Long-term effects of forest management on territory occupancy and breeding success of an open-nesting boreal bird species, the Siberian jay

2012 ◽  
Vol 271 ◽  
pp. 58-64 ◽  
Author(s):  
Michael Griesser ◽  
Sarah Lagerberg
Keyword(s):  
Forest Management ◽  
Breeding Success ◽  
Bird Species ◽  
Long Term Effects ◽  
Territory Occupancy

scholarly journals Nachhaltiges Holzproduktionspotenzial im Schweizer Wald

2011 ◽  
Vol 162 (9) ◽  
pp. 300-311 ◽  
Author(s):  
Edgar Kaufmann
Keyword(s):  
Forest Management ◽  
Management Strategies ◽  
National Forest Inventory ◽  
Forest Area ◽  
Long Term Effects ◽  
Growing Stock ◽  
Rotation Periods ◽  
The Impact ◽  
Harvesting Costs

Potential of sustainable wood production in Swiss forests In the Swiss National Forest Inventory (NFI), the data collected in the three inventories (NFI1 1983–1985, NFI2 1993–1995, NFI3 2004–2006) provide the basis not only for analysing the present state of the forest and how it has developed up to now, but also for assessing, with the help of models, how it might develop in future. The scenario model «Massimo 3», developed at the Swiss Federal Institut for Forest, Snow and Landscape Research, is an empirical and stochastic simulation model. It relies on data from the NFI and forecasts the development of the forest according to how it is managed. Six scenarios with different management regimes were defined according to the economic, silvicultural and ecological aspects considered. In three scenarios the growing stock is kept constant at the level of NFI3, but different management strategies are used (Scenario A: basis [business as usual], Scenario E: even-aged forests are transformed into uneven-aged forests, and Scenario F: near-natural percentages of conifers are promoted). In two scenarios forest management is partially abandoned for either ecological reasons (Scenario B: reservations, 10% of the forest area is left unmanaged) or for economic reasons (Scenario C: harvesting costs, 40% of the forest area is left unmanaged). Scenario D (rotation periods are shortened) was used to study the effects of augmenting the annual harvesting amount. A forecasting time period of 100 years was selected to assess the long-term effects of the scenarios. Scenarios A, D, and E show that the sustainable harvesting potential of merchantable wood lies in a relatively narrow range of 7.1 to 7.3 million m3/year, even though in Scenario D the growing stock is reduced from 360 m3/ha to 305 m3/ha. In Scenario F regeneration is systematically established with near-natural percentages of conifers, the long-term harvesting potential is slightly less: about 6.5 million m3/year of merchantable wood. If forest management is abandoned for economic reasons on as much as 40% of the forest area (Scenario C, harvesting costs), the impact on the wood reserves is very negative.

Long-term effects of fragmentation and fragment properties on bird species richness in Hawaiian forests

2010 ◽  
Vol 143 (2) ◽  
pp. 280-288 ◽  
Author(s):  
David J. Flaspohler ◽  
Christian P. Giardina ◽  
Gregory P. Asner ◽  
Patrick Hart ◽  
Jonathan Price ◽  
...  
Keyword(s):  
Species Richness ◽  
Bird Species ◽  
Long Term Effects ◽  
Bird Species Richness

Long-term effects of forest management on nutrient cycling in spruce-fir forests

2000 ◽  
Vol 138 (1-3) ◽  
pp. 285-299 ◽  
Author(s):  
R.D Briggs ◽  
J.W Hornbeck ◽  
C.T Smith ◽  
R.C Lemin ◽  
M.L McCormack
Keyword(s):  
Forest Management ◽  
Nutrient Cycling ◽  
Long Term Effects

Long-term effects of traditional and conservation-oriented forest management on the distribution of vertebrates in Mediterranean forests: a hierarchical hybrid modelling approach

2015 ◽  
Vol 21 (10) ◽  
pp. 1141-1154 ◽  
Author(s):  
Mirko Di Febbraro ◽  
Federica Roscioni ◽  
Ludovico Frate ◽  
Maria Laura Carranza ◽  
Lorenzo De Lisio ◽  
...  
Keyword(s):  
Forest Management ◽  
Mediterranean Forests ◽  
Long Term Effects ◽  
Hybrid Modelling ◽  
Modelling Approach

scholarly journals Bird Occupancy of a Neotropical Forest Fragment Is Mostly Stable over 17 Years but Influenced by Forest Age

Diversity ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 50
Author(s):  
Marconi Campos-Cerqueira ◽  
W. Douglas Robinson ◽  
Gabriel Augusto Leite ◽  
T. Mitchell Aide
Keyword(s):  
Bird Species ◽  
Barro Colorado Island ◽  
Tropical Species ◽  
Forest Age ◽  
Forest Fragment ◽  
Long Term Effects ◽  
Old Growth ◽  
Data Set ◽  
Old Growth Forest

The effects of forest degradation, fragmentation, and climate change occur over long time periods, yet relatively few data are available to evaluate the long-term effects of these disturbances on tropical species occurrence. Here, we quantified changes in occupancy of 50 bird species over 17 years on Barro Colorado Island (BCI), Panama, a model system for the long-term effects of habitat fragmentation. The historical data set (2002–2005) was based on point counts, whereas the contemporary data set (2018) was based on acoustic monitoring. For most species, there was no significant change in occupancy; however, the occupancy of four species (Tinamus major, Polioptila plumbea, Myiarchus tuberculifer, and Ceratopipra mentalis) increased significantly, and the occupancy of three species (Saltator grossus, Melanerpes pucherani, and Cyanoloxia cyanoides) decreased significantly. Forest age explained the majority of occupancy variation and affected the occupancy of more bird species than survey period or elevation. Approximately 50% of the species seem to favor old-growth forest, and 15 species (30%) had a significantly higher occupancy in old-growth forest sites. Elevation had no significant impact on the occupancy of the majority of bird species. Although BCI has been a protected reserve for approximately 100 years, land-use legacies (i.e., forest age) continue to influence bird distribution.

scholarly journals Glimpse of avian diversity near Mithiviradi Village, Bhavnagar District, Gujarat, India

2020 ◽  
pp. 40-43
Author(s):  
Viral M. Vaghela ◽  
Pravinsang P Dodia
Keyword(s):  
Bird Species ◽  
Biological Indicators ◽  
Avian Diversity ◽  
Long Term Effects ◽  
Health Changes

Birds are very good biological indicators of environment health. Changes in various activity of bird can be used to check the long term effects of changes in habitat. The study was conducted to find out the diversity of birds in and around Mithiviradi village (21o3006 N; 72o1349E) located in Talaja tehsil, Bhavnagar, Gujarat. The avian diversity was surveyed during Jan. 2016 to Jan. 2018. During the survey total 104 bird species were recorded out of this 78 species were residential and breeding, 15 species were migratory, and 09 were resident, breeding and migratory. This avian diversity represents 16 orders and 50 families.

Effects of the Iron Baron oil spill on little penguins (Eudyptula minor). III. Breeding success of rehabilitated oiled birds

2000 ◽  
Vol 27 (6) ◽  
pp. 583 ◽  
Author(s):  
M. Giese ◽  
S. D. Goldsworthy ◽  
R. Gales ◽  
N. Brothers ◽  
J. Hamill
Keyword(s):  
Breeding Season ◽  
Oil Spill ◽  
Breeding Success ◽  
Egg Laying ◽  
Long Term Effects ◽  
Short Term ◽  
Significant Difference ◽  
Breeding Seasons

The long-term effects of oiling on the breeding success of rehabilitated oiled little penguins (Eudyptula minor) were examined over two consecutive breeding seasons following the Iron Baron oil spill in 1995. The commencement of egg laying was delayed among rehabilitated oiled penguins compared with non-oiled birds during the 1995/96 breeding season. During that season, hatching success (number of eggs hatched from those laid) was no different in nests containing rehabilitated oiled penguins than in those containing non-oiled birds, but overall egg success (number of pre-fledging chicks from the number of eggs laid) was significantly lower among rehabilitated oiled birds. This effect was predominant in nests containing a rehabilitated oiled female, where the probability of successfully fledging any chicks was 22% lower than in nests containing a non-oiled female. During the 1996/97 breeding season, there was no significant difference between either the hatching or egg success of rehabilitated oiled penguins and non-oiled birds. In both seasons, the pre-fledging masses of chicks from rehabilitated oiled penguins were significantly lower than those from non-oiled birds. The chicks of rehabilitated oiled penguins were therefore expected to have lower survival than chicks raised by non-oiled parents. Results indicate that oiling not only reduced the number of chicks raised by rehabilitated oiled penguins in the short term, but also decreased the quality of young produced for at least two seasons following the spill.

The relationship between forest management and amphibian ecology: a review of the North American literature

1995 ◽  
Vol 3 (3-4) ◽  
pp. 230-261 ◽  
Author(s):  
Phillip G. deMaynadier ◽  
Malcolm L. Hunter Jr.
Keyword(s):  
Forest Management ◽  
Prescribed Fire ◽  
Coarse Woody Debris ◽  
Woody Debris ◽  
Forest Harvesting ◽  
Long Term Effects ◽  
Clear Cutting ◽  
Forest Practices ◽  
Logging Roads

Questions about the compatibility of forest harvesting practices and conservation of biological diversity are largely driven by concerns that habitat quality for many species may be degraded in intensively managed forest landscapes. We review the literature on relationships between common forest harvesting practices and the distribution and abundance of amphibians, a group that has attracted considerable attention in recent years because of their potential ecological importance in forest ecosystems and because of reports of widespread population declines. Clear-cut harvesting generally has negative short-term impacts on local amphibian populations, especially salamanders. An analysis of the results of 18 studies that examined the effects of clear-cutting on amphibians yielded a 3.5-fold median difference in abundance of amphibians on controls over clear-cuts. However, research on the influence of forest age suggests that the long-term effects of forest harvesting on amphibians are variable, and for many species these effects can be mitigated if regeneration practices leave adequate microhabitat structure intact. In contrast, long-term effects can be significant in forest plantations, which are often associated with intensive site preparations and stand management practices that modify levels of coarse woody debris and other microhabitats. Other forest practices reviewed for their effect on amphibians include prescribed fire, logging roads, and streamside harvesting. We discuss problems commonly encountered in the experimental design and measurement of forest amphibian populations, including a notable lack of pretreatment data, and outline several aspects of amphibian–forestry relationships in need of further research. Management recommendations relevant to conserving upland and riparian zone amphibian habitat during forest harvesting are offered.Key words: amphibians, clear-cutting, coarse woody debris, forest management, logging roads, plantations, prescribed fire, riparian, succession.

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