The Rimba Raya Biodiversity Reserve REDD Project

d. areas that support significant concentrations of aspecies during any time in their lifecycle (e.g. migrations,feeding grounds, breeding areas).The purpose of HCV 1.4 is to identify and maintain habitatfeatures within a landscape where temporarycongregations of wildlife occur during key stages of thelife cycle, such as for periodic feeding, reproduction,shelter, or refuge from disturbance. The managementgoal of HCV 1.4 is to maintain the function andaccessibility of such areas to resident wildlife.The Toolkit for Indonesia lists the following examples ofkey habitats under HCV 1.4:Caves for bats or swiftletsLakes or other open water bodies for resident ormigrant water birdsGrassy banks along slow moving rivers forbreedingSalt licksAreas with known high concentrations of fruitavailability, especially figs, for frugivorousvertebratesDead or standing trees used for nesting by birdsand other vertebratesEcotones or ecoclines across which animals move,sometimes in large numbers, to forage in differenthabitats where food is available at different timesThe key question for identifying HCV 1.4 in the ProjectZone is:Does the Project Zone contain or is it likely tocontain one or more keystone habitat(s) oftemporary use by species or congregations ofspecies?On the basis of available data, and with reference to therevised Toolkit, the following attributes of HCV 1.4 aredeemed present in the Project Zone: (i) lakes or openwater bodies for resident or migrant birds, (ii) grassybanks along slow moving rivers, and (iii) ecotones acrosswhich animals moves to track seasonal availability of fruit.They are discussed in turn below.Lakes or open water bodiesThe western edge of Lake Sembuluh, situated east of theProject Area but included within the eastern edge of theProject Zone, is very likely to function as HCV 1.4,providing vital wetland habitat for concentrations ofmigratory and resident wetland bird species. NearbyTanjung Puting National Park and Lake Sembuluh aresituated along the East Asian-­‐Australasian Flyway (EAAF),which holds the highest number of wader populations ofany global flyway, with more than 35 species of Arctic-­breedingmigratory wader traversing this route to reachregular non-­‐breeding grounds in the tropics and as farsouth as Australia and New Zealand. A full description ofLake Sembuluh and its potential importance for birdconservation is provided in Annex 8.64