Biotic and abiotic impacts of Double-crested cormorant breeding colonies on forested islands in the southeastern United States

Lafferty, Diana J. R.; Hanson‐Dorr, Katie C.; Prisock, Amanda M.; Dorr, Brian S.

doi:10.1016/j.foreco.2016.03.026

Cited by 13 publications

(40 citation statements)

References 34 publications

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“…By abandoning dead and dying trees and selecting a living tree, the doublecrested cormorants tended to expand breeding sites (Hebert et al 2005). However, in this study area, the Lafferty et al (2016) reported that, although the ratio of live to dead trees used for nesting by the double-crested cormorant varied throughout the breeding area, in general, about 50% of the nest tree were dead. Further, 50% of the nest trees of the great blue herons (Ardea herodias) found breeding along with it were also dead.…”

Section: Discussionmentioning

confidence: 72%

Change in nest site and population size of great cormorants (Phalacrocorax carbo) in relation to different Ardeidae species in inland breeding sites in Korea

Lee

Yi²,

Sung

2019

j ecology environ

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We investigated the changes in the population size and inter-specific space usage for breeding in mixed breeding sites of the great cormorant (Phalacrocorax carbo), grey heron (Ardea cinerea), great egret (Ardea alba modesta) and intermediate egret (Egretta intermedia) in Gammul-myeon, Goesan-gun, Chungcheongbuk-do, South Korea, in 2016-2017. These species bred in two adjacent habitats (site A and site B). The number of breeding pairs of all species and the size of the breeding area at site B increased in 2017. In 2017, great cormorants at site B occupied the breeding sites previously occupied by the other species in 2016, while the grey heron and great egret occupied the sites around the great cormorant breeding site. The heights of nest trees and nests of great cormorant and grey heron did not differ temporally, but these heights in site B were significantly higher than those in site A for great cormorants. For great egrets, these greatly decreased in site B in 2017. Thus, the great cormorant either moved to favourable nest sites for breeding success or selected nest sites used by the herons in the previous year. Further studies of these two possibilities are necessary.

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Section: Discussionmentioning

confidence: 72%

Change in nest site and population size of great cormorants (Phalacrocorax carbo) in relation to different Ardeidae species in inland breeding sites in Korea

Lee

Yi²,

Sung

2019

j ecology environ

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“…Cormorants have caused extensive damage to vegetation where they nest due to excessive guano, associated soil chemistry changes, and physical destruction (Hebert et al 2014;Ayers et al 2015;Lafferty et al 2016; Figure 5). These impacts can be relatively rapid (tree mortality in 3-10 years).…”

Section: Habitat and Co-nesting Speciesmentioning

confidence: 99%

“…Hebert et al (2014) documented significant damage to trees on forested islands associated with cormorant nesting and that vegetation damage can negatively impact co-nesting avian species that are obligate tree nesters. These impacts are not relegated to the cormorant's northern breeding grounds, as Lafferty et al (2016) documented significant impacts to trees and soils on southern breeding colonies. As the vegetation dies, the adaptable cormorant will often continue to nest on downed trees or the ground leading to open areas free of almost all vegetation.…”

Section: Habitat and Co-nesting Speciesmentioning

confidence: 99%

Double‐Crested Cormorants: Too Much of a Good Thing?

Dorr

Fielder

2017

Fisheries

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For centuries, people have viewed double‐crested cormorants Phalacrocorax auritus negatively, and human persecution coupled with environmental contamination severely reduced numbers of cormorants throughout North America. Shifts in paradigms for management of our natural resources resulted in reductions in environmental contaminants and regulatory protection of cormorants, allowing for an amazing population resurgence of this adaptable fish‐eating bird. However, for cormorants, as with some other native wildlife species the populations of which have rebounded due to conservation efforts, there have been cormorant‐societal conflicts with respect to commercial and natural resources such as aquaculture and sport fisheries. Increasing resource conflicts caused cormorants to be a priority with agencies responsible for their management, resulting in development of policy to facilitate addressing stakeholder concerns. Subsequent research and management in regard to cormorant issues have been subject to considerable challenges and debate. In this feature, we discuss the primary resource damage issues associated with cormorants, management efforts and outcomes, what we have learned, and the future with regard to cormorant management.

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“…Namun, disisi lain keberadaan kelelawar menjadi salah satu daya tarik wisatawan karena dapat melihat kelelawar berukuran besar bergelantungan. Hal yang sama ditunjukan oleh Lafferty et al, (2016) yang menyebutkan bahwa keberadaan burung air yang bersarang di pucuk-pucuk pohon memberikan efek negatif terhadap kesehatan pohon tersebut. Namun keberadaan kelelawar juga memberi manfaat sebagai salah satu hewan penyebar biji, sebagai polinator, maupun pemangsa (Martins, 2017).…”

Section: Pengelolaan Yang Memadukan Kebutuhan Manusia Dengan Konservasiunclassified

POTENSI KEANEKARAGAMAN JENIS CAGAR ALAM SITU PANJALU KABUPATEN CIAMIS The Potential of Species Diversity of Nature Reserves Panjalu Lake in Ciamis District.

Rachman¹,

Hani²

2017

j. wasian

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Biotic and abiotic impacts of Double-crested cormorant breeding colonies on forested islands in the southeastern United States

Abstract: 13 (KC Hanson-Dorr), amanda.prisock@weyerhaeuser.com (AM Prisock), 14 brian.s.dorr@aphis.usda.gov (BS Dorr). 15 1 Tel.: +1 919 513 3312 16 2 Tel.: +1 662 325 5489 17 3 Tel.: +1 662 245 5250 18

Cited by 13 publications

References 34 publications

Change in nest site and population size of great cormorants (Phalacrocorax carbo) in relation to different Ardeidae species in inland breeding sites in Korea

Change in nest site and population size of great cormorants (Phalacrocorax carbo) in relation to different Ardeidae species in inland breeding sites in Korea

Double‐Crested Cormorants: Too Much of a Good Thing?

POTENSI KEANEKARAGAMAN JENIS CAGAR ALAM SITU PANJALU KABUPATEN CIAMIS The Potential of Species Diversity of Nature Reserves Panjalu Lake in Ciamis District.

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