Results 31 to 40 of about 2,644 (184)

Nueva especie para Tucumán

open access: yesNuestras Aves, 1989
This article does not have an abstract.
openaire   +1 more source

A global assessment of animal community responses to agricultural management

open access: yesConservation Biology, EarlyView.
Abstract Transitions in agricultural management through crop and noncrop diversification on intensively managed croplands or pastures have benefited biodiversity. However, the extent to which agricultural management benefits species communities present in undisturbed ecosystems remains largely unclear.
Susana López Rodríguez   +3 more
wiley   +1 more source

Evaluating the use of taxonomy in the IUCN Red List

open access: yesConservation Biology, EarlyView.
Abstract Taxonomy defines the units that conservationists strive to preserve for future generations. However, the discovery of new species and the taxonomic revision of existing species affect conservation efforts. Despite the importance of taxonomy for a species’ conservation, there is currently no overview of how those leading species extinction risk
Stephen T. Garnett   +8 more
wiley   +1 more source

Rubus macvaughianus sp. n. (Rosaceae), una frambuesa silvestre de posible interés hortícola

open access: yesActa Botanica Mexicana, 1989
Se rescribe Rubus macvaughianus sp. n., una frambuesa con frutos de excelente sabor, procedente del Cerro Zamorano, en los límites de Querétaro y Guanajuato.
Jerzy Rzedowski   +1 more
doaj   +1 more source

Uncovering correlates of decline and critical refuges for a threatened terrestrial mammal

open access: yesConservation Biology, EarlyView.
Abstract Globally, the geographic ranges of numerous species are contracting. Identifying spatiotemporal patterns of threat impact can illuminate why species decline in some parts of their range but persist in others. We developed a correlative approach to identify species’ response thresholds and locate ecological refuge areas associated with ...
Natalya M. Maitz   +5 more
wiley   +1 more source

Assessing responses of reef island seabirds to environmental and anthropogenic drivers

open access: yesConservation Biology, EarlyView.
Abstract Tropical insular ecosystems face escalating, cumulative impacts of land‐ and sea‐based ecological threats that jeopardize the long‐term sustainability of their native communities. This joint vulnerability is epitomized by reef island seabirds, which are exposed to reef decline and coastal erosion driven by climate change, reduction in prey ...
Tristan Berr   +7 more
wiley   +1 more source

Estudios en Draba de Colombia II. Una nueva especie de la cordillera Oriental

open access: yesCaldasia, 1995
Draba arauquensis new specie from Colombia is described and ilustrated.Se describe e ilustra Draba arauquensis, caracterizada por la mezcla de pelos dendríticos, furcados y simples, que cubren la superficie foliar. La nueva especie guarda cierto grado de
Santana Castañeda Elvinia
doaj  

Nueva especie of Separatoppia Mahunka, 1983 (Acari, Oribatida, Oppiidae) de la India

open access: yesGraellsia, 2013
Se redescribe una nueva especie de ácaro oribátido de la familia Oppiidae –Separatoppia indica n. sp.– de India. La nueva especie es muy similar morfológicamente a Separatoppia concava Ermilov & Rybalov de Etiopía, pero se diferencia de ella por la ...
S. G. Ermilov, V. Pešić
doaj   +1 more source

Impact of global change on the distribution of mountain mammals and birds

open access: yesConservation Biology, EarlyView.
Abstract Climate change and land‐use changes are key drivers of global biodiversity loss. Many species are shifting to higher elevations or latitudes in response to global warming, often encountering unfavorable land‐use conditions during the shift. These changes can lead to reduced range size and increased extinction risks, particularly for mountain ...
Chiara Dragonetti   +5 more
wiley   +1 more source

Especie nueva de Oecobius (Araneae: Oecobidae) de Baja California México

open access: yesRevista Mexicana de Biodiversidad, 2005
SE DESCRIBE OECOBIUS HOFFMANNAE DE UN OASIS DE LA PENÍNSULA DE BAJA CALIFORNIA, MÉXICO, ARAÑA QUE SE CARACTERIZA POR PRESENTAR UN PEDIPALPO CON RÁDIX BICÚSPIDE, APÓFISIS RADICAL TRUNCADA Y CONDUCTOR CÓNCAVO EN VISTA LATERAL.
MARÍA LUISA JIMÉNEZ, JORGE LLINAS
doaj   +1 more source

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