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The range, abundance and habitat of Hinde's Babbler Turdoides hindei: fine-scale changes in abundance during 2000-2011 reflect temporal variation in scrub cover

Research output: Contribution to journalArticlepeer-review

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The range, abundance and habitat of Hinde's Babbler Turdoides hindei : fine-scale changes in abundance during 2000-2011 reflect temporal variation in scrub cover. / Shaw, P.; Njoroge, P.; Otieno, V.; Mlamba, E.

In: Bird Conservation International, Vol. 24, No. 4, 19.12.2014, p. 453-465.

Research output: Contribution to journalArticlepeer-review

Harvard

Shaw, P, Njoroge, P, Otieno, V & Mlamba, E 2014, 'The range, abundance and habitat of Hinde's Babbler Turdoides hindei: fine-scale changes in abundance during 2000-2011 reflect temporal variation in scrub cover', Bird Conservation International, vol. 24, no. 4, pp. 453-465. https://doi.org/10.1017/S0959270913000579

APA

Shaw, P., Njoroge, P., Otieno, V., & Mlamba, E. (2014). The range, abundance and habitat of Hinde's Babbler Turdoides hindei: fine-scale changes in abundance during 2000-2011 reflect temporal variation in scrub cover. Bird Conservation International, 24(4), 453-465. https://doi.org/10.1017/S0959270913000579

Vancouver

Shaw P, Njoroge P, Otieno V, Mlamba E. The range, abundance and habitat of Hinde's Babbler Turdoides hindei: fine-scale changes in abundance during 2000-2011 reflect temporal variation in scrub cover. Bird Conservation International. 2014 Dec 19;24(4):453-465. https://doi.org/10.1017/S0959270913000579

Author

Shaw, P. ; Njoroge, P. ; Otieno, V. ; Mlamba, E. / The range, abundance and habitat of Hinde's Babbler Turdoides hindei : fine-scale changes in abundance during 2000-2011 reflect temporal variation in scrub cover. In: Bird Conservation International. 2014 ; Vol. 24, No. 4. pp. 453-465.

Bibtex - Download

@article{8327fd72afa64b5bb8db80ecd145b624,
title = "The range, abundance and habitat of Hinde's Babbler Turdoides hindei: fine-scale changes in abundance during 2000-2011 reflect temporal variation in scrub cover",
abstract = "In developing countries, 'land sparing' may be more effective than 'land sharing' in partially mitigating the impacts of farming on bird species diversity. We examined the pattern of change in the global and local distribution of Hinde's Babbler Turdoides hindei, a 'Vulnerable' Kenyan endemic whose local abundance is dependent on a passive form of land sharing, in which farmland is left fallow or abandoned, enabling Lantana scrub to colonise. In 2011 we assessed the species' global range and resurveyed three IBAs, surveyed previously in 2000-2001, to determine whether fine-scale changes in abundance reflected temporal changes in habitat quality. Although the babbler's known range increased between 1900-1970 and 1991-2011, we suggest that this apparent expansion largely reflects an improved knowledge base, and that several recently discovered sites are likely to have been overlooked in the past. In combination, the three IBAs surveyed in 2000-2001 and 2011 showed little net change in the number of individuals (+1.3%) or groups (-3.8%) encountered, despite a 68% decline in the number individuals recorded at one site. Within 1-km transect sections there was a positive correlation between change in Hinde's Babbler abundance and change in the amount of scrub cover available, such that a reduction in scrub cover of 22 and 6 percentage points, respectively, was associated with the loss of one group or one individual. The availability of scrub cover was dependent mainly on the amount land left uncultivated, perhaps in response to changes in the value of coffee and other crops. Since the babbler's abundance thus currently depends mainly on land sharing by default, rather than by design, we suggest that a more proactive approach, involving land purchase or payments for land set aside, might help to secure its future.",
keywords = "Demography, Range, Habitat change, Land sharing, Lantana",
author = "P. Shaw and P. Njoroge and V. Otieno and E. Mlamba",
note = "We are extremely grateful to the British Ornithologists{\textquoteright} Union and the African Bird Club Conservation Fund, which generously co-funded fieldwork costs during 2011. ",
year = "2014",
month = dec,
day = "19",
doi = "10.1017/S0959270913000579",
language = "English",
volume = "24",
pages = "453--465",
journal = "Bird Conservation International",
issn = "0959-2709",
publisher = "Cambridge University Press",
number = "4",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - The range, abundance and habitat of Hinde's Babbler Turdoides hindei

T2 - fine-scale changes in abundance during 2000-2011 reflect temporal variation in scrub cover

AU - Shaw, P.

AU - Njoroge, P.

AU - Otieno, V.

AU - Mlamba, E.

N1 - We are extremely grateful to the British Ornithologists’ Union and the African Bird Club Conservation Fund, which generously co-funded fieldwork costs during 2011.

PY - 2014/12/19

Y1 - 2014/12/19

N2 - In developing countries, 'land sparing' may be more effective than 'land sharing' in partially mitigating the impacts of farming on bird species diversity. We examined the pattern of change in the global and local distribution of Hinde's Babbler Turdoides hindei, a 'Vulnerable' Kenyan endemic whose local abundance is dependent on a passive form of land sharing, in which farmland is left fallow or abandoned, enabling Lantana scrub to colonise. In 2011 we assessed the species' global range and resurveyed three IBAs, surveyed previously in 2000-2001, to determine whether fine-scale changes in abundance reflected temporal changes in habitat quality. Although the babbler's known range increased between 1900-1970 and 1991-2011, we suggest that this apparent expansion largely reflects an improved knowledge base, and that several recently discovered sites are likely to have been overlooked in the past. In combination, the three IBAs surveyed in 2000-2001 and 2011 showed little net change in the number of individuals (+1.3%) or groups (-3.8%) encountered, despite a 68% decline in the number individuals recorded at one site. Within 1-km transect sections there was a positive correlation between change in Hinde's Babbler abundance and change in the amount of scrub cover available, such that a reduction in scrub cover of 22 and 6 percentage points, respectively, was associated with the loss of one group or one individual. The availability of scrub cover was dependent mainly on the amount land left uncultivated, perhaps in response to changes in the value of coffee and other crops. Since the babbler's abundance thus currently depends mainly on land sharing by default, rather than by design, we suggest that a more proactive approach, involving land purchase or payments for land set aside, might help to secure its future.

AB - In developing countries, 'land sparing' may be more effective than 'land sharing' in partially mitigating the impacts of farming on bird species diversity. We examined the pattern of change in the global and local distribution of Hinde's Babbler Turdoides hindei, a 'Vulnerable' Kenyan endemic whose local abundance is dependent on a passive form of land sharing, in which farmland is left fallow or abandoned, enabling Lantana scrub to colonise. In 2011 we assessed the species' global range and resurveyed three IBAs, surveyed previously in 2000-2001, to determine whether fine-scale changes in abundance reflected temporal changes in habitat quality. Although the babbler's known range increased between 1900-1970 and 1991-2011, we suggest that this apparent expansion largely reflects an improved knowledge base, and that several recently discovered sites are likely to have been overlooked in the past. In combination, the three IBAs surveyed in 2000-2001 and 2011 showed little net change in the number of individuals (+1.3%) or groups (-3.8%) encountered, despite a 68% decline in the number individuals recorded at one site. Within 1-km transect sections there was a positive correlation between change in Hinde's Babbler abundance and change in the amount of scrub cover available, such that a reduction in scrub cover of 22 and 6 percentage points, respectively, was associated with the loss of one group or one individual. The availability of scrub cover was dependent mainly on the amount land left uncultivated, perhaps in response to changes in the value of coffee and other crops. Since the babbler's abundance thus currently depends mainly on land sharing by default, rather than by design, we suggest that a more proactive approach, involving land purchase or payments for land set aside, might help to secure its future.

KW - Demography

KW - Range

KW - Habitat change

KW - Land sharing

KW - Lantana

U2 - 10.1017/S0959270913000579

DO - 10.1017/S0959270913000579

M3 - Article

AN - SCOPUS:84910602536

VL - 24

SP - 453

EP - 465

JO - Bird Conservation International

JF - Bird Conservation International

SN - 0959-2709

IS - 4

ER -

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