Results 51 to 60 of about 1,796,928 (262)

Illegal tusk harvest and the decline of tusk size in the African elephant

open access: yesEcology and Evolution, 2015
Summary Harvesting of wild populations can cause the evolution of morphological, behavioral, and life history traits that may compromise natural or sexual selection.
P. Chiyo, V. Obanda, David K. Korir
semanticscholar   +1 more source

Oldest well‐preserved euprimate petrosal, from the early Eocene of India (Vastan Lignite Mine, Gujarat)

open access: yesThe Anatomical Record, EarlyView.
Abstract An exquisitely preserved, isolated partial petrosal with associated fragmentary stapes is described from the Vastan Lignite Mine (Gujarat, India), dated to the early Eocene (~54.5 Ma). Several anatomical traits (e.g., large petrosal plate; posterolateral entry of the internal carotid artery to the tympanic cavity; bony tubes surrounding the ...
Mary T. Silcox   +8 more
wiley   +1 more source

Migrant success in UK Education: Are there lessons for government social mobility policy?

open access: yesBritish Educational Research Journal, EarlyView.
Abstract The school achievement and career aspirations of 23 sixth form students at a multi‐cultural urban academy in the UK are explored through interviews. The sample includes 16 s‐generation migrants, 6 UK‐born students with migrant parents and 1 UK‐born student, selected to represent a cohort of over 300 post‐16 learners.
Bernard Barker, Kate Hoskins
wiley   +1 more source

Recent U. S. imports of certain products from the African elephant

open access: yesPachyderm, 1988
In 1978 the African elephant was listed as threatened under the U.S. Endangered Species Act. Between 1977 and 1983, bills were introduced in the U.S. Congress prohibiting the importation of elephant products.
Jorgen Thomsen
doaj   +1 more source

How wildlife respond to tropical cyclones: short‐term tactics and long‐term impacts

open access: yesBiological Reviews, EarlyView.
ABSTRACT From butterflies to lizards and from sharks to seabirds, wildlife exhibit tactics to survive the impacts of tropical cyclones, also known as hurricanes, cyclones, or typhoons depending on where they occur. Some species seek refuge during the storm by moving, some remain in place and ride it out, and others move longer distances, avoiding the ...
Erin L. Koen   +15 more
wiley   +1 more source

The evidence base for ranger patrol effectiveness in conservation and how to improve it

open access: yesBiological Reviews, EarlyView.
ABSTRACT Ranger patrols are a cornerstone of wildlife protection efforts around the world and occur across all ecological governance systems. Evidence that patrols reduce threats to wildlife and enable their recovery has not been systematically examined previously.
Trina Rytwinski   +19 more
wiley   +1 more source

The Elephant Ethogram: a library of African elephant behaviour

open access: yesPachyderm, 2021
This short paper is intended to alert our colleagues to the existence of The Elephant Ethogram: A Library of African Elephant Behaviour. It describes its purpose, form and scope, and appeals for contributions of undocumented, rare, novel or cultural Loxodonta africana behaviour.
Joyce Poole, Petter Granli
openaire   +2 more sources

African Elephant Alarm Calls Distinguish between Threats from Humans and Bees

open access: yesPLoS ONE, 2014
The Samburu pastoralists of Northern Kenya co-exist with African elephants, Loxodonta africana, and compete over resources such as watering holes. Audio playback experiments demonstrate that African elephants produce alarm calls in response to the voices
J. Soltis   +4 more
semanticscholar   +1 more source

Counting cases, conserving species: addressing highly pathogenic avian influenza in wildlife

open access: yesBiological Reviews, EarlyView.
ABSTRACT Highly pathogenic avian influenza (HPAI) has become a critical threat to wildlife, shifting from a seasonal epizootic to a persistent, year‐round panzootic with global consequences. Here, we summarise the origin, evolutionary mechanisms, and expanding host range of the current H5N1 virus (clade 2.3.4.4b) and assess its impact on wildlife. Over
Ulrich Knief   +4 more
wiley   +1 more source

Ticks of four-toed elephant shrews and Southern African hedgehogs

open access: yesOnderstepoort Journal of Veterinary Research, 2011
Several studies on ticks infesting small mammals, including elephant shrews, have been conducted in South Africa; however, these studies have included only a single four-toed elephant shrew and no hedgehogs.
Ivan G. Horak   +4 more
doaj   +1 more source

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