Kerala Forest Research Institute KFRI

Trichūr, India

Kerala Forest Research Institute KFRI

Trichūr, India
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Raghavan R.,Kerala University of Fisheries and Ocean Studies | Raghavan R.,Outreach | Das S.,Kerala Forest Research Institute KFRI | Das S.,University of Calicut | And 4 more authors.
Aquatic Conservation: Marine and Freshwater Ecosystems | Year: 2016

Fresh waters and their resources continue to be one of the most imperilled ecosystems on Earth, yet very little emphasis has been placed on identifying and developing in situ conservation mechanisms, such as freshwater protected areas. In the southern region of the Western Ghats Hotspot, India, a globally important eco-region harbouring unique freshwater taxa, there has been very little effort to identify the role played by terrestrial protected areas in freshwater biodiversity conservation. Around 130 species of freshwater-dependent fauna belonging to five taxonomic groups (fish, amphibians, crabs, shrimps and odonates) are endemic to the region, of which 25% have a high risk of extinction. More than half of the 130 species are not represented in the current protected area (PA) network, and the distributions of 12 endemic and threatened species (10 fish, one amphibian and one shrimp), of which five are single-location species, also fall wholly outside the PA network. Although 44% (58 species) of endemic freshwater-dependent fauna of the region occur either wholly (25 species) or partly (33 species) inside terrestrial PAs, they are rarely subject to species-specific management or monitoring plans. To improve freshwater biodiversity conservation at the local level, and to achieve global conservation targets, such as the Convention on Biological Diversity's Aichi targets (for example targets 11 and 12), the PA network of the region should be doubled. This may be achieved by expanding the area of existing PAs to incorporate priority sites for freshwater taxa, creating new PAs by specifically targeting areas that are of significance to freshwater biodiversity, and developing and implementing freshwater-specific management plans in existing PAs of the region. Copyright © 2016 John Wiley & Sons, Ltd. Copyright © 2016 John Wiley & Sons, Ltd.

Udayan P.S.,P.A. College | Robi A.J.,Kerala Forest Research Institute KFRI | Manudev K.M.,St Josephs College | Sujanapal P.,Kerala Forest Research Institute KFRI
Webbia | Year: 2016

Cuscuta krishnae, a new species from the southern part of the Western Ghats, Kerala, India, is described and illustrated. This species shows similarities with Cuscuta reflexa in stem, flowers and fruit, but differs in having yellowish to orange yellow (or purple) stem, specked with purple dots, inflorescence clusters, bearing long pedicellate flowers, white to purplish-white flowers, short scales, corolla tube with scattered purple dots, ovate corolla lobe, ligulate stigma, usually three-seeded capsule. Also shows affinities to Cuscuta gigantea in the pedicellate flower, but differs in having yellow to pale brown stem, specked with purple dots, 1–2 cm long pedicel, white to purplish-white flowers, three-seeded capsule. © 2016 Dipartimento di Biologia, Università di Firenze

Robi A.J.,Kerala Forest Research Institute KFRI | Augustine J.,Thomas College | Sasidharan N.,Kerala Forest Research Institute KFRI | Udayan P.S.,P.A. College
Rheedea | Year: 2013

Premna paucinervis (C.B. Clarke) Gamble is endemic to the Southern Western Ghats. It has been rediscovered after type collection from the Wagamon hills along the Western Ghats of Kerala after a lapse of 140 years and describing the hitherto unknown fruits. A detailed taxonomic description and color photographs of the species are provided.

Taylor B.,CABI Europe UK | Rahman P.M.,Kerala Forest Research Institute KFRI | Murphy S.T.,CABI Europe UK | Sudheendrakumar V.V.,Kerala Forest Research Institute KFRI
Experimental and Applied Acarology | Year: 2012

Field surveys were conducted monthly between December 2008 and July 2009 in Kerala, south-west India to compare the population dynamics of the red palm mite Raoiella indica (RPM) on two host plants Areca catechu and Cocos nucifera during one non-monsoon season when, in general, RPM populations increase. The aim was to examine the effects of host plant, host plant locality and the impact of climatic factors on RPM and related phytoseiid predators. There were significantly higher RPM densities on areca in peak season (May/June) compared to coconut; although significantly more coconut sites were infested with RPM than areca. Although no one climatic factor was significantly related to RPM numbers, interactions were found between temperature, humidity and rainfall and the partitioning of host plant locality showed that where conditions were warmer and drier, RPM densities were significantly higher. Specifically on coconut, there was a significant relation between RPM densities and the combined interaction between site temperature, site humidity and phytoseiid densities. There was a marked difference in the density of phytoseiids collected between areca and coconut palms, with significantly more on the latter, in several months. Amblyseius largoensis was the most commonly collected phytoseiid in association with RPM, although Amblyseius tamatavensis species group and Amblyseius largoensis species group were collected in association with RPM also. There was also evidence of a weak numerical response of the combined phytoseiid complex in relation to RPM density the previous month on coconut but this was not observed on areca. © 2011 Springer Science+Business Media B.V.

Sasidharan N.,Kerala Forest Research Institute KFRI | Sujanapal P.,Kerala Forest Research Institute KFRI
Rheedea | Year: 2011

Atuna indica (Bedd.) Kosterm. is rediscovered after the type collection. Detailed descriptions with illustrations are provided for the Southern Western Ghats species of Atuna based on the recent collections. Conservation status and distribution pattern are also discussed.

Mujeeb Rahman P.M.,Kerala Forest Research Institute KFRI | Varma R.V.,Kerala Forest Research Institute KFRI | Sileshi G.W.,World Agroforestry Center
Agroforestry Systems | Year: 2012

Biologically mediated soil processes rely on soil biota to provide vital ecosystem services in natural and managed ecosystems. However, land use changes continue to impact on assemblages of soil biota and the ecosystem services they provide. The objective of the present study was to assess the effect of land use intensification on the distribution and abundance of soil invertebrate communities in the Nilgiri, a human-dominated biosphere reserve of international importance. Soil invertebrates were sampled in 15 land use practices ranging from simple and intensively managed annual crop fields and monoculture tree plantations through less intensively managed agroforestry and pristine forest ecosystems. The lowest taxonomic richness was found in annual crops and coconut monoculture plantations, while the highest was in moist-deciduous and semi-evergreen forests. With 21 ant species, agroforestry systems had the highest diversity of ants followed by forest ecosystems (12 species). Earthworms and millipedes were significantly more abundant in agroforestry systems, plantations and forest ecosystems than in annual crop fields. Ants, termites, beetles, centipedes, crickets and spiders were more abundant in forest ecosystems than in other ecosystems. It is concluded that annual cropping systems have lower diversity and abundance of soil invertebrates than agroforestry and natural forest ecosystems. These results and the literature from other regions highlight the potential role that agroforestry practices can play in biodiversity conservation in an era of ever-increasing land use intensification and habitat loss. © 2011 Springer Science+Business Media B.V.

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