Phenology and reintroduction strategies for Dendrobium aqueum Lindley – An endemic, near threatened orchid

Parthibhan, Selvaraju; Thiruppathi, S.; Rao, M. S.

doi:10.1016/j.jnc.2014.11.003

Cited by 16 publications

(8 citation statements)

References 7 publications

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“…A 'two-stage translocation' between subpopulations of wild-born Hawaiian monk seals Monachus schauinslandi was suggested to help overcome food shortages for certain age classes in a metapopulation (Baker, Harting & Littnan, 2013). Within many plant translocations involving propagated individuals, 'hardening' has been used to transition plants to acclimatize to wild conditions prior to release (Parthibhana, Kumarb & Raoa, 2015). Within many plant translocations involving propagated individuals, 'hardening' has been used to transition plants to acclimatize to wild conditions prior to release (Parthibhana, Kumarb & Raoa, 2015).…”

Section: Introductionmentioning

confidence: 99%

“…For many bird translocations, techniques of temporarily or permanently 'marooning' populations on predator-free islands, generally outside the indigenous range of the species, have been used in a metapopulation context for recovery (Robertson et al, 2011;Jones & Merton, 2012;Parker, 2013). Within many plant translocations involving propagated individuals, 'hardening' has been used to transition plants to acclimatize to wild conditions prior to release (Parthibhana, Kumarb & Raoa, 2015). However, to the best of our knowledge, the use of established conservation translocation sites within the species' indigenous range to prepare captive-bred individuals for eventual release at other sites has not been tested.…”

Section: Introductionmentioning

confidence: 99%

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Optimizing release strategies: a stepping‐stone approach to reintroduction

Lloyd¹,

Hostetter

Jackson³

et al. 2018

Animal Conservation

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Evaluation of alternative management strategies enables informed decisions to accelerate species recovery. For reintroductions, post-release survival to reproductive age is a key parameter influencing population growth. Here, we trial a 'stepping-stone' method to maximize the success of captive-bred animals when the availability of more suitable wild-born release candidates is limited. Our approach makes use of relatively safe and established wild populations to prepare captive-bred individuals for eventual translocation to a final release destination, thus building resilience through establishment of multiple populations over time. We developed a novel multievent model integrating encounter history and biotelemetry data to evaluate reintroduction strategies for the critically endangered Vancouver Island marmot Marmota vancouverensis. We compared post-release survival of 176 individuals (52 wild-born, 47 captive-bred marmots released directly to destinations, and 77 captive-bred marmots released with a stepping-stone approach). Survival estimates to prime breeding-age (PBA), were then used to quantify expected success of potential release strategies. Our analysis indicates that post-release survival varies by source population and release method, as well as age, season, year, and years since release. Conditional on an objective of maximizing survival to PBA, our results suggest that using wild-born marmots for translocations as often as possible, and stepping-stone captive-bred marmots prior to final release, will result in the best outcomes. There was a 0.86 probability that survival to PBA was greater for captive-bred marmots released as yearlings using a stepping-stone approach (survival to PBA mode = 0.13, 95% CRI = 0.05-0.30) than for captive-bred animals that were directly released to destination sites as one-year-olds (survival to PBA mode = 0.04, 95% CRI = 0.01-0.24). Consequently, the stepping-stone approach yields much higher population establishment or growth potential than previous release strategies that used captive-bred marmots. Optimizing the combination of release candidates, sites and timing can thereby increase the effectiveness of reintroductions.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Optimizing release strategies: a stepping‐stone approach to reintroduction

Lloyd¹,

Hostetter

Jackson³

et al. 2018

Animal Conservation

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“…The plants of this family are particularly vulnerable to anthropogenic disturbances, such as habitat loss, predatory collection and exotic species introduction (Martinelli & Moraes 2013;Endres Júnior et al 2015a;Parthibhan et al 2015). Their restricted distributions and high environmental specificities and endemism make orchids particularly vulnerable to habitat loss (Adhikari et al 2012;Martinelli & Moraes 2013).…”

Section: Introductionmentioning

confidence: 99%

Survival and development of reintroduced Cattleya intermedia plants related to abiotic factors and herbivory at the edge and in the interior of a forest fragment in South Brazil

et al. 2018

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Biotic and abiotic factors, such as luminosity, temperature, air humidity, and herbivory, can affect the establishment of reintroduced plants in natural habitats. This study evaluated the effects of these factors on the survival and growth of Cattleya intermedia plants reintroduced into a forest fragment in South Brazil. Plants of C. intermedia were obtained from in vitro seed germination in asymbiotic culture. Eighty-eight plants were reintroduced at both the forest edge and forest interior. Plants with greater shoot heights and number of leaves and pseudobulbs suffered more damage from herbivores at the edge. There were no significant differences in morphometric parameters between damaged and non-damaged plants in the interior. Tenthecoris bicolor, Helionothrips errans, Ithomiola nepos, Molomea magna and Coleoptera larvae damaged C. intermedia. Luminosity was higher at the edge, while air humidity and temperature were the same in both environments. Herbivory associated with abiotic factors increased plant mortality in the interior, while abiotic factors were determinative of plant survival at the edge. Luminosity is important to the survival of reintroduced epiphytic orchids, and herbivory affects the success of reintroduction.

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“…Many reasons could explain this bias: a) These two families hold more than 75 % of all vascular epiphyte species (Kress, 1986;Zotz, 2013), b) Since epiphyte members of these families represent an important source of food for both birds and insects they get included in many foraging studies (Sazima et al, 1995;Sazima et al, 1996) and c) Many orchid and bromeliad species are widely collected for various purposes (ornamental, medicinal, etc.) which have caused them to become endangered, favoring their study over other non-endangered species (Bonato and Muraro, 2006;Parthibhan et al, 2015).…”

Section: Resultsmentioning

confidence: 99%

Vascular Epiphytes: The Ugly Duckling of Phenological Studies

Martínez¹,

Mondragón²,

García³

2021

Acta biol. Colomb.

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The phenology of vascular epiphytes, which represent account for about 10 % of the world’s flowering plants and perform important ecological functions, has been just partially explored. Since phenology is a key tool for the management and conservation of species, the objective of this review was to synthesize the information published so far about the phenology of vascular epiphytes, detect gaps of knowledge, and suggest future lines of investigation to understand the underlying mechanisms. We conducted an online search for articles in Google Scholar and in the ISI Web of Science database from 1800 to 2020, with different combinations of keywords. 107 studies addressing the phenology of different holo-epiphyte species were found; 88 % of the studies were performed in the Neotropic, especially in tropical and subtropical wet forests. The phenology of only ca.2% (418 spp.) of all reported epiphyte species has been explored. There is a bias toward the study of the flowering and fruiting phenology in members of the Orchidaceae (192 spp.) and Bromeliaceae (124 spp.) families. In general, the vegetative and reproductive phenology of epiphytes tends to be seasonal; however, there is a huge gap in our understanding of the proximate and ultimate factors involved. Future research should explicitly focus on studying those factors.

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Phenology and reintroduction strategies for Dendrobium aqueum Lindley – An endemic, near threatened orchid

Cited by 16 publications

References 7 publications

Optimizing release strategies: a stepping‐stone approach to reintroduction

Optimizing release strategies: a stepping‐stone approach to reintroduction

Survival and development of reintroduced Cattleya intermedia plants related to abiotic factors and herbivory at the edge and in the interior of a forest fragment in South Brazil

Vascular Epiphytes: The Ugly Duckling of Phenological Studies

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