How residents behave: home range flexibility and dominance over migrants in a Mediterranean passerine

Morganti, Michelangelo; Assandri, Giacomo; Aguirre, José I.; Ramírez, Álvaro; Caffi, Mario; Pulido, Francisco

doi:10.1016/j.anbehav.2016.10.021

Cited by 19 publications

(20 citation statements)

References 50 publications

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“…Similar to our results, home-ranges in birds have been shown to vary with breeding status, some species reportedly showing an increase in home-range with breeding (Jahn et al 2010, Kolts & McRae 2017, others a decrease (Willey & Van Riper Iii 2014, Morganti et al 2017, and some show no variation between (Winiarski et al 2017). The need to defend nest-sites, coupled with nest attendance and chick provisioning, may constrain movement of breeding Red-capped Larks to areas closer to their nests.…”

Section: Effect Of Weather Evi Invertebrate Biomass and Breeding Onsupporting

confidence: 86%

“…The high cost associated with territorial defence may impose a maximum limit to the area that can be defended (Morganti et al . ).…”

Section: Discussionmentioning

confidence: 97%

“…The need to defend nest-sites, coupled with nest attendance and chick provisioning, may constrain movement of breeding Red-capped Larks to areas closer to their nests. The high cost associated with territorial defence may impose a maximum limit to the area that can be defended (Morganti et al 2017). Table 2.…”

Section: Effect Of Weather Evi Invertebrate Biomass and Breeding Onmentioning

confidence: 99%

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Home‐ranges of tropical Red‐capped Larks are influenced by breeding rather than vegetation, rainfall or invertebrate availability

Mwangi

Klaassen

Muchai

et al. 2019

Ibis

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Home‐range studies have received considerable attention from ecologists but are greatly skewed towards the north temperate areas. Tropical areas offer an ideal setting to tease apart hypotheses about weather, food availability and social interactions as important factors influencing home‐range. In this study, we investigated home‐range and movement patterns of the tropical Red‐capped Lark Callandrella cineria, a year‐round breeding bird with a dynamic social structure. We tracked 56 individuals using radiotransmitters and colour‐ring readings over a 23‐month period. Our objective was to understand year‐round variation in home‐range size in the context of the highly aseasonal and unpredictable variation in weather and resources typical of many equatorial habitats, in addition to the birds’ changing social structure and year‐round breeding. The mean composite monthly home‐range of Red‐capped Larks was 58.0 ha, and the mean individual home‐range size was 19.9 ha, but this varied considerably between individuals. The total number of nests found per month (breeding intensity) best predicted home‐range size of non‐breeding birds, and of breeding and non‐breeding birds combined. We show for the first time that breeding intensity decreases the home‐range size of non‐breeding individuals. Our study also underlines the relevance of conducting more studies in aseasonal tropical areas in order to disentangle effects of weather, food availability and breeding that vary in parallel, peaking simultaneously in most seasonal areas.

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Section: Effect Of Weather Evi Invertebrate Biomass and Breeding Onsupporting

confidence: 86%

“…The high cost associated with territorial defence may impose a maximum limit to the area that can be defended (Morganti et al . ).…”

Section: Discussionmentioning

confidence: 97%

Section: Effect Of Weather Evi Invertebrate Biomass and Breeding Onmentioning

confidence: 99%

See 1 more Smart Citation

Home‐ranges of tropical Red‐capped Larks are influenced by breeding rather than vegetation, rainfall or invertebrate availability

Mwangi

Klaassen

Muchai

et al. 2019

Ibis

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“…The exponentially increasing fitness cost of migration in this species may be due to the importance of territory quality and the prior residency effect. The maintenance of breeding home-ranges throughout the year in resident blackcaps is in line with this idea [46]. Identifying the factors that contribute to the form of the fitness function will allow us to understand the adaptive process and to make specific predictions about the rate of change and which fraction of a population will benefit most from changing environmental conditions.…”

Section: Discussionmentioning

confidence: 87%

How migratory populations become resident

Zoeten

Pulido

2020

Proc. R. Soc. B.

Self Cite

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Migratory behaviour is rapidly changing in response to recent environmental changes, yet it is difficult to predict how migration will evolve in the future. To understand what determines the rate of adaptive evolutionary change in migratory behaviour, we simulated the evolution of residency using an individual-based threshold model, which allows for variation in selection, number of genes, environmental effects and assortative mating. Our model indicates that the recent reduction in migratory activity found in a population of Eurasian blackcaps (Sylvia atricapilla) is only compatible with this trait being under strong directional selection, in which residents have the highest fitness and fitness declines exponentially with migration distance. All other factors had minor effects on the adaptive response. Under this form of selection, a completely migratory population will become partially migratory in 6 and completely resident in 98 generations, demonstrating the persistence of partial migration, even under strong directional selection. Resident populations will preserve large amounts of cryptic genetic variation, particularly if migration is controlled by a large number of genes with small effects. This model can be used to realistically simulate the evolution of any threshold trait, including semi-continuous traits like migration, for predicting evolutionary response to natural selection in the wild.

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“…Other studies have evaluated interspecific competition between resident and migrant birds within their breeding grounds (Ahola, Laaksonen, Eeva, & Lehikoinen, ; Forsman, Thomson, & Seppänen, ; Wittwer, RB, Caplat, et al, ). Intraspecific competition in species with both resident and migratory populations has also been studied, confirming that resident individuals seem to have some advantages over newcomers (De la Hera, Pérez‐Tris, & Tellería, ; Fudickar, Schmidt, Hau, Quetting, & Partecke, ; Ketterson & Nolan, ; Morganti, Assandri, Aguirre, et al, ). However, the possibility that migratory birds may have a negative impact on resident bird populations within wintering grounds has not been fully explored (but see Bensusan, Shorrocks, & Hamer, ).…”

Section: Introductionmentioning

confidence: 87%

Demographic and spatial responses of resident bird populations to the arrival of migratory birds within an urban environment

et al. 2019

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Long-distance migration allows many bird species to overcome the severe climatic changes that occur in seasonal environments. Migration is highly demanding, and given its cyclical nature, we currently know that it has substantial effects on the population parameters of migratory birds during both breeding and wintering seasons. However, the potential effects of the presence of migratory birds in their wintering grounds on populations of resident birds have remain largely unexplored. Here, we propose the hypothesis that migratory birds negatively affect the habitat occupancy and population abundance of resident birds because of the arrival of numerous individuals during the most limiting months of the year. Here, we studied different species of migratory and resident birds that coexist during winter in an urban ecological reserve located within Mexico City. We used single-species multiseason occupancy models, two-species occupancy models, and distance sampling techniques to evaluate changes in occupancy and population density of resident bird species during three consecutive winters. We found an aggregation pattern between two resident species (Psaltriparus minimus and Thryomanes bewickii) with three migratory warblers (Cardellina pusilla, Setophaga coronata and Setophaga townsendi). Thus, our results provide evidence of the formation of mixed-species flocks in our study area. We also conclude that resident birds experience different demographic and behavioral processes during winter that not necessarily result from interspecific interactions with migratory birds. K E Y W O R D Sdistance sampling, long-distance migration, occupancy models, population density, resident birds

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How residents behave: home range flexibility and dominance over migrants in a Mediterranean passerine

Cited by 19 publications

References 50 publications

Home‐ranges of tropical Red‐capped Larks are influenced by breeding rather than vegetation, rainfall or invertebrate availability

Home‐ranges of tropical Red‐capped Larks are influenced by breeding rather than vegetation, rainfall or invertebrate availability

How migratory populations become resident

Demographic and spatial responses of resident bird populations to the arrival of migratory birds within an urban environment

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