Factors affecting bird richness in a fragmented cork oak forest in Morocco

Cherkaoui, Sidi Imad; Selmi, Slaheddine; Boukhriss, Jihen; Rguibi‐Idrissi, Hamid; Dakki, Mohammed

doi:10.1016/j.actao.2008.10.002

Cited by 44 publications

(36 citation statements)

References 33 publications

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“…Pengamatan di ketiga lokasi dilakukan dengan berjalan kaki menelusuri jalur pengamatan (Cavarzere, 2013), oleh orang-orang yang sama (Cherkaoui et al, 2009;Jiguet, 2009;Eglington et al, 2010), menggunakan metode point count (Volpato et al, 2009;Cavarzere, 2013). Pada setiap lokasi terdapat tiga jalur pengamatan.…”

Section: Pengamatan Burungunclassified

Bird responses to habitat change in the karst area of Bantimurung Bulusaraung National Park

Putri¹,

Broto²,

Ansari³

2017

JPKW

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Burung merupakan bioindikator perubahan habitat. Penelitian ini bertujuan untuk mengetahui respons burung yang berhabitat di karst Maros-Pangkep, Taman Nasional Bantimurung Bulusaraung terhadap perubahan habitat. Penelitian dilakukan di tiga lokasi, dengan perbedaan tingkat gangguan, yaitu zona inti (minim gangguan), zona rimba (tingkat gangguan sedang), kebun masyarakat (tingkat gangguan tinggi). Pengumpulan data vegetasi habitat burung dilakukan menggunakan modifikasi metode garis berpetak. Pengumpulan data burung dilakukan menggunakan metode point count. Analisis data vegetasi habitat burung dilakukan menggunakan kerapatan vegetasi. Perbedaan komposisi vegetasi habitat burung dianalisis menggunakan indeks kesamaan komunitas Sorensen. Analisis data burung dilakukan menggunakan kepadatan populasi, indeks keragaman jenis Shannon-Weinner, indeks dominansi Simpson, indeks kemerataan jenis Pielou, serta indeks kekayaan jenis Margalef. Beda nyata pada populasi burung diuji menggunakan uji ANOVA satu arah, serta uji Tukey dan Bonferroni. Hasil penelitian memperlihatkan bahwa burung yang hidup di karst tergolong peka akan perubahan habitat, yang terlihat dari adanya perbedaan nyata pada populasi. Degradasi habitat berdampak pada berbagai tingkatan trofik, dan direspons burung dalam bentuk berkurangnya jumlah individu dan spesies, peralihan spesies burung yang memiliki indeks nilai penting (INP) tertinggi dari spesies dengan tingkat toleransi rendah ke tingkat toleransi tinggi, peralihan feeding guild burung yang memiliki INP tinggi dari frugivora ke frugivora-insektivora dan selanjutnya ke granivora, berkurangnya jumlah spesies berukuran tubuh besar, serta berkurangnya jumlah spesies yang membutuhkan tempat khusus untuk bersarang. Mengingat karst Maros-Pangkep memiliki berbagai peran penting, maupun nilai ilmiah dan keragaman hayati yang tinggi, maka diperlukan pelibatan berbagai pihak, untuk menjaga kelestariannya, termasuk penetapan seluruh areal karst Maros-Pangkep menjadi kawasan bentang-alam karst.

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Section: Pengamatan Burungunclassified

Bird responses to habitat change in the karst area of Bantimurung Bulusaraung National Park

Putri¹,

Broto²,

Ansari³

2017

JPKW

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“…Recientemente han aparecido estudios de análisis de los factores que afectan a la riqueza (valor promedio del número de especies contactadas) de aves en alcornocales marroquíes (CHERKAOUI et AL., 2009), en los que se demuestra que la diversidad y abundancia de árboles y arbustos determina la riqueza avifaunística. En la Península Ibérica los estudios de LEAL et AL.…”

Section: Estudios De La Avifauna De Los Alcornocalesunclassified

Gestión del bosque mediterráneo y conservación de la avifauna: el caso de los alcornocales

Lozano¹,

Subirós²

2012

Polígonos

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RESUMEN:Se presentan los resultados de los diversos estudios de poblaciones de aves realizados en los alcornocales catalanes, especialmente en cuanto a la riqueza específica de los mismos. Dado que los estudios publicados hasta el momento en esta materia eran referidos a la estación reproductora (primavera), se señalan los datos recogidos en los alcornocales de les Gavarres (NE peninsular), durante la estación invernal. Asimismo, se analizan las diversas tipologías de alcornocales que se encuentran en Catalunya, bosques en gestión activa, y por tanto sin sotobosque, y bosques abandonados en los que la biomasa del sotobosque es máxi-ma, y se exponen los resultados de la comparativa entre ambas tipologías de explotación cuando se aplica un índice de conservación de la avifauna, basado en la riqueza de cada una de las especies registradas, la presencia de especies amenazadas según los criterios de la UICN (SPEC) y su categoría de amenaza (non-SPEC, SPEC 4, SPEC 3, SPEC 2 y SPEC 1). Los resultados obtenidos muestran como las explotaciones abandonadas tienen un índice de conservación de avifauna más elevado que los bosques en explotación activa. Se discuten estos resultados en el contexto de la gestión forestal y las ayudas recibidas por parte de las administraciones para llevar a cabo estas prácticas de gestión. PALABRAS CLAVE: alcornocales, avifauna, gestión. MANAGEMENT OF MEDITERRANEAN FORESTS AND AVIAN CONSERVA-TION: THE CASE OF LOS ALCORNOCALES ABSTRACT:We present the results of the diverse studies of populations of birds realized in the Catalan cork oaks, especially for the specific richness. Provided that the studies published up to the moment in this matter were recounted to the breeding station (spring), we present the information gathered in the cork oaks of Gavarres (peninsular NE), during the winter station. Likewise, the diverse typologies of cork oaks that are in Catalonia, forests in active management and therefore without understory and forests left in that the biomass of the understory are maximum, are analyzed. We present the results of the comparative between both typologies of exploitation when there is applied an index of conservation of the avifauna, based on the richness of each of the registered species, the presence of species threatened according to the criteria of the UICN (SPEC) and his category of threat (non-SPEC, SPEC 3, SPEC 2 and SPEC 1). The obtained results show as the left exploitations have an index of conservation of avifauna higher than the forests in active exploitation. These results are dis-

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“…The total number of species observed in the counts was higher in Iberia but the rarefaction analysis indicates that this is due to a greater sampling effort. In fact, most species observed only at Iberian sites are also occasionally present in the North African cork oak woodlands that we sampled (Cherkaoui et al 2009 and personal observations), but are not abundant and were not detected during the point counts for stochastic reasons.…”

Section: Guild Assemblagementioning

confidence: 99%

“…When intensive, such practices are known to alter habitat structure and resource availability for birds (Godinho andRabaça 2011, Leal et al 2013). In traditionally managed areas, sustainable exploitation is usually necessary to maintain high biodiversity levels (Bugalho et al 2011), but overexploitation is detrimental and is already affecting birds (Cherkaoui et al 2009) and plants (Marañón et al 1999) in North Africa. Other taxa, like mammals (Rosalino et al 2011) and insects (Silva et al 2009), are also likely to be affected.…”

Section: Implications For Conservationmentioning

confidence: 99%

Role of the Mediterranean Sea in differentiating European and North African woodland bird assemblages

2015

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Abstract:The Mediterranean Sea has separated the sclerophyllous forests of southern Europe and northern Africa for millions of years, but its role structuring forest bird assemblages remains unclear. To address this issue we sampled bird assemblages in cork oak woodlands located north and south of the Strait of Gibraltar and compared abundance, diversity, and species and guild assemblage structure between regions. Abundance and diversity patterns were remarkably similar, but dissimilarity analyses of species and guild composition revealed differences in bird assemblage structure between regions. Differences are partly attributable to the effect of the Mediterranean as barrier to the dispersal of forest birds; a few species were unable to colonize North Africa, and many that colonized it remained in sufficient isolation to evolve into distinct taxa. In addition to this divergence of biogeographic genesis, assemblages also differ because in North African cork oak woodlands forest and insectivorous specialist species are less abundant. This dissimilarity could be due to the effect of different exploitation levels present in each region. Managed cork oak woodlands are widespread in the Western Mediterranean, and are valuable because they conciliate economic exploitation with high biodiversity. In North Africa these woodlands are of greater conservation concern because they harbour endemic bird species that give its assemblage a distinct character, cover a smaller area, and are currently under greater pressure from overexploitation. These results highlight the importance to implement management practices that increase resilience and maintain biodiversity value throughout the range of cork oak woodlands.

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Factors affecting bird richness in a fragmented cork oak forest in Morocco

Cited by 44 publications

References 33 publications

Bird responses to habitat change in the karst area of Bantimurung Bulusaraung National Park

Bird responses to habitat change in the karst area of Bantimurung Bulusaraung National Park

Gestión del bosque mediterráneo y conservación de la avifauna: el caso de los alcornocales

Role of the Mediterranean Sea in differentiating European and North African woodland bird assemblages

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