The conservation status and vocalizations of threatened birds from the scarp forests of the Western Angola Endemic Bird Area

The western Angola Endemic Bird Area has 14 range-restricted species. Little is known about the conservation status of the region's birds due to the civil war that has raged in Angola for the last 27 years. The greatest diversity of restricted-range species is found in Cuanza Sul province, and given the uncertainty about their current status, many of these species are listed as Threatened. In this paper we report the first significant ornithological visits to the Gabela region since 1974. We visited an extensive scarp forest patch at Kumbira Primero, near Conda, as well as smaller forest areas along the Sumbe–Gabela and Sumbe–Seles roads. Most of the threatened species were relocated, including several species not seen since the 1970s. Gabela Bush-shrike Laniarius amboimensis was common and Monteiro's Bush-shrike Malaconotus monteiri was fairly common in degraded secondary forest, old coffee plantations and primary forest at Kumbira. Pulitzer's Longbill Macrosphenus pulitzeri was fairly common at higher elevations at Kumbira as well as in the dense understorey of secondary forest west of Seles. Gabela Akalat Sheppardia gabela was less common, with only three birds found at Kumbira and one near Seles, but may have been overlooked. Only one group of eight Gabela Helmet-shrike Prionops gabela was recorded, in open woodland at the base of the scarp between Kumbira and Seles. Angola Cave-chat Xenocopsychus ansorgei was found on the rocky slopes above the forest at Kumbira. We describe the first sound recordings for five threatened species, which will help future systematic surveys of the region's forests. Vocal evidence confirms the close relationship between Gabela Bush-shrike and Lühder's Bush-shrike L. luehderi. The most pressing need is to assess the extent of remaining forests, map the distribution of key species of conservation concern, and then draft a strategy to conserve key habitat blocks.

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Current Status of Threatened Plant Collections in Cibodas Botanical Garden Based on IUCN Red List

Jurnal Penelitian Kehutanan Wallacea ◽

10.18330/jwallacea.2020.vol9iss1pp31-42 ◽

2020 ◽

Vol 9 (1) ◽

pp. 31

Author(s):

Vandra Kurniawan ◽

Dwinda Mariska Putri ◽

Muhammad Imam Surya

Keyword(s):

Threatened Species ◽

Conservation Status ◽

Botanical Garden ◽

Iucn Red List ◽

Red List ◽

Critically Endangered ◽

Current Status ◽

Main Task ◽

Threatened Plant ◽

Plant Collections

One of the main task of Cibodas Botanical Garden (CBG) is to conserve the Indonesian plants species. Moreover, the preservation and enrichment of threatened plant collections based on IUCN red list categories became an important programme for plants conservation in CBG. The aims of this study are to inventory threatened plant collections and to review the status of CBG threatened plant collections. List of threatened plant collections was gathered from SINDATA, a system developed by CBG. The collection, was reviewed by inspecting current collections in CBG. Literature study was done to review the conservation status of the threatened plant collections. The conservation status was checked in IUCN red list website. The results shown that CBG had collected 86 species of threatened plants, which is 13 Critically Endangered (CR) species, 39 Endangered (EN) species, and 34 Vulnerable (VU) species. Critically endangered category consists of 13 species belong to 8 families and 10 genus. Endangered category consists of 39 species belong to 17 families and 34 genus. Vulnerable category consists of 34 species belong to 27 families and 28 genus. The largest collections of threatened species was genus Nepenthes, which is 16% (14 species) from the total threatened species in CBG. Furthermore, CBG had succeeded in collecting 40 species of Indonesian native plants in which Dipterocarpaceae species were dominate the collection with 7 species. These species are listed as critically endangered (3 species) and endangered (4 species).

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The conservation status of birds in Laos: a review of key species

Bird Conservation International ◽

10.1017/s0959270900002197 ◽

1998 ◽

Vol 8 (S1) ◽

pp. 1-159 ◽

Cited By ~ 25

Author(s):

R. M. Thewlis ◽

R. J. Timmins ◽

T. D. Evans ◽

J. W. Duckworth

Keyword(s):

Threatened Species ◽

Conservation Status ◽

Bird Conservation ◽

Additional Species ◽

Key Species ◽

The Status ◽

Global Status ◽

Conservation Concern ◽

First Time ◽

Near Threatened

SummaryLaos is an important country for bird conservation. Bird surveys between 1992 and 1996, the first since 1949, covered 20 main areas, with incidental records from many others.This paper reviews the status of all Lao species reported to be of elevated conservation concern (key species) in any of the following categories: Globally Threatened or Globally Near-Threatened (sensu Collar and Andrew 1988 and Collar et al. 1994), and At Risk or Rare in Thailand (sensu Round 1988 and Treesucon and Round 1990). Several additional species are covered which have clearly undergone a National Historical Decline in Laos. A comprehensive review of other Lao species was not possible, and some species which are in truth of conservation concern have doubtless been overlooked. Historical and modern records were reviewed and population trends identified where possible.Current global status listings (Collar et al. 1994) were supported, except that consideration should be given to changing Red-collared Woodpecker Picus rabieri and Sooty Babbler Stachyris herberti from Threatened to Near-Threatened. If the Lao situation is representative of the species throughout their range, then consideration should also be given to placing Ratchet-tailed Treepie Temnurus temnurus and River Lapwing Vanellus duvaucelii as Near-Threatened.Twenty-seven Globally Threatened species are known from Laos, of which there are recent records of 22. There are recent unconfirmed records of two more. Forty-seven Globally Near-Threatened species are known from Laos, of which there are recent records of 39; there are unconfirmed records of one further species. Five Globally Threatened and five Near-Threatened species were recorded for the first time in Laos in recent years, suggesting that further species of elevated conservation concern remain to be found.

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Scytalopus Stilesi, A New Species of Tapaculo (Rhinocryptidae) From the Cordillera Central of Colombia

The Auk ◽

10.1093/auk/122.2.445 ◽

2005 ◽

Vol 122 (2) ◽

pp. 445-463 ◽

Cited By ~ 5

Author(s):

Andrés M. Cuervo ◽

Carlos Daniel Cadena ◽

Niels Krabbe ◽

Luis Miguel Renjifo

Keyword(s):

New Species ◽

Dna Sequences ◽

Secondary Forest ◽

Phylogenetic Analyses ◽

Conservation Status ◽

Bird Species ◽

Primary Forest ◽

Forest Fragments ◽

Cordillera Central ◽

Colombian Andes

Abstract We describe Scytalopus stilesi, an overlooked species of tapaculo endemic to Colombia, on the basis of a series of eight specimens taken in 2002 and comparative analyses of its vocalizations, mitochondrial DNA sequences, and distribution. The new species ranges in the northern half of the Cordillera Central of the Colombian Andes in the Departments of Antioquia, Caldas, and Risaralda, in cloud forests between 1,420 and 2,130 m above sea level. The song, calls, and female song of the new species differ distinctly from those of all other known Scytalopus taxa. Phylogenetic analyses based on sequences of the cytochrome-b gene strongly suggest affinities with S. robbinsi of southwestern Ecuador and with two as-yet-undescribed tapaculos from the Colombian Andes. Scytalopus stilesi coexists locally with, though it is ecologically segregated from, S. atratus, S. latrans, and S. spillmanni. The mid-elevation premontane wet forests to which the new species is restricted have been subject to severe deforestation and fragmentation. The species is, however, relatively common in continuous mature-forest remnants, large primary-forest fragments, riparian forests, and tall secondary-forest patches. We employed a geographic information system (GIS) approach to model the potential distribution of the new species and assess its conservation status under the International Union for the Conservation of Nature (IUCN) criteria. Scytalopus stilesi does not qualify as threatened according to those criteria, but it should be regarded as near threatened. The new species coexists with numerous threatened bird species that are in need of more effective conservation.

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Conservation status of endemic Galliformes on Hainan Island, China

Bird Conservation International ◽

10.1017/s0959270900002161 ◽

1998 ◽

Vol 8 (4) ◽

pp. 411-416 ◽

Cited By ~ 2

Author(s):

Gao Yu-ren

Keyword(s):

Nature Reserve ◽

Secondary Forest ◽

Conservation Status ◽

Hainan Island ◽

The Other ◽

Primary Forest ◽

Density Estimates ◽

In The Wild ◽

The Hill ◽

Primary Forests

SummaryThe Hainan Hill-partridge Arborophila ardens is endemic to the island of Hainan, which lies off the south coast of China. Distinct subspecies of the Silver Pheasant Lophura nyethemera xvhiteheadi and Grey Peacock-pheasant Polyplectron bicalcaratum katsumatae are also endemic to the island. All three taxa are considered endangered and are very poorly known in the wild. Surveys of remaining patches of forest were undertaken between 1987 and 1994 during which local people were interviewed and some forest areas were visited. The hill-partridge was confirmed from three blocks of forest and reported from a further four. The Silver Pheasant was found in six areas of forest and probably occurs in all remaining patches of well-developed secondary and primary forest. The Grey Peacock-pheasant was recorded in five forests and reported from a further four. The hill-partridge was more restricted in its habitat use than the other two species, the latter using well-developed secondary forest in addition to primary forests. Provisional density estimates made at Ba Wang Ling National Nature Reserve were 6–8 Hainan Hill-partridges/km2, 7.5 Silver Pheasants/km2 and 3.75 Grey Peacock-pheasants/km2.

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Pemanfaatan Strata Hutan oleh Tikus Ekor Putih (Maxomys hellwaldii) di Gunung Klabat Kabupaten Minahasa Utara, Sulawesi Utara (Utilization of Forest Strates by White Equipment Rats (Maxomys hellwaldii) in Klabat Mountain North Minahasa Distric, North Sulawesi)

JURNAL BIOS LOGOS ◽

10.35799/jbl.9.1.2019.23368 ◽

2019 ◽

Vol 9 (1) ◽

pp. 15

Author(s):

Baren Rumanasen ◽

Saroyo Saroyo ◽

Pience Maabuat

Keyword(s):

Natural Resources ◽

Secondary Forest ◽

Conservation Status ◽

Primary Forest ◽

Secondary Forests ◽

International Union ◽

Transect Line ◽

North Sulawesi ◽

Primary Forests ◽

Made In

Pemanfaatan Strata Hutan oleh Tikus Ekor Putih (Maxomys hellwaldii) di Gunung Klabat Kabupaten Minahasa Utara, Sulawesi Utara(Utilization of Forest Strates by White Equipment Rats (Maxomys hellwaldii) in Klabat Mountain North Minahasa Distric, North Sulawesi) Baren Anggyon Rumanasen1)*, Saroyo1), Pience Maabuat1)1)Program Studi Biologi FMIPA Universitas Sam Ratulangi, Manado 95115*Email korespondensi: [email protected] Diterima 15 Januari 2019, diterima untuk publikasi 28 Februari 2019 Abstrak Tikus ekor putih (Maxomys hellwaldii) adalah hewan endemik Sulawesi, yang oleh IUCN status konservasinya masih kurang diperhatikan. Ancaman utama tikus ekor putih adalah perburuan untuk dijual. Penelitian ini bertujuan menganalisis pemanfaatan strata hutan oleh tikus ekor putih (Maxomys hellwaldii) di Gunung Klabat Kabupaten Minahasa Utara, Provinsi Sulawesi Utara. Pengamatan menggunakan metode garis transek, dua garis transek dibuat masing-masing pada hutan primer dan hutan sekunder, panjang garis transek masing-masing 2 km dengan lebar 20 m. Hasil penelitian menunjukkan di hutan primer tikus ekor putih memanfaatkan stratum B sebesar 7,59%, dan stratum C 92,40%. Pada hutan sekunder tikus ekor putih memanfaatkan stratum C sebesar 100%. Aktivitas yang dilakukan tikus ekor putih pada hutan primer, mencari makan sebesar 56,96%, aktivitas berpindah sebesar 30,37%, aktivitas makan sebesar 5,06%, dan aktivitas istirahat sebesar 7,59%. Pada hutan sekunder, sebesar 15,06%, aktivitas makan (2,73%),dan aktivitas istirahat sebesar 27,39%.Kata kunci: tikus ekor putih, aktivitas, strata hutan, Gunung Klabat Abstract White-tailed mice (Maxomys hellwaldii) are endemic to Sulawesi, which by the IUCN (The International Union for Conservation of Nature and Natural Resources) still lacks attention to conservation status. The main threat to white-tailed mice is hunting for sale. The study used the transect line method, two transect lines were made in primary forest and two transect lines were made in secondary forest, the length of the transect line was 2 km in width and 20 m in width. The results showed that in primary forest white-tailed mice made use of stratum B of (7.59%), and stratum C was (92.40%). Whereas in the secondary forest white tail rats only use the C stratum, which is equal to 100%. Activities carried out by white-tailed rats were in primary forests, foraging for (56.96%), moving activities by (30.37%), eating activities by (5.06%), and resting activities at (7.59 %). In secondary forests, white-tailed mice looked for food (54.79%), shifting activity (15.06%), eating activities (2.73%), and resting activities (27.39%).Keywords: white-tailed mice, activity, forest strates, Klabat Mountain

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Population sizes and the conservation status of endemic and restricted-range bird species on Karakelang, Talaud Islands, Indonesia

Bird Conservation International ◽

10.1017/s0959270903003058 ◽

2003 ◽

Vol 13 (1) ◽

pp. 59-74 ◽

Cited By ~ 6

Author(s):

Jon Riley

Keyword(s):

Habitat Loss ◽

Threatened Species ◽

Wild Bird ◽

Conservation Status ◽

Bird Species ◽

The Philippines ◽

Primary Forest ◽

Restricted Range ◽

Density Estimates ◽

Secondary Habitats

Karakelang, largest of the Talaud Islands, Indonesia, was visited in 1999 with the aim of producing population estimates of globally threatened and Restricted-range bird species. Density estimates were calculated from primary forest and secondary habitats using the variable circular plot method. Eight of the nine restricted-range or threatened species resident on Karakelang were recorded and density estimates calculated for five of these. Two species of rail are endemic to Karakelang, Talaud Bush-hen Amaurornis magnirostris and Talaud Rail Gymnocrex talaudensis. The bush-hen was encountered in secondary habitat but occurred at higher densities in primary forest and the estimated population was 2,350–9,560 birds. The less vocal, cryptic G. talaudensis was noted just twice, in primary forest close to rivers. Both have small populations, are threatened by habitat degradation, hunting, and possibly predation by introduced rats and should be classified as threatened. Population densities of the Endangered, endemic Red-and-blue Lory Eos histrio had remained stable since the last survey in 1997. They occurred at higher densities in primary forest, but were also common in human-made habitats. The estimated population was 8,230–21,400 birds, threatened by habitat loss and trapping for the wild bird trade. Although more commonly encountered in forest, the Near Threatened Blue-naped Parrot Tanygnathus lucionensis was found at higher densities in secondary habitats, and the population was estimated at 8,130–20,700 birds. The Restricted-range Blue-tailed Imperial Pigeon D. concinna was very common on Karakelang (14,500–27,700 birds), whilst the Vulnerable Grey Imperial Pigeon D. pickeringii was recorded rarely; both species were more frequently recorded in primary forest. The endemic Talaud Kingfisher Halcyon enigma occurred at low densities (5,290–8,690 birds), in primary forest and adjacent disturbed areas. It is heavily dependent on primary forest and threatened by habitat loss, and should be classified as Vulnerable. Approximately 350 km2 of primary forest on Karakelang is protected, 250 km2 as a wildlife reserve. However, at present, management is absent and forest is threatened by agricultural encroachment, illegal logging, and fire. Given that all endemic and threatened species were encountered more frequently or occurred at higher densities in primary forests, future conservation efforts should target these protected areas. Management of reserves should involve local stakeholders from government and representatives of island communities. Wildlife trade is a major threat to Eos histrio and strict enforcement of the species' protected status should include monitoring of roost sites, patrols of harbours and markets in Talaud, Sulawesi and the Philippines, and the control of Philippine fishing boats involved in the wild bird trade. Further species-specific research and monitoring is also required.

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New insights into Sulawesi's apex predator: the Sulawesi civet Macrogalidia musschenbroekii

Oryx ◽

10.1017/s0030605319000723 ◽

2019 ◽

Vol 54 (6) ◽

pp. 878-881

Author(s):

Iwan Hunowu ◽

Alfons Patandung ◽

Wulan Pusparini ◽

Isabel Danismend ◽

Andi Cahyana ◽

...

Keyword(s):

National Park ◽

Nature Reserve ◽

Secondary Forest ◽

Conservation Status ◽

Habitat Preferences ◽

Camera Trap ◽

Provincial Government ◽

Primary Forest ◽

North Sulawesi ◽

Potential Competitor

AbstractThe Sulawesi civet Macrogalidia musschenbroekii is endemic to the Indonesian island of Sulawesi, where it is the largest mammalian predator. Limited field data means that little is known about the species’ distribution, habitat preferences, conservation status and needs, but it is believed to depend on primary forest. We conducted camera-trap surveys across the forests of North Sulawesi, including in two of its main protected areas: Bogani Nani Wartabone National Park and Tangkoko Nature Reserve. From 148 camera trap stations and 10,371 trap nights, Sulawesi civets were recorded 17 times at 12 stations, and in almost equal numbers in primary forest, secondary forest and farmland, including the first photographic records from both the National Park and Nature Reserve. We also collected data on the Malay civet Viverra tangalunga, an introduced species of Viverridae and potential competitor. Our records (n = 21) revealed that it is established in secondary forest; it only co-occurred twice with the Sulawesi civet. With a lapse of > 20 years since the last field record of the Sulawesi civet, our findings offer new insight into its status and new enthusiasm within the provincial government for its conservation, which has led to an extension of camera-trap research into neighbouring Gorontalo province.

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Spider diversity in the Bukit Timah Nature Reserve, Singapore

Gardens’ Bulletin Singapore ◽

10.26492/gbs71(suppl.1).2019-08 ◽

2019 ◽

Vol 71 ((suppl.1)) ◽

pp. 209-243

Author(s):

J.K.H. Koh ◽

D.J. Court

Keyword(s):

Nature Reserve ◽

New Records ◽

Secondary Forest ◽

Distinct Species ◽

Primary Forest ◽

Preliminary Results ◽

Vegetation Zones ◽

Comprehensive Survey ◽

Quantitative Analyses ◽

First Time

This paper discusses the preliminary results of the first comprehensive survey of the spiders of the Bukit Timah Nature Reserve (BTNR) in Singapore. Two plots were established in each of the three zones of vegetation, viz., primary forest, old secondary forest, and maturing secondary forest. They were repeatedly sampled over an 18-month period. Sorting of the collection so far suggests that the three vegetation zones harbour rather different spider assemblages. Only ~9% of the total spider fauna recovered was shared by all three zones. The results have also yielded a preliminary picture of dominance, abundance and rarity. Although first intended to obtain a baseline for future quantitative analyses, the survey became a testing ground to modify and refine methodology so as to conduct future quantitative surveys with greater scientific rigour. Taxonomic work on the samples so far shows that the spiders in the BTNR span over 43 families, of which six families are listed for the first time in Singapore. The tally is summarised in an interim checklist of BTNR spiders. The checklist, with a total of 317 entries, shows that there are 158 described species of spiders in BTNR, of which 25 species are new records for Singapore. Another 159 morphospecies are provisionally recognised as distinct species, some of which may be new to science. Our observations during the survey have allowed us to provide a narrative of BTNR spider diversity against a backdrop of their microhabitat specialisation.

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MANAJEMEN DATA SPASIAL: PENGGUNAAN TANAH WILAYAH PEDESAAN DI SUMATERA BARAT

Jurnal Spasial ◽

10.22202/js.v5i2.3090 ◽

2019 ◽

Vol 5 (2) ◽

pp. 48-53

Author(s):

Afrital Rezki, S.Pd., M.Si ◽

Erna Juita ◽

Dasrizal Dasrizal ◽

Arie Zella Putra Ulni

Keyword(s):

Land Use ◽

Paddy Field ◽

Secondary Forest ◽

Water Bodies ◽

Primary Forest ◽

Land Uses ◽

Forest Land ◽

Land Use Patterns ◽

Crop Fields ◽

Mixed Plantations

Perkembangan penggunaan tanah bergerak horisontal secara spasial ke arah wilayah yang mudah diusahakan. Penggunaan tanah juga bergerak secara vertikal dalam rangka menaikkan mutunya. Penelitian ini bertujuan untuk menganalisis pola penggunaan lahan, bagaimana manajemen penggunaan lahan di satu wilayah berdasarkan batas Nagari. Metode yang digunakan adalah analsisis spasial dengan interpretasi citra penginderaan jauh, survey lapangan, dan analisis deskriptif. Pertumbuhan pemukiman Nagari Sungai Sariak Kecamatan VII Koto Kabupaten Padang Pariaman mengakibatkan pemanfaatan ruang menjadi tumpang tindih. Diperlukan cara-cara pengelolaan dan managemen penggunaan tanah dalam rangka pembangunan berkelanjutan yang menaikkan taraf hidup masyarakat dan tidak menimbulkan kerugian lingkungan.Terdapat 9 jenis penggunaan lahan yang ada di Nagari Sungai Sariak. Penggunaan lahan tersebut adalah Primary Forest, Secondary Forest, Paddy Field, Settlement, Mixed Plantations, Crop Fields, Water Bodies, Bushes, dan Plantations. Penggunaan lahan yang paling luas di Nagari Sungai Sariak adalah jenis penggunaan lahan Primary Forest, sebesar 48% dari total luas wilayah Nagari Sungai Sariak. Pada tahun 2011 sampai tahun 2016, penggunaan lahan paling luas terjadi pada penggunaan lahan jenis Primary Forest yang kemudian menjadi Mixed Plantations. Land use Changes moved horizontally spatially towards areas that are easily cultivated. The land use also moves vertically in order to increase its quality. This study aims to analyze land use patterns, how land use management in one area is based on Nagari boundaries. The method used is spatial analysis with interpretation of remote sensing images, field surveys, and descriptive analysis. The growth of Nagari Sungai Sariak in Kecamatan VII Koto, Kabupaten Padang Pariaman resulted in overlapping use of space. Management methods are needed and management of land use in the framework of sustainable development that raises the standard of living of the community and does not cause environmental losses. There are 9 types of land use in the Nagari Sungai Sariak. The land uses are Primary Forest, Secondary Forest, Paddy Field, Settlement, Mixed Plantations, Crop Fields, Water Bodies, Bushes, and Plantations. The most extensive land use in Nagari Sungai Sariak is the type of Primary Forest land use, amounting to 48% of the total area of the Nagari Sungai Sariak. From 2011 to 2016, the most extensive land use occurred in Primary Forest land uses which later became Mixed Plantations.

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Responses of Bat Communities (Mammalia: Chiroptera) to Forest Loss and Habitat Conversion in Southern Cameroon

Tropical Conservation Science ◽

10.1177/19400829211010360 ◽

2021 ◽

Vol 14 ◽

pp. 194008292110103

Author(s):

Patrick Jules Atagana ◽

Eric Moïse Bakwo Fils ◽

Sevilor Kekeunou

Keyword(s):

Secondary Forest ◽

Biosphere Reserve ◽

Abundant Species ◽

Primary Forest ◽

Habitat Types ◽

Habitat Transformation ◽

Significant Difference ◽

Southern Cameroon ◽

Habitat Conversion ◽

Species Specific

We aimed to assess how bats are affected by habitat transformation by comparing bat assemblages in four habitat types: primary forest, secondary forest, cocoa plantations and human habitations in the Dja Biosphere Reserve of southern Cameroon. Bats were sampled in the four habitat types using mist nets. During 126 nights, a total of 413 bats were captured, belonging to four families, 16 genera and 24 species. Ninety three individuals (17 species) were captured in the primary forest, followed by plantations (105 individuals, 14 species), human habitations (159 individuals, 10 species), and secondary forest (55 individuals, eight species). Megaloglossus woermanni was recorded in all the four habitats, and was the most abundant species (105 individuals). The analysis of bat assemblage between habitat types showed a statistically significant difference in species composition. The distribution of the six most abundant species ( Epomops franqueti, Megaloglossus woermanni, Rousettus aegyptiacus, Dohyrina cyclops, Hipposideros cf. caffer and Hipposideros cf. ruber) was influenced by habitat types. Our results suggest that the decrease in species richness observed in disturbed habitats may be due to habitat perturbations of primary forest habitats. Therefore, it is important to examine the effects of habitat conversion at species level, as responses are often species-specific.

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