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001-es BibID:	BIBFORM115239
035-os BibID:	(cikkazonosító)1196075 (WoS)001090663800001 (Scopus)85174942474
Első szerző:	Benmazouz, Isma (veterinarian)
Cím:	Morphological changes in hooded crows (Corvus cornix) related to urbanization / Isma Benmazouz, Jukka Jokimäki, Lajos Juhász, Marja-Liisa Kaisanlahti-Jokimäki, Petra Paládi, Gábor Kardos, Szabolcs Lengyel, László Kövér
Dátum:	2023
ISSN:	2296-701X
Megjegyzések:	Introduction: Urbanization has led to a recent surge of interest in urban biodiversity, and wildlife responses to urban environments have become a hot topic in environmental sciences and biodiversity conservation. However, adaptations to urbanization and the factors driving them are less understood.Methodology: We studied possible morphological adaptations to urban environments by comparing body size and condition of adult and post-fledging juvenile Hooded Crows (Corvus cornix), a bird species that has recently colonised cities in eastern Europe, between two urban and two rural populations, between two different-sized cities and between locations within one city in Hungary.Results: Adult crows from the rural cropland-woodland area were lighter and in poorer condition than crows from the rural grassland area or those from the medium-sized city. There were no differences in morphological traits of adults or juveniles between the large and the medium-sized cities. The comparison of multiple trapping locations within the city of Debrecen showed that juveniles in the Zoo area were larger, heavier, and in better condition than individuals in the other locations and that adults in the Zoo had longer wings and tarsi than adults in other locations. Our results indicated that urbanized Hooded Crows showed some morphological changes to live in urban environments, but we did not find large-scale, consistent differences between urban and rural areas. However, we found significant variation within one city.Discussion: Our results suggest that urban-rural environmental differences may be mediated by local factors, of which the year-round availability of anthropogenic food is fundamental. Such food is widely available in cities, although its quality may be suboptimal for bird development. Our study suggests that the variation in body size variables is probably more site-dependent than gradient-dependent and shows that documenting wildlife adaptations to urban environments requires multiple spatial scales ranging from regional to local (within-city) scales.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk adaptation anthropogenic food body condition city covid heat island humanwildlife conflict urban bird
Megjelenés:	Frontiers in Ecology and Evolution. - 11 (2023), p. 1-17. -
További szerzők:	Jokimäki, Jukka Juhász Lajos (1956-) (biológia-földrajz szakos tanár) Kaisanlahti-Jokimäki, Marja-Liisa Paládi Petra (1995-) Kardos Gábor (1974-) (szakorvos, klinikai mikrobiológus) Lengyel Szabolcs (1971-) (biológus) Kövér László (1985-) (városökológia, városi vadgazdálkodás)
Pályázati támogatás:	SH-00355-004/2019 Egyéb K 134931 OTKA TKP2021-NKTA-32 Egyéb
Internet cím:	DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM085301
035-os BibID:	(WOS)000498482500001 (Scopus)85075711149
Első szerző:	Kövér László (városökológia, városi vadgazdálkodás)
Cím:	Why do zoos attract crows? A comparative study from Europe and Asia / László Kövér, Szabolcs Lengyel, Makiko Takenaka, Alice Kirchmeir, Florian Uhl, Rachael Miller, Christine Schwab
Dátum:	2019
ISSN:	2045-7758
Megjegyzések:	Crows have successfully colonized many cities, and urban zoos have been important in this process. To evaluate why zoos attract crows, we quantified crow numbers and behavior in three zoos in Europe (Debrecen, Edinburgh, Vienna) and one in Asia (Sapporo). Data were collected in 445 surveys over 297 days in summer 2014 and winter 2014-2015. We found that crow numbers were highest in Vienna, intermediate in Debrecen and Edinburgh and lowest in Sapporo, increased significantly from summer to winter (Debrecen, Edinburgh, Vienna), and from mornings to afternoons (Debrecen, Sapporo, Vienna), and were higher in sunny weather than in cloudy weather with precipitation and when visitor numbers were low (Debrecen, Vienna). The crows' use of natural food was highest in Vienna, intermediate in Edinburgh and Sapporo, and low in Debrecen. The use of anthropogenic food was high in Debrecen and Sapporo, where the availability of open grassy areas typically used by crows for natural foraging was low. In Sapporo, food availability was more limited than in other zoos, resulting in strong territoriality and few crows in summer, which decreased further in winter. Our study indicates that crows are primarily attracted to zoos by food availability and secondarily by breeding opportunities and that the relative importance of natural versus anthropogenic food sources may vary with zoo habitat structure. Our study draws attention to a previously overlooked role of zoos in urban biodiversity conservation. It may also provide useful information for the management of crow populations, if necessary, and for the planning of urban areas.
Tárgyszavak:	Agrártudományok Erdészeti és vadgazdálkodási tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk adaptation artificial food city planning Corvidae pest management urban ecology
Megjelenés:	Ecology and Evolution. - 9 : 24 (2019), p. 14465-14475. -
További szerzők:	Lengyel Szabolcs (1971-) (biológus) Takenaka, Makiko Kirchmeir, Alice Uhl, Florian Miller, Rachael Schwab, Christine
Pályázati támogatás:	OTKA K106133 OTKA GINOP 2.3.3?15.2016.00019 GINOP
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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