Forest Fragmentation and Impacts on the Bird Community

Abstract

The study aimed at verifying the patterns of bird community related to different land-use/land-cover. The study area was a Conservation Unit and its buffer area. We used the fixed-point method, visiting 80 points in five times, through one year. The points were plotted in lands agriculture (AGR) and planted forest (FP) and, in areas covered by native forest (NF). The diversity index (H'), abundance (IPA), richness (X2) and categories of species-trophic were calculated, as well as the difference between H' and X2 according to land-use/land-cover was verified by an ANOVA. We also evaluated the taxonomic and functional similarity of the bird community, based in IPA and bird presence/absence. There were significant differences for both X2 and H', comparing NF and FP; NF and AGRP and; AGRP and FP. Concerning the trophic categories, the significant differences were between NF and AGRP and; FP and AGRP, because AGRP is a homogeneous environment with less diversity of resources. Conversely, NF and FP presented similarities as a consequence of the heterogeneity of its structures that subsidize greater avifauna stability than other land-use/land-cover. We conclude that the bird diversity and richness is related to the complexity of the landscape structure.

Impact of Forest Fragment on Bird Community at the Bukit Kuantan Rubber Forest Plantation

“…The high value of bird species recorded in the forest fragment might implicates on the impact and importance of forest fragment area for conserving bird diversity. Similar results were also obtained by other researchers such as in Azlan et al 2019;de Matos et al 2018;Zhang et al 2017;Guerra et al 2012;Aratrakorn et al 2006;Marsden et al 2001). Species such as Cream-vented Bulbul (Pynonotus simplex) showed an obvious reduction in term of abundance when far from the forest fragment while species such as Yellow-vented Bulbul (P. goiaver) and Oriental-magpie Robin (C. saularis) showed an obvious increment in the term of abundance when far from the forest fragment.…”

“…Nonetheless, a mono-crop plantation still has the potential in harbouring biodiversity into the plantation matrix through certain approaches. Research has identified several approaches that could be integrated with plantation ecosystem such as conservation of forest fragment or riparian buffer zones within the plantation matrix, creating complex vegetation structures, enhancing landscape heterogeneity , and maintaining understory vegetation and mature trees (Azlan et al 2019;de Matos et al 2018;Zhang et al 2017;Najera and Simonetti, 2009). By having a diverse tree and shrubs in term of structure and floristically, scientist believe that it could increase the diversity of an area in term of species density, species abundance and species richness (Perfecto et al, 2004;Najera and Simonetti, 2010;Achondo et al, 2011).…”

Effects of low-impact logging on understory birds in the Brazilian Amazon

“…The increasing similarity in assemblage structure between logged and unlogged areas suggests a decrease of environmental impacts in a relatively short time period (five years after logging). Thus, the results may indicate the positive effects of ecological succession on bird biodiversity by the substitution of species by those typically found in undisturbed forests (Matos et al 2018). This may explain why in the fifth year after logging forest specialist species were captured in the logged area, and those were absent in previous years (e.g., Pithys albifrons, Gymnopithys rufigula, and Automolus ochrolaemus).…”

Forest Fragmentation in an Unregulated Protected Area on the Atlantic Coast of Brazil

“…Studies on forest fragmentation in areas of national parks, regularized or not, allow understanding landscape structures and support strategies for preserving the ecosystems in these protected areas (Oliveira et al, 2019), as the dynamics of forest patches is an important factor to ensure the richness and abundance of species that depend on structural traits of habitats for survival (Rodrigues and Nascimento, 2006;Laurance and Vasconcelos, 2009;Matos et al 2018).…”