{"help": "https://pro.iepnb.gob.es/catalogo/api/3/action/help_show?name=package_show", "success": true, "result": {"access_rights": "http://inspire.ec.europa.eu/metadata-codelist/LimitationsOnPublicAccess/noLimitations", "alternate_identifier": "DOI: 10.1007/s10344-018-1246-2", "author": "Lima Santos, R.A. y Ascens\u00e3o, F.", "author_name": "Lima Santos, R.A. y Ascens\u00e3o, F.", "classification_variables": {"es": ""}, "conforms_to": ["https://www.boe.es/eli/es/res/2013/02/19/(4)"], "contact_email": "organismo@example.org", "contact_name": "Organismo publicador del Cat\u00e1logo", "contact_role": "http://inspire.ec.europa.eu/metadata-codelist/ResponsiblePartyRole/pointOfContact", "contact_uri": "http://datos.gob.es/recurso/sector-publico/org/Organismo/EA0000000", "contact_url": "https://organismo.example.org/", "created": "2025-05-23", "creator_user_id": "d24a314a-79ce-48c0-abd9-54cb42706da4", "dataset_scope": "non_spatial_dataset", "dcat_type": "http://purl.org/dc/dcmitype/Text", "encoding": "UTF-8", "featured": false, "graphic_overview": "https://media.springernature.com/w115/springer-static/cover/journal/10344/65/1.jpg?as=webp", "hvd": "non_hvd", "id": "ff77511a-34d7-5fd1-9ea4-d0bb07e6063b", "identifier": "ff77511a-34d7-5fd1-9ea4-d0bb07e6063b", "inspire_id": "", "isopen": true, "language": "http://publications.europa.eu/resource/authority/language/SPA", "license_id": "cc-by", "license_title": "Creative Commons Attribution", "license_url": "http://www.opendefinition.org/licenses/cc-by", "lineage_process_steps": [], "lineage_source": ["European Journal of Wildlife Research. Vol. 65", "Num. 1", "pag. 8"], "maintainer": "", "maintainer_name": "", "metadata_created": "2026-06-23T14:46:33.672261", "metadata_modified": "2026-06-25T12:24:42.481289", "metadata_profile": ["https://www.w3.org/TR/vocab-dcat-3/"], "miteco_data_population": {"es": ""}, "miteco_data_territory": {"es": ""}, "miteco_dataset_type": "http://publications.europa.eu/resource/authority/dataset-type/STATISTICAL", "miteco_geo_level": "1", "modified": "2026-06-25", "name": "ff77511a-34d7-5fd1-9ea4-d0bb07e6063b", "notes": "Roadkill estimates can be heavily biased due to variable carcass persistence time. If not adequately considered, this bias may lead to incorrect management actions. We designed an experiment aimed to provide an accurate assessment of carcass persistence time according to road type and position on the road along 114 km of roads (24 in dirt roads, 74 two-lane roads, and 16 in four-lane roads). We used two types of rodent of different body size to perform the experiment: mice (30 \u00b1 8 g) were placed on the road shoulders and road lanes every 1000 m, and rats (400 \u00b1 55 g) were placed only on road shoulders every 2000 m. Carcasses were monitored for up to five consecutive days. The persistence times of mice and rats were in general similar, with an estimated median time of 1 day. However, we found considerable differences according to road type and position on the road: the estimated median persistence time was substantially longer for carcasses on the four-lane roads, and longer on the road shoulders compared to the traffic lanes. Overall, we estimated an annual mortality of small animals to be higher than 100.000 individuals in Federal District, of which ca. 10% in dirt roads. Our results confirm that a great proportion of carcasses are likely to be undetected in roadkill surveys, particularly small body sized animals, and that such errors are also related to the type of road and the position of carcasses on the road. We highlight that the impact of dirt and two-lane roads on wildlife may be greatly underestimated.", "notes_translated": {"en": "Roadkill estimates can be heavily biased due to variable carcass persistence time. If not adequately considered, this bias may lead to incorrect management actions. We designed an experiment aimed to provide an accurate assessment of carcass persistence time according to road type and position on the road along 114\u00a0km of roads (24 in dirt roads, 74 two-lane roads, and 16 in four-lane roads). We used two types of rodent of different body size to perform the experiment: mice (30\u2009\u00b1\u20098\u00a0g) were placed on the road shoulders and road lanes every 1000\u00a0m, and rats (400\u2009\u00b1\u200955\u00a0g) were placed only on road shoulders every 2000\u00a0m. Carcasses were monitored for up to five consecutive days. The persistence times of mice and rats were in general similar, with an estimated median time of 1\u00a0day. However, we found considerable differences according to road type and position on the road: the estimated median persistence time was substantially longer for carcasses on the four-lane roads, and longer on the road shoulders compared to the traffic lanes. Overall, we estimated an annual mortality of small animals to be higher than 100.000 individuals in Federal District, of which ca. 10% in dirt roads. Our results confirm that a great proportion of carcasses are likely to be undetected in roadkill surveys, particularly small body sized animals, and that such errors are also related to the type of road and the position of carcasses on the road. We highlight that the impact of dirt and two-lane roads on wildlife may be greatly underestimated.", "es": "Roadkill estimates can be heavily biased due to variable carcass persistence time. If not adequately considered, this bias may lead to incorrect management actions. We designed an experiment aimed to provide an accurate assessment of carcass persistence time according to road type and position on the road along 114 km of roads (24 in dirt roads, 74 two-lane roads, and 16 in four-lane roads). We used two types of rodent of different body size to perform the experiment: mice (30 \u00b1 8 g) were placed on the road shoulders and road lanes every 1000 m, and rats (400 \u00b1 55 g) were placed only on road shoulders every 2000 m. Carcasses were monitored for up to five consecutive days. The persistence times of mice and rats were in general similar, with an estimated median time of 1 day. However, we found considerable differences according to road type and position on the road: the estimated median persistence time was substantially longer for carcasses on the four-lane roads, and longer on the road shoulders compared to the traffic lanes. Overall, we estimated an annual mortality of small animals to be higher than 100.000 individuals in Federal District, of which ca. 10% in dirt roads. Our results confirm that a great proportion of carcasses are likely to be undetected in roadkill surveys, particularly small body sized animals, and that such errors are also related to the type of road and the position of carcasses on the road. We highlight that the impact of dirt and two-lane roads on wildlife may be greatly underestimated."}, "num_resources": 1, "num_tags": 2, "organization": {"id": "bca483f7-26e2-4ed8-99e8-65f5b3c7a26e", "name": "iepnb", "title": "", "type": "organization", "description": "", "image_url": "", "created": "2026-06-23T14:36:08.942021", "is_organization": true, "approval_status": "approved", "state": "active"}, "owner_org": "bca483f7-26e2-4ed8-99e8-65f5b3c7a26e", "private": false, "provenance": {"en": "", "es": ""}, "publisher_email": "buzon-bdatos@miteco.es", "publisher_name": "\u00c1rea de Banco de Datos de la Naturaleza. Direcci\u00f3n General Biodiversidad, Bosques y Desertificaci\u00f3n. Ministerio para la Transici\u00f3n Ecol\u00f3gica y el Reto Demogr\u00e1fico", "publisher_type": "http://purl.org/adms/publishertype/NationalAuthority", "publisher_uri": "https://iepnb.es/catalogo/organization/iepnb", "publisher_url": "https://www.miteco.gob.es/", "purpose": {"en": "", "es": ""}, "reference": [], "schemingdcat_xls_metadata_template": false, "source": "", "spatial": "{\"type\": \"Polygon\", \"coordinates\": [[[-18.16, 27.64], [4.32, 27.64], [4.32, 43.79], [-18.16, 43.79], [-18.16, 27.64]]]}", "spatial_resolution_in_meters": "", "spatial_uri": "http://datos.gob.es/recurso/sector-publico/territorio/Pais/Espa\u00f1a", "state": "active", "study_variables": {"es": ""}, "tag_uri": ["http://inspire.ec.europa.eu/metadata-codelist/TopicCategory/environment"], "thematic_area": ["especies_silvestres"], "theme_es": ["http://datos.gob.es/kos/sector-publico/sector/medio-ambiente"], "title": "Assessing the effects of road type and position on the road on small mammal carcass persistence time.", "title_translated": {"en": "", "es": "Assessing the effects of road type and position on the road on small mammal carcass persistence time."}, "topic": "http://inspire.ec.europa.eu/metadata-codelist/TopicCategory/biota", "type": "dataset", "url": "https://iepnb.es:443/catalogo/dataset/ff77511a-34d7-5fd1-9ea4-d0bb07e6063b", "version": "", "version_notes": {"en": "", "es": ""}, "contact": [{"email": "organismo@example.org", "name": "Organismo publicador del Cat\u00e1logo", "role": "http://inspire.ec.europa.eu/metadata-codelist/ResponsiblePartyRole/pointOfContact", "uri": "http://datos.gob.es/recurso/sector-publico/org/Organismo/EA0000000", "url": "https://organismo.example.org/"}], "creator": [{"name": "Lima Santos, R.A. y Ascens\u00e3o, F."}], "groups": [{"description": "La fragmentaci\u00f3n del h\u00e1bitat se define como el proceso durante el cual una gran extensi\u00f3n de h\u00e1bitat se transforma en una serie de parches m\u00e1s peque\u00f1os de menor superficie total aislados entre s\u00ed por una matriz de h\u00e1bitats distinta de la original", "display_name": "Fragmentaci\u00f3n del h\u00e1bitat", "id": "10439641-6830-4144-a3ab-117add931cd5", "image_display_url": "https://upload.wikimedia.org/wikipedia/commons/thumb/5/53/Green_infrastructure_2010_UE_Illustr.jpg/320px-Green_infrastructure_2010_UE_Illustr.jpg", "name": "fragmentacion-habitat", "title": "Fragmentaci\u00f3n del h\u00e1bitat"}], "publisher": [{"email": "buzon-bdatos@miteco.es", "name": "\u00c1rea de Banco de Datos de la Naturaleza. 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