Roadsides are key habitats for birds in the Argentine Pampas: conservation and management implications

2021 ◽  
pp. 1-6
Author(s):  
Daniela María Depalma ◽  
Mariela Verónica Lacoretz ◽  
Cecilia Zilli ◽  
Emilio Martín Charnelli ◽  
Myriam Emilia Mermoz
Keyword(s):  
Management Strategies ◽  
Tall Grass ◽  
Vegetation Diversity ◽  
Seed Availability ◽  
Bird Richness ◽  
Public Areas ◽  
Declining Species ◽  
Native Birds ◽  
Argentine Pampas ◽  
Conservation And Management

Summary Unexploited public areas such as roadsides could provide habitat to help preserve biodiversity in South America, as in other regions. Our objective was to determine the importance of the roadsides of the Argentine Pampas for native birds and to suggest management strategies. We surveyed birds inhabiting roadsides in all seasons and determined whether roadsides were used as habitat. We recorded a total of 95 species on roadsides, which represents 55% of those species described from the area. Species included specialists of grassland, wetland and woodland, 4 vulnerable species and 19 declining species. Bird richness decreased in winter, as well as grassland specialists’ abundances. Most individuals used roadsides for foraging and performing reproduction-related behaviours, mainly on native trees; these and tall grass were the main substrates. We conclude that many species of birds use the habitat provided by roadsides, and we recommend management strategies such as favouring seed availability in winter, restoring trees and tall grass and increasing vegetation diversity to maximize roadside conservation value.

scholarly journals Cases of spontaneous interbreeding of wolf and domestic dog in the region of Southeast Banat

2006 ◽  
Vol 58 (4) ◽  
pp. 225-231 ◽  
Author(s):  
M. Milenkovic ◽  
Vesna Habijan-Mikes ◽  
Rada Matic
Keyword(s):  
Genetic Structure ◽  
Management Strategies ◽  
Domestic Dog ◽  
Primary Concern ◽  
Local Process ◽  
Conservation And Management

The study presents the first documented data indicating the occurrence of spontaneous interbreeding of wolf and domestic dog in nature on the territory of Serbia, based on three specimens originating from the region of Southeast Banat. Some unique morpho-anatomical malformations of the cranium in two specimens are described. Based on complex morphological and craniometrical analysis of hybrid specimens and comparison with the corresponding material of authentic wolves from this region, it is possible to follow a local process of multiple wolf/dog hybridization and disturbance of the authentic genetic structure of wolf. The identification of wolf/dog hybrids is a subject of primary concern for the development of conservation and management strategies. Because of great vulnerability of the population of South-Carpathian wolves on the boundaries of their range in Serbia, there is a need for permanent and increased protection in order to maintain their adequately strong population in this region. .

Seven new species of Graphidaceae (Lichenized Ascomycetes) from the Coastal Plain of southeastern North America

Phytotaxa ◽  
2014 ◽  
Vol 189 (1) ◽  
pp. 153 ◽  
Author(s):  
James C. Lendemer ◽  
Richard C. Harris
Keyword(s):  
North Carolina ◽  
New Species ◽  
North America ◽  
Coastal Plain ◽  
Management Strategies ◽  
Lichenized Ascomycetes ◽  
North America North ◽  
Effective Conservation ◽  
Conservation And Management

Seven new species of Graphidaceae are described from the Coastal Plain of southeastern North America: Acanthothecis floridana (Florida, USA), A. leucoxanthoides (North Carolina, USA), A. paucispora (North Carolina, USA), Fissurina alligatorensis (Florida and North Carolina, USA), F. americana (Florida and Georgia, USA), F. ilicicola (Florida and Georgia, USA), and Phaeographis oricola (North Carolina, USA). The ecology and distribution of each species is discussed in the broader context of the imminent need for effective conservation and management strategies to maintain the lichen biodiversity in the region. Color illustrations of all species are provided, as are keys to the genera Acanthothecis and Fissurina in North America north of Mexico.

Black Bass Diversity: Multidisciplinary Science for Conservation

2015 ◽  
Keyword(s):  
Population Dynamics ◽  
Management Strategies ◽  
Smallmouth Bass ◽  
Micropterus Dolomieu ◽  
Spawning Period ◽  
Sampling Gear ◽  
Gray Literature ◽  
Black Bass ◽  
Effective Conservation ◽  
Conservation And Management

<em>Abstract</em>.—We reviewed the published and gray literature associated with Neosho Smallmouth Bass <em>Micropterus dolomieu velox</em> and the genetically distinct Ouachita lineage. Substantial interstream variation appears to occur among these populations, particularly related to age. The Neosho subspecies is more abundant, grows faster, and lives longer than the genetically distinct Ouachita lineage. Recruitment is highly variable among streams for both populations and appears to be related to some undescribed aspects of hydrology but also likely reflect bias due to sampling gear. Information on annual and seasonal trends is lacking for the Neosho subspecies and the Ouachita lineages, particularly as related to the spawning period. Conservation efforts for these lineages might benefit from agencies partnering to achieve goals that extend beyond a particular agency’s responsibilities and state boundaries. Recognition of spatial and temporal considerations, combined with a better understanding of the population dynamics as related to abundance, growth, mortality and reproduction, would benefit the creation of more effective conservation and management strategies for genetically distinct populations of Smallmouth Bass <em>M. dolomieu</em>.

Biocomplexity in a demersal exploited fish, white hake (Urophycis tenuis): depth-related structure and inadequacy of current management approaches

2012 ◽  
Vol 69 (3) ◽  
pp. 415-429 ◽  
Author(s):  
Denis Roy ◽  
Thomas R. Hurlbut ◽  
Daniel E. Ruzzante
Keyword(s):  
Population Structure ◽  
Fisheries Management ◽  
Management Strategies ◽  
Marine Species ◽  
Current Management ◽  
Recovery Strategies ◽  
Management Schemes ◽  
Management Approaches ◽  
Management Priorities ◽  
Conservation And Management

Understanding the factors generating patterns of genetic diversity is critical to implementing robust conservation and management strategies for exploited marine species. Yet, often too little is known about population structure to properly tailor management schemes. Here we report evidence of substantial population structure in white hake ( Urophycis tenuis ) in the Northwest Atlantic, perhaps among the highest levels of population structure exhibited by a highly exploited, widely dispersed, long-lived marine fish. We show that depth plays a role in this extensive and temporally stable structure, which does not conform to previously established fisheries management units. Three genetically distinguishable populations were identified, where all straddle several management divisions and two (Southern Gulf of St. Lawrence and Scotian Shelf) overlap in their range, coexisting within a single division. The most highly exploited population in the Southern Gulf of St. Lawrence was also the most isolated and likely the smallest (genetically effective). This work shows that conservation and management priorities must include population structure and stability in establishing effective species recovery strategies.

scholarly journals Introduction to the Special Issue: The role of seed dispersal in plant populations: perspectives and advances in a changing world

AoB Plants ◽  
2020 ◽  
Vol 12 (2) ◽  
Author(s):  
Noelle G Beckman ◽  
Clare E Aslan ◽  
Haldre S Rogers
Keyword(s):  
Population Dynamics ◽  
Seed Dispersal ◽  
Plant Community ◽  
Management Strategies ◽  
Plant Population ◽  
Plant Population Dynamics ◽  
Special Issue ◽  
Plant Populations ◽  
Conservation And Management

Abstract Despite the importance of seed dispersal as a driving process behind plant community assembly, our understanding of the role of seed dispersal in plant population persistence and spread remains incomplete. As a result, our ability to predict the effects of global change on plant populations is hampered. We need to better understand the fundamental link between seed dispersal and population dynamics in order to make predictive generalizations across species and systems, to better understand plant community structure and function, and to make appropriate conservation and management responses related to seed dispersal. To tackle these important knowledge gaps, we established the CoDisperse Network and convened an interdisciplinary, NSF-sponsored Seed Dispersal Workshop in 2016, during which we explored the role of seed dispersal in plant population dynamics (NSF DEB Award # 1548194). In this Special Issue, we consider the current state of seed dispersal ecology and identify the following collaborative research needs: (i) the development of a mechanistic understanding of the movement process influencing dispersal of seeds; (ii) improved quantification of the relative influence of seed dispersal on plant fitness compared to processes occurring at other life history stages; (iii) an ability to scale from individual plants to ecosystems to quantify the influence of dispersal on ecosystem function; and (iv) the incorporation of seed dispersal ecology into conservation and management strategies.

scholarly journals Life history, distribution and abundance of the giant earthworm Rhinodrilus alatus RIGHI 1971: conservation and management implications

2013 ◽  
Vol 73 (4) ◽  
pp. 699-708 ◽  
Author(s):  
MA. Drumond ◽  
AQ. Guimarães ◽  
HR. El Bizri ◽  
LC. Giovanetti ◽  
DG. Sepúlveda ◽  
...  
Keyword(s):  
Life History ◽  
Management Strategies ◽  
The Body ◽  
Brazilian Cerrado ◽  
Abundance Distribution ◽  
Ecological Data ◽  
Land Use Conversion ◽  
Eucalyptus Plantation ◽  
Live Bait ◽  
Conservation And Management

Rhinodrilus alatus is an endemic giant earthworm of the Brazilian Cerrado hotspot used as live bait for about 80 years. The goal of this study was to gather ecological data about this species, which will support the establishment of management strategies. The life history, distribution and abundance of R. alatus were investigated in Cerrado, pastures and Eucalyptus plantation areas following the harvesting activities of the local extractors of this species. We found that this earthworm is abundant in all of the sampled areas, showing its resilience to land-use conversion. The Capture Per Unit Effort was 4.4 ± 5 individuals per 100 metres of transect and 5.6 ± 3 individuals per hour. The earthworm's annual cycle is markedly seasonal, with an aestivation period throughout the driest and coldest season of the year. Significant differences in the length and diameter of the body and in the diameter and depth of the aestivation chambers were found between the juveniles and adults. The distribution range of the species was expanded from two to 17 counties. The life history, abundance, distribution and resilience of R. alatus to certain perturbations are key elements to be considered in conservation and management strategies for this species.

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