Hedgerows as habitat corridors for forest herbs in central New York, USA

Corbit, Margaret; Marks, P. L.; Gardescu, Sana

doi:10.1046/j.1365-2745.1999.00339.x

Cited by 111 publications

(93 citation statements)

References 31 publications

(57 reference statements)

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“…This observation is in accordance with the surveys conducted in other geographical regions, where road verges offer alternative habitats, for example for 70% of forest herbs in the USA [46] and for 80% of grassland flora in Central Europe [47]. In Poland, railway embankments have been recognized as refuge areas for ca.…”

Section: Factors Affecting Flowering Plants -Railway Embankments Vs supporting

confidence: 88%

Distribution and abundance of bee forage flora across an agricultural landscape – railway embankments vs. road verges

Wrzesień

Denisow

2016

Acta Soc Bot Pol

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In this study, we evaluated if railway embankments and road verges create refuge habitats for bee flora across agricultural landscape. The survey was conducted in 2009-2012, in the Lublin Province, SE Poland. Data on the bee forage flora were obtained while making floristic charts along 60 transect plots × 300 m, with a total length of 18 000 m, for each type of linear structure. Forage bee flora was compared with respect to species richness, diversity, and evenness indices. The canonical correspondence analysis (CCA) was used to characterize relationship between species composition and environmental variables. The bee forage species richness and abundance were significantly greater on railway embankments than on road verges. The composition of species varied considerably; the number of bee forage species common to both habitats was only approximately 38% in entire data set. Most good-value bee forage species were recorded along the embankments of railways with an intermediate traffic volume. Bee forage species diversity benefits from the location of habitat elements (forests or meadows), primarily if the distance is <50 m. The lack of dense patches of valuable bee forage species in the road verges was related to the high density of non-nectariferous graminoids. Our results demonstrate how the value of man-made areas in an agricultural ecosystem can vary with respect to floral resources across the landscape, suggesting that it is inappropriate to generalize about agricultural systems as a whole without first addressing differences among habitats.

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Section: Factors Affecting Flowering Plants -Railway Embankments Vs supporting

confidence: 88%

Distribution and abundance of bee forage flora across an agricultural landscape – railway embankments vs. road verges

Wrzesień

Denisow

2016

Acta Soc Bot Pol

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“…It may be that restoration work is needed in these hedgerows in order to improve species diversity, especially in those areas where woodlands are not present in the vicinity and where seeds are unlikely to reach these habitats. The ecological environment around any hedgerows/field margins also influences the composition of species due to dispersal of seeds by wind or animals or colonisation from nearby woodlots (Corbit et al 1999).…”

Section: Discussionmentioning

confidence: 99%

Comparing weed composition in natural and planted hedgerows and in herbaceous field margins adjacent to crop fields

Boutin¹,

Jobin²,

Bélanger³

et al. 2001

Can. J. Plant Sci.

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Choinière, L. 2001. Comparing weed composition in natural and planted hedgerows and in herbaceous field margins adjacent to crop fields. Can. J. Plant Sci. 81: 313-324. Hedgerows and field margins are common features of the agricultural landscape in southern Québec. In the last decade, hedgerow establishment has been encouraged primarily for the prevention of soil erosion, though many farmers view them as reservoirs of invasive weeds and pests. In this study, we compared weed assemblages of several hedgerow types and herbaceous field margins. Ranking that takes into consideration weed abundance was clearly demonstrated: planted hedgerows > herbaceous field margins > natural woody hedgerows. The latter harboured many perennial plant species of less weedy propensity than planted hedgerows, which accommodated a larger number of weedy species. In planted hedgerows close to 50% of plants were weeds, even in their central position, although planted and natural hedgerows sheltered similar weed composition in their central parts. Likewise, most species inventoried in adjacent fields were weeds. Weeds characterising the central position of hedgerows/field margins were often species of wet habitats (Lythrum salicaria L., Equisetum arvense L., Cicuta maculata L.). Management practices of hedgerows and perhaps of crop fields adjacent to hedgerows may be mostly responsible for the abundance of weeds in hedgerows and field margins. Les haies brise-vent et les bordures herbacées font partie intégrante du paysage agricole du Québec méridional. L'implantation de haies a récemment été encouragée pour réduire les problèmes liés à l'érosion éolienne mais plusieurs producteurs agricoles voient toujours les haies comme des réservoirs d'espèces nuisibles. Nous avons étudié la composition et la distribution des espèces végétales nuisibles aux cultures dans différents types de haies et un patron clair de l'abondance de ces espèces a été trouvé: haies plantées > bordures herbacées > haies naturelles boisées. Ce dernier type de haie abritait plus d'espèces vivaces non nuisibles aux cultures que les haies plantées lesquelles abritaient surtout des espèces nuisibles. Ainsi, plus de 50% des espèces retrouvées dans les haies plantées étaient des espèces nuisibles, même celles présentes au centre des haies, malgré le fait que la composition spécifique des espèces nuisibles retrouvées au centre des haies naturelles et plantées était similaire. La plupart des espèces inventoriées dans les champs adjacents étaient aussi des espèces nuisibles. Plusieurs des espèces nuisibles retrouvées au centre des haies et des bordures herbacées sont typiques des milieux humides (Lythrum salicaria L., Equisetum arvense L., Cicuta maculata L.). La présence d'espèces nuisibles dans les haies brise-vent et dans les bordures herbacées semble être une conséquence de l'aménagement des haies en soi et possiblement des pratiques agricoles ayant cours dans les champs cultivés adjacents.

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“…Boundary type, which was also found to be a significant factor, can influence vegetation in a variety of ways, acting as a physical barrier to ungulate movement or, in the case of hedges, acting as refugia (McCollin et al 2000;Smart et al 2001) or dispersal pathways for forest herb species, as demonstrated in central New York, USA (Corbit et al 1999). Adjacent water bodies such as streams and rivers aid dispersal of both terrestrial and riparian plant species (e.g.…”

Section: - mentioning

confidence: 99%

Relationships between the species composition of forest field‐layer vegetation and environmental drivers, assessed using a national scale survey

et al. 2006

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Summary1 Simulation models of forest stand dynamics have increased understanding of over-storey vegetation functioning, and have facilitated the development of tools capable of assessing possible successional trajectories. However, few models incorporate the response of the field layer vegetation despite it being another key component of forest ecosystems. 2 Our main objective was to assess the degree to which field-layer vegetation composition in forests is determined by variables operating at different scales, from regional (e.g. climate, location) to local factors (e.g. basal area of canopy trees, management). 3 We used data gathered during a nationwide forest survey to assess the relative effects of a broad spectrum of environmental variables on species composition. Variation partitioning was used to examine the relative contribution of subsets of environmental variables such as site spatial variation, boundary type and presence of herbivores. 4 Ordination confirmed hypotheses that field layer vegetation is primarily structured by two composite geo-climatic gradients. However, variation partitioning demonstrated that site-and plot-scale management factors also strongly influence the floristic composition of forest patches. 5 Disturbance variables (site boundary type/regional presence of deer) accounted for considerable species variation, exceeding that due to either site spatial variation or forest structure. 6 This is the first time variation attributable to such a comprehensive range of environmental variables has been quantified for forests surveyed at a national scale. We thus provide a context within which regional studies, or analyses considering a more limited range of factors, can be viewed, and a framework from which robust models of floristic response to gradual and episodic natural and anthropogenic disturbances may be developed. 7 The methodology we present, including a novel technique for the identification and removal of outliers in large data sets, provides a unique and standardized means of assessing the relative importance of diverse environmental drivers across a range of habitat types at the landscape scale, and is readily applicable elsewhere.

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Hedgerows as habitat corridors for forest herbs in central New York, USA

Cited by 111 publications

References 31 publications

Distribution and abundance of bee forage flora across an agricultural landscape – railway embankments vs. road verges

Distribution and abundance of bee forage flora across an agricultural landscape – railway embankments vs. road verges

Comparing weed composition in natural and planted hedgerows and in herbaceous field margins adjacent to crop fields

Relationships between the species composition of forest field‐layer vegetation and environmental drivers, assessed using a national scale survey

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