Plant species richness in the Chaco Serrano Woodland from central Argentina: Ecological traits and habitat fragmentation effects

Cagnolo, Luciano; Cabido, Marcelo; Valladares, Graciela

doi:10.1016/j.biocon.2006.05.012

Cited by 77 publications

(79 citation statements)

References 61 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…As a result, the landscape is highly fragmented with small, isolated remnants surrounded by a matrix of agricultural lands. The negative consequences of habitat fragmentation on plants and animals are numerous and have been studied extensively (e.g., Kruess and Tscharntke, 1994;Quinn, 2004;Wilsey et al, 2005;Benedick et al, 2006;Cagnolo et al, 2006). Because smaller fragments have a higher edge-to-area ratio than larger fragments (Webb, 1989;Kiviniemi and Eriksson, 2002;Benedick et al, 2006), they are more susceptible to invasion by non-native species (e.g., Kiviniemi and Eriksson, 2002;Hansen and Clevenger, 2005).…”

Section: Introductionmentioning

confidence: 99%

Butterfly responses to prairie restoration through fire and grazing

Vogel

Debinski

Koford

et al. 2007

Biological Conservation

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Butterfly responses to prairie restoration through fire and grazing

Vogel

Debinski

Koford

et al. 2007

Biological Conservation

View full text Add to dashboard Cite

“…The species-area relationship (SAR) hypothesises that smaller patches have a less heterogeneous environment, supporting fewer species (Gleason 1922(Gleason , 1925Williams 1943;MacArthur and Wilson 1967;Connor and McCoy 1979). Recent studies by Godefroid and Koedam (2003), Cagnolo et al (2006), Aparicio et al (2008), Brown and Boutin (2009), Gonzalez et al (2010) and Laurance et al (2011) have supported this relationship. Smaller, and therefore more isolated, patches are predicted to support smaller, genetically similar species populations that are vulnerable to localised extinction from disease, population decline and altered microclimatic conditions (Connor and McCoy 1979;Baldwin and Bradfield 2007;Shapcott et al 2009).…”

Section: Introductionmentioning

confidence: 74%

Do habitat fragmentation and fire influence variation of plant species composition, structure and diversity within three regional ecosystems on the Sunshine Coast, Queensland, Australia?

Etherington

Shapcott

2014

Aust. J. Bot.

View full text Add to dashboard Cite

Abstract.Habitat fragmentation is considered to be one of the greatest threats to biodiversity. Species richness is predicted to decrease with decreasing patch size and increasing isolation, and this has been shown in some ecosystems. However, few studies have specifically investigated the effects of fragmentation on specific vegetation types, or compared different vegetation types within the same region. In this study, we assessed the influence of habitat fragmentation and time since fire on the floristic composition, structure and diversity of three ecosystems with varying fire proneness within the Sunshine Coast region. This study found that the tall-open forest ecosystem (RE 12.9-10.14) had higher overall species richness within fixed sample areas used for this study than did either open forest (RE 12.5.3) or gallery rainforest (RE 12.3.1), because it was composed of species typical of each of these ecosystem types. Open forest species richness was found mostly in the lower stratum, whereas gallery rainforest diversity was found in the upper stratum. Species richness decreased with increasing isolation in the open forest ecosystem where seeds are mostly abiotically dispersed. However, this study did not find strong evidence for reduced species richness within smaller patches in any ecosystem type studied; instead, finding species richness decreased with increasing patch size in the open forest ecosystem. Overall, across ecosystems, time since fire affected vegetation structure, but in fire-prone ecosystems, time since fire was not a determinant of species richness within the sites studied.

show abstract

“…The study area was formerly dominated by Aspidosperma quebrachoblanco and Schinopsis marginata subtropical seasonally dry forests [Sayago, 1969;Zak and Cabido, 2002]. Despite many outstanding features in terms of biodiversity values [Molina et al, 1999;Cagnolo et al, 2006;Torrella et al, 2013] and ecosystem services [Conti and Diaz, 2013;Cáceres, 2014], which make these complex ecosystems worthy of protection, the Gran Chaco, is one of the main deforestation areas of Latin America [Grau and Aide, 2008;Hansen et al, 2012]. During the last three decades the generalized expansion of agriculture [Zak et al, 2008;Hoyos et al, 2013], driven by global trends in technology and soybean markets [Grau et al, 2005], but also by global changes in the precipitation regimes [Hoyos et al, 2013], have promoted a sharp drop of the Gran Chaco natural forests.…”

Section: Study Areamentioning

confidence: 99%

Measuring forest fragmentation using multitemporal remotely sensed data: three decades of change in the dry Chaco

Carranza

Frate

Acosta

et al. 2014

European Journal of Remote Sensing

Self Cite

View full text Add to dashboard Cite

We introduce an approach based on remotely sensed data to summarize forest fragmentation over time, which specifically accounts for the interdependencies between landscape composition and configuration changes. The proposed method consists of five steps: i) multitemporal landscape sampling, ii) calculation of selected landscape pattern indices, iii) statistical comparison, iv) construction of sampled-based relationship spaces, and v) trajectory analysis. To show how the proposed method works in practice we examined the multitemporal fragmentation of the Arid Chaco forest in central Argentina during the period 1979-2010 using forest maps derived from Landsat images. As shown by our results, the approach provides a consistent framework for the interpretation of landscape structural changes over time.

show abstract

Plant species richness in the Chaco Serrano Woodland from central Argentina: Ecological traits and habitat fragmentation effects

Cited by 77 publications

References 61 publications

Butterfly responses to prairie restoration through fire and grazing

Butterfly responses to prairie restoration through fire and grazing

Do habitat fragmentation and fire influence variation of plant species composition, structure and diversity within three regional ecosystems on the Sunshine Coast, Queensland, Australia?

Measuring forest fragmentation using multitemporal remotely sensed data: three decades of change in the dry Chaco

Contact Info

Product

Resources

About