Northward expansion of the Critically Endangered Arabian leopard in Dhofar, Oman

Oryx, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 5

Published: Feb. 10, 2025

Abstract The Critically Endangered Arabian leopard Panthera pardus nimr was believed to be absent from the Nejd region in Dhofar Governorate, Oman. However, a scat confirmed by DNA analysis 2011 and camera-trap images 2014 presence of this region. During 2014–2021, our camera traps documented at least eight individual leopards, demonstrating species is resident breeding This finding extends leopard's known range Oman c. 40 km northwards. To improve detection probability, we recommend that surveys for Peninsula are 18 weeks duration. We advocate designation central western areas as National Nature Reserve, protect critical habitat other

Language: Английский

A Test of the Long‐Term Efficiency of Genetic Rescue With Drosophila melanogaster

Molecular Ecology, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 18, 2025

ABSTRACT Genetic rescue is considered a promising but underutilised conservation strategy to mitigate inbreeding depression and restore genetic diversity. Yet, empirical evidence supporting its long‐term efficacy limited studies investigating short‐term effects. Here, we conducted an experiment with Drosophila test the efficiency of across generations. A wild population was captured found genetically diverse mass‐bred base (BP) in laboratory. Smaller populations 50 individuals each (N50) were then founded from BP maintained for 31 Three sets lines eight these N50 populations: non‐rescued (control), rescued males, males. These 33 Pupae productivity analysis showed substantial purging adaptation laboratory conditions BP. Rescued‐BP higher lower extinction rates compared lines. Whole‐genome sequencing line rescued‐BP revealed fewer deleterious alleles, diversity, line, suggesting efficient rescue. Our results enlighten importance introducing new variation allowing increase survival even small despite simultaneous introduction load, particularly when facing global changes affecting environmental both donor recipient populations.

Language: Английский

Linking the spatial and genomic structure of adaptive potential for conservation management: a review

Genome, Journal Year: 2024, Volume and Issue: 67(11), P. 403 - 423

Published: July 31, 2024

We unified the recent literature with goal to contribute discussion on how genetic diversity might best be conserved. argue that this decision will guided by genomic variation is distributed among manageable populations (i.e., its spatial structure), degree which adaptive potential predicted across entire genome or subset of identified as putatively and whether we are managing species single entities collections diversifying lineages. The distribution our ultimate have practical implications for on-the-ground management. If largely polygenic responsive change, structure broadly governed forces determining genome-wide (linked selection, drift, gene flow), making measurement prioritization straightforward. entities, then population-level schemes possible so maximize future pooled variation. outline one such scheme based popular Shapley value from cooperative game theory considers relative contribution a population an unknown collection populations.

Language: Английский