Patterns of exotic plants in relation to anthropogenic edges within urban forest remnants

2012 ◽  
Vol 15 (4) ◽  
pp. 525-535 ◽  
Author(s):  
Richard LaPaix ◽  
Karen Harper ◽  
Bill Freedman
Keyword(s):  
Urban Forest ◽  
Exotic Plants ◽  
Forest Remnants

Using ecological studies to understand the conservation needs of the squirrel glider in Brisbane?s urban forest-remnants.

2006 ◽  
Vol 28 (2) ◽  
pp. 173 ◽  
Author(s):  
R. L. Goldingay ◽  
D. J. Sharpe ◽  
G. L. Beyer ◽  
M. Dobson
Keyword(s):  
Urban Forest ◽  
Field Work ◽  
Future Research ◽  
Parameter Estimates ◽  
Nest Boxes ◽  
Management Actions ◽  
Forest Remnants ◽  
Minimum Number ◽  
Squirrel Glider ◽  
Urban Matrix

This paper provides an overview of our current ecological research on squirrel gliders (Petaurus norfolcensis) living in forest-remnants within an urban matrix in south-east Queensland. We have conducted population censuses and behavioural observations primarily in one 60-ha remnant. The number of tagged gliders (minimum number known alive) in this remnant varied from 75 in 2002 when flowering trees were abundant, to 33 the following year when flowering was poor. Poor flowering led to a delay in breeding and a decline in the probability of glider survival. Feeding observations on gliders in the year of abundant flowering revealed that almost 50% of the diet was comprised of nectar and pollen derived from 10 tree species. A more detailed focus on flowering and its influence on population dynamics at several sites would be of considerable value in understanding the population ecology of this species. We assessed the viability of the subpopulations of P. norfolcensis distributed across the various remnants to allow identification of management actions that may improve viability. Viability analyses under various scenarios suggest that our focal metapopulation will have a high likelihood of extinction within the next 100 years. Predictions of population viability are sensitive to changes in life history parameter estimates. Thus, current field-work has been directed by the need for more precise empirical values. The remnants containing our metapopulation need to be functionally linked to larger nearby remnants to enable glider dispersal among sites. We need a better understanding of glider dispersal behaviour and how permeable the urban matrix might be for P. norfolcensis. Arterial roads and freeways sever connections between many remnants, requiring novel approaches to corridor provision. Future research should examine how habitat quality of the remnants changes over time due to tree die-back and wind-throw. We are investigating the potential role of nest boxes to facilitate glider dispersal and to supplement the availability of den trees. The findings of our studies should contribute to a greater understanding of the general conservation requirements of P. norfolcensis.

Urban realities: the contribution of residential gardens to the conservation of urban forest remnants

2009 ◽  
Vol 19 (5) ◽  
pp. 1385-1400 ◽  
Author(s):  
Brendan J. Doody ◽  
Jon J. Sullivan ◽  
Colin D. Meurk ◽  
Glenn H. Stewart ◽  
Harvey C. Perkins
Keyword(s):  
Urban Forest ◽  
Forest Remnants

scholarly journals Three new species of Mesabolivar (Aranea, Pholcidae) from leaf litter in urban environments in the city of São Paulo, São Paulo, Brazil

2007 ◽  
Vol 97 (2) ◽  
pp. 168-176 ◽  
Author(s):  
Éwerton O. Machado ◽  
Antonio D. Brescovit ◽  
David F. Candiani ◽  
Bernhard A. Huber
Keyword(s):  
Urban Forest ◽  
Abundant Species ◽  
Sao Paulo ◽  
Urban Environments ◽  
Metropolitan Region ◽  
Pitfall Traps ◽  
São Paulo ◽  
Forest Remnants ◽  
Three New Species ◽  
The City

In this study we describe three new litter inhabiting species of Mesabolivar González-Sponga, 1998 from nine urban forest remnants in the metropolitan region of the city of São Paulo, Brazil: M. forceps, M. mairyara and M. cavicelatus. In three of these remnants, we conduced a three year sampling using pitfall traps. Mesabolivar forceps sp. nov. was the most abundant pholcid (n=273 adults), always present in the samples, but with highest numbers in spring and summer. Mesabolivar mairyara sp. nov. was the second most abundant species (n=32), but the majority of individuals were collected in March 2001. Only three individuals of M. cavicelatus sp. nov. were collected.

Home range and den use of common brushtail possums (Trichosurus vulpecula) in urban forest remnants

2005 ◽  
Vol 32 (8) ◽  
pp. 681 ◽  
Author(s):  
Michael J. Harper
Keyword(s):  
Home Range ◽  
Urban Forest ◽  
Brushtail Possum ◽  
Urban Landscapes ◽  
Trichosurus Vulpecula ◽  
Residential Areas ◽  
Minimum Convex Polygon ◽  
Close Proximity ◽  
Forest Remnants ◽  
Den Use

The common brushtail possum (Trichosurus vulpecula) is an arboreal marsupial that has adapted well to urban landscapes. Fifteen adult possums (12 female, 3 male) caught in small patches of indigenous vegetation (remnants) in the south-east of metropolitan Melbourne were radio-tracked over a three-month period to investigate nocturnal behaviour and den use. Minimum convex polygon (100%) home-range estimates of both female (1.02 ± 0.28 ha) and male (1.19 ± 0.33 ha) urban brushtail possums trapped in urban forest remnants appear to be smaller than those previously reported for urban brushtail possums. All the brushtail possums foraged extensively in remnants but made repeated forays into adjacent residential areas. The use of few dens, by both female (2.21 ± 0.35 ha) and male (2.51 ± 1.45 ha) brushtail possums, in close proximity to their nocturnal ranges is similar to the behaviour of non-urban brushtail possums

scholarly journals Bats from the Pedra Branca Forest, Rio de Janeiro, Brazil

2021 ◽  
Vol 9 ◽  
Author(s):  
Jonatas Tavares ◽  
Roberto Novaes ◽  
Iuri Veríssimo ◽  
Maria Alice Kuzel ◽  
Sócrates da Costa-Neto ◽  
...  
Keyword(s):  
Atlantic Forest ◽  
Geographic Distribution ◽  
Rio De Janeiro ◽  
Urban Forest ◽  
Conservation Units ◽  
Biological Station ◽  
Natural Park ◽  
Forest Remnants ◽  
Janeiro City ◽  
Biological Reserve

The Pedra Branca Forest is located in a highly-urbanised region of the central portion of Rio de Janeiro City, comprises the largest urban forest on the continent and is isolated from other Atlantic Forest remnants. The local flora and fauna are protected by three conservation units (Pedra Branca State Park, Prainha Municipal Natural Park and Guaratiba State Biological Reserve) and one biological station (Fiocruz Atlantic Forest Biological Station—EFMA). Here, we provide an updated list of the bat fauna for the remnant. The results are based on samplings at EFMA and literature data from Pedra Branca State Park and Prainha Natural Park. The three sampling sites combined resulted in 31 species, 23 genera and four families. Phyllostomidae was the richest family with 24 species, followed by Vespertilionidae with five species (3%) and Molossidae and Noctilionidae with one species. The local bat fauna was predominantly composed of species with a broad geographic distribution.

Richness, composition and trophic niche of stingless bee assemblages in urban forest remnants

2012 ◽  
Vol 16 (3) ◽  
pp. 527-541 ◽  
Author(s):  
Yasmine Antonini ◽  
Rogério Parentoni Martins ◽  
Ludmilla Moura Aguiar ◽  
Rafael Dias Loyola
Keyword(s):  
Urban Forest ◽  
Trophic Niche ◽  
Stingless Bee ◽  
Forest Remnants

scholarly journals TOPOPHILIA AND ENVIRONMENTAL VALUATION OF URBAN FOREST FRAGMENTS IN AN AMAZONIAN CITY

2018 ◽  
Vol 21 (0) ◽  
Author(s):  
HENRIQUE DOS SANTOS PEREIRA ◽  
STEPHANY ANRY KUDO ◽  
SUZY CRISTINA PEDROZA DA SILVA
Keyword(s):  
Urban Landscape ◽  
Urban Forest ◽  
Environmental Valuation ◽  
Forest Fragments ◽  
Environmental Resources ◽  
Socioeconomic Variables ◽  
Consumptive Use ◽  
Forest Remnants ◽  
Positive Feelings ◽  
The City

Abstract The factors that can influence the environmental valuation of urban forest fragments (UFFs) in two neighborhoods of the city of Manaus (AM) were assessed. The valuation data were obtained through the technique of pile sorting followed by ranking, considering 14 socioenvironmental attributes. Most of the residents (59%, N = 69) mentioned positive feelings (topophilia) regarding the conservation of the fragments in the urban landscape. The attributes associated with the ecocentric vision were those that received the highest positive values, followed by anthropocentric attributes associated with the direct non-consumptive use of environmental resources, such as “aesthetic” and “learning”. Residents who live closer tended to value the fragment more than distant residents, and the opposite occurred when there was an association between the presence of the fragment and violence and crime in the neighborhood. Among the socioeconomic variables investigated, only the time as a resident seemed to be related to the way the city residents value these forest remnants.

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