv based on results of monthly censuses on 20 linear transects on eight study plots. During the year, 79 bird species that belong to eight taxonomic orders were registered Birds' diversity was assessed by species number and Simpson index and it varies throu ghout the year and denotes higher level during the breeding season. Similarly, birds' density is the highest in breeding season, but it also has a less expressed peak in winter period. This shows that biotopical preferences to be presented in urban greenery of parti cular birds are especially notable only while breeding, but in non-breeding season those birds stay resident in scale of the city though disperse in other habitat types. Between-months, stability of species composition (assessed by Jaccard index) and numeric composition (by Bray-Curtis index) was analyzed. Communities were the most stable during the breeding season as birds are related to their nesting sites. According to zoogeographic classification, European species dominate during all months. Siberian, Transpalearctic and Medite rranean species also play role in forming of the community structure. The main food resources type which compensates energy demands of birds during the breeding season is inver te brates; this shows the importance of birds in controlling the abundance of invertebrates in urban ecosystems. Seeds are also important food resour ce types, especially during the non-breeding period. Abundance variability of part of spe cies is related with season. Three main groups of these species were defined: breeding migrants (mainly songbirds such as Fringilla coelebs, Erithacus rubecula, Sylvia atricapilla, Phylloscopus collybita etc., also Columba palumbus), wintering migrants (Spinus spinus, Turdus viscivorus, Bombycilla garrulus, Pyrrhula pyrrhula) and residents (typical synanthropic species whose numbers vary: Turdus merula, Coccothraustes coccothraustes, Troglodytes 80 O. Dubovyk ISSN 1996-4536 (print) • ISSN 2311-0783 (on-line) • Біологічні Студії / Studia Biologica • 2019 • Том 13/№2 • С. 79-98 troglodytes, Cyanistes caeruleus etc.). The last ones, probably, migrate in non-breeding seasons to other habitat types, that can explain their abundance variability. (on-line) • Біологічні Студії / Studia Biologica • 2019 • Том 13/№2 • С. 79-98Osvytsky Gai park is located in the southern suburbs near the Zubra river. A = 82 ha, n t = 2. Acer platanoides, Alnus glutinosa, Quercus robur and Fraxinus excelsior are the most common.Bird surveys. Bird surveys were conducted on each linear transect every month during a period from December 2017 to November 2018. Linear transects method was chosen and data obtained using this method are the most representative concerning the whole community structure [18,3]. Birds were located at the same distance (50 m on both sides from observer) in all months. Surveys were carried out during 20-30 min time period on each transect in morning hours of days without strong wind, rain, o...

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Predicting the seasonal dynamics of bird communities along an urban-rural gradient using NDVI

Cited by 45 publications

References 68 publications

Different Habitat Types Affect Bird Richness and Evenness

Different Habitat Types Affect Bird Richness and Evenness

Urbanization and species-energy relationships

Annual dynamics of bird communities in urban parks in Lviv, Ukraine: preliminary analysis of diversity and composition variability

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