Avian communities in riparian forests of different widths in Maryland and Delaware

Keller, Cherry M. E.; Robbins, C.S.; Hatfield, Jeff S.

doi:10.1007/bf03160874

Cited by 88 publications

(50 citation statements)

References 16 publications

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“…Although several studies have examined effective widths of riparian buffers for birds, many of those studies examined forested buffers embedded in agricultural lands (e.g., Stauffer and Best 1980;Keller et al 1993;Spackman and Hughes 1995;Peak and Thompson 2006). Island biogeography theory (MacArthur and Wilson 1967) is often referenced to explain species diversity and use of these habitat fragments.…”

Section: Introductionmentioning

confidence: 99%

Width of riparian buffer and structure of adjacent plantations influence occupancy of conservation priority birds

et al. 2011

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Conservation of biodiversity on forest landscapes dominated by plantations has become an increasingly important topic, and opportunities to maintain or enhance biodiversity within these forests need to be recognized and applied. Riparian buffers of mature forest retained along streams in managed forest landscapes offer an opportunity to enhance biodiversity across these landscapes. However, influence of buffer width and structure of adjacent plantations on habitat use by birds is not well understood. We modeled probability of occupancy, while accounting for variable detection probabilities, for 16 bird species of regional conservation importance in the Ouachita Mountains of Arkansas, USA. We examined occurrence of breeding birds in streamside management zone (SMZ) buffers embedded in three structural classes of pine plantation: young open-canopy, closed-canopy, and older thinned plantations. Our occupancy models included a positive association with SMZ width for nine bird species associated with mature forests. Models for three early successional species (prairie warbler [Dendroica discolor], white-eyed vireo [Vireo griseus], and northern bobwhite [Colinus virginianus]) included a negative association with SMZ width. Occupancy models for Acadian flycatcher (Empidonax virescens), summer tanager (Piranga rubra), pine warbler (Dendroica pinus), prairie warbler, and northern bobwhite also included structural condition of adjacent plantations, but most species did not appear affected by condition of surrounding plantations. We found diverse responses among species to width of retained SMZs and structure of adjacent plantations; some species apparently benefitted from SMZs[100 m wide, while others benefitted from narrow buffers. Furthermore, most species traditionally associated with mature forests were common in narrow SMZs, regardless of width. Thus, optimal width of SMZs relative to avian conservation depends on the species of greatest conservation interest.

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Section: Introductionmentioning

confidence: 99%

Width of riparian buffer and structure of adjacent plantations influence occupancy of conservation priority birds

et al. 2011

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“…의 동적 특성 때문에 시간 차원 지속 (dynamic nature) ( Ward, 1989 지역에서의 종의 지속성에 기여한다 (Shisler et al, 1987;Castelle et al, 1992;Keller et al, 1993;Friesen 또한 육역서식처의 연결은 et al, 1995;Gibbs, 2000). , (Fig.…”

Section: 의 수문분석 또한 필요하다 (Over Time)unclassified

Flow Analysis Based on the Recovery of Lateral Connectivity in the River

Lee¹,

Chun²,

Kim³

et al. 2014

Journal of Wetlands Research

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Recently, river maintenance is change due to concern for the environment increases. Thus, the river restoration and river environment is best part of river maintenance. In case of Korea, existing river is improvement straightly for flood control and transportation. When the stream channel is straightly, maintain stability is important. Thus, construction of levees along the river. The various river structures for the purpose of flood control and transportation are inhibit factors of longitudinal and lateral connectivity. Connectivity is defined as the maintenance of lateral, longitudinal, and vertical pathways for biological, hydrological, and physical processes. Long-term point of view, increased connectivity is very important for a healthy ecosystem composition. As the first step of river restoration, this study described theory and concept of river continuum and the numerical model was applied to a real topography to simulate the flow analysis with or without segregated and blocked space in the Mankyung river. The results of this study can be utilized to develop the watershed connectivity assessments methods in order to the river restoration.

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“…The parameters use for setting the suitability threshold with regard to economic reason were taken from National Forest policy 1992 and National Forestry Act 1993,report by Muziol (1999) under a Malaysian-German Technical Cooperation Project for sustainable forest management and conservation. In designing a hydrological buffer, reviews of related scientific literature were carried out (see Wenger, 1999;Hodges and Krementz, 1996;Keller et al, 1993;Kinley and Newhouse, 1997, Spackman and Hughes, 1995and Mitchell, 1996. Table 4 show the class boundaries and standardised measurement employed for each criterion.…”

Section: Standardization (Rating) Of Criteriamentioning

confidence: 99%

Developing Policy for Suitable Harvest Zone using Multi Criteria Evaluation and GIS-Based Decision Support System

Ismail¹

2009

IJEF

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Natural resources management often entails making choices among alternatives. Decision support tools are instruments for making rational decisions, particularly geographical information system (GIS) technology-incorporates the multi criteria evaluations (MCE) and analytic hierarchy process (AHP). Therefore, the objective of this study is to determine the suitable forest harvest zone in hill tropical forest in Peninsular Malaysia using MCE and GIS as a tool for decision support system. The implementation of the AHP method for MCE has shown the capabilities of integration of a GIS and decision support system, where the data was prepared spatially in a GIS, an analysis is performed with the systematic evaluation method. The MCE allows both constraint and criteria maps to be combined in arithmetic operation in a suitability analysis, and also allows for criteria maps to be assigned variable weights. From the weights derived from the AHP method, it can be seen that slope and elevation were strong factors in allocating the suitable harvest zone (0.63 and 0.29). The hydrological aspect is the third most important factor, with 0.07. The total suitable area for productive forest zone was 9757.30 ha (96.06%) and the designated protected forest was about 399.20 ha (3.94%). This implies the importance of certain forest land to be classified as a restricted area for logging purposes to ensure the sustainable forest ecosystem and water resources. This result demonstrated that the methodology used has high potential and functionality for determining suitable forest harvest zone from several criteria for hill forest. Finally, it can be concluded that, MCE incorporating GIS provides an ideal tool and essential in modelling with flexibility and the ability for spatial modelling operation for site suitability study in hill forest of Peninsular Malaysia.

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Avian communities in riparian forests of different widths in Maryland and Delaware

Cited by 88 publications

References 16 publications

Width of riparian buffer and structure of adjacent plantations influence occupancy of conservation priority birds

Width of riparian buffer and structure of adjacent plantations influence occupancy of conservation priority birds

Flow Analysis Based on the Recovery of Lateral Connectivity in the River

Developing Policy for Suitable Harvest Zone using Multi Criteria Evaluation and GIS-Based Decision Support System

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