Influence of perennial colonies of piscivorous birds on soil nutrient contents in a temperate humid climate

Breuning‐Madsen, Henrik; Ehlers-Koch, Camilla; Gregersen, J.; Løjtnant, Christina L.

doi:10.1080/00167223.2010.10669494

Cited by 26 publications

(24 citation statements)

References 10 publications

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“…Numerous studies have already demonstrated that Cormorants can largely affect the concentrations of nutrients in soils (Hobara et al, 2001;Ligęza and Smal, 2003;Hobara et al, 2005;Osono et al, 2006;Breuning-Madsen et al, 2010), and trigger the alterations in terrestrial vegetation (Hebert et al, 2005) and communities of soil invertebrates (Kolb et al 2010) under roosting colonies. Our study partially corroborates these findings and demonstrates that Cormorants may be responsible for profound changes in colonized freshwater ecosystems.…”

Section: Discussionmentioning

confidence: 99%

Changes in physico-chemical conditions and macrophyte abundance in a shallow soft-water lake mediated by a Great Cormorant roosting colony

2014

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Section: Discussionmentioning

confidence: 99%

Changes in physico-chemical conditions and macrophyte abundance in a shallow soft-water lake mediated by a Great Cormorant roosting colony

2014

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“…Apart from N and P, the cormorant colonies deliver significant amounts of carbon (Breuning-Madsen et al, 2010;Klimaszyk & Joniak, 2011) and potassium (Ligęza & Smal, 2003). Both elements are utilized by floral and microbial communities in the upper layers but they may also infiltrate and accumulate in the deeper soil horizons.…”

Section: Soil Chemistrymentioning

confidence: 99%

“…The intensity of this process depends, however, on variables such as pH, soil moisture and temperature (Loder et al, 1996). As cormorant faeces also acidify soils, volatilization is of lower importance (Kameda et al, 2000;Breuning-Madsen et al, 2010) and transformation to nitrates occurs instead (Hobara et al, 2001). The nitrates of faecal origin can accumulate not only in the top layer but also at considerable depths (Ligęza & Smal, 2003).…”

Section: Soil Chemistrymentioning

confidence: 99%

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The complexity of ecological impacts induced by great cormorants

Klimaszyk

Rzymski

2015

Hydrobiologia

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Following decades of global extermination, the general population of the great cormorant (Phalacrocorax carbo L.) is on the rise. The lack of regular predators, highly skilled fish rapacity, rapid metabolism, significant rate of excretion and ability to form large nesting colonies on relatively small areas lead to numerous environmental consequences of cormorant presence. Here we comprehensively review the occurrence and distribution of this species and, in particular, its multi-faceted impact on terrestrial and aquatic ecosystems and the main routes through which these impacts are being manifested. The bird-induced chemical loading and its biological and ecological consequences, and the effects on microbial pollution and pathogen dispersion are discussed in particular. The need for further investigation to fully elucidate particular effects is stressed throughout the paper. It is concluded that the environmental effects of great cormorants are rather complex, can lead to serious ecosystem modifications and that the presence of these birds should be taken into consideration in ecological assessment and monitoring.

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“…In a colony of tree-nesting colonial birds, the main pressure on the environment is the input of nutrients, mainly nitrogen, phosphorus, and organic carbon (Breuning-Madsen et al, 2010). Depending on the N input from birds in nonproductive ecosystems, plants may be more productive (Anderson and Polis, 1999), resulting also in an increase in abundance of insects, spiders, and lizards (Polis and Hurd, 1996).…”

Section: Discussionmentioning

confidence: 99%

Mammals under a colony of great cormorants: population structure andbody condition of yellow-necked mice

Balčiauskas¹,

Balčiauskienė²,

Jasiulionis³

2015

Turk J Zool

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Investigations into small mammals within the territory of a breeding colony of great cormorants (Phalacrocorax carbo sinensis), carried out in 2011-2014 near Juodkrantė (West Lithuania), demonstrated the colony's impact on the dominant rodent, yellow-necked mouse (Apodemus flavicollis). The age and sex structure of the sampled mice (n = 432), along with body weight, body condition index, and residuals from the linear regression, were used to analyse data from five zones of the colony and the surrounding forest. We found that in the most active zones of the cormorant colony, the age structure of the population was tilted towards a prevalence of juveniles, while sex structure was towards a prevalence of males (P < 0.0001). Despite males being significantly longer in body and heavier, body condition index was the same in both sexes. The effect of the zone of the colony was confirmed for body weight and its residuals; body length and body condition index (main effects ANOVA) were negative in the zones where cormorants were nesting actively.

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Influence of perennial colonies of piscivorous birds on soil nutrient contents in a temperate humid climate

Cited by 26 publications

References 10 publications

Changes in physico-chemical conditions and macrophyte abundance in a shallow soft-water lake mediated by a Great Cormorant roosting colony

Changes in physico-chemical conditions and macrophyte abundance in a shallow soft-water lake mediated by a Great Cormorant roosting colony

The complexity of ecological impacts induced by great cormorants

Mammals under a colony of great cormorants: population structure andbody condition of yellow-necked mice

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