DOCSLIB.ORG

Management—Urban Rodents and Rodenticide Resistance

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Management—Urban Rodents and Rodenticide Resistance SYMPOSIUM 7: MANAGEMENT—URBAN RODENTS AND RODENTICIDE RESISTANCE This file forms part of ACIAR Monograph 96, Rats, mice and people: rodent biology and management. The other parts of Monograph 96 can be downloaded from <www.aciar.gov.au>. © Australian Centre for International Agricultural Research 2003 Grant R. Singleton, Lyn A. Hinds, Charles J. Krebs and Dave M. Spratt, 2003. Rats, mice and people: rodent biology and management. ACIAR Monograph No. 96, 564p. ISBN 1 86320 357 5 [electronic version] ISSN 1447-090X [electronic version] Technical editing and production by Clarus Design, Canberra 431 Ecological perspectives on the management of commensal rodents David P. Cowan, Roger J. Quy* and Mark S. Lambert Central Science Laboratory, Sand Hutton, York YO41 1LZ, UNITED KINGDOM *Corresponding author, email: [email protected] Abstract. The need to control Norway rats in the United Kingdom has led to heavy reliance on rodenticides, particu- larly because alternative methods do not reduce rat numbers as quickly or as efficiently. However, such reliance has led to concerns that repeated use of rodenticides poses unacceptable risks to other animals as well as encouraging resis- tance in the target species. In agricultural areas, frequent use of poison baits is unavoidable when control is concen- trated on individual, resource-rich patches, such as farm buildings, because even if total elimination is achieved, reinvasion is inevitable. Population density is highest around buildings during winter when food supplies are most abundant and locations for baits most restricted. Control can be improved by, for example, changing the location of food sources within buildings, so that the environment is less predictable to rats. Rats with the smallest home ranges are most likely to succumb to rodenticide treatment, but those with the largest ranges who nevertheless consume poi- son bait may pose the greatest risk to predators. Populations reduced to very few animals may take two years or more to recover to their previous levels if there are no nearby reservoir colonies. Not surprisingly, recovery can be severely impeded by limiting the food supply, but in practice the resources of food and harbourage can rarely be controlled to a significant degree on a working farm. Consequently, reducing cover to expose rats to increased predation risks is prac- ticable, but the most successful control strategy necessitates breaking links between populations in resource-rich patches. This may be achieved by treating several patches simultaneously, as well as removing rats in transit between them. Although the initial control may be carried out with rodenticides, the need for subsequent treatments using poi- son baits should be greatly reduced. Introduction while ideal, is difficult to prove, let alone achieve. Hence, populations invariably recover, largely because the under- The need to control commensal rodents is rarely controver- lying reasons for the problem population developing in the sial, as the public has always associated rats, in particular, first place are seldom addressed. As the recovery with lethal, disease-causing organisms, such as bubonic progresses, at some point re-treatment becomes inevitable, plague. While plague has long been absent from some but experience has shown that the same level of control is countries, including the United Kingdom (UK), the poten- not guaranteed on subsequent occasions. The dynamics of tial health threat from commensal rodents is now focused each new population, including the behaviour and physi- on other zoonotic diseases, such as leptospirosis (Weil’s ology of individuals, are subject to change, not only disease) and salmonellosis. While pressure to control because of the selection pressure imposed by intensively problem populations continues, the means of doing so are applied control measures, but also because resources vary in coming under closer scrutiny, particularly regarding issues distribution and abundance. In this paper, we use the of humaneness and environmental impact, in addition to Norway rat (Rattus norvegicus) in rural habitats in the UK cost-effectiveness. Nevertheless, control tactics need to as a model to illustrate how these ecological processes reduce rapidly the number of potentially disease-carrying influence the effectiveness and safety of commensal rodent rodents and non-lethal management methods are generally management strategies. unable to achieve this. For example, repellents at best keep The Norway rat first arrived in the British Isles nearly rodents at a distance and at worst push the problem else- 300 years ago, then spread rapidly and largely displaced where, while fertility control might only reduce problems the ship rat (Rattus rattus) that had been present since over too long a period. Moreover, for many, the only accept- Roman times. Today, the Norway rat in rural areas is seen able level of control that mitigates disease risks is total predominantly as a storage pest that exploits supplies of elimination of the rodent population, an objective that, harvested cereals, root crops and livestock feeds to be 433 Rats, Mice and People: Rodent Biology and Management found in farm buildings. It also lives along field margins Hampshire farms was cereal growing (67%), livestock but rarely digs burrows in the fields. Changes in the agri- rearing on those in North Yorkshire (61%), and 42% live- cultural landscape that came with increasing mechanisa- stock/42% arable on the Sussex farms. Farming activity on tion resulted in loss of harbourage for rats as field one site in Hampshire, four in Sussex and eight in North boundaries were ploughed up to make larger fields. Yorkshire was classified as mixed. The location and type Consequently, the significant damage that the rats report- of stored food accessible to rats on each farm was edly caused to standing crops is now negligible. Despite recorded. Rats in Hampshire were typically warfarin-resis- being a relatively recent arrival and its association with tant with some resistant to difenacoum and bromadiolone human activities, the species can survive independently in also, while rats in Sussex were mostly anticoagulant- the UK, but large (damaging) populations seem to occur susceptible (Cowan et al. 1995); resistance to anticoagu- only on working farmsteads with abundant resources. lants has also been found in North Yorkshire rats. Popula- While much of their food may be found indoors, rats tion size was estimated immediately before a rodenticide prefer to nest in burrows dug in undisturbed ground treatment using a calibrated tracking plate technique (Quy between buildings or along adjacent hedgerows and et al. 1993). Briefly, tracking plates were evenly spread ditches. Control measures seem to be particularly across each site at a nominal density of 400/ha. The area of successful if they intercept rats before the animals reach each plate covered with rat footprints was given a score their food source and the most extreme form of intercep- and summing the scores gave an index of total rat activity. tion is to dispense poison bait directly into the burrow A mean of 3–4 consecutive daily total scores was then (Quy et al. 1996). However, active burrows are not always converted via a calibration curve to give an estimate of rat easy to find and rats are also highly mobile (Taylor and population size. Quy 1978), such that some burrows may be 1 km or more The ranging behaviour of rats was recorded between away from food sources. 1994 and 1996 on two farms in the county of Warwickshire Controlling Norway rats presents similar challenges to as part of a study investigating the role these rodents play as achieving successful control of other commensal rodents. vectors of cryptosporidiosis (Quy et al. 1999). Adult rats of The most practicable technique on farmsteads is to use >300 g living in and around cattle sheds and those living rodenticide bait, but the animals live in a complex, three- along field margins on an arable farm 5 km away were fitted dimensional habitat where attractive food is, for weeks at a with radio-transmitters that also contained mortality time, virtually unlimited and where places to put the bait sensors. Each tagged rat was tracked intensively for a week may be restricted. Under such circumstances, bait may be approximately every 4 weeks until the animal died, was totally ignored while damage and contamination continue lost, or the tag came off. Fixes were obtained every 6 hours unabated. However, the food supplies can also ‘disappear’ and a home range was calculated by the minimum convex suddenly and there may be little time to intensify baiting polygon method for each rat with >10 fixes. Every effort before the rats disperse. Harbourage is always available, was made to recover animals that had apparently died in although it often varies in quantity, quality and distance from order to determine the cause of death. Anticoagulant treat- food sources. Control measures are usually instigated on ments were carried out periodically on the livestock farm farms when the population reaches some arbitrary nuisance by the farm staff, but no control was carried out along the or damage threshold, but it is only when such measures fail field margins on the other farm. that the number of rats which can be supported by farmstead habitats is shown to greatly exceed the numbers previously The rate of recovery of 20 rat populations in the considered to be too high. As rat population density county of Surrey in south-eastern England was monitored increases, it sometimes becomes impossible to lay the at 2-monthly intervals for approximately one year required amounts of bait and efficacy is reduced or treat- between 1976 and 1979. Each population was reduced by ments prolonged. In this paper, we will consider the ecolog- an acute rodenticide and, where necessary, an anticoagu- ical factors that affect the efficacy of rodenticide use, in lant to eliminate as far as possible every rat.
Load more

Recommended publications
  • PLAGUE STUDIES * 6. Hosts of the Infection R
    Bull. Org. mond. Sante 1 Bull. World Hlth Org. 1952, 6, 381-465 PLAGUE STUDIES * 6. Hosts of the Infection R. POLLITZER, M.D. Division of Epidemiology, World Health Organization Manuscript received in April 1952 RODENTS AND LAGOMORPHA Reviewing in 1928 the then rather limited knowledge available concerning the occurrence and importance of plague in rodents other than the common rats and mice, Jorge 129 felt justified in drawing a clear-cut distinction between the pandemic type of plague introduced into human settlements and houses all over the world by the " domestic " rats and mice, and " peste selvatique ", which is dangerous for man only when he invades the remote endemic foci populated by wild rodents. Although Jorge's concept was accepted, some discussion arose regarding the appropriateness of the term " peste selvatique" or, as Stallybrass 282 and Wu Lien-teh 318 translated it, " selvatic plague ". It was pointed out by Meyer 194 that, on etymological grounds, the name " sylvatic plague " would be preferable, and this term was widely used until POzzO 238 and Hoekenga 105 doubted, and Girard 82 denied, its adequacy on the grounds that the word " sylvatic" implied that the rodents concerned lived in forests, whereas that was rarely the case. Girard therefore advocated the reversion to the expression "wild-rodent plague" which was used before the publication of Jorge's study-a proposal it has seemed advisable to accept for the present studies. Much more important than the difficulty of adopting an adequate nomenclature is that of distinguishing between rat and wild-rodent plague- a distinction which is no longer as clear-cut as Jorge was entitled to assume.
    [Show full text]
  • Rodent Identification and Signs of Stowaways Key Features of UK Target Rodents
    FROM RSPB BIOSECURITY MANUAL CHAPTER 2: RODENT SURVEILLANCE & IDENTIFICATION Rodent identification and signs of stowaways Key features of UK target rodents Black rat Brown rat House mouse FROM RSPB BIOSECURITY MANUAL CHAPTER 2: RODENT SURVEILLANCE & IDENTIFICATION Identifying rodent droppings Rodent droppings can be very variable (depending on diet), including in colour, but as a guide: Brown rat Black rat House mouse -13-19mm long, -7-14mm long -4-8mm long -3-4mm thick -3-4mm thick -2mm thick -Rounded ends, one end may go to -Tapered ends -Small and thin a point (as pictured) -Often slightly curved -A bit like grains of rice -Likely to contain fur -Likely to contain fur -Strong smell of ammonia. -Often located in latrines along tracks, at feeding sites and on prominent rocks Figure 2.9 Droppings of UK invasive rodents. Images: taken from Morton & Cole 2013 Rabbit or goat droppings be mistaken for rat droppings, though they are usually more spherical (particularly rabbit) and uniform. Goat droppings may be more cylindrical but with flatter or round, rather than tapered ends. Breaking up droppings should help (wear gloves): rabbit and goat droppings just contain vegetation, whereas rat droppings are likely to contain fur and a range of food stuffs. Shrew droppings – typically 2-4mm long and 1-2mm thick, these should be smaller than rat or mouse droppings. However, evidence from St Agnes and Gugh (Isles of Scilly) shows shrew droppings can be much larger than this. They are of a sandy consistency and are largely comprised of insect remains, whereas rodent droppings generally contain a wider array of food sources.
    [Show full text]
  • BANDICOTA INDICA, the BANDICOOT RAT 3.1 The
    CHAPTER THREE BANDICOTA INDICA, THE BANDICOOT RAT 3.1 The Living Animal 3.1.1 Zoology Rats and mice (family Muridae) are the most common and well-known rodents, not only of the fi elds, cultivated areas, gardens, and storage places but especially so of the houses. Though there are many genera and species, their general appearance is pretty the same. Rats are on average twice as large as mice (see Chapter 31). The bandicoot is the largest rat on the Indian subcontinent, with a body and head length of 30–40 cm and an equally long tail; this is twice as large as the black rat or common house rat (see section 3.1.2 below). This large size immediately distinguishes the bandicoot from other rats. Bandicoots have a robust form, a rounded head, large rounded or oval ears, and a short, broad muzzle. Their long and naked scaly tail is typical of practically all rats and mice. Bandicoots erect their piles of long hairs and grunt when excited. Bandicoots are found practically on the whole of the subcontinent from the Himalayas to Cape Comorin, including Sri Lanka, but they are not found in the deserts and the semi-arid zones of north-west India. Here, they are replaced by a related species, the short-tailed bandicoot (see section 3.1.2 below). The bandicoot is essentially parasitic on man, living in or about human dwellings. They cause a lot of damage to grounds and fl oorings because of their burrowing habits; they also dig tunnels through bricks and masonry.
    [Show full text]
  • Evolutionary Biology of the Genus Rattus: Profile of an Archetypal Rodent Pest
    Bromadiolone resistance does not respond to absence of anticoagulants in experimental populations of Norway rats. Heiberg, A.C.; Leirs, H.; Siegismund, Hans Redlef Published in: <em>Rats, Mice and People: Rodent Biology and Management</em> Publication date: 2003 Document version Publisher's PDF, also known as Version of record Citation for published version (APA): Heiberg, A. C., Leirs, H., & Siegismund, H. R. (2003). Bromadiolone resistance does not respond to absence of anticoagulants in experimental populations of Norway rats. In G. R. Singleton, L. A. Hinds, C. J. Krebs, & D. M. Spratt (Eds.), Rats, Mice and People: Rodent Biology and Management (Vol. 96, pp. 461-464). Download date: 27. Sep. 2021 SYMPOSIUM 7: MANAGEMENT—URBAN RODENTS AND RODENTICIDE RESISTANCE This file forms part of ACIAR Monograph 96, Rats, mice and people: rodent biology and management. The other parts of Monograph 96 can be downloaded from <www.aciar.gov.au>. © Australian Centre for International Agricultural Research 2003 Grant R. Singleton, Lyn A. Hinds, Charles J. Krebs and Dave M. Spratt, 2003. Rats, mice and people: rodent biology and management. ACIAR Monograph No. 96, 564p. ISBN 1 86320 357 5 [electronic version] ISSN 1447-090X [electronic version] Technical editing and production by Clarus Design, Canberra 431 Ecological perspectives on the management of commensal rodents David P. Cowan, Roger J. Quy* and Mark S. Lambert Central Science Laboratory, Sand Hutton, York YO41 1LZ, UNITED KINGDOM *Corresponding author, email: [email protected] Abstract. The need to control Norway rats in the United Kingdom has led to heavy reliance on rodenticides, particu- larly because alternative methods do not reduce rat numbers as quickly or as efficiently.
    [Show full text]
  • Checklist of the Mammals of Indonesia
    CHECKLIST OF THE MAMMALS OF INDONESIA Scientific, English, Indonesia Name and Distribution Area Table in Indonesia Including CITES, IUCN and Indonesian Category for Conservation i ii CHECKLIST OF THE MAMMALS OF INDONESIA Scientific, English, Indonesia Name and Distribution Area Table in Indonesia Including CITES, IUCN and Indonesian Category for Conservation By Ibnu Maryanto Maharadatunkamsi Anang Setiawan Achmadi Sigit Wiantoro Eko Sulistyadi Masaaki Yoneda Agustinus Suyanto Jito Sugardjito RESEARCH CENTER FOR BIOLOGY INDONESIAN INSTITUTE OF SCIENCES (LIPI) iii © 2019 RESEARCH CENTER FOR BIOLOGY, INDONESIAN INSTITUTE OF SCIENCES (LIPI) Cataloging in Publication Data. CHECKLIST OF THE MAMMALS OF INDONESIA: Scientific, English, Indonesia Name and Distribution Area Table in Indonesia Including CITES, IUCN and Indonesian Category for Conservation/ Ibnu Maryanto, Maharadatunkamsi, Anang Setiawan Achmadi, Sigit Wiantoro, Eko Sulistyadi, Masaaki Yoneda, Agustinus Suyanto, & Jito Sugardjito. ix+ 66 pp; 21 x 29,7 cm ISBN: 978-979-579-108-9 1. Checklist of mammals 2. Indonesia Cover Desain : Eko Harsono Photo : I. Maryanto Third Edition : December 2019 Published by: RESEARCH CENTER FOR BIOLOGY, INDONESIAN INSTITUTE OF SCIENCES (LIPI). Jl Raya Jakarta-Bogor, Km 46, Cibinong, Bogor, Jawa Barat 16911 Telp: 021-87907604/87907636; Fax: 021-87907612 Email: [email protected] . iv PREFACE TO THIRD EDITION This book is a third edition of checklist of the Mammals of Indonesia. The new edition provides remarkable information in several ways compare to the first and second editions, the remarks column contain the abbreviation of the specific island distributions, synonym and specific location. Thus, in this edition we are also corrected the distribution of some species including some new additional species in accordance with the discovery of new species in Indonesia.
    [Show full text]
  • Calaby References
    Abbott, I.J. (1974). Natural history of Curtis Island, Bass Strait. 5. Birds, with some notes on mammal trapping. Papers and Proceedings of the Royal Society of Tasmania 107: 171–74. General; Rodents; Abbott, I. (1978). Seabird islands No. 56 Michaelmas Island, King George Sound, Western Australia. Corella 2: 26–27. (Records rabbit and Rattus fuscipes). General; Rodents; Lagomorphs; Abbott, I. (1981). Seabird Islands No. 106 Mondrain Island, Archipelago of the Recherche, Western Australia. Corella 5: 60–61. (Records bush-rat and rock-wallaby). General; Rodents; Abbott, I. and Watson, J.R. (1978). The soils, flora, vegetation and vertebrate fauna of Chatham Island, Western Australia. Journal of the Royal Society of Western Australia 60: 65–70. (Only mammal is Rattus fuscipes). General; Rodents; Adams, D.B. (1980). Motivational systems of agonistic behaviour in muroid rodents: a comparative review and neural model. Aggressive Behavior 6: 295–346. Rodents; Ahern, L.D., Brown, P.R., Robertson, P. and Seebeck, J.H. (1985). Application of a taxon priority system to some Victorian vertebrate fauna. Fisheries and Wildlife Service, Victoria, Arthur Rylah Institute of Environmental Research Technical Report No. 32: 1–48. General; Marsupials; Bats; Rodents; Whales; Land Carnivores; Aitken, P. (1968). Observations on Notomys fuscus (Wood Jones) (Muridae-Pseudomyinae) with notes on a new synonym. South Australian Naturalist 43: 37–45. Rodents; Aitken, P.F. (1969). The mammals of the Flinders Ranges. Pp. 255–356 in Corbett, D.W.P. (ed.) The natural history of the Flinders Ranges. Libraries Board of South Australia : Adelaide. (Gives descriptions and notes on the echidna, marsupials, murids, and bats recorded for the Flinders Ranges; also deals with the introduced mammals, including the dingo).
    [Show full text]
  • Norntates PUBLISHED by the AMERICAN MUSEUM of NATURAL HISTORY CENTRAL PARK WEST at 79TH STREET, NEW YORK, N.Y
    AMERICAN MUSEUM Norntates PUBLISHED BY THE AMERICAN MUSEUM OF NATURAL HISTORY CENTRAL PARK WEST AT 79TH STREET, NEW YORK, N.Y. 10024 Number 3052, 19 pp., 9 figures, 1 table December 14, 1992 Sucking Lice (Insecta, Anoplura) from Indigenous Sulawesi Rodents: a New Species of Polyplax from a Montane Shrew Rat, and New Information About Polyplax wallacei and P. eropepli LANCE A. DURDEN' AND GUY G. MUSSER2 ABSTRACT Polyplax melasmothrixi, a new species of po- from Eropeplus canus from tropical upper mon- lyplacid sucking louse, is described from Melas- tane rain forest also in Central Sulawesi. Host and mothrix naso, a small-bodied shrew rat known habitat associations for these three species ofsuck- only from tropical upper montane rain forest in ing lice are discussed. Polyplax melasmothrixi and Central Sulawesi, Indonesia. The male ofPolyplax P. eropepli are both known only from montane wallacei is described from specimens collected from habitats in Central Sulawesi and both appear to Bunomys chrysocomus trapped in tropical lowland be host specific (to M. naso and E. canus, respec- evergreen rain forest in Central Sulawesi. A further tively). Contrastingly, P. wallacei parasitizes two specimen ofPolyplax eropepli, a taxon previously species ofBunomys in lowland forests and is known known only from the type series, is documented from North and Central Sulawesi. INTRODUCTION Melasmothrix naso, Bunomys chrysoco- Musser and Holden, 1991). The shrew rat, mus, and Eropeplus canus are three murine M. naso, and the large-bodied E. canus have rodents found only in forests on the Indo- been recorded only from montane rainforest nesian island of Sulawesi (Musser, 1987; formations in the mountainous central part I Assistant Professor and Assistant Curator, Institute of Arthropodology and Parasitology, Georgia Southern Uni- versity, Landrum Box 8056, Statesboro, Georgia 30460.
    [Show full text]
  • Quaternary Murid Rodents of Timor Part I: New Material of Coryphomys Buehleri Schaub, 1937, and Description of a Second Species of the Genus
    QUATERNARY MURID RODENTS OF TIMOR PART I: NEW MATERIAL OF CORYPHOMYS BUEHLERI SCHAUB, 1937, AND DESCRIPTION OF A SECOND SPECIES OF THE GENUS K. P. APLIN Australian National Wildlife Collection, CSIRO Division of Sustainable Ecosystems, Canberra and Division of Vertebrate Zoology (Mammalogy) American Museum of Natural History ([email protected]) K. M. HELGEN Department of Vertebrate Zoology National Museum of Natural History Smithsonian Institution, Washington and Division of Vertebrate Zoology (Mammalogy) American Museum of Natural History ([email protected]) BULLETIN OF THE AMERICAN MUSEUM OF NATURAL HISTORY Number 341, 80 pp., 21 figures, 4 tables Issued July 21, 2010 Copyright E American Museum of Natural History 2010 ISSN 0003-0090 CONTENTS Abstract.......................................................... 3 Introduction . ...................................................... 3 The environmental context ........................................... 5 Materialsandmethods.............................................. 7 Systematics....................................................... 11 Coryphomys Schaub, 1937 ........................................... 11 Coryphomys buehleri Schaub, 1937 . ................................... 12 Extended description of Coryphomys buehleri............................ 12 Coryphomys musseri, sp.nov.......................................... 25 Description.................................................... 26 Coryphomys, sp.indet.............................................. 34 Discussion . ....................................................
    [Show full text]
  • Life History Account for Black
    California Wildlife Habitat Relationships System California Department of Fish and Wildlife California Interagency Wildlife Task Group BLACK RAT Rattus rattus Family: MURIDAE Order: RODENTIA Class: MAMMALIA M140 Written by: P. Brylski Reviewed by: H. Shellhammer Edited by: R. Duke DISTRIBUTION, ABUNDANCE, AND SEASONALITY The black rat was introduced to North America in the 1800's. Its distribution in California is poorly known, but it probably occurs in most urban areas. There are 2 subspecies present in California, R. r. rattus and R. r. alexandrinus. R. r. rattus, commonly called the black rat, lives in seaports and adjacent towns. It is frequently found along streamcourses away from buildings (Ingles 1947). R. r. alexandrinus, more commonly known as the roof rat, lives along the coast, in the interior valleys and in the lower parts of the Sierra Nevada. The distribution of both subspecies in rural areas is patchy. Occurs throughout the Central Valley and west to the San Francisco Bay area, coastal southern California, in Bakersfield (Kern Co.), and in the North Coast area from the vicinity of Eureka to the Oregon border. Confirmed locality information is lacking. Found in buildings, preferring attics, rafters, walls, and enclosed spaces (Godin 1977), and along streamcourses (Ingles 1965). Common in urban habitats. May occur in valley foothill riparian habitat at lower elevations. In northern California, occurs in dense himalayaberry thickets (Dutson 1973). SPECIFIC HABITAT REQUIREMENTS Feeding: Omnivorous, eating fruits, grains, small terrestrial vertebrates, fish, invertebrates, and human garbage. Cover: Prefers buildings and nearby stream courses. Where the black rat occurs with the Norway rat, it usually is forced to occupy the upper parts of buildings (Godin 1977).
    [Show full text]
  • Ecological Assessments in the B+WISER Sites
    Ecological Assessments in the B+WISER Sites (Northern Sierra Madre Natural Park, Upper Marikina-Kaliwa Forest Reserve, Bago River Watershed and Forest Reserve, Naujan Lake National Park and Subwatersheds, Mt. Kitanglad Range Natural Park and Mt. Apo Natural Park) Philippines Biodiversity & Watersheds Improved for Stronger Economy & Ecosystem Resilience (B+WISER) 23 March 2015 This publication was produced for review by the United States Agency for International Development. It was prepared by Chemonics International Inc. The Biodiversity and Watersheds Improved for Stronger Economy and Ecosystem Resilience Program is funded by the USAID, Contract No. AID-492-C-13-00002 and implemented by Chemonics International in association with: Fauna and Flora International (FFI) Haribon Foundation World Agroforestry Center (ICRAF) The author’s views expressed in this publication do not necessarily reflect the views of the United States Agency for International Development or the United States Government. Ecological Assessments in the B+WISER Sites Philippines Biodiversity and Watersheds Improved for Stronger Economy and Ecosystem Resilience (B+WISER) Program Implemented with: Department of Environment and Natural Resources Other National Government Agencies Local Government Units and Agencies Supported by: United States Agency for International Development Contract No.: AID-492-C-13-00002 Managed by: Chemonics International Inc. in partnership with Fauna and Flora International (FFI) Haribon Foundation World Agroforestry Center (ICRAF) 23 March
    [Show full text]
  • The Herpetological Bulletin
    THE HERPETOLOGICAL BULLETIN The Herpetological Bulletin is produced quarterly and publishes, in English, a range of articles concerned with herpetology. These include society news, full-length papers, new methodologies, natural history notes, book reviews, letters from readers and other items of general herpetological interest. Emphasis is placed on natural history, conservation, captive breeding and husbandry, veterinary and behavioural aspects. Articles reporting the results of experimental research, descriptions of new taxa, or taxonomic revisions should be submitted to The Herpetological Journal (see inside back cover for Editor’s address). Guidelines for Contributing Authors: 1. See the BHS website for a free download of the Bulletin showing Bulletin style. A template is available from the BHS website www.thebhs.org or on request from the Editor. 2. Contributions should be submitted by email or as text files on CD or DVD in Windows® format using standard word-processing software. 3. Articles should be arranged in the following general order: Title Name(s) of authors(s) Address(es) of author(s) (please indicate corresponding author) Abstract (required for all full research articles - should not exceed 10% of total word length) Text acknowledgements References Appendices Footnotes should not be included. 4. Text contributions should be plain formatted with no additional spaces or tabs. It is requested that the References section is formatted following the Bulletin house style (refer to this issue as a guide to style and format). Particular attention should be given to the format of citations within the text and to references. 5. High resolution scanned images (TIFF or JPEG files) are the preferred format for illustrations, although good quality slides, colour and monochrome prints are also acceptable.
    [Show full text]
  • Novltates PUBLISHED by the AMERICAN MUSEUM of NATURAL HISTORY CENTRAL PARK WEST at 79TH STREET, NEW YORK, N.Y
    AMERICAN MUSEUM Novltates PUBLISHED BY THE AMERICAN MUSEUM OF NATURAL HISTORY CENTRAL PARK WEST AT 79TH STREET, NEW YORK, N.Y. 10024 Number 3064, 34 pp., 8 figures, 2 tables June 10, 1993 Philippine Rodents: Chromosomal Characteristics and Their Significance for Phylogenetic Inference Among 13 Species (Rodentia: Muridae: Murinae) ERIC A. RICKART1 AND GUY G. MUSSER2 ABSTRACT Karyotypes are reported for 13 murines be- bers of 50 and 88, respectively, indicating longing to the endemic Philippine genera Apomys, substantial chromosomal variability within that Archboldomys, Batomys, Bullimus, Chrotomys, genus. Archboldomys (2N = 26, FN = 43) has an Phloeomys, and Rhynchomys, and the widespread aberrant sex chromosome system and a karyotype genus Rattus. The karyotype of Phloeomys cum- that is substantially different from other taxa stud- ingi (2N = 44, FN = 66) differs from that of P. ied. The karyotype ofBullimus bagobus (2N = 42, pallidus (2N = 40, FN = 60), and both are chro- FN = ca. 58) is numerically similar to that of the mosomally distinct from other taxa examined. Two native Rattus everetti and the two non-native spe- species of Batomys (2N = 52), Chrotomys gon- cies ofRattus, R. tanezumi and R. exulans. Chro- zalesi (2N = 44), Rhynchomys isarogensis (2N = mosomal data corroborate some phylogenetic re- 44), and Apomys musculus (2N = 42) have FN = lationships inferred from morphology, and support 52-53 and a predominance of telocentric chro- the hypothesis that the Philippine murid fauna is mosomes. Two other species ofApomys have dip- composed of separate clades representing inde- loid numbers of30 and 44, and fundamental num- pendent ancestral invasions of the archipelago. INTRODUCTION The Philippine Islands support a remark- Heaney and Rickart, 1990; Musser and Hea- ably diverse murine rodent fauna, including ney, 1992).
    [Show full text]