Approaching invasive species in Madagascar

Kull, Christian A.; Tassin, Jacques; Carrière, Stéphanie M.

doi:10.4314/mcd.v9i2.2

Cited by 40 publications

(33 citation statements)

References 71 publications

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“…In particular, both pines and acacias have been relatively successful in reproducing themselves and dispersing from initial plantations [94], mirroring their behavior elsewhere [95,96].…”

Section: Political Ecological Context Of Tree Cover Changementioning

confidence: 99%

Forest Transition in Madagascar’s Highlands: Initial Evidence and Implications

McConnell

Viña

Kull

et al. 2015

Land

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Abstract:Madagascar is renowned for the loss of the forested habitat of lemurs and other species endemic to the island. Less well known is that in the highlands, a region often described as an environmental "basket-case" of fire-degraded, eroded grasslands, woody cover has been increasing for decades. Using information derived from publically available high-and medium-resolution satellites, this study characterizes tree cover dynamics in the highlands of Madagascar over the past two decades. Our results reveal heterogeneous patterns of increased tree cover on smallholder farms and village lands, spurred by a mix of endogenous and exogenous forces. The new trees play important roles in rural livelihoods, providing renewable supplies of firewood, charcoal, timber and other products and services, as well as defensible claims to land tenure in the context of a decline in the use of hillside commons for grazing. This study documents this nascent forest transition through Land Change Science techniques, and provides a prologue to political ecological analysis by setting these changes in their social and environmental context and interrogating the costs and benefits of the shift in rural livelihood strategies. OPEN ACCESSLand 2015, 4 1156

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“…In particular, both pines and acacias have been relatively successful in reproducing themselves and dispersing from initial plantations [94], mirroring their behavior elsewhere [95,96].…”

Section: Political Ecological Context Of Tree Cover Changementioning

confidence: 99%

Forest Transition in Madagascar’s Highlands: Initial Evidence and Implications

McConnell

Viña

Kull

et al. 2015

Land

View full text Add to dashboard Cite

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“…For instance, exotic invasive plant species may provide temporary shade for early restoration stages (D'Antonio & Meyerson 2002). Exotic plant species are also considered to be important resources in several societies (Rai et al 2012, Tassin & Kull 2015. Aside from the ecological perspective, socio-economic context also contribute to people's perceptions of exotic and invasive species (Dickman et al 2015, Tassin & Kull 2015.…”

Section: Introductionmentioning

confidence: 99%

“…Exotic plant species are also considered to be important resources in several societies (Rai et al 2012, Tassin & Kull 2015. Aside from the ecological perspective, socio-economic context also contribute to people's perceptions of exotic and invasive species (Dickman et al 2015, Tassin & Kull 2015. Nevertheless, most conservation management priorities for biological invasion focus on negative impacts of exotic species only.…”

Section: Introductionmentioning

confidence: 99%

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Why people may like invasive species: investigating biophilia in botanical gardens adjacent to natural forest ecosystems

Junaedi¹

2018

JTFS

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Botanical gardens are considered as part of tropical invasion pathway. The extent of management effort to minimise plant invasion may be determined by the attitude of people managing botanical gardens. Social aspect may become a hindrance for invasive species management because people may like invasive species for certain reasons. Thus, there is a need to examine aspects that motivate affection of stakeholders for invasive species to minimise conflict of interest during management implementation. In this study, social perceptions of invasive species from four Indonesian botanical gardens were recorded. These botanical gardens are maintaining exotic collection and are situated next to native forests. The objectives of this study were to examine the dominant biophilia-based perception types exhibited by staff of botanical gardens in relation to exotic collections in their botanical gardens and whether these perceptions correlated with demographic factors. In general, dominionistic type dominated social perception of botanical garden staff. There were only minor variations across demographic factors. These findings indicated that inspiration to manage and curiosity to learn about exotic species were main motivations behind biophilia-based perceptions in Indonesian botanical gardens. This valuable information may enhance the strategies to minimise conflict of interests among stakeholders in the management implementation of invasive species.

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“…The first reported sighting was in the port city of Toamasina (Kolby 2014;Kull et al 2014) and since then sightings have been mostly in urban areas and degraded forests in the humid eastern regions (Andreone 2014;Kolby 2014;Moore et al 2015). However, this species may not remain confined to such habitats, as it has a wide geographic distribution across many environmental types in Asia (Srinivasulu and Das 2008).…”

Section: Introductionmentioning

confidence: 99%

Modeling co-occurrence between toxic prey and naïve predators in an incipient invasion

et al. 2016

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Biological invasions can represent important threats to endemic species, including those within the invaders' food webs. The Asian common toad (Duttaphrynus melanostictus) was introduced to Madagascar in 2011. This introduction presents a potentially dangerous prey item to a relatively naïve, highly diverse endemic carnivore fauna. Using a multivariate niche modeling approach (background test), we assessed the predicted niche overlap between D.melanostictus and six endemic carnivores in eastern Madagascar. The overlap between this potential prey and predators was assessed on four environmental niche axes: temperature, precipitation, vegetation cover and elevation. Our results showed a mixture of niche overlap and divergence between D. melanostictus and the six carnivores for environmental axes tested. There was significant overlap with five of the carnivores on temperature and NDVI axes. On the precipitation axis, there was significant overlap between D. melanostictus with two species. Our results suggested that wide-ranging, locally rare carnivores may overlap extensively with D. melanostictus. The six carnivores that inhabit the eastern rainforest of Madagascar will likely share multiple, niche axes with this novel potential prey item. Species that eat the non-native common toad and are susceptible to its toxins are at conservation risk because their populations may not be robust enough to adapt quickly to this threat. We advocate closely monitoring these emerging interactions and suggest a preemptive conservation strategy for carnivores potentially at risk.

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Approaching invasive species in Madagascar

Cited by 40 publications

References 71 publications

Forest Transition in Madagascar’s Highlands: Initial Evidence and Implications

Forest Transition in Madagascar’s Highlands: Initial Evidence and Implications

Why people may like invasive species: investigating biophilia in botanical gardens adjacent to natural forest ecosystems

Modeling co-occurrence between toxic prey and naïve predators in an incipient invasion

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