Avian recolonization of unrestored and restored bogs in Eastern Canada

Over the last several decades, peat has been extracted from bogs of temperate, populated regions of Eastern Canada, leaving large areas devoid of vegetation if unrestored. For the last 25 years, projects have been conducted in these regions to re-establish vegetation and facilitate recolonization by wildlife. We tested whether vegetation structure and bird species assemblages 10 to 20 years post extraction differ among natural, unrestored and restored bogs at the scales of individual sites and entire bogs. We conducted bird counts and vegetation surveys between 1993 and 2019, using both point counts (309 sites) and Autonomous Recording Units (80 sites). According to our vegetation surveys, restoration of sites that were previously used for peat harvesting accelerated the establishment of Sphagnum and herbaceous strata, but ericaceous and tree strata were unaffected over a 17-year period. None of the bird species with large home ranges were associated specifically to natural, unrestored, or restored areas at the bog level. Bird species diversity was similar in restored and natural sites, but lower in unrestored sites. Alder Flycatcher and American Goldfinch occupied restored and unrestored sites more frequently than natural sites, independent of the number of years post extraction. Occupancy of restored sites by Palm and Yellow-rumped Warblers increased over the years, reaching levels similar to those in natural sites 20 years after restoration was implemented. Occupancy of restored sites by Song and Savannah sparrows increased from 1993-2019 and diverged from their declining occupancy of natural sites. Species assemblages of restored and unrestored sites differed significantly from those of natural sites soon after peat extraction ceased or post restoration. But assemblages from restored and unrestored sites became progressively similar to those of natural sites during the first 20 years, especially in restored sites. We conclude that bird species assemblages of restored bog sites are converging toward those of natural sites, and that restoration provides novel habitats for regionally declining species, e.g., Savannah Sparrows.

Species diversity of birds as bioindicators for mangroves damage at Special Economic Zones (SEZ) Mandalika in Central of Lombok, Indonesia

The Mandalika Special Economic Zone (SEZ) was designated as a tourist area in 2015. The development of the Mandalika area directly impacts the sustainability, diversity of species, especially birds that make mangroves their habitat. The study aims to investigate the value of bird species diversity in mangrove habitats as bioindicators. Furthermore, the research has been carried out for three months, from March to May 2021. Research data collection uses the roaming method, and data analysis uses bird community structure analysis (Diversity Index). In this study, 33 species of birds were found. Furthermore, it was found that six species of birds are protected wildlife. In addition, 16 are migratory birds, and 27 are Least Concern (LC) bird species; four species have Near Threatened (NT) status. Meanwhile, the Index of bird community structure is H’ 2.7, uniformity E 0.8, and dominance C 0.9. The value of the bird community structure in the Mandalika SEZ shows the condition of mangrove habitat in the moderate damage category. Therefore, there needs to be an effort to preserve mangroves involving the community, government, and Indonesia Tourism Development Corporation (ITDC) area managers.

The variation of bird diversity in various oil palm land cover in North Mamuju, West Sulawesi, Indonesia

Ramlah S, Santosa Y, Santoso N, Rushayati SB. 2021. The variation of bird diversity in various oil palm land cover in North Mamuju, West Sulawesi, Indonesia. Biodiversitas 22: 3068-3074. The development of oil palm plantations provides various positive impacts. On the other hand, this development is suspected to bring negative impacts on biodiversity, especially reducing bird species diversity. Based on the other research, well-managed oil palm plantations that maintain high conservation value areas have high species diversity. This study aimed to identify bird species diversity in different types of oil palm plantation land covers in North Mamuju. Data observation of bird species was performed using the transect method. There were 4 transects on each land cover. The results of this study showed that the young oil palm area had a high index of diversity and species richness. The high species diversity in the young palm area was caused by habitat variations. There was a water flow that provides more feed sources. The distance between the young oil palm area and secondary forest area affected the number of species, species richness and diversity of bird species. The category of insectivore guild which included aerial insectivores and insectivores was the dominant guild in all types of land cover, both in the number of species and the number of individual abundances.

KEANEKARAGAMAN SPESIES BURUNG DI HUTAN MANGROVE PULAU KELAGIAN BESAR PROVINSI LAMPUNG

The existence of mangrove forests is very important in an area because as a habitat for various types of wildlife, especially birds. This study aims to determine the diversity of bird species in the Kelagian Besar Mangrove Forest, Lampung Province. Data on bird species diversity was obtained by the IPA (Indices Ponctual Abundance) method. Data collection of bird species by recording the type and number of individual birds found. Species identification also uses the method of bird recognition directly by people who know the birds in the area such as the local community or an expert on birds. Data obtained in the field are then analyzed using the Shanon-Winner diversity index formula. The results found 27 species of birds from 21 families with a total of 741 individual birds in the Kelagian Besar Mangrove Forest. While the diversity index value is 2.26 with medium index criteria. There are 8 protected bird species, namely the black-necked darautaut (Sterna sumatrana), the white-wing daralaut (Chlidonias leucopterus), the oyster daralaut (Gelochelidon nilotica), the white belly eagle (Haliaeetus leucogaste), the brontok eagle (Spizaetus cirrhatus), oyster belly Rhipidura javanica), sabine seagulls (Xema sabini), and large fissures (Fregata minor).

A Keragaman dan Populasi Burung Endemik pada Hotspot Kesatuan Pengelolaan Hutan Produksi Wae Sapalewa Seram Utara

Endemic bird species have a high conservation value concentrated in a critical location for conservation with an exciting value in endemic bird species groups. The site of concentration of endemic bird species can be referred to as Endemic Bird Diversity Hotspot. There are seven bird diversity hotspot locations identified in the KPHP Wae Sapalewa region in North Seram, with a good bird species diversity, including endemic bird species. The study aimed to examine the variety and population of endemic bird species at seven hotspot locations within kphp Wae Sapalewa. The research method uses Point Count, which is placed in the transek. The results showed 121 species of birds, consisting of 9 species, namely: Basilornis corythaix, Cacatua moluccensis, Gymnophaps mada, Eos semilarvata, Lorius domicella, Halcyon lazuli, Rhipidura dedemi, Philemon subcorniculatus, and Myzomela blasii. Most endemic bird species have a low population density. This condition shows the need for conservation action for endemic bird species groups in these hotspot locations. KPHP Wae Sapalewa organization has the opportunity to take appropriate conservation actions to accelerate the existence of these endemic bird species.

Species diversity of birds in various high-rise complexes of the Sayano-Shushenskaya Dam area

This paper presents the inventory results of bird species diversity in the area of the Sayano-Shushenskaya Dam. The territory covers the mountainous area of the National Park Shushensky Bor, urban-type settlement Cheryomushki and its surroundings, including a section of the Sayano-Shushensky reservoir in the upper head water of the Sayano-Shushenskaya Dam and the Yenisei channel below the dam. A list of 216 species has been compiled, for 195 there is reliable confirmation of their habitat. The share of migratory-nesting species is 41%, sedentary 14%, migratory species about 31%, wintering and partially wintering 34%. Three species of waterfowl spend winter in the non-freezing areas of the reservoir. Within various high-altitude complexes 10 types of habitats have been identified, where on the basis of quantitative surveys numerous and common bird species have been identified. The maximum species richness was observed for the ornithocoenosis of the floodplain-valley complex. A cluster analysis of the lists of bird species for the selected habitats has been carried out. The analysis showed a high -diversity along the gradient of heights: forest communities of different altitude levels are similar in species lists by no more than 45%, intrazonal and alpine habitats have unique sets of species and are similar to the others by 29%. The lists of birds in subalpine meadows and high-mountain tundras were found to be identical. In winter there is a high correlation of the bird population between the floodplain-valley complex and anthropogenically disturbed territories. Three bird species were found outside the main range and 5 species within the main range, but not previously noted in this area by other researchers.